动物营养学报2012，Vol.24Issue(5)：886-896,11.DOI:10.3969/j.issn.1006-267x.2012.05.013
不同环境下包被酸化剂对肉仔鸡生长性能、消化道内环境及血清生化指标的影响
Effects of Coated Acidifier on Growth Performance, Gastrointestinal Environments and Serum Biochemical Indices of Broilers in Different Environments
摘要
Abstract
This experiment was conducted to study the effects of dietary coated acidifier (CA) based on corn-soybean meal on growth performance, gastrointestinal environments and serum biochemical indices of broilers in different environments. A total of 960 18-day-old healthy Cobb 500 broilers were used in a 2 ? completely randomized design, and then air quality of chicken houses was improved by spraying harmful gas adsorbent. Chicken houses with spraying powder defined as a clean environment, and without spraying powder defined as a poor environment. The chicken were randomly assigned to four groups (control group, 0. 10% fumaric acid group, 0. 03% CA group, 0. 05% CA group) in each environment with four replicates in each group and thirty broilers in each replicate. Broilers fed in two different chicken houses, and the trial lasted for 25 days. The results showed as follows; 1) in different environments, the average daily feed intake of 0.03% CA group were significantly higher than that of control group and 0. 10% fumaric acid group (P <0. 01) , and the amount of cecal Lactobacillus of 0. 03% CA group was significantly higher than that of control group and 0. 10% fumaric acid group (P <0. 05) ; the amount of cecal Bifidobaccteria of 0. 05% CA group was significantly higher than that of other groups (P <0. 01) ; there was no effect on gastrointestinal pH (P >0. 05). 2) In the clean environment, the serum total protein content of 0. 03% CA group was significantly lower than that of other groups (P <0. 01) , the amount of cecal Escherichia coli of 0. 05% CA group was significantly lower than that of 0. 10% fumaric acid group and 0. 03% CA group (P <0. 05). 3) In the poor environment, the amount of cecal Escherichia coli of 0. 03% CA group was significantly lower than that of other groups (P <0. 05) , and the amount of jejunal Lactobacillus of 0. 05% CA group was significantly higher than that of other groups (P < 0. 05). 4) The interaction of CA and environment had extremely significant effect on the average daily feed intake, the amount of cecal Escherichia coli and Bifidobacteria, activity of serum alkaline phosphatase and super oxide dismutase (P <0. 01) , and the interaction of CA and environment had significant effect on the a-mount of Lactobacillus in cecum and jejunum (P <0. 05). In conclusion, dietary CA can improve the intestinal micro-ecological environment and growth performance of broilers. In addition, better effects can be found in the clean environment.关键词
包被酸化剂/肉仔鸡/消化道内环境/血清生化指标/环境因素Key words
coated acidifier/ broilers/ gastrointestinal environments/ serum biochemical indices/ environmental factor分类
农业科技引用本文复制引用
朱宇旌,吴芸彤,季文彦,邵彩梅,张勇..不同环境下包被酸化剂对肉仔鸡生长性能、消化道内环境及血清生化指标的影响[J].动物营养学报,2012,24(5):886-896,11.基金项目
国家自然科学基金(31101253) （31101253）
