Abstract:The purpose of this experiment was to study the effects of Qizao extract on egg quality, lipid metabolism and serum antioxidant indexes of Yugan silky chickens. 120 240-day-old Yugan silky chickens in good body condition were selected for the experiment and randomly divided into 4 groups with 6 replicates in each group and 5 chickens in each replicate.The control group was fed the basal diet. The experimental group added 100,200 and 400 mg/kg of Qizao extract to the basal diet, respectively.The test period was 56 days.The results showed that:(1) The eggshell yellowness of Yugan silky chicken increased linearly with the increase of Qizao extract (P<0.05), and Haugh unit, egg yolk index and eggshell redness changed quadratically (P<0.05),there were no significant differences among the other egg quality indexes among the groups.(2)Adding Qizao extract to diet had no significant difference on serum triglyceride, total cholesterol, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol of Yugan silky chicken. (3) Qizao extract had no effect on the cholesterol content of Yugan black-bone egg yolk. (4) The expression levels of VLDLR in Yugan silky chicken ovary and HMGR in liver showed a quadratic curve with the increase of Qizao extract (P < 0.05). (5) The content of CAT, T-AOC and MDA in Yugan silky chicken serum showed a quadratic curve with the increase of Qizao extract (P < 0.05). It can be seen that adding Qizao extract to the diet can improve the antioxidant capacity of Yugan silky chickens, and regulate the content of egg yolk cholesterol by regulating the fat metabolism in serum and inhibiting the expression levels of HMGR and VLDLR genes. The optimal addition amount is 200 mg/kg.

Abstract:In this study, 20 Laiwu black pigs (10 castrated boars and 10 sows) were slaughtered at the weight stage of 87-128 kg to study the carcass performance and meat quality of test pigs with different slaughter weights. The results showed that the average backfat thickness and fat percentage were the highest at the stage of 121-128 kg, which were increased by 24.03% (P< 0.01), 8.86% (P> 0.05), and 14.42% (P< 0.05), 1.45% (P> 0.05). The eye muscle area was the highest at the stage of 121-128kg, which was 15.05% higher than that at the stage of 104-112 kg (P< 0.05). Lean meat percentage and shear force were the highest at the stage of 87-103 kg, which were 8.96% (P< 0.05), 10.83% (P< 0.05), and 9.72% (P> 0.05) higher than those of 104-112 kg and 121-128 kg, respectively.), 47.07% (P< 0.05). Both valine and phenylalanine were the highest in the 87-103 kg body weight stage, which were 16.28% (P< 0.01), 17.65% (P< 0.01), and 19.32% higher than those in the 104-112 kg and 121-128 kg stages, respectively. (P< 0.01) and 16.67% (P< 0.01). There were no significant differences in other indicators among different slaughter weights.

Abstract:The purpose of this study is to explore the effects of different levels of compound Chinese herbal medicine additives on the performance, blood biochemical indicators and carcass quality of white-feathered king pigeons, and to evaluate the effect and optimal dosage of self-made compound Chinese herbal medicine additives. In this study, 400 pairs of close-weight, healthy parent pigeons and 800 pigeons were randomly divided into 4 groups, with 4 repetitions in each group, and 25 pairs of breeding pigeons and 50 pigeons in each repetition. Each group added 0 (control group), 0.05%, 0.1%, and 0.15% compound Chinese herbal medicine additives to the basal diet respectively. The experimental period of this study was 28 days. The results showed that: ①Compared with the control group, the fertilization rate of pigeons in groups Ⅰ, Ⅱ, and Ⅲ was significantly increased by 0.88%, 1.82%, and 0.97% (P < 0.05), and the egg-laying interval of group Ⅱ was significantly reduced by 17.41% (P < 0.05) ②Compared with the control group, the body weight of pigeons in groups Ⅰ, Ⅱ, and Ⅲ increased significantly by 7.87%, 13.24%, and 6.58% (P< 0.05), and the average daily weight gain of pigeons in groups Ⅰ, Ⅱ, and Ⅲ increased significantly by 8.24%, 13.51%. %, 6.72% (P< 0.05). ③Compared with the control group, the serum TP level of pigeons in group II was significantly increased by 10.20% (P< 0.05), the serum level of GLO in group II was significantly increased by 7.49% (P<0.05), and the serum AST in group III was significantly increased by 22% (P<0.05), the serum LDL of pigeons in groups Ⅰ and Ⅱ significantly increased by 8.22% and 21.38% (P< 0.05).④Compared with the control group, the water loss rate of pigeon breast muscle in group Ⅱ was significantly reduced by 9.47% (P< 0.05), and the shear force of pigeon breast muscle in group Ⅱ was significantly reduced by 9.37% (P< 0.05). In conclusion, the compound Chinese herbal medicine additive can improve the production performance of the white-feathered king pigeon, improve the breast muscle quality and blood biochemical indicators of the pigeon, and the optimum addition ratio of the compound Chinese herbal medicine additive is 0.1%.

