Effects of feeding excess crude protein on growth performance and carcass traits of finishing pigs

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dc.contributor.author Williams, S.M.
dc.contributor.author Feoli, C.
dc.contributor.author Issa, S.
dc.contributor.author Gugle, Terry L.
dc.contributor.author Hancock, Joe D.
dc.date.accessioned 2009-10-06T20:24:40Z
dc.date.available 2009-10-06T20:24:40Z
dc.date.issued 2009-10-06T20:24:40Z
dc.identifier.uri http://hdl.handle.net/2097/1789
dc.description.abstract A total of 176 pigs (88 barrows and 88 gilts, average initial BW of 209 lb) were used in a 33-d experiment to determine the effects of excess dietary CP on growth performance and carcass measurements of finishing pigs. Pigs were sorted by sex and ancestry and blocked by weight with 11 pigs per pen and 4 pens per treatment. Treatments were corn-soybean meal based and formulated to a minimum of 0.80% total lysine but with 12, 14, 16, and 18% CP. Feed and water were consumed on an ad libitum basis until pigs were slaughtered (average final BW of 275 lb) at a commercial abattoir. Increasing CP concentration had no effect (P > 0.20) on ADG, ADFI, F/G, and HCW. With HCW used as a covariate, there were linear decreases in dressing percentage (P < 0.01) and loin depth at the last rib (P < 0.04) as CP concentration in the diet was increased from 12 to 18%. However, fat thickness at the last rib and percentage carcass lean were not affected (P > 0.34) by CP treatment. Our results indicate that increasing CP from 12 to 18% in diets for late-finishing pigs does not affect growth performance or carcass leanness but has small negative effects on dressing percentage and loin depth. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2008 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 09-074-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1001 en_US
dc.subject Carcass en_US
dc.subject Finishing pigs en_US
dc.subject Growth en_US
dc.subject Protein en_US
dc.title Effects of feeding excess crude protein on growth performance and carcass traits of finishing pigs en_US
dc.type Conference paper en_US
dc.date.published 2008 en_US
dc.citation.epage 100 en_US
dc.citation.spage 98 en_US
dc.contributor.authoreid jhancock en_US

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