饲粮粗蛋白质与赖氨酸水平对北京油鸡育雏期生长性能和血清生化指标的影响  

Effects of Dietary Crude Protein and Lysine Levels on Growth Performance and Serum Biochemical Indexes of Beijing You Chickens during Brooding Period

作　　者：赵伟玉 常枨 张倩倩 赵亚芳 王海宏[2] 初芹[2] 张剑[2] 晏志勋[2] 宋志刚[1] 耿爱莲[2] ZHAO Weiyu;CHANG Cheng;ZHANG Qianqian;ZHAO Yafang;WANG Haihong;CHU Qin;ZHANG Jian;YAN Zhixun;SONG Zhigang;GENG Ailian(College of Animal Science and Technology,Shandong Agricultural University,Tai’an 271018,China;Institute of Animal Husbandry and Veterinary Medicine,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China)

机构地区：[1]山东农业大学动物科技学院,泰安271018 [2]北京市农林科学院畜牧兽医研究所,北京100097

出　　处：《动物营养学报》2023年第3期1585-1595,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：北京市农林科学院创新能力建设项目(KJCX20200421);国家肉鸡产业技术体系项目(CARS-41-Z04);北京市家禽创新团队项目(BAIC06-2022)。

摘　　要：本试验旨在研究饲粮粗蛋白质与赖氨酸水平对北京油鸡(简称油鸡)育雏期生长性能和血清生化指标的影响。选择1日龄油鸡混合雏1350只,随机分为9组,每组5个重复,每个重复30只鸡(公母各占1/2)。采用3×3因子试验设计,饲粮粗蛋白质水平分别为17%、18%、19%,赖氨酸水平分别为0.85%、1.00%、1.15%,分别统计0~3周龄、4~6周龄和0~6周龄生长性能,6周龄末测定血清生化指标。结果显示:1)饲粮粗蛋白质水平对4~6周龄油鸡周平均采食量及周平均体增重有显著影响(P<0.05),粗蛋白质水平为19%时周平均采食量(251.85 g)与周平均体增重(85.52 g)最大;饲粮赖氨酸水平对4~6周龄油鸡料重比有显著影响(P<0.05),赖氨酸水平为1.00%时料重比最低(2.95)。0~6周龄饲粮粗蛋白质水平对油鸡周平均采食量有影响显著(P<0.05),随着粗蛋白质水平增加周平均采食量逐渐增加,且在粗蛋白质水平为19%时达到最大值(184.58 g);赖氨酸水平对周平均体增重与料重比有显著影响(P<0.05),1.00%和1.15%赖氨酸组的周平均体增重均显著高于0.85%赖氨酸组(P<0.05),且料重比显著低于0.85%赖氨酸组(P<0.05);粗蛋白质与赖氨酸水平互作对周平均体增重影响显著(P<0.05),在粗蛋白质水平为19%、赖氨酸水平为1.15%时周平均体增重最高(70.15 g)。2)饲粮粗蛋白质水平对血清尿酸含量影响显著(P<0.05),19%粗蛋白质组的尿酸含量(357.41μmol/L)显著高于其他2组(P<0.05);赖氨酸水平对血清白蛋白含量有显著影响(P<0.05),1.15%赖氨酸组血清白蛋白含量(20.09 g/L)显著高于0.85%和1.00%赖氨酸组(P<0.05)。总体上,饲粮粗蛋白质水平影响0~6周龄雏鸡采食量,赖氨酸水平影响体增重和料重比,粗蛋白质与赖氨酸水平互作对体增重影响显著。推荐北京油鸡育雏期饲粮粗蛋白质水平为19%、赖氨酸水平为1.15%即可满足其营养需求。The experiment aimed to study the effects of dietary crude protein(CP)and lysine(Lys)levels on growth performance and serum biochemical indexes of Beijing You Chickens(BYC)during brooding period.A total of 1350 one-day-old mixed BYC were randomly divided into 9 groups with 5 replicates,each replicate 30 chickens(half male and half female).A 3×3 factorial design was adopted,dietary CP levels were 17%,18%and 19%,and dietary Lys levels were 0.85%,1.00%and 1.15%,respectively.Growth performance was measured at 0 to 3 weeks of age,4 to 6 weeks of age and 0 to 6 weeks of age,and serum biochemical indexes were measured at 6 weeks of age.The results showed as follows:1)dietary CP levels had significant effects on weekly average feed intake and weekly body weight gain from 4 to 6 weeks of age(P<0.05),the 19%CP group had the highest weekly average feed intake and the highest weekly body weight gain;Lys levels had effects on feed to gain ratio(F/G)from 4 to 6 weeks of age(P<0.05),among which the 1.00%Lys had the lowest F/G.During 0 to 6 weeks age,dietary CP levels had significant effects on weekly average feed intake(P<0.05),with the increase of CP level,the weekly average feed intake also increased gradually and reached the maximum at 19%;Lys level had effects on the weekly body weight gain and F/G(P<0.05),and the weekly body weight gain in 1.0%and 1.15%Lys groups were higher than in 0.85%Lys group(P<0.05),and F/G was lower than in 0.85%Lys group;the weekly body weight gain was affected by dietary CP and Lys levels in interaction(P<0.05);when dietary CP level was 19%and lysine level was 1.15%,the weekly body weight gain was the highest.2)Serum uric acid(UC)content was affected by CP levels(P<0.05),and the UC content in the 19%CP group was higher than that in 17%and 18%CP groups(P<0.05);serum albumin content was affected by Lys levels,and the albumen content in 1.15%Lys group was higher than that in 0.85%and 1.00%Lys groups(P<0.05).In conclusion,the present study indicates that dietary CP levels affect the feed intake and d

关 键 词：粗蛋白质 赖氨酸 北京油鸡 生长性能 血清生化指标 

分 类 号：S831[农业科学—畜牧学]