Body mass index and body chemical components in Pelibuey ewes

Autores/as

  • Eufracia R. Salazar-Caytun Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil
  • Luis A. Sarmiento-Franco Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil
  • Armando J. Aguilar-Caballero Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil
  • Mozart A. Fonseca University of Nevada, Department of Agriculture, Nutrition & Veterinary Sciences | CABNR,
  • Luis O. Tedeschi Texas A&M University, Department of Animal Science, College Station

DOI:

https://doi.org/10.19136/era.a7n2.2515

Palabras clave:

sheep body composition, body condition, body energy status, body measurements

Resumen

The present study determined the relationship between body mass index (BMI) and chemical components in Pelibuey ewes. The BMI was determined in 28 ewes. At slaughter, internal organs and blood were weighed, then were mixed and grounded. The half-carcasses were dissected into subcutaneous and intermuscular fat, muscle, and bone. The muscle and fat of each animal were ground together, and one sample of the mixture was taken. The carcass and viscera samples were freeze-dried and further analysed for crude protein (CP), fat (F), and ash (A). The relationship between BMI and body composition were estimated using correlation coefficients (r) and regression models. The r between BMI and carcass crude protein and visceral crude protein were 0.51 and 0.48, respectively (p < 0.001), and between BMI and carcass F and visceral F were 0.82 and 0.71,respectively (p < 0.0001). The r2 of the models relating to BMI and body chemical components ranged from 0.62 to 0.97. There was a quadratic relationship between total body CP, and A. The chemical carcass components (CP, F, and carcass energy [CE]) showed a linear relationship with BMI, with an r2 ranging from 0.67 to 0.96. It was concluded that BMI could be used as predictors of body chemical composition in non-pregnant and non-lactating Pelibuey ewes. The use of empty body weight for calculating BMI yielded more accurate estimates of the chemical components of the body of adult sheep.

Biografía del autor/a

Eufracia R. Salazar-Caytun, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil

   

Luis A. Sarmiento-Franco, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil

   Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil

Armando J. Aguilar-Caballero, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carr, Mérida-Xmatkuil

   

Mozart A. Fonseca, University of Nevada, Department of Agriculture, Nutrition & Veterinary Sciences | CABNR,

   University of Nevada, Department of Agriculture, Nutrition & Veterinary Sciences | CABNR, 

Luis O. Tedeschi, Texas A&M University, Department of Animal Science, College Station

   Texas A&M University, Department of Animal Science, College Station

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Publicado

2020-08-05

Cómo citar

Salazar-Caytun, E. R., Sarmiento-Franco, L. A., Aguilar-Caballero, A. J., Fonseca, M. A., & Tedeschi, L. O. (2020). Body mass index and body chemical components in Pelibuey ewes. Ecosistemas Y Recursos Agropecuarios, 7(2). https://doi.org/10.19136/era.a7n2.2515

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ARTÍCULOS CIENTIFICOS

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