A "grazing-supplement feeding" optimized breeding method of breeding ewes considering grassland ecology and production function

By optimizing grazing time and nutritional supplementation, the problem of balancing energy intake and energy consumption during grazing management of ewes was solved, thereby achieving grassland ecological protection and improving the productivity of ewes.

CN122397682APending Publication Date: 2026-07-17NORTHEAST NORMAL UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEAST NORMAL UNIVERSITY
Filing Date
2026-06-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing grazing management techniques cannot identify the trade-off between energy intake and energy expenditure during grazing in ewes, leading to excessive trampling of grasslands and low productivity in ewes. Supplementation programs lack dynamic coupling, making it difficult to achieve nutritional balance.

Method used

By calculating the optimal grazing time and precise nutritional supplementation amount for ewes, and combining the ewes' physiological stages and pasture availability, the grazing-supplementation program is optimized to determine the ewes' metabolizable energy and crude protein requirements, thus achieving a precise match between grazing time and nutritional supplementation amount.

Benefits of technology

This achieves a win-win situation for grassland ecological protection and efficient ewe production, reduces grassland grazing pressure, and improves ewe production efficiency and the precision of nutrient supply.

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Abstract

本发明公开了一种兼顾草地生态与生产功能的繁殖母羊“放牧‑补饲”优化养殖方法,具体包括:基于母羊体重和当月牧草条件,确定母羊的最优放牧时长;基于最优放牧时下母羊的总代谢能摄入量,确定母羊各生理时期代谢能补饲量;基于最优放牧时母羊的总蛋白摄入量,确定母羊各生理时期蛋白补饲量。本发明通过综合考虑母羊能量采食和游走耗能间的权衡对放牧时长进行优化,同时进一步考虑母羊不同月份、不同生理时期营养盈缺状态的动态特征,对母羊的能量和蛋白补饲量进行优化。本发明能够为精准确定放牧时长和营养补饲量提供科学依据,对于实现草地生态保护和家畜高效生产双赢具有重要意义。
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