中国畜牧兽医2024，Vol.51Issue(1)：125-134,10.DOI:10.16431/j.cnki.1671-7236.2024.01.013
多胎萨福克羊与哈萨克羊级进杂交后代生长性能、屠宰性能、肉品质及血液生理生化指标分析
Analysis of Growth Performance,Slaughter Performance,Meat Quality,Blood Physiological and Biochemical Indexes of the Lambs Produced by Grading Crossing Between Multiparous Suffolk Sheep and Kazakh Sheep
摘要
Abstract
[Objective]The purpose of this experiment was to understand the growth performance,slaughter performance and meat quality of the lambs produced by grading crossing between multiparous Suffolk sheep and Kazakh sheep under natural grazing conditions,and evaluate the improvement effect of grading crossing of multiparous Suffolk sheep on Kazakh sheep.[Method]The study was conducted on multiparous Suffolk sheep and its F1 and F2 generations of progressive hybridization with Kazakh sheep,and Kazakh sheep at 3 months old,which had similar physical condition and body shape.They were raised under natural grazing conditions,with a pre-trial period of 10 days and a trial period of 90 days.After the experiment,10 lambs with an average body weight close to the group were selected.Measured the body size indicators before slaughter,and measured the slaughter performance,meat quality,nutritional composition,and blood physiological and biochemical indicators after slaughter.[Result]① The body height,chest depth,live weight before slaughter,carcass weight,slaughter rate,meat to bone ratio,and eye muscle area of multiparous Suffolk sheep and hybrid F1 and F2 lambs were significantly higher than those of Kazakh sheep(P＜0.05).The back fat thickness and tail fat weight of hybrid F1 lambs and Kazakh sheep were significantly higher than those of the multiparous Suffolk sheep and hybrid F2 lambs(P＜0.05).② The water content of the longissimus dorsi muscle in hybrid F1 lambs was significantly higher than that in the multiparous Suffolk sheep,hybrid F2 lambs and Kazakh sheep(P＜0.05).The content of iron,zinc,magnesium,and crude fat in the longissimus dorsi muscle of Kazakh sheep were significantly higher than that of multiparous Suffolk sheep,hybrid F1 and F2 lambs(P＜0.05).③ The white blood cell count,basophil count,neutrophil count,eosinophil count,and lymphocyte count of multiparous Suffolk sheep,hybrid F1 and F2 lambs were significantly higher than those of Kazakh sheep,while the percentage of basophils,percentage of eosinophils,total platelet count,and average platelet volume were significantly lower than those of Kazakh sheep(P＜0.05).④ The alkaline phosphatase activity in the serum of multiparous Suffolk sheep,hybrid F1 and F2 lambs was significantly higher than that of Kazakh sheep,and the total protein content was significantly lower than that of Kazakh sheep(P＜0.05).The serum alanine aminotransferase activity and iron content of hybrid F1 lambs were significantly lower than those of Kazakh sheep(P＜0.05).The serum albumin content of multiparous Suffolk sheep was significantly higher than that of hybrid F1 and F2 lambs,and Kazakh sheep(P＜0.05).[Conclusion]Under natural grazing conditions,the meat production performance of multiparous Suffolk sheep and their progeny of grading crossing was higher than that of Kazakh sheep.With the increase of hybridization generations,the slaughtering performance and meat quality were obviously improved.关键词
多胎萨福克羊/哈萨克羊/级进杂交/屠宰性能/肉品质/生理生化指标Key words
multiparous Suffolk sheep/Kazakh sheep/grading crossing/slaughtering performance/meat quality/physiological and biochemical index分类
农业科技引用本文复制引用
余乾,杨永林,杨华,王苗苗,张宾,张文喆..多胎萨福克羊与哈萨克羊级进杂交后代生长性能、屠宰性能、肉品质及血液生理生化指标分析[J].中国畜牧兽医,2024,51(1):125-134,10.基金项目
国家重点研发计划子课题(2021YFD1300903-2) （2021YFD1300903-2）
兵团农业科技创新工程专项(NCG202211) （NCG202211）
新疆生产建设兵团重大科技项目(2017AA006) （2017AA006）
新疆农垦科学院院级科研项目(2020YJ009) （2020YJ009）
兵团科普发展专项(2023CD004-01-3) （2023CD004-01-3）
