畜牧兽医学报 ›› 2025, Vol. 56 ›› Issue (11): 5402-5413.doi: 10.11843/j.issn.0366-6964.2025.11.006

• 遗传育种 • 上一篇    下一篇

猪一般恢复力性状遗传参数估计

张鼎新1(), 冷秉雯1(), 罗蓊昀1, 王祉媛1, 张勤1,2, 姜力1,*()   

  1. 1. 中国农业大学动物科学技术学院 畜禽生物育种全国重点实验室 畜禽育种国家工程实验室, 北京 100193
    2. 山东农业大学动物科学技术学院, 泰安 271018
  • 收稿日期:2025-01-21 出版日期:2025-11-23 发布日期:2025-11-27
  • 通讯作者: 姜力 E-mail:1452369265@qq.com;lengbingw@163.com;lijiang@cau.edu.cn
  • 作者简介:张鼎新(2001-),男,湖北黄冈人,硕士生,主要从事数量遗传研究,E-mail: 1452369265@qq.com
    冷秉雯(2002-),女,山东东营人,硕士生,主要从事数量遗传研究,E-mail: lengbingw@163.com
    第一联系人:

    张鼎新和冷秉雯为同等贡献作者

  • 基金资助:
    农业科技重大项目

Estimation of Genetic Parameters for General Resilience Traits in Pigs

ZHANG Dingxin1(), LENG Bingwen1(), LUO Wengyun1, WANG Zhiyuan1, ZHANG Qin1,2, JIANG Li1,*()   

  1. 1. State Key Laboratory of Animal Biotechnology Breeding, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
    2. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China
  • Received:2025-01-21 Online:2025-11-23 Published:2025-11-27
  • Contact: JIANG Li E-mail:1452369265@qq.com;lengbingw@163.com;lijiang@cau.edu.cn

摘要:

旨在通过对大白猪和长白猪的纵向采食数据进行分析,对不同的一般恢复力性状指标进行遗传参数估计和比较。本研究通过利用1 692头大白和长白育肥猪的自动饲喂测定站生长和采食记录数据分析平均日增重(average daily gain, ADG)、平均日采食量(average daily feed intake, ADFI)、平均日采食时间(average daily feeding duration, ADFD)、平均日访问次数(average daily visit times, ADVT)和8个一般恢复力性状。采食量日变化(VarFI)、采食时间日变化(VarFD)、访问次数日变化(VarVT)、采食量变化方差的对数转换(LnVar_FI)、采食时间变化方差的对数转换(LnVar_FD)、访问次数变化方差的对数转换(LnVar_VT)、采食量对应的断饲天数(OFFFI)、采食时间对应的断饲天数(OFFFD)被作为一般恢复力性状进行计算。分别利用单性状和多性状模型计算上述性状的遗传力和遗传相关。结果表明,日增重、平均采食量、平均采食时间和平均日访问次数的遗传力分别为0.25、0.49、0.53和0.43。一般恢复力性状VarFI、VarFD、VarVT、LnVar_FI、LnVar_FD、LnVar_VT、OFFFI、OFFFD的遗传力分别为0.33、0.26、0.38、0.39、0.29、0.37、0.14和0.16。日增重与平均采食量之间有较高的正遗传相关,为0.83。日增重与一般恢复力性状的遗传相关在-0.85~0.83之间。其中,VarFI、LnVar_FI与ADG之间有较高的正相关(rg=0.83),OFFFD与ADG之间有较高的负相关(rg=-0.85)。LnVar_FD与ADVT之间以及LnVar_VT与ADG之间均具有较高的负相关,分别是-0.89和-0.76。本研究通过计算和比较不同一般恢复力指标的遗传参数,发现一般恢复力性状具有低到中等遗传力。其中,LnVar_FI和VarFI具有较高的遗传力,且与生产性状具有较高的遗传相关,可考虑作为猪一般恢复力性状的评估指标用于个体选育。本研究结果为猪的一般抗病性或恢复力相关性状的选育提供重要理论依据。

关键词: 猪, 一般恢复力, 纵向采食数据, 遗传力, 遗传相关

Abstract:

The objective of this study was to estimate and compare genetic parameters of different general resilience traits using longitudinal daily feed intake data of Large White and Landrace pigs. Growth and feed intake records data from 1 692 Large white and Landrace finishing pigs were collected via automatic feeders, and used to analyze average daily gain (ADG), average daily feed intake (ADFI), average daily feeding duration (ADFD), average daily visit times (ADVT) and 8 general resilience traits were analyzed. Daily variability in feed intake (VarFI), daily variability in feeding duration (VarFD), daily variability in visit times (VarVT), the log-transformed variance of deviation for the daily feed intake (LnVar_FI), the log-transformed variance of deviation for the daily feeding duration (LnVar_FD), the log-transformed variance of deviation for the daily visit times (LnVar_VT), off-feed days for corresponding feed intake (OFFFI), and off-feed days for corresponding feeding duration (OFFFD) were calculated as general resilience traits. The heritability and genetic correlation of the above traits were calculated using the single and multiple traits models, respectively. The results showed that the heritability of ADG, ADFI, ADFD and ADVT were 0.25, 0.49, 0.53 and 0.43, respectively. The heritability of general resilience traits VarFI, VarFD, VarVT, LnVar_FI, LnVar_FD, LnVar_VT, OFFFI and OFFFD were 0.33, 0.26, 0.38, 0.39, 0.29, 0.37, 0.14, and 0.16, respectively. The genetic correlation was positive and high between ADG and ADFI with value of 0.83. The genetic correlation between ADG and general resilience traits ranged from -0.85 to 0.83. Specifically, there was a high positive correlation (r=0.83) between both VarFI and ADG and between LnVar_FI and ADG, while a high negative correlation (r=-0.85) was observed between OFFFD and ADG. There was a high negative correlation both between LnVar_FD and ADVT, and between LnVar_VT and ADG, with values of -0.89 and -0.76, respectively. In conclusion, we calculated and compared the genetic parameters of different general resilience traits, and found that the heritability of these general resilience indicators was low to moderate. Among them, LnVar_FI and VarFI exhibited high heritability and high genetic correlations with production traits, and can be considered as evaluation indicators of general resilience traits in pigs for individual selection. The results of this study provide important theoretical basis for the breeding of general disease resistance or resilience-related traits in pigs.

Key words: pig, general resilience, longitudinal daily feed intake data, heritability, genetic correlation

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