Effects of caponization on growth performance, carcass composition, and meat quality of medium growth broilers

dc.contributor.author	Symeon, GK	en
dc.contributor.author	Mantis, F	en
dc.contributor.author	Bizelis, I	en
dc.contributor.author	Kominakis, A	en
dc.contributor.author	Rogdakis, E	en
dc.date.accessioned	2014-06-06T06:50:19Z
dc.date.available	2014-06-06T06:50:19Z
dc.date.issued	2010	en
dc.identifier.issn	00325791	en
dc.identifier.uri	http://dx.doi.org/10.3382/ps.2009-00411	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5014
dc.subject	Broiler	en
dc.subject	Caponization	en
dc.subject	Carcass	en
dc.subject	Growth	en
dc.subject	Quality	en
dc.subject.other	Gallus gallus	en
dc.subject.other	testosterone	en
dc.subject.other	animal	en
dc.subject.other	animal disease	en
dc.subject.other	article	en
dc.subject.other	blood	en
dc.subject.other	body weight	en
dc.subject.other	chicken	en
dc.subject.other	growth, development and aging	en
dc.subject.other	male	en
dc.subject.other	meat	en
dc.subject.other	orchiectomy	en
dc.subject.other	organ size	en
dc.subject.other	physiology	en
dc.subject.other	randomization	en
dc.subject.other	regression analysis	en
dc.subject.other	skeletal muscle	en
dc.subject.other	standard	en
dc.subject.other	Animals	en
dc.subject.other	Body Weight	en
dc.subject.other	Chickens	en
dc.subject.other	Least-Squares Analysis	en
dc.subject.other	Male	en
dc.subject.other	Meat	en
dc.subject.other	Muscle, Skeletal	en
dc.subject.other	Orchiectomy	en
dc.subject.other	Organ Size	en
dc.subject.other	Random Allocation	en
dc.subject.other	Testosterone	en
dc.title	Effects of caponization on growth performance, carcass composition, and meat quality of medium growth broilers	en
heal.type	journalArticle	en
heal.identifier.primary	10.3382/ps.2009-00411	en
heal.publicationDate	2010	en
heal.abstract	A 2-trial experiment was conducted to evaluate the effects of caponization on growth performance, carcass composition, and meat quality of medium growing broilers. Male chicks were caponized at 3 wk of age and reared until either 18 (trial 1) or 24 (trial 2) wk of age. In trial 1, the experimental groups included intact males, sham-operated chickens, and capons, whereas trial 2 comprised only intact males and capons. The concentration of testosterone was drastically reduced by caponization but remained detectable (trial 1). In both trials, BW was lower for capons during 4 to 9 or 10 wk of age when contrasted to intact males (P < 0.05). In trial 1, capons had heavier livers than intact males and sham-operated chickens. In addition, they had lighter hearts than sham-operated chicks (P < 0.05). In trial 2, capons displayed smaller drumstick and heart weights (P < 0.05). There was a tendency for increased fat pad weight in capons (P < 0.10). Caponization resulted in increased skin-fat weights of the thigh and the breast of 24 wk of age. This was also valid for carcass fat, when expressed as a percentage of the cold carcass weight, and intramuscular fat. Caponization had no effect on pH 24 h postmortem and cooking loss. Capons' breasts had lower shear values and displayed lighter, more yellow, and less red meat than that of intact males. Conclusively, caponization, without affecting growth performance, altered meat quality characteristics, resulting in special quality chicken meat. © 2010 Poultry Science Association Inc.	en
heal.journalName	Poultry Science	en
dc.identifier.issue	7	en
dc.identifier.volume	89	en
dc.identifier.doi	10.3382/ps.2009-00411	en
dc.identifier.spage	1481	en
dc.identifier.epage	1489	en