摘要
选择东北细毛羊×德国肉用美利奴的杂交一代肉羊12只,分成对照组、试验Ⅰ组和Ⅱ组,每组4只,研究谷胱甘肽对肉羊生长性能、屠宰性能及肉品质的影响。试验期60 d。结果表明:与对照组相比,谷胱甘肽显著提高了肉羊的日增重(P<0.05),试验Ⅰ组、Ⅱ组分别提高了14.6%和11.4%;降低了肉羊的料重比(P<0.05),试验Ⅰ组、Ⅱ组分别降低了11.0%和8.1%。试验Ⅰ组的净肉率和GR值显著高于对照组(P<0.05),Ⅱ组的宰前活重显著高于对照组(P<0.05);试验Ⅰ组肉的剪切力显著低于对照组(P<0.05);试验Ⅰ组、Ⅱ组的滴水损失显著低于对照组(P<0.05),而熟肉率显著高于对照组(P<0.05),且两试验组间差异不显著(P>0.05);各试验组宰后45 min内肉的pH没有显著差异(P>0.05),但试验Ⅰ组24 h的pH极显著地高于其他2组(P<0.01)。
The effects of glutathione on growth performance, carcass traits and meat quality of meat sheep had been studied in this paper. Twelve F1 crossbred of German Mutton Merino Sheep with Northeast Fine-wool Sheep were chosen in the current experiment, and the animals were divided into 3 groups： control, treatmentⅠ and Ⅱ, with 4 replicates in each treatment. Animals were fed for 60 days. The results indicated that： compared with the control, the average daily gain increased in treatmenttand Ⅱ （P 〈0. 05） by 14. 6% and 11.4% , and feed to gain rate decreased by 11.0% and 8. 1%, respectively （ P 〈 0. 05 ） ; there were higher net meat rate and GR value in treatmentⅠ （ P 〈 0. 05） and live body weight in treatmentⅡ （P 〈 0. 05 ） ; and shear stress of treatmentⅠ, drip loss of treatmentⅠand Ⅱdecreased significantly （P 〈 0. 05 ）. There was no significant difference in cooking rate between treatmentIand treatment Ⅱ （P 〉 0. 05 ）, but significant increase in these two treatments compared with control （ P 〈 0. 05 ）. There were no significant differences in meat pH at 45-min post-slaughter among three groups （P 〉0. 05）, but significant increase in meat pH at 24-h poat-slaughter in treatmenttcompared with the control （P 〈0. 01 ）.
出处
《畜牧与兽医》
北大核心
2008年第11期14-17,共4页
Animal Husbandry & Veterinary Medicine
基金
黑龙江省农垦总局“十一五”科技攻关项目(HNKXIV-09-02-05)
黑龙江省研究生创新科研资金项目(YJSCX2008-074HLJ)
关键词
谷胱甘肽
生长性能
屠宰性能
肉品质
肉羊
glutathione
growth performance
carcass trait
meat quality
sheep
