Measurement of scrotal circumference in beef bulls in Rio Grande do Sul

  • Menegassi S
  • Barcellos J
  • Peripolli V
  • et al.
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Abstract

The variability of scrotal circumference and the effects of age and breed as well as the relationship between testicular weight (TW), scrotal circumference (SC), and live weight (BW) were investigated in bulls. Devon, Polled Hereford, and Red Angus breeds showed higher SC values than the other British, Continental, Synthetic, and Zebu studied breeds. The percentage of culled bulls because of low SC ranged from 7.01 to 24.25%. The increase of SC was proportional to the increase in TW and they were highly correlated (r²= 0.90). The results suggest that SC in young bulls is the best way to predict TW and, therefore, a useful tool for their selectionA variabilidade da circunferência escrotal e os efeitos de idade e raça,assim como, as relações existentes entre o peso testicular (PT), a circunferência escrotal (CE) e o peso vivo (PV) foram investigados em touros. As raças Devon, Polled Hereford e Red Angus apresentaram valores de CE mais altos que as demais raças avaliadas, tanto inglesas, como continentais, sintéticas e zebuínas. O percentual descartado de touros devido à baixa CE variou de 7,0 a 24,2%. O aumento da CE acompanhou o aumento do PT dos animais, e estes foram altamente relacionados, r² = 0,90. Os resultados sugerem que, em touros jovens, a CE é a melhor forma de predizer o PT e, portanto, uma ferramenta útil para selecionar touros

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APA

Menegassi, S. R. O., Barcellos, J. O. J., Peripolli, V., Pereira, P. R. R. X., Borges, J. B. S., & Lampert, V. N. (2011). Measurement of scrotal circumference in beef bulls in Rio Grande do Sul. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 63(1), 87–93. https://doi.org/10.1590/s0102-09352011000100014

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