摘要
试验旨在研究饲粮添加不同水平枯草芽孢杆菌和植物精油复合制剂(BS-EO)对雪峰乌骨鸡产蛋性能、蛋品质、血清生化指标和粪便菌群的影响。试验选取健康的雪峰乌骨鸡768只,随机分为4组,每组6个重复,每个重复32只鸡。对照组(A组)饲喂基础饲粮,试验组(B组、C组和D组)分别在基础饲粮中添加300、600、900 mg/kg BS-EO。预试期7 d,正试期56 d。结果表明:1)在5~8周,与对照组相比,D组产蛋率显著增加(P<0.05),料蛋比显著降低(P<0.05)。2)与对照组相比,B组和D组蛋黄指数显著增加(P<0.05)。3)与对照组相比,B组和D组血清碱性磷酸酶活性显著增加(P<0.05),D组血清甘油三酯含量显著降低(P<0.05),C组血清磷含量显著降低(P<0.05)。4)与对照组相比,第4周末C组和D组粪便乳酸杆菌数量显著降低(P<0.05),第4周末和第8周末C组和D组枯草芽孢杆菌数量均显著增加(P<0.05)。由此可见,饲粮添加900 mg/kg BS-EO可提高血清碱性磷酸酶活性,降低血清甘油三酯含量,增加肠道枯草芽孢杆菌数量,从而改善雪峰乌骨鸡产蛋性能,提高蛋黄指数。
This experiment was conducted to investigate the effects of dietary different levels of Bacillus Subtilis and plant essential oil compounds(BS-EO)supplementation on laying performance,egg quality,serum biochemical indexes and fecal flora of Xuefeng black-bone chickens.A total of 768 Xuefeng black-bone chickens were randomly assigned into 4 groups with 6 replicates per group and 32 hens per replicate.The control group(group A)was fed a basal diet,and the experimental groups(group B,group C and group D)were fed basal diets supplemented with 300,600 and 900 mg/kg BS-EO,respectively.The preparation period was 7 days and the formal experiment period was 56 days.The results showed as follows:1)during 5 to 8 weeks,compared with the control group,the laying rate of group D was significantly increased(P<0.05),and the ratio of feed to egg was significantly decreased(P<0.05).2)Compared with the control group,the egg yolk index of group B and group D was significantly increased(P<0.05).3)Compared with the control group,the serum alkaline phosphatase activity of group B and group D was significantly increased(P<0.05),the serum triglyceride content of group D was significantly decreased(P<0.05),and the serum phosphorus content of group C was significantly decreased(P<0.05).4)Compared with the control group,the fecal Lactobacillus number of group C and group D at the 4th weekend was significantly decreased(P<0.05),and the fecal Bacillus subtilis number of group C and group D at the 4th weekend and the 8th weekend was significantly increased(P<0.05).In conclusion,dietary supplemented with 900 mg/kg BS-EO can increase the serum alkaline phosphatase activity,reduce the serum triglyceride content,and increase intestinal Bacillus subtilis number,thus improved the laying performance and egg yolk index of Xuefeng black bone chickens.
作者
邓雨英
刘伟
姚亚玲
肖冰
柳序
贺长青
郭松长
曲湘勇
DENG Yuying;LIU Wei;YAO Yaling;XIAO Bing;LIU Xu;HE Changqing;GUO Songchang;QU Xiangyong(College of Animal Science and Technology,Hunan Agricultural University,Changsha 410128,China;Animal Husbandry and Aquatic Products Bureau of Huaihua City,Huaihua 418200,China;Hunan Hongjiang Yunfeifeng Agriculture Co.,Ltd.,Huaihua 418200,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2022年第1期321-328,共8页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
湖南农业大学国家新农村发展研究院特色产业基地建设项目(J20101)。
关键词
枯草芽孢杆菌
植物精油
产蛋性能
蛋品质
血清生化
粪便菌群
Bacillus Subtilis
plant essential oil
laying performance
egg quality
serum biochemical
fecal flora
