拜城油鸡与和田黑鸡早期生长规律及生长曲线拟合与分析

发布时间：2018-03-27 13:29

本文选题：拜城油鸡　切入点：和田黑鸡　出处：《中国家禽》2017年14期

【摘要】：为了解拜城油鸡与和田黑鸡生长规律,采用Logistic、Gompertz、Bertalanffy三种非线性模型分别对其0~14周龄的生长规律及生长情况进行拟合与分析。结果表明,拜城油鸡及和田黑鸡0~14周龄的累积生长曲线基本一致并均表现为"S"型。三种模型均能较好地拟合拜城油鸡与和田黑鸡生长曲线,拟合度(R2)均高于0.998,其中Gompertz模型的拟合效果最好(拜城油鸡R2=0.9994,和田黑鸡R2=0.9993),拟合度高于Logistic和Bertalanffy模型。通过Gompertz模型拟合的拜城油鸡及和田黑鸡的极限体重(成熟体重)分别为2 119.315 g和2 072.649 g,拐点体重分别为779.733 g和762.564 g,拐点周龄分别为6.375周和6.163周,最大周增重分别为183.237 g和176.915 g。研究结果为了解新疆地方鸡种的生长发育规律及其开发利用提供了参考。
[Abstract]:In order to understand the growth law of Baicheng fowl and Hotan black chicken, three nonlinear models of Bayesian Gompertzia Bertalanffy were used to fit and analyze the growth pattern and the growth condition of Bicheng fowl at 14 weeks of age. The cumulative growth curves of Baicheng fowl and Hotan black chicken were basically the same and showed "S" type, and the three models could fit the growth curve of Baicheng fowl and Hetian black chicken. The fitting degree of R2 was higher than that of 0.998, and the fitting effect of Gompertz model was the best (Bicheng fowl R2O0.9994, Hotan black chicken R29993), and the fitting degree was higher than that of Logistic and Bertalanffy model. The limit body weight (mature weight) of Bicheng oil chicken and Hetian black chicken fitted by Gompertz model was higher than that of Bicheng oil chicken and Hotan black chicken. The body weight of the inflection point was 779.733 g and 762.564 g, and the age of the inflection point was 6.375 weeks and 6.163 weeks, respectively. The maximum weekly weight was 183.237 g and 176.915 g respectively. The results provided a reference for understanding the growth and development law of local chicken breeds in Xinjiang and their exploitation and utilization.
【作者单位】：新疆农业大学动物科学学院;
【基金】：国家自然科学基金项目(31460584) 新疆科技厅“三区”人才支持计划项目(20150501)
【分类号】：S831

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