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 largescale 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 largescale 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.