Abstract:To compare the effects of classical swine fever E2 genetically engineered subunit vaccine and live swine fever vaccine on the immune effect and production performance of fattening pigs, so as to provide reference for large-scale pig farms when selecting swine fever vaccine. In this experiment, a batch of healthy weaned piglets were selected from a generation farm in Hanzhong and divided into three groups, group A was immune to swine fever E2 genetically engineered subunit vaccine (referred to as E2 subunit vaccine), group B was immune to live swine fever vaccine (spleen leaching source), and group C was the control group without swine fever vaccine immunization. After 60 days of immunization, 10, 15 and 12 blood samples were randomly selected from each group, and the swine fever antibody level was detected with the swine fever virus antibody detection kits. The results showed that the immune effect of the two swine fever vaccines on fattening pigs was highly significant (P<0.01), and the E2 subunit vaccine could significantly improve the antibody blocking rate and reduce the dispersion of fattening pigs compared with live swine fever vaccine, and contribute to the healthy growth of fattening pigs.

Abstract:In order to study the early growth and development of Taiping chickens and improve the effect of breed selection, this study used Logistic, Von Bertalanffy, and Gompertz three nonlinear growth models to fit the body weight, and correlated the body weight and body size at 13 weeks of age analyze. The results show that the Gompertz model has the best fitting effect on the body weight of Taiping chickens from 0 to 15 weeks old. The inflection point ages of Taiping cocks and hens obtained by fitting are 7.08 weeks and 6.84 weeks respectively, and the inflection point weights are 572.24 g and 482.74 g, and the mature body weights were 1 555.34 g and 1 312.09 g, respectively. There were varying degrees of correlations between the body weight and body size of 13-week-old Taiping chickens, and the body weight of roosters was significantly positively correlated with body oblique length, keel length, shin length, shin girth, and pelvic width (P< 0.01). The body weight of hens was significantly positively correlated with keel length, shin length, shin girth, chest girth, and pelvic width (P< 0.01).

Abstract:The aim of this experiment was to investigate the toxicity effects of melittin-thanatin recombinant antimicrobial peptide (MT-W) on Kunming mice. The effects of MT-W on major organs of mice were studied by oral acute toxicity test and oral bioavailability test, and biochemical indexes such as alkaline phosphatase, alanine aminotransferase and aspartate aminotransferase in blood were detected, as well as the absorption of MT-W in vivo. The results showed that MT-W had no significant effects on the body weight and organ/body weight ratio of experimental mice, and there was no statistical difference in blood biochemical indexes between the control group and the control group. No MT-W was detected in plasma of mice given MT-W solution at 50mg/kg body weight. Studies have shown that MT-W has no obvious toxic and side effects on mice, and MT-W is not effectively absorbed after oral administration.

Abstract:In this study, 5 kinds of rat poison products on the market were selected, one was 0.005% Brodifacoum granules, two were 0.005% Brodifacoum products (one wax block formulation, one rice formulation), and one was 0.075% bile calcification Alcohol products, 1 tracking cream product. Now this study evaluates the effect of rat poison through the same amount of rat poison feeding test and rat poison ad libitum feeding test, and the statistical parameters are death and food intake. We have screened out rodent control products that are more suitable for farm breeders. The conclusion is that the five products are all effective rat poisons, and the use of 0.005% Brodifacoum granule, 0.075% cholecalciferol and tracking ointment is better. At the same time, we have worked out a rat poison usage plan suitable for breeder farms.

