畜牧兽医杂志2025，Vol.44Issue(3)：44-47,4.DOI:10.7606/j.issn.1004-6704.2025.03.008
TMR日粮营养调控技术对杂交母羊繁殖性能的影响
Impact of TMR Dietary Nutritional Regulation Technology on the Reproductive Performance of Hybrid Ewes
摘要
Abstract
The low reproductive rates and suboptimal breeding efficiency of meat-type sheep have become critical bottlenecks constraining the development of the mutton sheep industry.Ewe productivity is influenced by multiple factors,including genetic traits,management practices,and feed nutrition,among which precise nutritional regulation is particularly vital for enhancing re-productive efficiency.Leveraging the advantages of TMR(Total Mixed Ration)technology,this study conducted trials on phased precision feeding for crossbred ewes and early supplementary feeding for lambs at two large-scale sheep farms in Linxia county,Gansu province.The results showed that:compared to the control group,the experimental groups showed increases in estrus rate by 10.98％—19.51％(group Ⅱ:98％,P＜0.01),conception rate by 11.43％—15.71％(group Ⅱ:92.86％,P＜0.01),and lambing rate by 33.63％—62.18％(group Ⅱ:217％),with group Ⅱ exhibiting optimal comprehensive reproductive in-dicators.Lamb growth performance:After 50 days of contin-uous supplementary feeding(10～60 days of age),the daily weight gain of groups Ⅰ and Ⅲ reached 0.25-0.26 kg/d,representing a 43％—49％improvement over the control group(0.175 kg/d),and their 60-day weights(18.13,18.05 kg)were significantly higher than the control group(13.99 kg,P＜0.05).The trials confirmed that precise nutritional regulation using TMR technology across key reproductive stages(non-pregnancy,breeding,and gestation periods),com-bined with early supplementary feeding strategies for lambs(initiated at 10 days of age),significantly improved ewe re-productive efficiency(average lambing rate increased by 45.11％)and enhanced lamb growth performance.Howev-er,the relatively slower weight gain in group Ⅱ during later stages suggests the need to optimize energy substance ratios in supplementary feeding formulas and individual adaptability regulation.This study provides a replicable nutritional man-agement protocol for intensive mutton sheep farming,offer-ing significant practical value for improving breeding eco-nomic efficiency.关键词
TMR日粮/营养调控/繁殖/补饲Key words
TMR diet/nutrition regulation/reproduc-tion/supplementary feeding分类
畜牧业引用本文复制引用
穆占中,王华,李慧贤,鲁录,孙旭春..TMR日粮营养调控技术对杂交母羊繁殖性能的影响[J].畜牧兽医杂志,2025,44(3):44-47,4.基金项目
甘肃省科技计划资助项目(25CXNN011) （25CXNN011）
甘肃省科技计划资助项目(23CXNN0007) （23CXNN0007）
临夏州科技计划资助项目(2024-N-3-2) （2024-N-3-2）
