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沐川乌骨黑鸡生长曲线拟合与分析 被引量:2

Establishment and analysis of growth curve in Muchuan black chicken
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摘要 为研究沐川乌骨黑鸡的生长发育规律,试验采用Logistic、Bertalanffy和Gompertz模型分别对沐川乌骨黑鸡0~20周龄体重数据进行生长曲线拟合与分析。结果表明:三种数学模型均能很好地拟合沐川乌骨黑鸡的生长曲线,拟合度均在0.988以上,其中Gompertz模型对母鸡生长曲线拟合度最高,达0.999;Bertalanffy模型对公鸡生长曲线拟合度最高,达0.995。根据拟合度高的Gompertz模型对母鸡体重、Bertalanffy模型对公鸡体重的拟合分析,沐川乌骨黑鸡拐点周龄为6.8-6.9周,母鸡拐点体重为692.98 g,公鸡拐点体重为805.57 g。表明运用三种模型对沐川乌骨黑鸡生长曲线进行拟合是可行的。 To find out the growth and development regulars,the growth curves of Muchuan black chickenat the age of 0-20 weeks were establishedusing Logistic,Bertalanffy and Gompertz models in this study. The results showed that three models can well fit the growth curve of Muchuan black chicken with a fitting degree of above 0. 988,while the best-fit model was Gompertz model for hens with the fitting degree of 0. 999 and the Bertalanffy model fpr cocks with the fitting degree of 0. 995. Finally,the weight of hens and cocks according to their corresponding high fitting models were analyzed. Results showed that the growth inflexion of Muchuan black chicken was 6. 8-6. 9 weeks old with an inflexion weight of 692. 98 g in hens and 805. 57 g in cocks. In conclusion,it was feasible to fit the growth curve of Muchuan black chicken with Logistic,Bertalanffy and Gompertz models.
作者 余春林 蒋小松 杜华锐 杨朝武 李晴云 张增荣 夏波 胡陈明 宋小燕 熊霞 杨礼 彭涵 邱莫寒 YU Chunlin;JIANG Xiaosong;DU Huarui;YANG Chaowu;LI Qingyun;ZHANG Zengrong;XIA Bo;HU Chenming;SONG Xiaoyan;XIONG Xia;YANG Li;PENG Han;QIU Mohan;Sichuan Animal Science Academy;Animal Breeding and Genetics Key Laboratory of Sichuan Province;Sichuan Daheng Poultry Breeding Co.,Ltd.;
出处 《黑龙江畜牧兽医》 北大核心 2018年第10期195-198,248共5页 Heilongjiang Animal Science And veterinary Medicine
基金 “十三五”国家科技支撑计划项目(2015BAD03B03) 四川省科技支撑计划项目(2016NZ0034 2017NZ0013)
关键词 沐川乌骨黑鸡 生长发育 累积生长 生长曲线 拟合度 Muchuan black chicken growth curve
作者简介 余春林(1984-),女,助理研究员,硕士,研究方向为家禽育种学,yuchunlin1984@sina.com.;通信作者:邱莫寒(1982-),女,副研究员,博士,研究方向为家禽育种学,mohan.qiu@163.com.
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