The influence of feeding behaviour on growth performance, carcass and meat characteristics of growing pigs
This study investigated the effect of the feeding behaviour on growth performance, and carcass and meat characteristics of 96 barrows fed ad libitum or restrictively with high or low amino acids (AA) diets according to a 2 × 2 factorial design. The feeding behaviour traits were measured with automat...
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| description | This study investigated the effect of the feeding behaviour on growth performance, and carcass and meat characteristics of 96 barrows fed ad libitum or restrictively with high or low amino acids (AA) diets according to a 2 × 2 factorial design. The feeding behaviour traits were measured with automated feeders. From 86 kg BW, half of the pigs were given feeds with high indispensable (AA) contents, while the other half received feeds with indispensable AA contents reduced by 9% in early finishing (86-118 kg BW) and by 18% in late finishing (118-145 kg BW). Body lipid and protein retentions were estimated from BW and backfat depth measures recorded at the beginning and end of each period. Pigs were slaughtered at 145 kg BW and carcass and meat quality data were recorded. Phenotypic correlations among feeding behaviours, growth performances, and carcass and meat traits were computed from all the data after adjustment for the effects of feeding treatments. As feeding rate was the behavioural trait most highly correlated with performance and carcass traits, the records of each pig were classified into feeding rate tertiles. Then, the data were statistically analysed using a mixed model, which included feed restriction (FR), AA reduction (AAR), the FR × AAR interaction and the feeding rate tertile as fixed factors, and pen as a random factor. Pigs eating faster (52.1 to 118.9 g/min) had significantly greater final body weights (16%), average daily weight gains (27%), estimated protein gains (22%), estimated lipid retention (46%), carcass weights (16%), weights of lean cuts (14%), weights of fat cuts (21%), proportions of fat in the carcass (14%), and 4% lower proportions of carcass lean cuts than pigs eating slowly (12.6 to 38.2 g/min). Manipulating the eating rate, through management or genetic strategies, could affect feed intake and subsequent growth performance, hence carcass quality, but have little influence on feed efficiency. |
| doi_str_mv | 10.1371/journal.pone.0205572 |
| format | Article |
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The feeding behaviour traits were measured with automated feeders. From 86 kg BW, half of the pigs were given feeds with high indispensable (AA) contents, while the other half received feeds with indispensable AA contents reduced by 9% in early finishing (86-118 kg BW) and by 18% in late finishing (118-145 kg BW). Body lipid and protein retentions were estimated from BW and backfat depth measures recorded at the beginning and end of each period. Pigs were slaughtered at 145 kg BW and carcass and meat quality data were recorded. Phenotypic correlations among feeding behaviours, growth performances, and carcass and meat traits were computed from all the data after adjustment for the effects of feeding treatments. As feeding rate was the behavioural trait most highly correlated with performance and carcass traits, the records of each pig were classified into feeding rate tertiles. Then, the data were statistically analysed using a mixed model, which included feed restriction (FR), AA reduction (AAR), the FR × AAR interaction and the feeding rate tertile as fixed factors, and pen as a random factor. Pigs eating faster (52.1 to 118.9 g/min) had significantly greater final body weights (16%), average daily weight gains (27%), estimated protein gains (22%), estimated lipid retention (46%), carcass weights (16%), weights of lean cuts (14%), weights of fat cuts (21%), proportions of fat in the carcass (14%), and 4% lower proportions of carcass lean cuts than pigs eating slowly (12.6 to 38.2 g/min). Manipulating the eating rate, through management or genetic strategies, could affect feed intake and subsequent growth performance, hence carcass quality, but have little influence on feed efficiency.