Abstract:In this study, in order to promote fine breeds to become dominant species in alpine pastoral areas, purebred Euler Tibetan sheep were selected as male parents, Qinghai Tibetan sheep and Smalltailed Han sheep were used as female parents, and three groups of A, B and C were crossed and bred. The test results showed that the birth weight of hybrid lambs was 4.3 kg in group A, 3.7 kg in group B, 4.4 kg in group C, and 0.8, 0.7 and 1.2 kg in the control group, respectively. The birth weights of A, B and C were significantly different from those of the control group (P< 0.01). Among them, group C had the largest birth weight. Compared with the control group, the carcass weight of the 12-month-old hybrid sheep increased by 109% in the Euler type Tibetan sheep and Qinghai Tibetan sheep hybrid group, and 88% in the Euler type Tibetan sheep and Smalltailed Han sheep hybrid group. The improvement rate of hybrid Tibetan sheep and Qinghai Tibetan sheep was 60%, which was significantly different from that of the control group (P< 0.01). The body weight of adult rams of Eulertype Tibetan hybrids is 9.5% higher than that of Qinghai Tibetan sheep, 7.2% higher than that of ewes, and 4.2% higher than that of smalltailed Han sheep, and 5.8% higher than that of ewes. The highenergy, highprotein, lowfat and lowcholesterol characteristics of its meat quality are still rising, and the amino acid content is more abundant.

Abstract:The graintofeeding project is an effective measure to start with the supplyside structural reform of the agricultural and animal husbandry structure, adjust the planting structure, and implement the combination of planting and breeding. Ganzhou District, as the first batch of pilot areas for the graintofeeding project in Gansu Province, has achieved positive results after years of implementation. This paper puts forward suggestions for sustainable development of the project after carefully analyzing the status quo of the project, the effectiveness of project implementation, and the development model of the combination of supply and demand and mutual promotion of forage planting and aquaculture.

Abstract:Guyang mutton is the most representative geographical indication of agricultural products in Guyang County, Baotou City, Inner Mongolia Autonomous Region. Guyang mutton has a long history. Its tender meat, no smell of mutton, uniform fat distribution, low fat content and rich nutrition make Guyang mutton a highquality product among mutton. In the future development, Guyang County will adhere to the geographical characteristics of 41° north latitude, give full play to its brand advantages, and strive to make Guyang mutton the main force leading the development of the county's animal husbandry industry.

Abstract:In recent years, under the background that the rural revitalization strategy has effectively continued the fight against poverty, industrial revitalization has become a powerful starting point for the implementation of the rural revitalization strategy. In order to effectively develop modern animal husbandry, we must change the previous development strategy of animal husbandry, and completely realize the transformation from quantity to quality, from rough to fine, from agriculture to industry, from local area to wide area, and from individual to whole. We must adhere to the new development concept, and promote the highquality development of animal husbandry through a multipronged approach with a highstandard industrial structure. This paper takes county animal husbandry as an example to discuss how to promote the transformation and upgrading of animal husbandry. This is for reference only.

Abstract:Uterine torsion, as a clinical obstetric disease of cows, can easily lead to the death of cows and fetuses if handled improperly, resulting in serious economic losses. In veterinary clinics, by learning from Guo Junqing's research results, a variety of methods have been adopted to apply abdominal wall pressure and maternal inversion to dispose of bovine uterine torsion, and good results have been achieved. Therefore, on the basis of analyzing the causes of bovine uterine torsion, this paper discusses the optimal application of abdominal wall pressure combined with maternal inversion for the treatment of bovine uterine torsion. The disposal rate provides a certain technical reference.

Abstract:Liangzhou District of Wuwei City is endowed with unique agricultural resources and is a strong county in the province's mutton sheep industry. The amount of sheep breeding ranks among the top 3 in the province. In recent years, Liangzhou District has focused on building "three characteristic industrial belts" along the mountains, rivers and sands, and vigorously developed the "10 + N" characteristic industries of cattle, sheep, pigs, poultry, vegetables, fruits, fungi, potatoes, and herbs. Wuwei Pukang National Sheep Core Breeding Base. A batch of key agricultural projects such as Qingruiyuan Provincial Sheep Farm have been put into construction, and the mutton sheep industry system has been initially established, and the mutton sheep industry has a strong development momentum.

