Macromineral requirements of Holstein calves

Authors

  • João Paulo Pacheco Rodrigues Universidade Federal de Viçosa
  • Jéssika Carolina Moutinho Lima Universidade Federal de Viçosa
  • Marcelo Messias Duarte Castro Universidade Federal de Viçosa
  • Sebastião de Campos Valadares Filho Universidade Federal de Viçosa
  • Mario Luiz Chizzotti Universidade Federal de Viçosa
  • Mariana Magalhães Campos Embrapa Gado de Leite
  • Fernanda Samarini Machado Embrapa Gado de Leite
  • Marcos Inácio Marcondes Universidade Federal de Viçosa

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.25904

Keywords:

mineral nutrition, nutrient requirement, ruminants

Abstract

The objective of this work was to quantify the net requirements for the maintenance (NRm) and growth (NRg), as well as the retention coefficient (RC) of calcium, phosphorus, sodium, potassium and magnesium, of Holstein calves. The NRm were 87.8, 20.8, 4.36, 2.21, and 1.01 mg kg-1 of empty body weight for Ca, P, Na, K, and Mg, respectively. The RC was 0.882, 0.473, 0.274, 0.088, and 0.052 for Ca, P, Na, K, and Mg respectively. The requirements of Ca and P of Holstein calves are higher than those estimated for adult animals.

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Published

2018-06-19

How to Cite

Rodrigues, J. P. P., Lima, J. C. M., Castro, M. M. D., Valadares Filho, S. de C., Chizzotti, M. L., Campos, M. M., … Marcondes, M. I. (2018). Macromineral requirements of Holstein calves. Pesquisa Agropecuaria Brasileira, 53(4), 522–525. https://doi.org/10.1590/S1678-3921.pab2018.v53.25904

Issue

v.53, n.4, abr. 2018

Section

SCIENTIFIC NOTES