CORRELATION BETWEEN AGE, WEIGHT AND BODY MEASURES AT FIRST PREGNANCY OF NELLORE HEIFERS

Autores

  • Lucas Jacomini Abud Universidade Federal do Sul e Sudeste do Pará Instituto de Estudos do Trópico Úmido Campus de Xinguara
  • Cátia Oliveira Guimarães Abud Universidade Federal do Sul e Sudeste do Pará Instituto de Estudos do Trópico Úmido Campus de Xinguara
  • Gustavo Lage Costa Universidade Federal do Goiás Escola de Veterinária e Zootecnia Campus Samambaia
  • Maria Clorinda Soares Fioravanti Universidade Federal do Goiás Escola de Veterinária e Zootecnia Campus Samambaia
  • Carlos Frederico Martins Embrapa Cerrados
  • Concepta Margaret McManus Pimentel Universidade de Brasília Faculdade de Agronomia e Medicina Veterinária
  • José Robson Bezerra Sereno Embrapa Cerrados

DOI:

https://doi.org/10.5380/avs.v23i3.48642

Palavras-chave:

beef cattle, morphometric measurements, sexual precocity

Resumo

The objective of this study was to characterize and correlate weight, body condition and morphometric measurements with the beginning of the reproductive life in heifers of the Nellore breed. To determine the age of first pregnancy, 56 heifers of the Nellore breed were exposed to bulls. The females were evaluated for weight, body condition and body measurements every two months, from 16 to 32 months of age. The body measurements were: withers height, rump height, body length, head length, rump length, ear length, distance between ribs, distance from dorsal spine to belly, distance from ground to belly, head width, rump width, distance between ischiums, ear width, cannon bone perimeter, tail implantation perimeter, and thoracic perimeter. The results show that the animals had an average weight of 334±39 kg and an average age of 29±3 months at first pregnancy. The morphometric measurements of withers height, rump height, body length, rump length, head width, rump width, width between ischiums, tail implantation perimeter and thoracic perimeter were significantly greater in the pregnant animals. Can conclude from these results that a relationship between morphometric measurements and the first pregnancy in Nellore heifers.

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Publicado

2018-09-30

Como Citar

Abud, L. J., Abud, C. O. G., Costa, G. L., Fioravanti, M. C. S., Martins, C. F., Pimentel, C. M. M., & Sereno, J. R. B. (2018). CORRELATION BETWEEN AGE, WEIGHT AND BODY MEASURES AT FIRST PREGNANCY OF NELLORE HEIFERS. Archives of Veterinary Science, 23(3). https://doi.org/10.5380/avs.v23i3.48642

Edição

Seção

Nutrição Animal