Abstract:Relying on rich forage resources and superior geographical location, Linze County has vigorously developed animal husbandry, and has now formed a highquality development pattern with high output efficiency, product safety, resource conservation, and environmental friendliness. On the basis of full research, this paper analyzes the types, characteristics, benefits and existing problems of the beef cattle breeding model in the whole county, and puts forward corresponding development countermeasures for the existing problems.

Abstract:The industry adheres to the combination of production and ecology, and continues to promote the scientific development of herbivorous animal husbandry. The industry implements the concept of innovative, coordinated, green, open, and shared development, accelerates the construction of a modern forage industry system, and forms a development pattern of grass industry and herbivorous animal husbandry with largescale production and intensive management. This has promoted the sustainable development of herbivorous animal husbandry and the comprehensive building of a moderately prosperous society.

Abstract:The "14th FiveYear Plan" period is a period of strategic opportunities for the highquality development of agriculture, and it is also a critical period for the two "three products and one standard" to promote the formation of highquality edible agricultural products. In recent years, based on the advantages of natural resources and unique breeds, Tianzhu County has vigorously developed the "unique" white yak characteristic industry, focusing on improving the production performance and meat quality of white yaks. However, with the continuous advancement of the national ecological strategy, the natural grazing space for white yaks has been reduced. After the transformation of the breeding method, there will be new bottlenecks and challenges in improving the quality of white yak meat, which urgently need to be resolved.

Abstract:Jiayuguan City, located at the western end of Gansu Province, is an industrial tourism city. The urbanization rate here is 94.43%. In recent years, Jiayuguan City has insisted on using industrial thinking to plan modern agriculture, closely focused on the development of grassfed animal husbandry, and actively strived for projects such as the construction of oat grass planting bases and graintofeeding projects. This has cultivated a group of beef cattle breeding and fattening demonstration households, which has made great contributions to adjusting the structure of the animal husbandry industry and improving the competitiveness of the agricultural product market. However, there are still some problems that cannot be ignored in actual production. We put forward corresponding countermeasures and suggestions through investigation and research.

Abstract:This paper points out the background and significance of Alpine Merino sheep breeding based on the current situation and trend of finewool sheep breeding at home and abroad. We analyze the characteristics of the varieties and summarize the current situation of breed selection. Aiming at the existing problems, this paper puts forward the breeding goal and direction, work organization and safeguard measures. This is aimed at scientific selection and exerting its varietal value.

Abstract:The beef cattle industry in the northern pastoral area of Tongliao City is one of the important components of the development of animal husbandry in the city. This study analyzes the development status, existing problems and countermeasures of beef cattle improvement in northern pastoral areas of Tongliao City. This will help to improve the quality and efficiency of the beef cattle industry in Tongliao City, and promote the transformation and upgrading of grassland animal husbandry in northern pastoral areas, thereby achieving the goal of increasing production and income for farmers and herdsmen.

Abstract:This study aims to improve the promotion and improvement progress of Alpine Merino sheep and enhance the overall market competitiveness of the fine wool sheep industry. After extensive research, this study found that the promotion of highquality alpine merino sheep has broad prospects, but due to the unsound promotion system, standardized wool production system, weak wool market and the impact of the mutton sheep industry, the promotion of finewool sheep is relatively low, resulting in slow promotion. With the development of the national seed industry revitalization plan, the gradual improvement of pastoral infrastructure and the improvement of the cultural level of farmers and herdsmen. The industry takes advantage of policy advantages, geographical advantages and characteristic advantages to establish a complete breeding and promotion system, a standardized production system, increase technical personnel training, and regain the confidence of farmers and herdsmen in breeding. This has strengthened the cultivation and protection of highquality finewool sheep varieties, accelerated the improvement and expansion of excellent finewool sheep varieties, increased the preferential policy support for the finewool sheep industry, and promoted the construction of finewool sheep industry chain cooperatives. This improves the market competitiveness of finewool sheep breeding benefits and livestock products.

