Responses in residual feed intake in lines of Large White pigs selected for growth rate on restricted feeding (measured on ad libitum individual feeding)

Nguyen Hong Nguyen; C P McPhee; C M Wade

doi:10.1111/j.1439-0388.2005.00531.x

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Responses in residual feed intake in lines of Large White pigs selected for growth rate on restricted feeding (measured on ad libitum individual feeding)

Journal article

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Responses in residual feed intake in lines of Large White pigs selected for growth rate on restricted feeding (measured on ad libitum individual feeding)

Nguyen Hong Nguyen, C P McPhee and C M Wade

Journal of Animal Breeding and Genetics, Vol.122(4), pp.264-270

2005

DOI: https://doi.org/10.1111/j.1439-0388.2005.00531.x

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Abstract

Fisheries Sciences

Residual feed intake (RFI) represents the deviation of the actual ad libitum food consumption of each animal from that predicted from combination of growth rate, backfat and metabolic body weight measurements. After 4 years of divergent selection of pigs in lines for either high or low postweaning growth rate on restricted feeding, the high line exhibited a significant reduction in RFI relative to the low line. This indicated, to some extents, a lower energy requirement for maintenance in the high than in the low line, possibly because of reduced physical activity of the animals. Estimates of genetical parameters showed that RFI was moderately heritable and those genetic correlations of RFI with carcass backfat and food conversion ratio were moderate to highly positive.

Details

Title: Responses in residual feed intake in lines of Large White pigs selected for growth rate on restricted feeding (measured on ad libitum individual feeding)
Authors: Nguyen Hong Nguyen (Author) - University of Queensland
C P McPhee (Author) - Queensland Department of Primary Industries and Fisheries
C M Wade (Author) - University of Queensland
Publication details: Journal of Animal Breeding and Genetics, Vol.122(4), pp.264-270
Publisher: Wiley-Blackwell Verlag GmbH
Date published: 2005
DOI: 10.1111/j.1439-0388.2005.00531.x
ISSN: 0931-2668
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99450383702621
Output Type: Journal article

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Collaboration types: International collaboration
Web Of Science research areas: Agriculture, Dairy & Animal Science

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