清遠黃羽烏雞生長曲線的擬合與分析

摘要 為了解清遠黃羽烏雞的生長特性，篩選出最優的生長曲線模型，試驗選擇同一批次健康清遠黃羽烏雞100只（公母各半），每周進行1次體重測定，采用Logistic、 Von Bertalanffy和Gompertz 3種模型對清遠黃羽烏雞0～22周齡的體重增長數據進行了擬合分析。結果表明，3種生長曲線模型的擬合度（R2）均在0.990以上，可用于描述清遠黃羽烏雞的生長發育規律。其中，Gompertz模型對公雞體重的擬合度最高（R2=0.999），公雞的拐點體重950.49 g、拐點周齡10.28 w、最大周增重133.07 g。Von Bertalanffy模型對母雞體重的擬合度最高（R2=0.999），母雞的拐點體重為757.62 g、拐點周齡為10.47 w、最大周增重為90.91 g。以上結果說明Gompertz模型更適于擬合公雞的生長過程，Von Bertalanffy模型更適于擬合母雞的生長過程。該試驗結果初步揭示了清遠黃羽烏雞的生長過程，為該品種的選育、飼養管理和實際生產提供參考。

關鍵詞 清遠黃羽烏雞；體重；生長曲線模型；擬合

中圖分類號 S831 文獻標識碼 A 文章編號 0517-6611（2024）17-0090-04

doi：10.3969/j.issn.0517-6611.2024.17.019

Fitting and Analysis of the Growth Curve of Qingyuan Yellow-feathered Black Bone Chicken

GE Ying-ying， HE Guo-ge， ZHENG Jing-cheng et al

（Qingyuan Agricultural Science and Technology Promotion Center， Qingyuan， Guangdong 511500）

Abstract In order to understand the growth characteristics of Qingyuan yellow-feathered black bone chicken and select the best growth curve model， a total of 100 healthy Qingyuan yellow-feathered black bone chicken in the same batch number （half male and female） were selected in the experiment to measure the body weight weekly.Three models of Logistic， Von Bertalanffy and Gompertz were used to fit and analyze the body weight data of 0-22 week-old Qingyuan yellow-feathered black bone chicken. The results showed that the fitting degree （R2） of the three growth curve models were more than 0.990， which could be used to describe the growth and development laws of Qingyuan yellow-feathered black bone chicken. Among them， the fitting degree （R2） of the body weight of cocks by Gompertz model was the highest， being 0.999. The results showed that the inflection point body weight of cocks was 950.49 g， the week-age of inflection point was 10.28 w， and the maximum weekly weight gain was 133.07 g. The fitting degree of the body weight of hens by Von Bertalanffy model was the highest（0.999）. The results showed that the inflection point body weight of the hens was 757.62 g， the inflection point week-age was 10.47 w， and the maximum weekly weight gain was 90.91 g. The above results showed that the Gompertz model was more suitable for fitting the growth process of the cocks， and the Von Bertalanffy model was more suitable for fitting the growth process of the hens.The results preliminarily revealed the growth process of Qingyuan yellow-feathered black bone chicken， and provided references for breeding， feeding management and practical production of this breed.

Key words Qingyuan yellow-feathered black bone chicken;Body weight;Growth curve model;Fitting

作者簡介 葛影影（1993—），女，安徽濉溪人，畜牧師，碩士，從事畜牧技術推廣工作。

通信作者，高級獸醫師，從事畜牧技術推廣工作。

收稿日期 2023-05-08

清遠黃羽烏雞是在清遠地方雞種的基礎上，經過選育、雜交改良而形成的一個烏雞品種。該品種屬于藥肉兼用型品種，因其體型嬌小、皮薄爽滑、肉質鮮香、風味獨特且具有較好的藥用價值而著稱。其主要外貌特征如下：單冠直立，羽毛黃色，喙、皮膚、脛部為烏色，雞冠、肉髯、耳葉、眼圈呈暗紅色至烏色，前軀緊實、后軀發達，尾羽較短。成年公雞體重為2.00～2.50 kg，成年母雞體重為1.50～1.75 kg。目前清遠黃羽烏雞已形成一定規模的保種群體，尚處于初步保種選育狀態。……