Macromineral requirements of Holstein calves

Authors

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

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

Issue

v.53, n.4, abr. 2018

Section

SCIENTIFIC NOTES

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., Machado, F. S., & 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