Abstract:In order to clarify the current situation of the development of the cattle industry in our county and provide a decisionmaking basis for the next step of development. We conducted a comprehensive investigation on the development of the cattle industry in the county, and mastered the development status and existing problems of the cattle industry in the county. After summarizing, analyzing and discussing these, some opinions and suggestions for the development of the cattle industry are put forward.

Abstract:With the consolidation of the achievements of poverty alleviation and the acceleration of the process of rural revitalization, Weiyuan County's agricultural industrial structure has been gradually optimized and transformed. Through the implementation of household breeding and other projects, the proportion of grass and animal husbandry income in the total agricultural income has been further increased. This has strongly promoted the continuous expansion of highquality pasture planting area. The recycling model of "grass planting  livestock raising  organic fertilizer production  planting" has been gradually established and improved, and the grass industry has shown a good development momentum and potential. This paper investigates the development history of grass industry in Weiyuan County and the current situation of grass industry development. We summarized the achievements of the county's grass industry development and the advantages of sustainable development, and put forward suggestions for the problems existing in the county's grass industry development.

Abstract:Kalaazar, also known as visceral leishmaniasis, is a serious zoonosis. In recent years, several human cases of kala azar have occurred in Suide County. Tracing back to the historical occurrence of kalaazar among people and livestock, the majority of medical and nursing personnel and livestock and veterinary practitioners in Suide County have conducted indepth epidemiological monitoring, analyzed the causes of the disease, and put forward suggestions for comprehensive prevention and control of kalaazar in the future.

Abstract:With the proposal of the national “One Belt, One Road” initiative, the development of Yunnan Veterinary Medicine also welcomes gratifying opportunities for international development. Its necessity lies in the fact that cooperative education is in response to the needs of the country's "Belt and Road" initiative in South Asia. The construction of "South Asia and Southeast Asia Radiation Center" requires the internationalization of various disciplines, and the prevention and control of crossborder animal diseases urgently needs veterinary talents who can adapt to internationalization. Its feasibility is reflected in the country's emphasis on Sinoforeign cooperative education, the development of Yunnan's animal husbandry industry and its unique location advantages, which make the source of students and employment prospects good. We must actively respond to challenges such as the need for Chinese professional teachers to carry out English teaching, the localization of the training model for international talents, the management of foreign teachers in China, and ideological and political education. The development of Yunnan Veterinary Medicine will reach a new stage. Carrying out international cooperation to cultivate newtype veterinary medical professionals will provide talent guarantee for enhancing the international competitiveness of livestock and poultry products in Yunnan Province.

Abstract:"Veterinary Pharmacy" is a comprehensive technical science that studies the basic theory, prescription design, preparation process, quality control and rational application of special pharmaceutical preparations for livestock and poultry. It is the core course in the training program for animal medicine and animal pharmacy. Based on the new requirements of our college's characteristic specialty construction and innovative talent training, we try to combine the college's advantageous scientific research disciplines network pharmacology and epigenetic pharmacology with veterinary pharmacy. This aims to achieve highlevel innovation in the teaching of "Veterinary Pharmacy", enhance the innovation and challenge of the course, cultivate students' innovative spirit, and improve students' comprehensive quality. This is also of great significance for the research and development of new veterinary drug preparations and the guidance of clinical rational drug use.

Abstract:This study mainly takes the new breed of mutton sheep in Zhonghuan as an example. Through understanding, knowing and personally participating in the breeding process and application research introduction, mastering its breeding methods and related experimental operations, so as to improve one's professional level and working ability in mutton sheep breeding. The results show that the new breed of Zhonghuan mutton sheep grows faster than ordinary mutton sheep, has a high reproductive level, high feed conversion rate, and good meat quality, which has good application and promotion value. At present, the core group of new breeds of mutton sheep in Zhonghuan has reached 17,000, and 12,000 F1 generations have been cultivated. It can be seen that the breeding effect of this variety is remarkable. Improve breeding efficiency by speeding up the breeding process. Cultivate and multiply more highquality mutton sheep germplasm resources, and apply them to the local and surrounding cities and counties, so that farmers and professional cooperatives can achieve a stable increase in income through the development of the mutton sheep industry, and achieve the goal of common prosperity.

