摘要
本试验旨在研究西兰花尾菜发酵饲料对绵羊生长性能、营养物质表观消化率及血清生化、抗氧化和免疫指标的影响。选取54只体重接近、体况良好的5月龄欧拉绵羊公羊,随机分为3组,每组3个重复,每个重复6只。对照组、试验Ⅰ组和试验Ⅱ组分别饲喂添加0、10%和20%西兰花尾菜发酵饲料的试验饲粮。试验共78 d,其中预试期14 d,正试期64 d。结果表明:1)试验Ⅰ组和试验Ⅱ组的第33~64天及第1~64天的平均日增重(ADG)显著高于对照组(P<0.05),且料重比(F/G)显著低于对照组(P<0.05)。2)试验Ⅰ组和试验Ⅱ组的粗蛋白质(CP)表观消化率显著高于对照组(P<0.05),试验Ⅰ组的粗脂肪(EE)表观消化率显著高于对照组(P<0.05)。3)试验Ⅱ组的血清乳酸脱氢酶(LDH)活性显著低于对照组(P<0.05),试验Ⅰ组和试验Ⅱ组的血清肌酸激酶(CK)活性显著低于对照组(P<0.05)。4)试验Ⅰ组和试验Ⅱ组的血清总超氧化物歧化酶(T-SOD)活性及免疫球蛋白A(IgA)、免疫球蛋白M(IgM)和免疫球蛋白G(IgG)含量均显著高于对照组(P<0.05)。综上所述,饲粮中添加西兰花尾菜发酵饲料可提高绵羊的生长性能、CP表观消化率以及抗氧化性能和免疫功能。
This experiment was conducted to investigate the effects of broccoli residue fermented feed on growth performance,nutrient apparent digestibility and serum biochemical,antioxidant and immune indexes of sheep.Fifty-four 5-month-old Oula male sheep with similar body weight and good body condition were selected and randomly divided into 3 groups with 3 replicates per group and 6 lambs per replicate.Sheep in control group,trial groupⅠand trial groupⅡwere fed experimental diets supplemented with 0,10%and 20%broccoli residue fermented feed,respectively.The experiment lasted for 78 days,including 14 days pre-experiment period and 64 days formal experiment period.The results showed as follows:1)the average daily gain(ADG)during days 33 to 64 and days 1 to 64 of trial groupⅠand trial groupⅡwas significantly higher than that of the control group(P<0.05),and the feed to gain ratio was significantly lower than that of the control group(P<0.05).2)The crude protein(CP)apparent digestibility of trial groupⅠand trial groupⅡwas significantly higher than that of the control group(P<0.05),and the ether extract(EE)apparent digestibility of trial groupⅠwas significantly higher than that of the control group(P<0.05).3)The serum lactate dehydrogenase(LDH)activity of trial groupⅠwas significantly lower than that of the control group(P<0.05),and the serum creatine kinase(CK)activity of trial groupⅠand trial groupⅡwas significantly higher than that of the control group(P<0.05).4)The serum total superoxide dismutase(T-SOD)activity and immunoglobulin A(IgA),immunoglobulin M(IgM)and immunoglobulin G(IgG)contents of trial groupⅠand trial groupⅡwere significantly higher than those of the control group(P<0.05).In summary,adding broccoli residue fermented feed to the diet can improve the growth performance,CP apparent digestibility,antioxidant capacity and immune function of sheep.
作者
周瑞
李耀东
罗建芬
张小明
吴慧昊
朱凯
吴凡
徐红伟
臧荣鑫
ZHOU Rui;LI Yaodong;LUO Jianfen;ZHANG Xiaoming;WU Huihao;ZHU Kai;WU Fan;XU Hongwei;ZANG Rongxin(College of Life Science and Engineering,Northwest Minzu University,Lanzhou 730100,China;Gansu Dabeinong Agriculture and Animal Husbandry Technology Co.,Ltd.,Lanzhou 730000,China;Experimental Teaching Department,Northwest Minzu University,Lanzhou 730100,China;College of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430000,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2023年第10期6497-6506,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
中央高校基本科研业务费项目(31920210004)
甘肃省科技计划项目(21JR1RA213)
西北民族大学人才引进项目(xbmuyjrc2020018)。
关键词
西兰花尾菜
发酵饲料
绵羊
生长性能
表观消化率
抗氧化
免疫
broccoli residue
fermented feed
sheep
growth performance
nutrient digestibility
antioxidant
immune