杜洛克公猪不同体重阶段料重比的相关性及全程料重比的预测公式建立

doi:10.16431/j.cnki.1671-7236.2021.02.022

中国畜牧兽医 ›› 2021, Vol. 48 ›› Issue (2): 599-606.doi: 10.16431/j.cnki.1671-7236.2021.02.022

杜洛克公猪不同体重阶段料重比的相关性及全程料重比的预测公式建立

高若男¹, 孙晓梅¹, 解鑫¹, 杨福兴¹, 鲁慧文², 崔浩², 闫梦阳¹, 黄涛¹

1. 石河子大学动物科技学院, 石河子 832000;
2. 新疆天康畜牧科技有限公司, 昌吉 831100

收稿日期:2020-07-21 出版日期:2021-02-20 发布日期:2021-02-23
通讯作者: 鲁慧文, 黄涛 E-mail:332903110@qq.com;taohuang@sina.com
作者简介:高若男(1995-),女,新疆塔城人,硕士生,研究方向:猪遗传育种,E-mail:1571567829@qq.com
基金资助:
新疆生产建设兵团科技创新人才计划项目（2020CB018）；昌吉州高层次人才工作室专项；国家生猪产业技术体系（cars-35）

The Correlation of F/G at Different Weight Stages and the Establishment of the Prediction Formula for the Whole Process F/G in Duroc Boar

GAO Ruonan¹, SUN Xiaomei¹, XIE Xin¹, YANG Fuxing¹, LU Huiwen², CUI Hao², YAN Mengyang¹, HUANG Tao¹

1. College of Animal Science and Technology, Shihezi University, Shihezi 832003, China;
2. Xinjiang TECON Animal Husbandry Technology Corporation, Changji 831100, China

Received:2020-07-21 Online:2021-02-20 Published:2021-02-23

摘要/Abstract

摘要： 通过分析杜洛克公猪在不同体重区间的日采食量、日增重、料重比（F/G）等性状的相关关系，评估在较高始测重的情况下测定杜洛克公猪生长及料重比性能的有效性，探究杜洛克公猪不同体重阶段料重比与全程（30~110 kg）料重比的相关性，并建立不同体重阶段料重比与全程料重比的回归方程，以期增加测定站的年测定量，提高其利用率。使用8台奥饲本种猪生长性能测定系统，测定119头杜洛克公猪在30~110 kg体重阶段平均日增重（ADG）、平均日采食量（ADFI）及料重比，分析不同体重阶段料重比与全程料重比的相关性，并与全程料重比建立回归方程。结果表明，杜洛克公猪的日采食量、日增重及料重比在30~110 kg期间均呈增加趋势，并在90 kg出现1个生长期拐点，之后其采食量、日增重及料重比都有下降趋势。不同体重阶段的料重比与全程料重比具有一定的相关性，其中40~90 kg阶段的回归方程Y=0.316+0.873X₁的决定系数为0.76，该回归方程校正准确率高，说明可通过40~90 kg料重比来衡量全程料重比，这样既能缩短料重比测定时间，为准确估算全程料重比提供参考依据，同时能够有效提高种猪测定站的利用率。

关键词: 杜洛克公猪; 料重比(F/G); 日增重; 日采食量

Abstract: The correlation among the daily feed intake,daily weight gain and feed to gain ratio (F/G) of Duroc boars in different body weight ranges were analyzied to evaluate the effectiveness of using higher initial weights to determine the growth and F/G of Duroc boars,to analysis the correlation between F/G in different body weight stages and whole process F/G of Duroc boars,to establish the regression equation between F/G in different body weight stages and whole process F/G,and to increase the annual measurement quantity of the measuring station and improve its utilization rate.The data of daily gain,daily feed intake and F/G of 119 Duroc boars during 30-110 kg were measured by using 8 Osborn feed intake recording equipments.The correlation between F/G at different weight stages and F/G at whole stages was analyzed,and the regression equation was established with the F/G at the whole stages.The results showed that the daily feed intake,daily gain and F/G of Duroc boars were all increased during the period of 30-110 kg,and there was an inflection point at 90 kg during the growing period,and they were all decreased after that.There was a certain correlation between the F/G at different weight stages and the F/G at the whole stages,in which the determination coefficient of the regression equation Y=0.316+0.873X₁ (X₁ was F/G of 40-90 kg) was 0.76.The correction accuracy of regression equations was high,and the F/G of 30-110 kg could be predicted by measuring the F/G of 40-90 kg.Using this coefficient,the time of F/G measurement could be shorten,and it also provide reference for more accurate calculation of F/G,and at the same time effectively improved the utilization rate of the pig breeding station.

Key words: Duroc boars; feed to gain ratio (F/G); daily gain; daily intake

中图分类号:

S828

高若男, 孙晓梅, 解鑫, 杨福兴, 鲁慧文, 崔浩, 闫梦阳, 黄涛. 杜洛克公猪不同体重阶段料重比的相关性及全程料重比的预测公式建立[J]. 中国畜牧兽医, 2021, 48(2): 599-606.

GAO Ruonan, SUN Xiaomei, XIE Xin, YANG Fuxing, LU Huiwen, CUI Hao, YAN Mengyang, HUANG Tao. The Correlation of F/G at Different Weight Stages and the Establishment of the Prediction Formula for the Whole Process F/G in Duroc Boar[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(2): 599-606.

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杜洛克公猪不同体重阶段料重比的相关性及全程料重比的预测公式建立

The Correlation of F/G at Different Weight Stages and the Establishment of the Prediction Formula for the Whole Process F/G in Duroc Boar

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