Kavlak , A T & Uimari , P 2019 , ' Estimation of heritability of feeding behaviour traits and their correlation with production traits in Finnish Yorkshire pigs ' , Journal of Animal Breeding and Genetics , vol. 136 , no. 6 , pp. 484-494 . https://doi.org/10.1111/jbg.12408
Title: | Estimation of heritability of feeding behaviour traits and their correlation with production traits in Finnish Yorkshire pigs |
Author: | Kavlak, Alper T.; Uimari, Pekka |
Contributor organization: | Department of Agricultural Sciences Doctoral Programme in Sustainable Use of Renewable Natural Resources Helsinki One Health (HOH) Animal Science Research |
Date: | 2019-11 |
Language: | eng |
Number of pages: | 11 |
Belongs to series: | Journal of Animal Breeding and Genetics |
ISSN: | 0931-2668 |
DOI: | https://doi.org/10.1111/jbg.12408 |
URI: | http://hdl.handle.net/10138/315786 |
Abstract: | Abstract A major proportion of the costs of pork production is related to feed. The feed conversion rate (FCR) or residual feed intake (RFI) is thus commonly included in breeding programmes. Feeding behaviour traits do not directly have economic value but, if correlated with production traits, can be used as auxiliary traits. The aim of this study was to estimate the heritability of feeding behaviour traits and their genetic correlations with production traits in the Finnish Yorkshire pig population. The data were available from 3,235 pigs. Feeding behaviour was measured as the number of visits per day (NVD), time spent in feeding per day (TPD), daily feed intake (DFI), time spent feeding per visit (TPV), feed intake per visit (FPV) and feed intake rate (FR). The test station phase was divided into five periods. Estimates of heritabilities of feeding behaviour traits varied from 0.17 to 0.47. Strong genetic correlations were obtained between behaviour traits in all periods. However, only DFI was strongly correlated with the production traits. Interestingly, a moderate positive genetic correlation was obtained between FR and backfat thickness (0.1?0.5) and between FR and average daily gain (0.3?0.4), depending on the period. Based on the results, there is no additional benefit from including feeding-related traits other than those commonly used (FCR and RFI) in the breeding programme. However, if correlated with animal welfare, the feeding behaviour traits could be valuable in the breeding programme. |
Subject: |
eating rate
feeding behaviour feeding rate genetic correlation heritability pigs 412 Animal science, dairy science 1184 Genetics, developmental biology, physiology |
Peer reviewed: | Yes |
Rights: | unspecified |
Usage restriction: | openAccess |
Self-archived version: | acceptedVersion |
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