Cattle reproductive performance in the Paiaguás sub-region of the pantanal, Brazil. I. Effect of mineral supplementation and weaning age on first calving age and weight

Authors

  • Edison Beno Pott
  • Paulo A. R. de Brum
  • Iraja L. de Almeida
  • Rymer R. Tullio

DOI:

https://doi.org/10.1590/S1678-3921.pab1987.v22.14839

Keywords:

cattle production

Abstract

The effects of mineral supplementation (common salt = CS, CS + dicalcium phosphate = SP and SP + micronutrients) and of weaning age (six, eight and ten months) on the age and weight at first calving of Zebu heifers were studied in the Paiaguás sub-region of the Pantanal Mato-grossense, Brazil. A completely randomized design was used. The experiment was conducted from February 1980 to November 1984. Age and weight as first calving were not influenced (P>0.05) by weaning age. Also mineral supplementation did not affect the age at first calving, but influenced weight at calving, which was about 30 kg higher (P<0.01) in heifers receiving phosphorus supplement than those receiving only salt. It was concluded that it is feasible to antecipate weaning in the Pantanal and to supply phosphorus supplementation.

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How to Cite

Pott, E. B., Brum, P. A. R. de, Almeida, I. L. de, & Tullio, R. R. (2014). Cattle reproductive performance in the Paiaguás sub-region of the pantanal, Brazil. I. Effect of mineral supplementation and weaning age on first calving age and weight. Pesquisa Agropecuaria Brasileira, 22(09/10), 1067–1073. https://doi.org/10.1590/S1678-3921.pab1987.v22.14839

Issue

v.22, n.09/10, set./out. 1987

Section

ANIMAL SCIENCE