饲粮中添加机采棉渣对肉兔生长性能、屠宰性能、肉品质和血清生化指标的影响  

Effects of Dietary Machine-Harvested Cotton Residue on Growth Performance,Slaughter Performance,Meat Quality and Serum Biochemical Indices of Meat Rabbits

作　　者：路顺萍 吴启辉 赵明鑫 万婕 王娇 陈雪文 张苏江[1] LU Shunping;WU Qihui;ZHAO Mingxin;WAN Jie;WANG Jiao;CHEN Xuewen;ZHANG Sujiang(Key Laboratory of Animal Husbandry Science and Technology,Xinjiang Construction Corps,Key Laboratory of Livestock and Grass Resources Utilization around Tarim,Ministry of Agriculture and Rural Affairs(Co-Construction by Ministries and Provinces),College of Animal Science and Technology,Tarim University,Alar 843300,China;College of Life Science and Technology,Tarim University,Alar 843300,China)

机构地区：[1]塔里木大学动物科学与技术学院,农业农村部环塔里木畜草资源利用重点实验室(部省共建),新疆生产建设兵团塔里木畜牧科技重点实验室,阿拉尔843300 [2]塔里木大学生命科学与技术学院,阿拉尔843300

出　　处：《动物营养学报》2025年第4期2627-2637,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：塔里木大学校长基金自然科学项目(TDZKCX202307);塔里木大学研究生科研创新项目(TDGRI202235)。

摘　　要：本试验旨在研究饲粮中添加不同水平机采棉渣对肉兔生长性能、屠宰性能、器官指数、肉品质和血清生化指标的影响。选择120只体重相近的健康35日龄断奶伊拉肉兔,随机分为4组,分别饲喂在基础饲粮中添加0(对照组)、10%、20%和30%机采棉渣的饲粮,每组5个重复,每个重复6只(公母各占1/2)。预试期7 d,正试期60 d。结果表明:1)饲粮中添加机采棉渣对肉兔平均日采食量、腹泻率和死亡率均无显著影响(P>0.05)。与对照组相比,10%机采棉渣添加组终末体重和显著提高(P<0.05),料重比显著降低(P<0.05)。2)10%机采棉渣添加组肉兔宰前活重和全净膛率显著高于20%和30%机采棉渣添加组(P<0.05),半净膛重和全净膛重显著高于对照组和30%机采棉渣添加组(P<0.05),半净膛率显著高于其他各组(P<0.05)。3)饲粮中添加机采棉渣对肉兔心脏指数、肾脏指数、脾脏指数和胸腺指数均无显著影响(P>0.05)。30%机采棉渣添加组肝脏指数显著高于对照组以及10%和20%机采棉渣添加组(P<0.05),10%和20%机采棉渣添加组肝脏指数与对照组相比无显著差异(P>0.05)。4)饲粮中添加机采棉渣对肉兔背最长肌pH、肉色、滴水损失和剪切力均无显著影响(P>0.05)。10%机采棉渣添加组背最长肌蒸煮损失显著低于对照组和30%机采棉渣添加组(P<0.05)。5)30%机采棉渣添加组肉兔血清尿素氮含量显著高于对照组和10%机采棉渣添加组(P<0.05),且对照组与10%机采棉渣添加组之间差异不显著(P>0.05);20%和30%机采棉渣添加组血清谷丙转氨酶和谷草转氨酶活性显著高于对照组(P<0.05)。综上所述,饲粮中添加适宜水平机采棉渣可提高肉兔生长性能,改善屠宰性能和肉品质,对器官指数和血清生化指标无负面影响,以添加10%为宜。This experiment was conducted to investigate the effects of different dietary levels of machine-harvested cotton residue on growth performance,slaughter performance,organ indices,meat quality and serum biochemical indices of meat rabbits.A total of 120 healthy 35-day-old weaned Ila meat rabbits with similar body weight were randomly divided into 4 groups,which were fed a basal diet supplemented with 0(control group),10%,20%and 30%machine-harvested cotton residue,respectively,with 5 replicates in each group and 6 rabbits(half male and half female)in each replicate.The pre-trial period lasted for 7 days and the experimental period lasted for 60 days.The results showed as follows:1)dietary machine-harvested cotton residue had no significant effects on the average daily feed intake,diarrhea rate and mortality of meat rabbits(P>0.05).Compared with the control group,the final body weight and feed to gain ratio in 10%machine-harvested cotton residue supplemental group were significantly increased(P<0.05),and the ratio of feed to gain was significantly decreased(P<0.05).2)The live weight before slaughter and full eviscerated ratio of meat rabbits in 10%machine-harvested cotton residue supplemental group were significantly higher than those in 20%and 30%machine-harvested cotton residue supplemental group groups(P<0.05),the half carcass weight and full carcass weight were significantly higher than those in the control group and 30%machine-harvested cotton residue supplemental group(P<0.05),and the half eviscerated ratio was significantly higher than that in the other groups(P<0.05).3)Dietary machine-harvested cotton residue had no significant effects on the heart index,kidney index,spleen index and thymus index of meat rabbits(P>0.05).The liver index in 30%machine-harvested cotton residue supplemental group was significantly higher than that in the control group and 10%and 20%machine-harvested cotton residue supplemental groups(P<0.05),and there was no significant difference in liver index in 10%and 20%machine-harvested co

关 键 词：机采棉渣 肉兔 生长性能 屠宰性能 肉品质 血清生化指标 

分 类 号：S816[农业科学—饲料科学]