【作者】 易中华； 王晓霞； 计成； 马秋刚； 陈旭东；

【Author】 YI Zhonghua~(1,2) WANG Xiaoxia~3 JI Cheng~1 MA Qiugang~1 CHEN Xudong~1 1.College of Animal Science and Technology,China Agricultural University,Beijing 100094,China; 2.College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China; 3.Department of Animal Science,Beijing Agricultural College,Beijing 102206,China

【机构】 中国农业大学动物营养国家重点实验室； 北京农学院动物科学系；

【摘要】 本试验选用288只1日龄 AA 肉公鸡,随机分成3个处理组,每个处理设6个重复,每个重复16只鸡。试验饲粮分别为：（1）玉米-普通豆粕饲粮作为对照组（含抗生素）；（2）低磷、低蛋白玉米-去皮豆粕基础饲粮（不含抗生素）中添加0．2g/kg 植酸酶和0．5g/kg 复合酶,设为试验饲粮Ⅰ；（3）在试验饲粮Ⅰ中进一步添加0．3％果寡糖和0．1％益生素,设为试验饲粮Ⅱ。结果表明：饲喂试验饲粮肉鸡的增重速度仍达到甚至高于对照组；试验饲粮有增加采食量和降低料重比的趋势,但与对照组差异均不显著（P＞0．05）；试验饲粮Ⅰ使氮、磷排放量分别降低 37．05％（P＜0．05）、23．70％（P＜0．05）,试验饲粮Ⅱ使氮、磷排放量分别降低41．05％（P＜0．05）、33．94％（P＜ 0．05）；试验饲粮Ⅰ使发酵粪中 NH₃和 H₂S 的散发量分别降低56．76％（P＜0．05）、45．76％（P＜0．05）,试验饲粮Ⅱ使发酵粪中 NH₃和 H₂S 的散发量分别降低80．04％（P＜0．05）、64．37％（P＜0．05）。更多还原

【Abstract】 This experiment was conducted to investigate the formulation of experimental diets and their effects on growth performance,output of nitrogen and phosphorus,and fecal odor emission in broilers.A total of 288 newly-hatched AA broilers were randomly allotted into three dietary treatments with 6 replications of 16 birds.The three experiential diets were as follows:(1)Corn-regular soybean meal diet with antibiotics as control treatment;(2)Phosphorus-low and protein-low corn-dehulled soybean meal diet (without antibiotics) supplemented with 500PTU/kg phytase and 0.2g/kg compound en- zymes,as experimental diet Ⅰ;(3)Experimental diet Ⅰ supplemented with 0.3% FOS and 0.1% probiotics,as experi- mental diet Ⅱ,respectively. The result indicated that despite phosphorus-low and protein-low,ADG was slightly higher in broilers fed experimental diets than that in control treatment and much more significant effect (P＜0.05) was observed at age of 0～3 week due to addition of enzymes,prohiotics and prebiotics;no dietary effect was apparent (P＞0.05) for ADFI and FCR;output of nitrogen and phosphorus was decreased by 37.05% (P＜0.05) and 23.70% (P＜0.05) for experimental diet Ⅰ and by 41.05% (P＜0.05) and 33.94% (P＜0.05) for experimental diet Ⅱ;fecal emission of ammonia and sulfureted hydro- gen decreased by 56.76% (P＜0.05) and 45.76% (P＜0.05) for experimental diet Ⅰ and by 80.04% (P＜0.05) and 64.37% (P＜0.05) for experimental diet Ⅱ.更多还原