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作 者:阳巧梅 阳晏 谭德展[1] YANG Qiao-mei;YANG Yan;TAN De-zhan
机构地区:[1]邵阳职业技术学院,湖南邵阳422000 [2]隆回县人民政府花门街道办事处农业综合服务中心,湖南邵阳422200
出 处:《饲料研究》2024年第18期45-48,共4页Feed Research
基 金:邵阳职业技术学院横向科研课题(项目编号:HX20230705)。
摘 要:试验旨在探究不同水平的金银花提取物对武冈铜鹅生长性能、血清免疫指标及抗氧化指标的影响。试验选择体重相近的28日龄武冈铜鹅400只,按照单因素试验设计随机分为4组,每组5个重复,每个重复20只武冈铜鹅。各组武冈铜鹅依次饲喂添加0(对照组)、100(试验1组)、200(试验2组)、400 mg/kg(试验3组)金银花提取物的基础饲粮。预试期1 w,正式试验期6 w。结果显示,与对照组相比,试验2组和试验3组武冈铜鹅的末重和平均日增重显著增加(P<0.05),料重比显著降低(P<0.05)。与对照组相比,试验2组和试验3组武冈铜鹅血清免疫球蛋白G、白细胞介素-10含量显著增加(P<0.05),白细胞介素-6含量显著降低(P<0.05);各试验组武冈铜鹅血清免疫球蛋白M含量均显著增加(P<0.05),肿瘤坏死因子-α含量显著降低(P<0.05)。与对照组相比,试验2组和试验3组武冈铜鹅血清丙二醛含量显著降低(P<0.05),总超氧化物歧化酶和谷胱甘肽过氧化物酶活性显著增加(P<0.05)。研究表明,武冈铜鹅饲喂金银花提取物可以改善生长性能,增强免疫力和抗氧化性能,金银花提取物的适宜添加量为200~400 mg/kg。The study aimed to explore the effects of varying levels of honeysuckle extract on the growth performance,serum immune indicators,and antioxidant indices of Wugang copper geese.A total of 400 Wugang copper geese with similar body weights and aged 28 days were selected and randomly divided into four groups according to a single-factor experimental design,with five replicates in each group and 20 geese in each replicate.The Wugang copper geese in each group were fed a basal diet supplemented with 0,100,200,400 mg/kg honeysuckle extract.The pre-feeding period was one week and the formal experiment period was six weeks.The results showed that compared to the control group,the final weight and average daily weight gain of Wugang copper geese in experimental groups 2 and 3 were significantly increased(P<0.05),while the feed to gain ratio were significantly decreased(P<0.05).Compared to the control group,the serum levels of immunoglobulin G and interleukin-10 in geese from experimental groups 2 and 3 were significantly increased(P<0.05),and the level of interleukin-6 decreased(P<0.05).The serum immunoglobulin M levels in all experimental groups were significantly increased(P<0.05),and the levels of tumor necrosis factor-α were significantly decreased(P<0.05).Compared to the control group,the malondialdehyde content in experimental groups 2 and 3 were significantly decreased(P<0.05),and the activities of total superoxide dismutase and glutathione peroxidase were significantly increased(P<0.05).The study indicates that feeding with honeysuckle extract can improve growth performance,enhance immune function,and increase antioxidant capacity of Wugang copper geese,with an optimal addition level is 200~400 mg/kg.
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