动物营养学报 >

2016 , Vol. 28 >Issue 3: 788 - 796

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.03.019

饲料营养 Feed Science and Technology

巨大芽孢杆菌对1~70日龄扬州鹅生长性能、屠宰性能、脏器指数及血清生化指标的影响

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  • 扬州大学动物科学与技术学院, 扬州 225009
蔡中梅(1989-),女,江苏盐城人,硕士研究生,从事家禽生产研究。E-mail:1020108673@qq.com

收稿日期: 2015-09-28

  网络出版日期: 2016-03-14

基金资助

公益性行业(农业)科研专项经费项目(201303144);扬州市科技支撑计划项目(YZ 2014143);扬州大学"新世纪人才工程"资助

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Effects of Bacillus Megaterium on Growth Performance, Slaughter Performance, Viscera Indices and Serum Biochemical Parameters of Geese from 1 to 70 Days of Age

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  • College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2015-09-28

  Online published: 2016-03-14

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摘要

本文旨在研究巨大芽孢杆菌对1~70日龄扬州鹅生长性能、屠宰性能、脏器指数及血清生化指标的影响。选择260只1日龄健康、体重相近的扬州鹅公鹅,随机分成4组,每组5个重复,每个重复13只。对照组(Ⅰ组)饲喂基础饲粮,试验组(Ⅱ、Ⅲ、Ⅳ组)分别饲喂添加20、40、60 mg/kg巨大芽孢杆菌的试验饲粮。试验期70 d。结果表明:1)Ⅳ组14、56日龄仔鹅体重显著大于对照组(P<0.05),28、42日龄仔鹅体重极显著大于对照组(P<0.01);Ⅳ组1~28日龄仔鹅平均日增重极显著高于对照组(P<0.01),显著高于Ⅱ组(P<0.05),Ⅳ组1~28日龄仔鹅料重比显著低于Ⅱ组(P<0.05),极显著低于Ⅲ组(P<0.01),Ⅲ、Ⅳ组29~70日龄仔鹅平均日采食量显著高于对照组(P<0.05)。2)Ⅳ组全净膛率、半净膛率显著高于对照组(P<0.05),胸肌率、腿肌率、腹脂率各组之间无显著差异(P>0.05)。3)Ⅳ组肌胃指数、空肠指数显著高于对照组(P<0.05)。4)Ⅱ组高密度脂蛋白胆固醇含量显著高于Ⅳ组(P<0.05),低密度脂蛋白胆固醇含量显著低于对照组(P<0.05)。由此可见,添加巨大芽孢杆菌可以改善仔鹅生长性能,对其全净膛率、半净膛率、肠道发育、血清中高密度脂蛋白含量、低密度脂蛋白含量有一定的影响,添加量为60 mg/kg时效果较好。

关键词： 巨大芽孢杆菌; 仔鹅; 生长性能; 屠宰性能; 脏器指数; 血清生化指标

本文引用格式

蔡中梅, 王志跃, 杨海明, 丁文骏, 靳世磊, 张艳云 . 巨大芽孢杆菌对1~70日龄扬州鹅生长性能、屠宰性能、脏器指数及血清生化指标的影响[J]. 动物营养学报, 2016 , 28(3) : 788 -796 . DOI: 10.3969/j.issn.1006-267x.2016.03.019

Abstract

The experiment was conducted to investigate the effects of Bacillus megaterium on growth performance, slaughter performance, visceral indices and serum biochemical parameters of geese from 1 to 70 days of age. Two hundred and sixty 1-day-old healthy male geese with similar body weight were randomly divided into 4 groups with 5 replicates in each group and 13 geese per replicate. The geese in control group (group Ⅰ) were fed a basal diet, and the others in experimental groups (groups Ⅱ, Ⅲ and Ⅳ) were fed basal diet supplemented with 20, 40 and 60 mg/kg Bacillus megaterium, respectively. The experiment lasted for 70 days. The results showed as follows: 1)the body weight of geese at 14, 56 days of age and 28, 42 days of age in group Ⅳ was significantly higher than that in control group (P<0.05 or P<0.01); the average daily gain of geese at 1 to 28 days of age in group Ⅳ was significantly higher than that in control group (P<0.05) and groupⅡ (P<0.01); the ratio of feed to gain in group Ⅳ was significantly lower than that in group Ⅱ (P<0.05) and group Ⅲ (P<0.01); the average daily feed intake of geese at 29 to 70 days of age in groups Ⅲ Ⅳ was significantly higher than that in control group (P<0.05). 2)The eviscerated rate and semi-eviscerated rate in group Ⅳ were significantly higher than those in control group (P<0.05), there were no significant difference in breast muscle rate, leg muscle rate and abdominal fat rate among all experimental groups (P>0.05). 3) The gizzard index and jejunum index in group Ⅳ were significantly higher than those in control group (P<0.05). 4) The serum high density lipoprotein cholesterol content in group Ⅱ was significantly higher than that in group Ⅳ (P<0.05); and the serum low density lipoprotein cholesterol content in group Ⅱ was significantly lower than that in control group (P<0.05). Therefore, the diets adding Bacillus megaterium can stimulate the growth performance of geese. They also have a certain influence on the eviscerated rate, semi-eviscerated rate, intestinal development,serum high density lipoprotein cholesterol content and serum low density lipoprotein cholesterol content, the effects of adding 60 mg/kg Bacillus megaterium in the diets on geese from 1 to 70 days of age are better.

Key words： Bacillus megaterium; geese; growth performance; slaughter performance; viscera indices; serum biochemical parameters

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