摘要
旨在探讨酵母硒对肉鸡生长性能、屠宰性能、肉品质和抗氧化性能的影响。选取150只1日龄白羽公肉鸡,随机分成5组,每组6个重复,每个重复5只,对照组以玉米-豆粕为基础饲料,各试验组Ⅰ、Ⅱ、Ⅲ、Ⅳ分别添加0.1、0.2、0.3和0.4 mg/kg的酵母硒,预试期7 d,正式试验期42 d。结果显示:添加酵母硒的各试验组对生长性能和屠宰性能均无显著影响(P>0.05)。在肉品质方面,试验Ⅲ组和试验Ⅳ组的红度(a^(*))值和宰后45 min的pH值均显著高于对照组(P<0.05);试验Ⅱ组、试验Ⅲ组、试验Ⅳ组宰后24 h的pH值与对照组相比有显著提高(P<0.05)。在抗氧化性能方面,试验Ⅳ组的超氧化物歧化酶(SOD)活性极显著高于其他各组(P<0.01),试验Ⅱ组和试验Ⅲ组的过氧化氢酶(CAT)活性显著高于对照组(P<0.05),试验Ⅲ组谷胱甘肽过氧化物酶(GSH-Px)活性极显著高于其他各组(P<0.01)。提示:肉鸡日粮添加酵母硒的最适宜添加量为0.3 mg/kg。
The experiment was to investigate the effects of yeast selenium on the growth performance,carcass traits,meat quality,and an⁃tioxidant capacity of broilers.A total of 1501-day-old white feather male broilers were selected and randomly divided into 5 groups with 6 replicates per group and 5 chickens per replicate.The control group was fed with corn-soybean meal based diet,and each experimental group was fed with the same diet supplemented with 0.1,0.2,0.3 and 0.4 mg/kg of yeast selenium,respectively.The preliminary experiment las⁃ted for 7 days,and the formal experimental period was 42 days.The results showed that yeast selenium in each experimental group had no significant effect on growth performance and carcass traits(P>0.05).In terms of meat quality,the pH value at 45 minutes after slaughter and the a^(*) value in GroupsⅢandⅣwere both significantly higher than the those of the control group(P<0.05).There was a significant increase in the pH value of GroupsⅡ,ⅢandⅣat 24 hours after slaughter,compared with that of the control group(P<0.05).In terms of antioxidant properties,the SOD values of GroupⅣwere significantly higher than those of the other groups(P<0.01).The CAT activities of GroupsⅡandⅢwere significantly higher than those of the control group(P<0.05).There was a significant difference(P<0.01)in GSHPx between GroupⅢand the other groups in the experiment.Above all,the optimum amount of yeast selenium added to the broilers'diet was 0.3 mg/kg.
作者
李欣
李文超
付玉洁
张莹
杨婧怡
张莹莹
王新平
LI Xin;LI Wenchao;FU Yujie;ZHANG Ying;YANG Jingyi;ZHANG Yingying;WANG Xinping(College of Life Engineering,Shenyang Institute of Technology,Fushun 113122,China;College of Veterinary Medicine,Jilin University,Changchun 130062,China)
出处
《畜牧与兽医》
CAS
北大核心
2024年第8期26-31,共6页
Animal Husbandry & Veterinary Medicine
基金
2022年辽宁省教育厅基本科研项目(面上项目)(JYT2022MSL08)
2021年辽宁省教育厅基本科研项目(面上项目)(LJKZ1339)。
关键词
酵母硒
肉鸡
生长性能
屠宰性能
肉品质
抗氧化性能
yeast selenium
broiler
growth performance
carcass traits
meat quality
antioxidant performance