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0205572</identifier><identifier>PMID: 30321211</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Amino acids ; Animal behavior ; Animal feeding behavior ; Biology and Life Sciences ; Body weight gain ; Care and treatment ; Eating ; Factorial design ; Feed efficiency ; Feeders ; Feeding ; Feeding behavior ; Growth ; Hogs ; Lipids ; Meat ; Medicine and Health Sciences ; Mixed methods research ; Natural resources ; Nutrient deficiency ; Physical growth ; Physiological aspects ; Proteins ; Research and Analysis Methods ; Statistical analysis ; Swine ; Weaning</subject><ispartof>PloS one, 2018-10, Vol.13 (10), p.e0205572-e0205572</ispartof><rights>COPYRIGHT 2018 Public Library of Science</rights><rights>2018 Carcò et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Manipulating the eating rate, through management or genetic strategies, could affect feed intake and subsequent growth performance, hence carcass quality, but have little influence on feed efficiency.</description><subject>Amino acids</subject><subject>Animal behavior</subject><subject>Animal feeding behavior</subject><subject>Biology and Life Sciences</subject><subject>Body weight gain</subject><subject>Care and treatment</subject><subject>Eating</subject><subject>Factorial design</subject><subject>Feed efficiency</subject><subject>Feeders</subject><subject>Feeding</subject><subject>Feeding behavior</subject><subject>Growth</subject><subject>Hogs</subject><subject>Lipids</subject><subject>Meat</subject><subject>Medicine and Health Sciences</subject><subject>Mixed methods research</subject><subject>Natural resources</subject><subject>Nutrient deficiency</subject><subject>Physical growth</subject><subject>Physiological aspects</subject><subject>Proteins</subject><subject>Research and 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titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Carcò, Giuseppe</au><au>Gallo, Luigi</au><au>Dalla Bona, Mirco</au><au>Latorre, Maria Angeles</au><au>Fondevila, Manuel</au><au>Schiavon, Stefano</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The influence of feeding behaviour on growth performance, carcass and meat characteristics of growing pigs</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2018-10-15</date><risdate>2018</risdate><volume>13</volume><issue>10</issue><spage>e0205572</spage><epage>e0205572</epage><pages>e0205572-e0205572</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>This study investigated the effect of the feeding behaviour on growth performance, and carcass and meat characteristics of 96 barrows fed ad libitum or restrictively with high or low amino acids (AA) diets according to a 2 × 2 factorial design. The feeding behaviour traits were measured with automated feeders. From 86 kg BW, half of the pigs were given feeds with high indispensable (AA) contents, while the other half received feeds with indispensable AA contents reduced by 9% in early finishing (86-118 kg BW) and by 18% in late finishing (118-145 kg BW). Body lipid and protein retentions were estimated from BW and backfat depth measures recorded at the beginning and end of each period. Pigs were slaughtered at 145 kg BW and carcass and meat quality data were recorded. Phenotypic correlations among feeding behaviours, growth performances, and carcass and meat traits were computed from all the data after adjustment for the effects of feeding treatments. As feeding rate was the behavioural trait most highly correlated with performance and carcass traits, the records of each pig were classified into feeding rate tertiles. Then, the data were statistically analysed using a mixed model, which included feed restriction (FR), AA reduction (AAR), the FR × AAR interaction and the feeding rate tertile as fixed factors, and pen as a random factor. Pigs eating faster (52.1 to 118.9 g/min) had significantly greater final body weights (16%), average daily weight gains (27%), estimated protein gains (22%), estimated lipid retention (46%), carcass weights (16%), weights of lean cuts (14%), weights of fat cuts (21%), proportions of fat in the carcass (14%), and 4% lower proportions of carcass lean cuts than pigs eating slowly (12.6 to 38.2 g/min). Manipulating the eating rate, through management or genetic strategies, could affect feed intake and subsequent growth performance, hence carcass quality, but have little influence on feed efficiency.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>30321211</pmid><doi>10.1371/journal.pone.0205572</doi><tpages>e0205572</tpages><orcidid>https://orcid.org/0000-0002-0829-087X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Amino acids Animal behavior Animal feeding behavior Biology and Life Sciences Body weight gain Care and treatment Eating Factorial design Feed efficiency Feeders Feeding Feeding behavior Growth Hogs Lipids Meat Medicine and Health Sciences Mixed methods research Natural resources Nutrient deficiency Physical growth Physiological aspects Proteins Research and Analysis Methods Statistical analysis Swine Weaning |
| title | The influence of feeding behaviour on growth performance, carcass and meat characteristics of growing pigs |
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