| The main factors of affecting the livestock on reproductive performance, and then affecting the stockfarm on production efficiency are the problems of breeding difficulty. In this research, the reproductiveperformance and breeding difficulty of Xinjiang brown cattle of Xinjiang Yili Xinhe Herd Farm wasinvestigated. The treatment research of the main breeding difficulties by adopting nutrition regulationtechnology to improve the cows’ reproductive performance and hormonal regulation in the period of yardfeeding was carried, also. Results showed that the calving interval of the cattle of Xinjiang Yili Xinhe HerdFarm was431.6±107.2d. It was longer than that of normal (365d) about149.6days. The key problems ofBD in this farm were ovarian disease and uterine inflammation, and the ratio of the BD cattle was30.52%in the total that investigated. So, to raise the energy, rotein, minerals and trace elements levels appropriatelyin the cows dietary can improve the fertility of the cows effectively. In this paper, feasible improvementmeasures were raised aimed at Xinjiang Yili Xinhe Herd Farm. |
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