畜牧兽医学报 ›› 2023, Vol. 54 ›› Issue (12): 4952-4961.doi: 10.11843/j.issn.0366-6964.2023.12.007

• 遗传育种 • 上一篇    下一篇

文昌鸡母鸡生长模型的研究

徐小静1,2,3, 董瑞玲4, 魏立民2,3, 赵少猛1, 赵桂苹1,2,3, 张敏红1, 冯京海1*   

  1. 1. 中国农业科学院北京畜牧兽医研究所/畜禽营养与饲养全国重点实验室, 北京 100193;
    2. 海南省农业科学院三亚研究院(海南省实验动物研究中心), 三亚 572025;
    3. 海南省农业科学院畜牧兽医研究所, 海口 571100;
    4. 山西农业大学动物科学学院, 太谷 030801
  • 收稿日期:2023-05-25 出版日期:2023-12-23 发布日期:2023-12-26
  • 通讯作者: 冯京海,主要从事动物营养研究,E-mail:fengjinghai@caas.cn
  • 作者简介:徐小静(1997-),女,河北保定人,硕士生,主要从事动物营养研究,E-mail:xujing101616@163.com;董瑞玲(1998-),女,山西太原人,硕士生,主要从事动物营养研究,E-mail:drll2022@163.com。
  • 基金资助:
    文昌鸡优势特色产业集群项目(WCSCICP20211106);国家现代农业肉鸡产业技术体系专项(CARS-41-Z12);中国农业科学院科技创新工程(ASTIP-IAS07)

Study on Growth Model of Wenchang Chickens

XU Xiaojing1,2,3, DONG Ruiling4, WEI Limin2,3, ZHAO Shaomeng1, ZHAO Guiping1,2,3, ZHANG Minhong1, FENG Jinghai1*   

  1. 1. State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Sanya Institute, Hainan Academy of Agricultural Sciences (Hainan Experimental Animal Research Center), Sanya 572025, China;
    3. Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China;
    4. College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
  • Received:2023-05-25 Online:2023-12-23 Published:2023-12-26

摘要: 旨在研究、构建文昌鸡母鸡体重和体组分重的生长模型,为文昌鸡的高效养殖提供科学依据。本研究选择体重接近的1日龄健康母雏300只,随机分为6个重复,常规饲养至119日龄。每周以重复为单位测定文昌鸡的体重,每个重复取2只鸡测定体组成。研究发现,随周龄增加,文昌鸡母鸡的体重、胴体重、羽毛重、体蛋白和体脂肪重等显著升高(P<0.001)。分别采用Gompertz、Von Bertalanffy、Logistic和Richards四种非线性函数拟合文昌鸡体重、体蛋白和体脂肪的生长曲线,根据回归模型的决定系数、均方误差、赤池信息准则和残差平方和,发现Gompertz模型的拟合度最高。利用Gompertz函数公式,建立了文昌鸡体重、胴体、羽毛、体蛋白和体脂肪等组分的生长模型,除羽毛水分重外,其他组分生长模型的决定系数接近或超过0.99,其中体重、体蛋白和体脂肪的成熟重分别为2 382 g、696.8 g和1 037.1 g,相对成熟速度分别为0.023 2、0.017 4和0.017 8。利用Gompertz模型可以预测文昌鸡不同日龄的体重和体组分重。这些模型及其微积分公式有助于文昌鸡的遗传选育和生产决策,同时也为今后预测文昌鸡母鸡每日能量和氨基酸需要量提供了基础。

关键词: 文昌鸡, 生长阶段, Gompertz模型, 预测模型

Abstract: The study aimed to study the weekly changes of body weight and body composition of Wenchang chickens, and establish the empirical growth model to provide scientific basis for efficient breeding of Wenchang chickens. A total of 300 healthy 1-day-old female chicks with similar body weight were randomly divided into 6 replicates and fed conventionally until 119 days of age. The body weight and body composition of Wenchang chickens were measured weekly. The results showed that the body weight, carcass weight, feather weight, body protein weight and body fat weight of Wenchang chickens increased significantly with the increase of week age (P<0.001). Four nonlinear function formulas, Gompertz, Von Bertalanffy, Logistic and Richards, were used to fit the growth curves of body weight, body protein and body fat of Wenchang chicken, respectively. According to the determination coefficient (R2), mean square error, Akaike information criterion and residual sum of squares of regression models, it is found that Gompertz model has the highest degree of fit. The growth models of body weight, carcass, feather, body protein and body fat of Wenchang chickens were established using Gompertz model. Except for the feather moisture weight, the R2 of the other component models was close to or exceeded 0.99. The mature weight of body weight, body protein and body fat were 2 382 g, 696.8 g and 1 037.1 g, respectively. The relative maturity rates were 0.023 2, 0.017 4 and 0.017 8, respectively. The Gompertz model can be used to predict the body weight and body composition weight of Wenchang chickens at different days of age. These models and their calculus formulas are helpful for genetic selection and production decision-making of Wenchang chickens, and also provide a basis for predicting the daily energy and amino acid requirements of Wenchang chickens in the future.

Key words: Wenchang chicken, growth stage, Gompertz model, prediction model

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