Abstract:Hu sheep breeding has formed an industrial chain in China, which is of great significance in helping to effectively link poverty alleviation to rural revitalization. However, we have found in production practice that Hu lambs have many lambs, low survival rate, slow growth and development, and a high incidence of mastitis in ewes. In recent years, we have adopted compulsory supplementary feeding technology to exercise the digestive system of lambs in advance, and achieved good results. In this study, two forced supplementary feeding methods of concentrate and concentrate + grass was compared in a largescale Hu sheep farm. The lambs were compared in terms of growth rate, growth and development of digestive tract, slaughter performance and histomorphology of gastrointestinal tract. We found that the effect of early forced supplementary feeding of concentrate + grass was significantly better than that of pure concentrate group. The research results are of great significance for largescale Hu sheep farms to increase the survival rate of lambs, reduce the incidence of mastitis in ewes, and improve the quality and efficiency of Hu sheep breeding.

Abstract:This experiment studies the optimal mixing ratio of alfalfa and whole corn for silage. The test set alfalfa singlestorage group, corn singlestorage group, and the ratio of alfalfa to whole plant rice and corn were 25∶75, 33∶67, 40∶60, 50∶50, 60∶40, 67∶33, 75∶25 respectively. There are 7 mixed silage groups. These are a total of 9 treatment groups. The results showed that compared with alfalfa single storage, mixed silage could effectively improve the fermentation quality of silage, but the nutritional quality was lower. Among all the mixed silage treatments, the fermentation quality of the mixed silage in the groups with the ratio of alfalfa to whole plant rice corn at 60∶40, 67∶33, and 75∶25 was better. Among the three groups, the mixed silage with a mixing ratio of 60∶40 had the highest relative feeding and could be popularized and applied in production.

Abstract:With the continuous promotion of agricultural mechanization, the original agricultural farming method of Erniu carrying the lever has gradually withdrawn from agricultural production. This was replaced by mechanized farming in agriculture. The use of cattle used to cultivate land has gradually become mainly for calving. There are no yellow cattle farming in the farmland, and the cattle herders are gone on the hillside. Instead, they are reared in captivity. Beef cattle are mainly raised by intensive fattening. Through the statistics of cases encountered in veterinary clinics, it is found that the cases of abnormal estrus in cows are gradually increasing, as high as 30% to 40%. According to the actual veterinary clinical work, the author found a rule that when the winter calving season comes, the number of cows with dystocia increases. After the cows calving, the farmers will feed them with corn paste every day, and the rumen accumulation will also increase. The price of silage in winter is high, and resources are scarce. They are worried that the cows will lose weight after calving and the milk secretion will be insufficient. During this process, many cows will suffer from puffiness, calf diarrhea, and rumen acidosis in cows. The most important thing is that the cows after calving are fed a large amount of concentrate for a long time, which leads to the body fat of the cows. In the diagnosis of traditional Chinese veterinary medicine, this belongs to a constitution of stagnation of cold and dampness, and the follicles are underdeveloped or stunted. Coupled with the longterm incorrect use of various veterinary drugs by animal owners, it leads to drug abuse and damage to animal bodies. The breeding industry is an industry that requires a lot of hard work. Only through the hard work of the farmers can the pastures of cattle and sheep be rich and thrive. The hard work of animal epidemic prevention workers can bring about the health and stability of animal populations. Animal husbandry and veterinary workers work with farmers to serve animals from breeding to slaughter.

Abstract:Semen collection training of breeding rams is the first step and the most important link in developing "ambient temperature artificial insemination technique for sheep", which directly affects the production target of sheep improvement. It is relatively simple in theory, but there are some difficulties in actual operation, mainly including the mastery of the details of operation, the skilled process of training procedures and method. This technique has played a leading role in the development of the mutton sheep industry in Gansu.

Abstract:The Yellow River Delta area is rich in natural reed resources, which not only improves the local ecological environment, but also can be used as feed to help the development of the animal husbandry industry. This paper discusses the reed silage technology around the key technology, collaborative technology and feeding technology of reed silage, which provides a reference for promoting the utilization of reed forage.

