Ham and belly processing characteristics of immunological castrated barrows (Improvest) fed ractopamine hydrochloride (Paylean). (February 2016)

• Record Type: Journal Article
• Authors: Lowe, B.K.; Overholt, M.F.; Gerlemann, G.D.; Carr, S.N.; Rincker, P.J.; Schroeder, A.L.; Petry, D.B.; McKeith, F.K.; Allee, G.L.; Dilger, A.C.
• Is Part Of: Meat science. Volume 112(2016:Feb.)
• Page Start: 103
• Page End: 109
• Publication Date: 2016-02
• Subjects: Immunological castration -- Ractopamine -- Further processing -- Paylean; Meat -- Periodicals; Meat industry and trade -- Periodicals; Viande -- Périodiques; Viande -- Industrie -- Périodiques; Meat; Meat industry and trade; Periodicals; 641.36
• DOI: 10.1016/j.meatsci.2015.10.019
• Languages: English
• ISSNs: 0309-1740

Abstract

Abstract: Effects of sex class (physically castrated, PC or immunologically castrated, IC) and diet (0 or 5 mg/kg ractopamine hydrochloride, RAC) on characteristics of ham and bellies were determined from pigs slaughtered in three groups with similar ending live weights. One carcass per pen per marketing group (n = 8) was selected to evaluate further processing characteristics. Data were analyzed as a 2 × 2 factorial design with a split plot in time and fixed effects of sex, diet, marketing group, and their interactions. IC fresh bellies were thinner ( P < 0.01) and softer ( P < 0.01) than PC bellies. IC hams and bellies were leaner ( P < 0.05) than those from PC pigs. RAC feeding did not affect ( P > 0.05) fresh ham or belly characteristics but decreased ( P < 0.01) fat in cured PC bellies. Marketing group affected ( P < 0.05) fresh quality, processing characteristics, and composition of hams and bellies. Immunological castration and RAC produced leaner finished products but did not alter processing yield of hams or bacon.