Analysis and Study of Body Size Traits in Thoroughbred Crossbred Improved Ili Horses

Abstract:

This study focuses on Ili horses,thoroughbred,and hybrid offspring of Ili horses and thoroughbred in Zhaosu County,Ili Prefecture.The body height,length,chest circumference,and tube circumference of Ili horses,thoroughbred,and three generations of hybrids were measured,and the difference in body size data was analyzed for significance and the body size index was calculated.The aim is to provide scientific basis and data support for the cultivation and hybrid utilization of light riding Ili horses.The analysis results showed that introducing blood from thoroughbred can significantly improve the body size performance of Ili horses.The body height,length,chest circumference,and tube circumference of the hybrid F₃ generation increased by 9.51,5.84,15.27 and 0.5 cm,respectively,compared to Ili horses(P<0.01);The body height,length,chest circumference,and tube circumference of hybrid F₁ and F₂ generations were significantly higher than those of Ili horses(P<0.01);The chest circumference rate of hybrid F₁,F₂ and F₃ generations was significantly higher than that of Ili horses(P<0.01).In summary,it can be seen that purebred horses have a significant effect on crossbreeding and improving Ili horses as the male parent.The hybrid offspring have better body size development and body structure than Ili horses.Using Ili horses as the female parent has the potential to cultivate a new type of speed type Ili horses.