Abstract:This experiment is based on the climate characteristics and ecological resource advantages of Tongwei County, Gansu Province, and takes Yongda Bilinyuan Breeding Farmers Professional Cooperative in this county as a demonstration site. We carried out observation experiments on the adaptability of imported reed chickens and green-shell layer hens. Then, we selected free-range chicken breeds with high survival rate, good economic benefits, strong disease resistance, and suitable for stocking environment in Tongwei County. This has steadily promoted the transformation of the production mode of the poultry industry in Tongwei County. This promotes the promotion of new technologies throughout the county for the development of economical and healthy chicken farming and the development of ecological stocking experiments and demonstrations.

Abstract:Paratuberculosis of sheep is a chronic infectious disease caused by Mycobacterium paratuberculosis with intractable diarrhea and significant thickening of intestinal mucosa as the main clinical features. Most of them present invisible infection. The disease has a long incubation period, spreads rapidly, and is globally distributed. Its harm to animal husbandry is huge. Based on the actual situation of the research progress of ovine paratuberculosis, this paper summarizes the current research and discussion on the etiology, epidemiology, pathogenic mechanism, clinical diagnosis and comprehensive immune prevention and control of ovine paratuberculosis. This provides a theoretical basis for the diagnosis and prevention of paratuberculosis in sheep. On this basis, it is proposed that the government needs to formulate effective policies for the prevention and control of paratuberculosis in sheep. Farms need to strengthen feeding management and form a scientific and effective prevention and control system, which provides theoretical support for the sustainable and healthy development of animal husbandry in China.

Abstract:In order to effectively detect and purify the brucellosis population of dairy goats and accelerate the healthy and steady development of the dairy goat industry, this paper used the dual detection method of brucellosis antigen and antibody to detect and analyze a dairy goat farm in Shaanxi. The results showed that when sheep were introduced into a dairy goat farm, 36 of the 228 sheep in the whole flock were infected by single antibody detection, and the infection rate reached 15.79%. disinfect. Three months later, a wholegroup test was carried out on the remaining 192 sheep, and 18 positive sheep were detected. After the same purification method as last time, the antigen and antibody double detection method was used for the remaining 174 sheep 3 months later. Eight sheep were detected by the brucellosis antibody detection card, and 8 sheep were detected by the brucellosis antigen detection card. 10 sheep, and the numbers of the sheep detected by the brucellosis antibody test card and the brucellosis antigen test card are completely different. Three months later, the remaining 156 sheep were tested by the same method, and only one positive sheep was detected. After 6 months, the remaining 155 sheep were tested by the same method, and no brucellosispositive sheep were found. The use of antigen and antibody double detection continued to detect positive sheep at 3 months and 6 months. The conclusion of this experiment is that compared with the brucellosis detection method with a single antibody, the detection method using both antigen and antibody has a significantly lower positive rate of brucellosis, and can achieve the expected purification effect in a short period of time. This shows that the use of double antibodies is more effective in the detection of sheep brucellosis, and it has more significance for popularization.

Abstract:As one of the most common zoonotic diseases in the world, brucellosis is a kind of infectiousallergic zoonosis caused by Brucella bacteria, which seriously harms the development of animal husbandry and human health . As the eradication of brucellosis is an expensive, timeconsuming and laborintensive project, these strategies and measures are difficult to implement effectively in countries with limited resources. At present, only a few developed countries have achieved the elimination of animal brucellosis, the infection and control of brucellosis is still a serious problem in developing countries . This paper analyzes and summarizes the physiological characteristics of brucellosis, the epidemic situation in Shaanxi and the harm to livestock, and puts forward the corresponding prevention and control strategies, to further improve the awareness of brucellosis prevention and control, more effective and scientific prevention and control of brucellosis.

Abstract:This study aims to understand the immune status of pig footandmouth disease O (FMDO) vaccine in Yuanjiang County and evaluate the immune effect. From 2018 to 2021, in largescale farms and freerange farmers in 10 townships in the county, we randomly collected pig serum samples, and used ELISA method for immune antibody detection. The results showed that the average qualified rate of FMDO immune antibody in different years was 64.94%. The average qualified rate of FMDO immune antibody in different regions was 64.01%. There was a difference of 1.62 percentage points in the qualified rate of immune antibodies in FMDO farms with different farming methods (66.23%) and freerange farmers (64.61%), and the difference was not significant (P> 0.05). The results showed that in recent years, the overall immune effect of FMDO in pigs in Yuanjiang County was not very satisfactory, and the year, region and breeding method that the immunity did not meet the standard appeared. It deserves great attention. The detection results can provide reference for potential risk point control, vaccine selection and prevention and control of pig FMDO in Yuanjiang County.

