棉子糖对肉兔生长性能、屠宰性能、肠道形态以及血清生化和免疫指标的影响  

tering Performance,Intestinal Morphology, Serum Biochemical and ImmuneIndexes of Meat Rabbits

作　　者：杨凯[1] 杨硕[1] 周诗轩 王坤 李振新 纪美楠 李方方 YANG Kai;YANG Shuo;ZHOU Shixuan;WANG Kun;LI Zhenxin;JI Meinan;LI Fangfang(College of Animal Science and Veterinary Medicine,Shenyang Agricultural University,Shenyang 110866,China)

机构地区：[1]沈阳农业大学动物科学与医学学院,沈阳110866

出　　处：《动物营养学报》2024年第1期507-513,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：现代农业产业技术体系建设专项-兔(CARS-43-B-4)。

摘　　要：本试验旨在研究饲粮中添加不同剂量的棉子糖对肉兔生长性能、屠宰性能、肠道形态以及血清生化和免疫指标的影响。选用120只35日龄、平均体重(1.03±0.05)kg的商品伊拉兔,随机分为4组,每组30只(公母各占1/2),每只为1个重复。对照组饲喂基础饲粮,试验组在基础饲粮基础上分别添加0.05%、0.10%和0.20%的棉子糖,预试期5 d,正试期42 d。结果显示:1)与对照组相比,饲粮中添加0.05%的棉子糖显著增加了肉兔的末重以及试验后期(22~42 d)与全期(1~42 d)的平均日采食量和平均日增重(P<0.05)。2)0.05%棉子糖组肉兔的半净膛重与全净膛重较对照组显著提高(P<0.05)。3)0.05%棉子糖组肉兔十二指肠、空肠以及回肠的绒毛高度/隐窝深度比值较对照组显著提高(P<0.05)。4)与对照组相比,饲粮中添加0.05%或0.10%的棉子糖显著提高了肉兔血清中免疫球蛋白A与免疫球蛋白M的含量(P<0.05)。综上所述,饲粮中添加0.05%的棉子糖可促进肠道发育,改善血清免疫指标,进而提高肉兔的生长性能和屠宰性能。This experiment was conducted to investigate the effects of different supplemental levels of raffinose in the diet on the growth performance,slaughtering performance,intestinal morphology,serum biochemical and immune indexes of meat rabbits.One hundred and twenty 35 days-old commercial Ira rabbits with an average body weight of(1.03±0.05)kg were randomly divided into 4 groups of 30 rabbits(half male and half female),and each rabbit served as a replicate.The rabbits in the control group were fed a basal diet,and the others in the experimental groups were fed basal diets supplemented with 0.05%,0.10%and 0.20%raffinose,respectively.The pre-feeding period was 5 days and the trial period was 42 days.The results showed as follows:1)compared with the control group,the supplementation of 0.05%raffinose in the diet significantly increased the final body weight,and the average daily feed intake and average daily gain during the later period(22 to 42 d)and the whole period(1 to 42 d)of trial(P<0.05).2)The half carcass weight and all carcass weight of rabbits in the 0.05%raffinose group were significantly increased compared with the control group(P<0.05).3)The villus height to villus crypt ratio of duodenum,jejunum and ileum of rabbits in the 0.05%raffinose group was significantly increased compared with the control group(P<0.05).4)Compared with the control group,diet supplemented with 0.05%or 0.10%raffinose significantly increased the contents of immunoglobulin A and immunoglobulin M in serum of rabbits(P<0.05).In summary,the supplementation of 0.05%raffinose in the diet can improve the intestinal development and serum immune indexes,and then increase the growth performance and slaughtering performance of meat rabbits.

关 键 词：棉子糖 肉兔 生长性能 屠宰性能 血清生化指标 血清免疫指标 

分 类 号：S829.1[农业科学—畜牧学]