桑叶粉对新西兰白兔免疫与抗氧化功能及肌肉风味的影响  

Effects of Mulberry Leaf Powder on Immune and Antioxidant Functions and Muscle Flavor of New Zealand White Rabbits

作　　者：王曼曼 闫晓荣[1,2] 杨乃苏 陈阳 朱慈根[3] 潘雨来 吴信生 

机构地区：[1]扬州大学动物科学与技术学院,扬州225009 [2]江苏省动物遗传繁育与分子设计重点实验室,扬州225009 [3]江苏省金陵种兔场,江宁210041

出　　处：《动物营养学报》2017年第10期3687-3695,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：现代农业产业技术体系建设专项(CARS-44-1);江苏高校优势学科建设工程(PAPD 2014-134)

摘　　要：本试验旨在研究饲粮中添加不同水平桑叶粉对新西兰白兔免疫与抗氧化功能及肌肉风味的影响。选用120只35日龄断奶的新西兰白兔,随机分为4组,每组3个重复,每个重复10只(公母各占1/2)。4组试验兔分别饲喂桑叶粉添加水平为0(对照组)、15%(试验Ⅰ组)、20%(试验Ⅱ组)、25%(试验Ⅲ组)的试验饲粮,试验期为35 d。结果显示:试验Ⅰ组和试验Ⅱ组血清酸性磷酸酶(ACP)活性和白细胞介素-6(IL-6)含量均显著高于对照组(P<0.05)。随着桑叶粉添加水平的增加,血清溶菌酶(LZM)活性呈上升趋势,且试验Ⅱ组和试验Ⅲ组与对照组差异显著(P<0.05)。试验I组血清过氧化氢酶(CAT)活性极显著高于对照组和试验Ⅲ组(P<0.01)。血清丙二醛(M DA)含量在各试验组间无显著差异(P>0.05),但各试验组均显著低于对照组(P<0.05)。随着桑叶粉添加水平的增加,血清总抗氧化能力(T-AOC)呈现上升趋势,且各试验组均显著高于对照组(P<0.05)。试验Ⅰ组和试验Ⅱ组背最长肌中肌苷酸含量均显著高于对照组(P<0.05)。试验Ⅱ组和试验Ⅲ组腿肌中肌苷酸含量均显著高于对照组(P<0.05)。试验Ⅰ组与试验Ⅱ组背最长肌和腿肌中必需氨基酸、鲜味氨基酸、总氨基酸以及多不饱和脂肪酸含量均高于对照组(P>0.05)。由此得出,桑叶粉在改善新西兰白兔免疫与抗氧化功能及肌肉风味方面有很好的效果,并且以15%~20%添加水平效果较佳。This study was aimed to investigate the effects o f adding different levels o f mulberry leaf powder in the diet on immune and antioxidant function and muscle flavor of New Zealand White rabbits. A total o f 120 weaned New Zealand White rabbits at the age o f 35 days were randomly divided into 4 groups with 3 replicates per group and 10 rabbits （half male and half female） per replicate. Rabbits in the 4 groups were fed experi-mental diets supplemented with 0 （control group） , 15% （trial group I ）,20% （trial group II ） and 25% （ trial group III ） mulberry leaf powder, respectively. The experimental period lasted for 35 days. The results showed that serum acid phosphatase （ACP） activity and serum interleukin-6 （IL -6） content in trial groups I and II were significantly higher than those in control group （P〈0.05）. With the mulberry leaf powder supple-mental level increasing, serum lysozyme （LZM ） activity was increased, and there were significant differences between trial groups II and III and control group （P〈0.05）. Serum catalase （ CAT ） activity in trial group I was significantly higher than that in control group （P〈0.01）. Serum malondialdehyde （MDA ） content in trial groups was significantly lower than that in control group （P〈0.05） , but no significant differences were found among trial groups （P〉0.05）. With the mulberry leaf powder supplemental level increasing, serum total an-tioxidant capacity （T-AOC ） was increased, and it in trial groups was significantly higher than that in control group （P〈0.05）. The inosinic acid （IMP ） content in longissmus dorsi muscle in trial groups I and II was significantly higher than that in control group （P〈0.05） , and the IMP content in leg muscle in trial groups I and III was significantly higher than that in control group （P〈0.05）. The contents o f essential amino acid, de-licious amino acid , total amino aci

关 键 词：桑叶粉 新西兰白兔 肌苷酸 风味 

分 类 号：S816[农业科学—饲料科学]