新杨黑羽蛋鸡消化器官生长发育规律研究  

Growth and development patterns of Xinyang black-feathered laying hens’digestive organs

作　　者：李红[1] 颜瑶 姚俊峰[1] 王晓亮[1] 蔡霞[1] 严华祥[1] LI Hong;YAN Yao;YAO Junfeng;WANG Xiaoliang;CAI Xia;YAN Huaxiang(Institute of Animal Husbandry&Veterinary Science,Shanghai Academy of Agricultural Sciences,Shanghai 201106,China;Shanghai Poultry Breeding Company,Shanghai 201419,China)

机构地区：[1]上海市农业科学院畜牧兽医研究所,上海201106 [2]上海家禽育种有限公司,上海201419

出　　处：《上海农业学报》2024年第3期73-78,共6页Acta Agriculturae Shanghai

基　　金：山东省重大科技创新工程项目(2019JZZY020611);国家现代农业产业技术体系(CARS-40);上海市农业科学院卓越团队建设项目[沪农科卓(2022)021];国家级星火计划(2015GA68002)。

摘　　要：为改善新杨黑羽蛋鸡配套系的生产性能,对新杨黑羽蛋鸡育雏期(1—6周龄)、育成期(7—18周龄)和产蛋期(19—80周龄)消化器官生长发育规律进行探究。以500羽1日龄新杨黑羽蛋鸡为测定群体,每周随机选取60羽进行称重,1—33周龄每周随机解剖10羽,45、47、55周龄及80周龄分别解剖50、14、20羽及36羽,测定鸡体重、免疫器官重、消化器官重以及消化道各段的长度,分析其变化规律。结果表明:新杨黑羽蛋鸡肌胃、腺胃快速生长期在9周龄之前,发育完全在13周龄左右;肠道的快速生长期为8周龄之前,21—24周龄再次快速生长,24周龄基本趋于稳定;肠道的最适生长曲线拟合模型为Bertalanffy,生长拐点在4周龄左右,肌胃的最适生长曲线拟合模型为Gompertz;体重与肝脏重和腺胃重、肠道长极显著相关(P<0.01);腺胃重与肝脏重极显著相关(P<0.01),与空肠长、十二指肠长显著相关(P<0.05);肌胃重与其他器官相关性不显著(P>0.05)。In order to improve the production performance of Xinyang black-feathered laying hens,the growth and development patterns of Xinyang black-feathered laying hens’digestive organs during the brooding period(1—6 weeks old),breeding period(7—18 weeks old)and laying period(19—80 weeks old)were studied.Five hundred one-day-old hens were selected as a test group.Sixty hens were randomly selected for weighting every week,and hens were dissected to measure their body weight,immune organ weight,digestive organ weight,and digestive tract length respectively.Ten hens aged 1—33 weeks were randomly dissected every week,and 50,14,20 and 36 hens were dissected at 45,47,55 and 80 weeks of age.The results showed that the rapid growth period of muscular stomach and proventriculus of Xinyang black-feathered laying hens was before 9 weeks of age and complete development was around 13 weeks of age.The rapid growth period of the intestine was before 8 weeks of age,and it rapidly grew again at 21—24 weeks of age,with a stable trend at 24 weeks of age.The optimal growth curve model of intestine was Bertalanffy,with a growth inflection point around 4 weeks of age.The optimal growth curve model for muscular stomach was Gompertz.The body weight was significantly correlated with the liver weight、proventriculus weight and intestinal length(P<0.01);The proventriculus weight had a very significant correlation with the liver weight(P<0.01),and significant correlation with the jejunum length and the duodenum length(P<0.05);The muscular stomach was not significantly correlated with other organs(P>0.05).

关 键 词：新杨黑羽蛋鸡 消化器官 生长发育 最适模型 

分 类 号：S831[农业科学—畜牧学]