PDF《本交笼养海兰褐父母代种鸡生长曲线拟合研究》

收稿日期: 2018-07-05 基金项目: 国家蛋鸡产业技术体系专项基金(CARS-40-K21) ,国家自然科学基金(31601932) ,安徽省自然科学基金 (1508085SQC205)和安徽省科技重大专项(18030701172)共同资助.

作者简介: 李岩,博士,助理研究员.E-mail:[email protected] * 通信作者: 詹凯,博士,研究员.E-mail:[email protected] 安徽农业大学学报, 2019, 46(2): 224-228 Journal of Anhui Agricultural University [DOI] 10.13610/j.cnki.1672-352x.20190320.004 网络出版时间:2019/3/22 [URL] http://kns.cnki.net/kcms/detail/detail.aspx?doi=10.13610/j.cnki.1672-352x.20190320.004 本交笼养海兰褐父母代种鸡生长曲线拟合研究 李岩1,詹 凯1* ,马瑞钰

1 ,李俊营

1 ,刘伟1,万 意1,崔海军

2 ,张新2,柳哲杰

2 ,郑钟2,胡晓枫

2 (1. 安徽省农业科学院畜牧兽医研究所,畜禽产品安全工程安徽省重点实验室,合肥 230031;

2. 江西华裕家禽育种有限公司,宜春 336299) 摘要:旨在筛选适合本交笼饲养海兰褐父母代种鸡的体重生长曲线模型.120

000 只海兰褐父母代种鸡来自 江西华裕家禽育种有限公司.第1~12 周饲喂于育雏场,13 周转入至种鸡场本交笼内饲养.每周测定试验鸡体重, 采用 Logistic 模型?Gompertz 模型和 Von Bertalanffy 模型对其体重进行拟合.1~12 周龄雏鸡(公雏和母雏)的体 重均呈上升趋势,并且公雏的体重生长速度快于母雏.产蛋期母鸡体重总体呈上升趋势,但部分时期呈轻微波动. Gompertz 模型是最适用于雏鸡体重的拟合,而3种模型均可用于产蛋期母鸡体重的拟合.产蛋期母鸡的实际观测 值以及拟合值均高于该时期母鸡标准体重上限, 建议应在充分满足母鸡营养需要的前提下适当减少饲料饲喂量. 研 究结果为提高本交笼养种鸡生产性能和经济效益提供参考. 关键词:本交笼;

种鸡;

生长曲线 中图分类号:S831.4 文献标识码:A 文章编号:1672?352X (2019)02?0224?05 Study on fitting of growth curve for Hy-Line brown parent stock layers in mating cages LI Yan1 , ZHAN Kai1 , MA Ruiyu1 , LI Junying1 , LIU Wei1 , WAN Yi1 , CUI Haijun2 , ZHANG Xin2 , LIU Zhejie2 , ZHENG Zhong2 , HU Xiaofeng2 (1. Anhui Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Science, Hefei 230031;

2. Jiangxi Huayu Poultry Breeding Co., Ltd., Yichun 336299) Abstract: The purpose of the current study was to screen the growth curve model of body weight for layer breeders in mating cages. A total of

120 000 Hy-Line Brown parent stock layers was obtained from Jiangxi Huayu Poultry Breeding Co., Ltd. All birds were reared in growing farm from the first week to 12th week, and transferred to 3-tier mating cages at 13th weeks of age. The chickens were weighed weekly and data on body weight was fitted us- ing Logistic, Gompertz and Von Bertalanffy models, respectively. The results demonstrated a gradual upward trend in body weight in chicks (including cocks and pullets) with age and that cocks grew faster than pullets from the first week to 12th week. Hen weight followed a generally upward trend during the laying period, but in several period also displayed slight fluctuations. Gompertz model was the best optimized model for fitting of chick weights, and all three models were available for hens. Moreover, measurements and fitting values of hen weights were higher than the up- per limit of standard weight of hens in the corresponding period, suggesting an appropriate reduction of feed under the premise of fully meeting the nutritional requirements of hens. These results are expected to provide reference values for increase in performances and economic benefits of layer breeders in mating cages. Key words: mating cage;