饲粮粗蛋白水平对1~28日龄云岭红肉鸡体尺性状和屠宰性能的影响  

Effect of dietary crude protein level on growth and slaughter performance of Yunling red broiler from 1~28d of age

作　　者：华雪妃 钟兴文 章雨竹 孔凡虎 陈琛[1] 陶冶 甘文斌 陶琳丽[1] HUA Xue-fei;ZHONG Xing-wen;ZHANG Yu-zhu;KONG Fan-hu;CHEN Chen;TAO Ye;GAN Wen-bin;TAO Lin-li

机构地区：[1]云南农业大学动物科学技术学院,云南省动物营养与饲料重点实验室,云南昆明650201 [2]云南省饲料工业协会,云南昆明650201 [3]云南省兽药饲料检测所,云南昆明650201

出　　处：《饲料研究》2021年第7期33-37,共5页Feed Research

基　　金：云南省重大科技专项项目“高原优质肉鸡产业工程化技术研发集成与示范推广(项目编号:2016ZA008)”;国家自然科学基金项目“云南地方鸡肌肉化学成分近红外特征光谱产生机理及校正模型研究(项目编号:31760487)”;云南省现代农业产业技术体系建设项目“云南省禽蛋产业技术体系建设(项目编号:2017KJTX0017)”。

摘　　要：试验研究不同粗蛋白水平饲粮对1~28日龄云岭红肉鸡体尺性状和屠宰性能的影响。采用单因素试验设计,将180只健康、体重相近的1日龄云岭红肉鸡随机分成5个组,每组3个重复,每个重复12只鸡(公、母各半)。各组肉鸡日粮粗蛋白水平分别为18.0%、19.0%、20.0%、21.0%和22.0%,饲喂28 d。结果显示,21%蛋白组公鸡的胸深显著高于22%蛋白组(P<0.05)。19%蛋白组公鸡的胸宽显著低于18%蛋白组(P<0.05)。20%蛋白组公鸡的龙骨长显著高于18%、19%、22%蛋白组(P<0.05)。20%蛋白组公鸡的体高显著高于其他组(P<0.05)。19%和22%蛋白组公鸡的骨盆宽显著低于18%蛋白组(P<0.05)。18%、20%、21%蛋白组母鸡的胸深显著高于22%蛋白组(P<0.05)。20%蛋白组母鸡的体高显著高于18%蛋白组(P<0.05)。20%蛋白组母鸡的胫围显著高于21%蛋白组(P<0.05)。21%蛋白组母鸡的骨盆宽极显著高于19%和20%蛋白组(P<0.01)。18%、19%、20%蛋白组母鸡的屠宰率显著高于22%蛋白组(P<0.05)。18%蛋白组母鸡的半净膛率显著高于22%蛋白组(P<0.05)。22%蛋白组母鸡的腿肌率显著高于19%蛋白组(P<0.05)。22%蛋白组母鸡的肾脏指数显著高于21%蛋白组(P<0.05)。19%和20%蛋白组母鸡的胸腺指数显著高于18%蛋白组(P<0.05)。试验表明,1~28日龄云岭红肉鸡在20%粗蛋白水平饲粮条件下,其生长发育性能较好。The experiment was to study the effect of diets with different crude protein levels on the body size characters and slaughter performance of Yunling red broiler chickens aged 1~28 d. Single factor experiment design was used with180 health, similar weight of one day age Yunling red broilers which were randomly divided into five groups, with three replicates in each group and 12 broiler in each replicate(half in male and female). The dietary crude protein levels of broilers in each group were 18.0%, 19.0%, 20.0%, 21.0% and 22.0%, and breeding period for 28 d. The results showed that the breast depth of cock in 21% protein group was significantly higher than that of 22% protein group(P<0.05). The breast width of cock in 19% protein group was significantly lower than that of 18% protein group(P<0.05). The keel length of cock in 20% protein group was significantly higher than that of 18% protein group, 19% protein group and 22%protein group(P<0.05). The body height of cock in 20% protein group was significantly higher than that of other groups (P<0.05). The pelvic width of cock in the 19% protein group and 22% protein group was significantly lower than that of 18% protein group(P<0.05). The breast depth of the hens in 18% protein group, 20% protein group and 21% protein group was significantly higher than that of 22% protein group(P<0.05). The body height of the hens in 20% protein group was significantly higher than that of 18% protein group(P<0.05). The tibia circumference of the hens in 20% protein group was significantly higher than that of 21% protein group(P<0.05). The pelvic width of the hens in 21%protein group was extremely higher than that of 19% protein group and 20% protein group(P<0.01). The slaughter rate of hens in 18% protein group, 19% protein group and 20% protein group was significantly higher than that of 22% protein group(P<0.05). The half evisceration rate of 18% protein group was significantly higher than that of 22% protein group(P<0.05). The leg muscle rate of hens in 22% protein group was sig

关 键 词：云岭红肉鸡 粗蛋白 体尺 屠宰性能 器官指数 

分 类 号：S831.5[农业科学—畜牧学]