机构地区:[1]江西省农业科学院畜牧兽医研究所,南昌330200 [2]甘肃农业大学动物科学技术学院,兰州730070 [3]天津农学院动物科学与动物医学学院,天津300384 [4]赣州绿林湾农牧有限公司,赣州341103
出 处:《动物营养学报》2024年第1期406-415,共10页CHINESE JOURNAL OF ANIMAL NUTRITION
基 金:甘肃省教育厅研究生“创新之星”项目(2023CXZX-627);江西省现代农业产业技术体系建设专项(JXARS-13-肉羊岗位)。
摘 要:本试验旨在研究饲粮中添加大蒜皮对湖羊生长性能、瘤胃发酵参数及血清生化、免疫和抗氧化指标的影响。选择3.5月龄左右、健康且体重[(23.85±0.41)kg]相近的湖羊公羔32只,随机分为2个组,每组16只。对照组(CON组)饲喂基础饲粮,大蒜皮组(GAP组)用3%的大蒜皮替代基础饲粮中全部小麦秸秆。试验期28 d。结果表明:1)与CON组相比,饲粮中添加大蒜皮能极显著提高湖羊试验第1~28天的体重和胸围平均生长速度(P<0.01)。2)与CON组相比,饲粮中添加大蒜皮能够显著提高瘤胃丁酸(BA)比例(P<0.05),显著降低瘤胃异丁酸(IBA)比例(P<0.05),极显著降低瘤胃异戊酸(IVA)比例(P<0.01)。3)与CON组相比,饲粮中添加大蒜皮能够极显著降低血清总胆固醇(TC)含量(P<0.01),显著降低血清甘油三酯(TG)含量(P<0.05),极显著提高血清总蛋白(TP)含量(P<0.01)。4)与CON组相比,饲粮中添加大蒜皮能够显著提高血清免疫球蛋白A(IgA)和免疫球蛋白M(IgM)含量(P<0.05),极显著提高血清免疫球蛋白G(IgG)含量(P<0.01)。5)与CON组相比,饲粮中添加大蒜皮能够极显著降低血清丙二醛(MDA)含量(P<0.01),极显著提高血清总抗氧化能力(T-AOC)及总超氧化物歧化酶(T-SOD)、谷胱甘肽过氧化物酶(GSH-Px)、过氧化氢酶(CAT)活性(P<0.01)。综上所述,饲粮中添加3%的大蒜皮能够改善血清生化指标,增强机体免疫力和抗氧化能力,提高瘤胃丁酸比例,进而改善湖羊的生长性能。This experiment was conducted to investigate the effects of dietary garlic peel on growth performance,rumen fermentation parameters,serum biochemical,immune and antioxidant indices of Hu sheep.Thirty-two healthy male lambs of Hu sheep about 3.5 months of age with similar body weight[(23.85±0.41)kg]were randomly divided into 2 groups with 16 lambs in each group.The control group(CON group)was fed a basal diet,and the garlic peel group(GAP group)was fed the basal diet used 3%garlic peel instead of all wheat straw.The experiment lasted for 28 days.The results showed as follows:1)compared with CON group,dietary garlic peel significantly increased the average growth rates of body weight and chest circumference(P<0.01).2)Compared with CON group,dietary garlic peel dietary garlic peel significantly increased the rumen butyric acid(BA)ratio(P<0.05),significantly decreased the rumen isobutyric acid(IBA)ratio(P<0.05),and significantly decreased the rumen isovaleric acid(IVA)ratio(P<0.01).3)Compared with CON group,dietary garlic peel dietary garlic peel significantly decreased the serum total cholesterol(TC)content(P<0.01),significantly decreased the serum triglyceride(TG)content(P<0.05),and significantly increased the serum total protein(TP)content(P<0.01).4)Compared with CON group,dietary garlic peel dietary garlic peel significantly increased the contents of immunoglobulin A(IgA)and immunoglobulin M(IgM)in serum(P<0.05),and significantly increased the serum immunoglobulin G(IgG)content(P<0.01).5)Compared with CON group,dietary garlic peel dietary garlic peel significantly decreased the serum malondialdehyde(MDA)content(P<0.01),and significantly increased the total antioxidant capacity(T-AOC)and activities of total superoxide dismutase(T-SOD),glutathione-peroxidase(GSH-Px),catalase(CAT)in serum(P<0.01).In conclusion,dietary addition of 3%garlic peel can improve serum biochemical indexes,enhance immunity and antioxidant capacity,increase rumen butyric acid ratio,and then improve the growth performance of Hu sheep.
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