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Impact of a high-fibre diet on genetic parameters of production traits in growing pigs

The use of diets with increased fibre content from alternative feedstuffs less digestible for pigs is a solution considered to limit the impact of increased feed costs on pig production. This study aimed at determining the impact of an alternative diet on genetic parameters for growth, feed efficien...

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Autores principales: Déru, V., Bouquet, A., Hassenfratz, C., Blanchet, B., Carillier-Jacquin, C., Gilbert, H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cambridge University Press 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7538339/
https://www.ncbi.nlm.nih.gov/pubmed/32618545
http://dx.doi.org/10.1017/S1751731120001275
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author Déru, V.
Bouquet, A.
Hassenfratz, C.
Blanchet, B.
Carillier-Jacquin, C.
Gilbert, H.
author_facet Déru, V.
Bouquet, A.
Hassenfratz, C.
Blanchet, B.
Carillier-Jacquin, C.
Gilbert, H.
author_sort Déru, V.
collection PubMed
description The use of diets with increased fibre content from alternative feedstuffs less digestible for pigs is a solution considered to limit the impact of increased feed costs on pig production. This study aimed at determining the impact of an alternative diet on genetic parameters for growth, feed efficiency, carcass composition and meat quality traits. A total of 783 Large White pigs were fed a high-fibre (HF) diet and 880 of their sibs were fed a conventional (CO) cereal-based diet. Individual daily feed intake, average daily gain, feed conversion ratio and residual feed intake were recorded as well as lean meat percentage (LMP), carcass yield (CY) and meat quality traits. Pigs fed the CO diet had better performances for growth and feed efficiency than pigs fed the HF diet. They also had lower LMP and higher CY. In addition, pigs fed the CO diet had lower loin percentage and ham percentage and higher backfat percentage. No differences were observed in meat quality traits between diets, except for a* and b* values. For all traits, the genetic variances and heritability were not different between diets. Genetic correlations for traits between diets ranged between 0.80 ± 0.13 and 0.99 ± not estimable, and none were significantly different from 0.99, except for LMP. Thus, traits in both diets were considered as mainly affected by similar sets of genes in the two diets. A genetic correlation lower than 0.80 would justify redesigning the breeding scheme; however, some genetic correlations did not differ significantly from 0.80 either. Therefore, larger populations are needed for a more definitive answer regarding the design of the breeding scheme. To further evaluate selection strategies, a production index was computed within diets for the 29 sires with estimated breeding value reliability higher than 0.35. The rank correlation between indices estimated in the CO and in the HF diet was 0.72. Altogether, we concluded that limited interaction between feed and genetics could be evidenced, and based on these results there is no need to change pig selection schemes to adapt to the future increased use of alternative feedstuffs in production farms.
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spelling pubmed-75383392020-10-15 Impact of a high-fibre diet on genetic parameters of production traits in growing pigs Déru, V. Bouquet, A. Hassenfratz, C. Blanchet, B. Carillier-Jacquin, C. Gilbert, H. Animal Research Article The use of diets with increased fibre content from alternative feedstuffs less digestible for pigs is a solution considered to limit the impact of increased feed costs on pig production. This study aimed at determining the impact of an alternative diet on genetic parameters for growth, feed efficiency, carcass composition and meat quality traits. A total of 783 Large White pigs were fed a high-fibre (HF) diet and 880 of their sibs were fed a conventional (CO) cereal-based diet. Individual daily feed intake, average daily gain, feed conversion ratio and residual feed intake were recorded as well as lean meat percentage (LMP), carcass yield (CY) and meat quality traits. Pigs fed the CO diet had better performances for growth and feed efficiency than pigs fed the HF diet. They also had lower LMP and higher CY. In addition, pigs fed the CO diet had lower loin percentage and ham percentage and higher backfat percentage. No differences were observed in meat quality traits between diets, except for a* and b* values. For all traits, the genetic variances and heritability were not different between diets. Genetic correlations for traits between diets ranged between 0.80 ± 0.13 and 0.99 ± not estimable, and none were significantly different from 0.99, except for LMP. Thus, traits in both diets were considered as mainly affected by similar sets of genes in the two diets. A genetic correlation lower than 0.80 would justify redesigning the breeding scheme; however, some genetic correlations did not differ significantly from 0.80 either. Therefore, larger populations are needed for a more definitive answer regarding the design of the breeding scheme. To further evaluate selection strategies, a production index was computed within diets for the 29 sires with estimated breeding value reliability higher than 0.35. The rank correlation between indices estimated in the CO and in the HF diet was 0.72. Altogether, we concluded that limited interaction between feed and genetics could be evidenced, and based on these results there is no need to change pig selection schemes to adapt to the future increased use of alternative feedstuffs in production farms. Cambridge University Press 2020-11 2020-06-19 /pmc/articles/PMC7538339/ /pubmed/32618545 http://dx.doi.org/10.1017/S1751731120001275 Text en © The Animal Consortium 2020 http://creativecommons.org/licenses/by/4.0/ This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Déru, V.
Bouquet, A.
Hassenfratz, C.
Blanchet, B.
Carillier-Jacquin, C.
Gilbert, H.
Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title_full Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title_fullStr Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title_full_unstemmed Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title_short Impact of a high-fibre diet on genetic parameters of production traits in growing pigs
title_sort impact of a high-fibre diet on genetic parameters of production traits in growing pigs
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7538339/
https://www.ncbi.nlm.nih.gov/pubmed/32618545
http://dx.doi.org/10.1017/S1751731120001275
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