首页> 外文期刊>Veterinary Medicine and Science >Evaluation of growth performance on family breeding of the Leizhou Black Duck: A preliminary study
【24h】

Evaluation of growth performance on family breeding of the Leizhou Black Duck: A preliminary study

机译:雷州黑鸭家庭育种的增长性能评价:初步研究

获取原文
       

摘要

This study determined the growth performance, correlations of linear body dimensions, slaughter performance and the fitting model of two generations of Leizhou Black Ducks. Fifteen (15) male and 225 female parents forming generation 0 were selected from the Leizhou duck population. Fifteen (15) families were created in the ratio of 1 male:15 females. Eggs from all the families were collected and numbered according to the family. Generation 1 ducklings were selected and grouped into families in the same ratio. Body weights (BWs) and linear body dimensions were recorded every 2?weeks from weeks 0 to 16. Logistic, Gompertz and Von Bertalanffy models were employed to ascertain the growth model of both sexes of Leizhou Black Ducks. Except for weeks 0–2, generation 1 families had greater BWs than the generation 0 families (p??.05). Males from both generations had significantly higher (p??.01) BWs than females at 16?weeks old. Significant positive correlations were observed between BWs and measured body dimensions for both sexes except for between BW and pelvis width (PW) where negative correlations (p??.05) were observed for males at week 10 and females at 16?weeks old. There was a significant negative correlation (p??.01) between body length and PW in males at 10?weeks. The accuracy rate of Logistic, Gompertz and Von Bertalanffy models was at 0.972 and similar was obtained by all three models with Von Bertalanffy being the best model. Live weight of generation 1 before slaughter was significantly higher (p??.01) than generation 0, whereas no significant differences were seen in the other carcass traits. These findings provide insights into breeding Leizhou Black Duck to enhance growth performance and hybrid production.
机译:这项研究确定了线性体尺寸的增长性能,屠宰性能和两代雷州黑鸭的拟合模型。十五(15)男性和225名女性父母形成0生成0,选自雷州鸭人口。十五(15)个家庭以1男性:15名女性的比例创造。来自所有家庭的鸡蛋被收集并根据家庭编号。选择1张鸭子以相同的比例选择并分组为家庭。每2周0到16周内记录体重(BWS)和线性体尺寸。物流,Gompertz和Von Bertalanffy模型用于确定雷州黑鸭两性的生长模型。除了数周0-2之外,第1代家庭比第0个家庭更大的BWS(P?<?05)。来自两代人的男性显着更高(P?。05)。在10℃的身体长度和男性中的PW之间存在显着的负相关(P?<β.01)。物流,Gompertz和von Bertalanffy模型的精度率为0.972,所有三种模型都可以获得类似于Von Bertalanffy的最佳型号。在屠宰前的生成1的生命体重显着高于0(p?<β.01),而其他胴体性状没有显着差异。这些调查结果提供了培育雷州黑鸭的见解,以提高生长性能和混合生产。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号