Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/21794
Tipo: Artigo
Título: Indirect methods for predicting body composition of Boer crossbreds and indigenous goats from the Brazilian semiarid
Autor(es): Silva, Tiago Santos
Chizzotti, Mario Luiz
Busato, Karina Costa
Rafael Torres de Souza, Rodrigues
Silva, Ivonete Ferreira da
Queiroz, Mário Adriano Ávila
Abstract: The aim of this study was to evaluate the correlation and to develop regression equations between the body composition obtained by the comparative slaughter and the neck composition and the ultrasound ribeye area (REAu) in goats from the Brazilian semiarid region. Forty-five intact male goats from three genetic groups were used: 15 Canindé, 15 Moxotó, and 15 F1 Boer x non-descript breed. Animals were randomly assigned to three feeding levels (ad libitum, 25 and 50 % restriction) aimed to result in different slaughter weights and body composition, to fit the regression equations. The REAu was assessed between the 12th and 13th ribs with a 7.5 MHz linear transducer. The values of crude protein, ether extract, and water in the empty body showed high positive correlation (P < 0.01) with REAu and with the same values measured in the neck for all genetic groups. In addition, body composition was well predicted (R 2 > 0.80) from the REAu and from the neck composition.
Palavras-chave: Longissimus dorsi
Neck
Ribeye area
Ultrasound
Editor: Tropical Animal Health and Production
Tipo de Acesso: Springer Science+Business Media Dordrecht
URI: https://doi.org/10.1007/s11250-015-0847-y
http://www.locus.ufv.br/handle/123456789/21794
Data do documento: 8-Mai-2015
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