Animal Husbandry and Feed Science ›› 2022, Vol. 43 ›› Issue (3): 42-45.doi: 10.12160/j.issn.1672-5190.2022.03.007

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Nutrient Level on Reproductive Performance of Ewes and Research Progress on Precision Nutrition Regulation

LIU Zhi-you   

  1. Chifeng Institute of Agricultural and Animal Husbandry Sciences,Chifeng 024031,China
  • Received:2021-12-17 Published:2022-05-24

Abstract: Reproductive performance is a significant economic trait of the sheep industry, as it directly determines to the cost and benefit of production. Low reproductive efficiency of sheep due to their seasonal reproductive characteristics is the fundamental barrier of high-efficient breeding in the sheep industry. The nutrient level of ewes has a direct impact on their reproductive performance in sheep farming. This paper summarizes the effects of nutrient level on the reproductive process of ewes, including estrus, ovulation, and pregnancy, as well as on the reproductive performance of ewes during non-reproductive seasons. Furthermore, the research progress on reproductive performance regulation of ewes by precision nutrition approach is reviewed, in hoping to provide a reference for further study on the mechanisms underlying the regulatory role of nutrient level in reproductive performance of ewes.

Key words: nutrient level, ewes, reproductive performance, precision nutrition

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