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Bio-economic evaluation of a reduced phosphorus supplementation strategy for a cow-calf system in Brazil: A case study

journal contribution
posted on 2021-04-14, 02:26 authored by Samara P Lopes, Felipe Z Garcia, Vinicius C Souza, Diogo Fleury Azevedo CostaDiogo Fleury Azevedo Costa, Pedro Malafaia
© 2017, Springer Science+Business Media B.V. Fertility, weight of calves at weaning, and the economic aspects of a breeding herd receiving mineral supplements containing 75 or 12.5 g of phosphorus (P)/kg were measured from 2013 to 2016. No differences in reproduction parameters or weight at weaning were found before and after the adoption of the new scheme of mineral supplementation. Before the study, the annual cost with the formula containing more P was equivalent to 29.3 weaned beef calves; after the P reduction, the annual cost was equivalent to 2.2 to 6.8 weaned calves. After 3 years of supplementation with 12.5 g P/kg no signs of P deficiency were observed. The clinical-nutritional diagnosis of the herd indicated no cause-effect of P content of mineral supplements upon fertility or performance of healthy cows, demonstranting that the adequate forage allowance was enough to meet most P required by the cows.

History

Volume

50

Issue

1

Start Page

205

End Page

208

Number of Pages

4

eISSN

1573-7438

ISSN

0049-4747

Location

United States

Publisher

Springer

Language

eng

Peer Reviewed

  • Yes

Open Access

  • No

Acceptance Date

2017-09-10

External Author Affiliations

DZO, DNAP, PPGZ, Brazil

Era Eligible

  • Yes

Medium

Print-Electronic

Journal

Tropical Animal Health and Production