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Ratio between height and width of longissimus muscle as an indicator of retail beef yield / Razão entre altura e largura do músculo longissimus como indicador do rendimento de cortes cárneos de bovinos

Tagima Marcelo, Erika; Eugenia Zerlotti Mercadante, Maria; Figueiredo Martins Bonilha, Sarah; Sannomiya Sakamoto, Leandro; Geraldo Ribeiro, Enilson; Helena Branco, Renata.
Artigo em Inglês | VETINDEX | ID: vti-467821


The technique of ultrasound is a noninvasive method performed in vivo. The technology has been used to measure carcass traits as longissimus muscle area (LMA), subcutaneous fat and marbling. It allows accurate data measures with no animal slaughter and a greater number of animals evaluated in a period, resulting in economic benefit. Some technicians recommend the use of the relation between longissimus muscle height and width as a better indicator trait of retail beef yield than LMA itself. The purpose of this study was to calculate the ratio between longissimus muscle height and width (RATIO) in order to estimate the simple correlation between RATIO, obtained in vivo, and dressing percentage (DP%), retail beef yield expressed in kg (YIELD_kg) and percentage of retail beef yield (YIELD_%), obtained after slaughter. A total of 116 Nellore bulls born between 2006 and 2009, with an average age and weight of 18 ± 1.10 months and 437 ± 60 kg at slaughter, which were raised and finished at Centro APTA Bovinos de Corte, Sertãozinho, São Paulo, Brazil, were used. Among 116 animals, 33 were slaughtered in 2008, 34 in 2009, 25 in 2010 and 24 in 2011. Before slaughter images were obtained by ultrasound between the 12th and 13th ribs, transversely over the longissimus muscle with immobilized animals in containment chamber, using the ultrasound machine Pie Medical 401347 - Aquila (Esaote Eu
O artigo não apresenta resumo em português.
Biblioteca responsável: BR68.1