1~21日龄“817”肉鸡饲粮钙、磷适宜水平研究  

Study on Appropriate Levels of Dietary Calcium and Phosphorus for“817”Broilers at 1 to 21 Days of Age

作　　者：刘雯雯 毕慧娟[1] 曹顶国[2] 雷秋霞[2] 王述柏[1] LIU Wenwen;BI Huijuan;CAO Dingguo;LEI Qiuxia;WANG Shubai(College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China;Institute of Poultry Science,Academy of Agricultural Sciences of Shandong Province,Ji’nan 250023,China)

机构地区：[1]青岛农业大学动物科技学院,青岛266109 [2]山东省农业科学院家禽研究所,济南250023

出　　处：《动物营养学报》2024年第8期5026-5038,共13页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山东省家禽产业技术体系(SDAIT-11-14);中央引导地方科技发展专项资金项目(YDZX2022154-01);山东省技术创新引导计划(YDZX2023097)。

摘　　要：本试验旨在探究1~21日龄“817”肉鸡(爱拔益加父母代种公鸡×罗曼褐壳蛋鸡商品代母鸡)饲粮钙、磷适宜水平。采用双因素试验设计,因素1为饲粮钙水平,分别设为0.90%、1.00%、1.10%,因素2为饲粮磷水平,分别设为0.65%、0.68%、0.71%,共配制9种试验饲粮。将864只1日龄“817”肉鸡随机分为9个处理,每个处理6个重复,每个重复16只鸡。试验期21 d。结果显示:1)饲粮钙水平对杂交肉鸡的平均日增重有显著影响(P<0.05),0.90%钙组的平均日增重显著高于1.10%钙组(P<0.05)。饲粮磷水平对杂交肉鸡的料重比有显著影响(P<0.05),0.71%磷组的料重比显著低于0.68%磷组(P<0.05)。2)饲粮钙水平对杂交肉鸡的磷表观代谢率有显著影响(P<0.05),0.90%和1.10%钙组的磷表观代谢率显著高于1.00%钙组(P<0.05);饲粮磷水平对杂交肉鸡的钙表观代谢率有显著影响(P<0.05),0.68%磷组的钙表观代谢率显著高于0.65%磷组(P<0.05);饲粮钙和磷水平对杂交肉鸡的钙和磷表观代谢率均存在显著的交互作用(P<0.05)。3)饲粮钙水平对杂交肉鸡的钙和磷沉积率均有显著影响(P<0.05),0.90%钙组的钙和磷沉积率显著高于1.00%钙组(P<0.05)。饲粮磷水平对杂交肉鸡的钙和磷沉积率均无显著影响(P>0.05)。4)饲粮钙水平对杂交肉鸡的血清磷含量有显著影响(P<0.05),0.90%和1.10%钙组的血清磷含量显著高于1.00%钙组(P<0.05)。饲粮磷水平对杂交肉鸡的血清磷含量有显著影响(P<0.05),0.71%和0.68%磷组的血清磷含量显著高于0.65%磷组(P<0.05)。饲粮磷水平对杂交肉鸡的血清碱性磷酸酶活性有显著影响(P<0.05),0.65%磷组的血清碱性磷酸酶活性显著高于0.71%磷组(P<0.05)。饲粮钙和磷水平对杂交肉鸡的血清磷含量和碱性磷酸酶活性存在显著的互作效应(P<0.05)。5)采用析因法建立的1~21日龄杂交肉鸡的每日钙和磷需要量预测模型分别为Y_(Ca)=0.210W^(0.75)+0.010△W和Y_(P)=0.124W^(0.75)+0.008△W(The aim of this experiment was to study the appropriate levels of dietary calcium and phosphorus for“817”broilers(AA parental parent breeder cocks×Roman brown laying hens commercial hens)at 1 to 21 days of age.A two-factor experimental design was used,with calcium levels of 0.90%,1.00%and 1.10%,and phosphorus levels of 0.65%,0.68%and 0.71%,respectively.A total of 9 experimental diets were formulated.Eight hundred and sixty-four 1-day-old healthy“817”broilers were randomly divided into 9 treatments with 6 replicates in each treatment and 16 chickens in each replicate.The experiment lasted for 21 days.The results showed as follows:1)dietary calcium level had a significant effect on the average daily gain of hybrid broilers(P<0.05),and the average daily gain of broilers in the 0.90%calcium group was significantly higher than that in the 1.10%calcium group(P<0.05);dietary phosphorus level significantly affected the feed to gain ratio of hybrid broilers(P<0.05),and the feed to gain ratio of broilers in the 0.71%phosphorus group was significantly lower than that in the 0.68%phosphorus group(P<0.05).2)Dietary calcium level significantly affected the apparent metabolic rate of phosphorus of hybrid broilers(P<0.05),and the apparent metabolic rate of phosphorus was significantly higher in the 0.90%and 1.10%calcium groups than that in the 1.00%calcium group(P<0.05);dietary phosphorus level significantly affected the apparent metabolic rate of calcium of hybrid broilers(P<0.05),and the apparent metabolic rate of calcium was significantly higher in the 0.68%phosphorus group than that of the 0.65%phosphorus group(P<0.05);there was a significant interaction between the levels of dietary calcium and phosphorus on the apparent metabolic rates of both calcium and phosphorus(P<0.05).3)Dietary calcium level had a significant effect on the deposition rates of calcium and phosphorus of hybrid broilers(P<0.05),and the deposition rates of calcium and phosphorus of broilers in the 0.90%calcium group were significantly higher tha

关 键 词：“817”肉鸡 钙 磷 生长性能 养分表观代谢率 养分沉积率 

分 类 号：S816[农业科学—饲料科学]