Abstract:Brucellosis is a zoonotic infectious disease, which not only endangers animal husbandry production and causes huge economic losses, but also seriously endangers human health. In this paper, the detection of Brucella sheep was first diagnosed by plate agglutination test and confirmed by test tube agglutination test. We collected 16167 sheep sera, 1229 were positive, and the positive rate was as high as 7.6%. This paper proposes comprehensive prevention and control measures to provide help for maintaining public health safety and ensuring people's health.

Abstract:Beishan Township, Menyuan County has started the crossbreeding and improvement of local cattle in 7 administrative villages since 2016, and the work has achieved remarkable results. This has been recognized by farmers. However, some farmers lack sufficient knowledge of cattle physiology. To maximize the breeding benefits by shortening the postpartum recovery period of fertile cows, this leads to the incomplete recovery of postpartum uterine functions and the mating of cows. At the same time, they do not pay attention to environmental hygiene, causing pathogenic microorganisms to invade the uterine wall, causing inflammation of the uterus and secondary suppurative endometritis. This results in delayed or infertile cow conception and economic loss to the farmer. This paper discusses the concept of purulent endometritis, diagnosis of clinical symptoms, etiology analysis and treatment for reference.

Abstract:Porcine pneumonia is an acute, febrile infectious disease of pigs caused by Pasteurella multocida, also called Pasteurellosis or hemorrhagic septicemia. This is often characterized by acute sepsis and hemorrhagic inflammation of tissues and organs. Pigs of all ages can occur, which is more harmful to the pig industry. This paper expounds the diagnosis and prevention process of Tibetan swine pneumonia in a Tibetan pig farm, and provides a reference for the prevention and control of the disease.

Abstract:In veterinary clinics and animal husbandry practices, cases of allergic reactions in cattle caused by inadvertent use of drugs often occur. In such cases, the etiology is known, diagnosis can usually be made quickly and treatment can be initiated promptly. However, cases of allergic reactions to corn stalks eaten by cattle are rare. Corn stover has the advantages of high carbohydrate content, relatively high moisture content, good palatability and high yield. This is one of the important crops that have been popularized in recent years. Cases of cattle allergic to corn stover are rare. When looking for pathogens, veterinary workers often don't consider corn stalks, and cannot make accurate clinical diagnosis and rescue in time. In the process of diagnosis and treatment, the author encountered a case of allergic reaction caused by cattle eating fresh and tender corn stalks. We applied antiallergic drugs for symptomatic treatment according to the diagnosis results, and received good results on the same day, indicating that the diagnosis was accurate. Through the diagnosis and treatment report of this case, this paper hopes to help veterinary practitioners in the diagnosis and treatment of this kind of disease.

Abstract:This paper analyzes and discusses the etiology and pathogenesis of postpartum diseases of female livestock, and uses the four diagnostic methods of "look, smell, ask, and feel" in traditional Chinese veterinary medicine and dialectical treatment, and the overall concept as theoretical guidance. Our basic treatment principles are tonifying deficiency and dispelling blood stasis for postpartum diseases of female animals. Clinical treatment with Chinese herbal medicine as the main means. Prescription medication can be flexibly added or subtracted according to the symptoms, with definite curative effect, no side effects, safe, reliable, and economical. This verifies the practicability and reliability of traditional Chinese veterinary medicine in treating postpartum diseases of female animals.

Abstract:This question introduces the resection of giant vaginal tumor in pet dogs and the followup treatment process. Because the tumor is too large, it is not suitable for surgical resection of the vulva. In the absence of minimally invasive surgery, ventral and dorsal incisions were made to avoid large blood vessels, nerves, rectum, urethra, etc., and the vagina was exposed. The vagina was pulled out of the body with ring forceps, the vagina was incised, and ring tumor resection was performed. The dog is currently in good condition. This article aims to provide a reference for the clinical treatment of this disease.