Effect of some management and feeding practices on milk yield of Holstein-Friesian, Gir and cross bred cows

Authors

  • Roberto Pedro Benintendi Instituto de Zootecnia, Estação Experimental de Zootecnia de Ribeirão Preto, SP
  • Luiz Martins Bonilha Neto Instituto de Zootecnia, Estação Experimental de Zootecnia de Sertãozinho, SP
  • Maria Armênia Ramalho de Freitas Instituto de Zootecnia, Estação Experimental de Zootecnia de Ribeirão Preto, SP
  • Vera Lúcia Cardoso Instituto de Zootecnia, Estação Experimental de Zootecnia de Ribeirão Preto, SP

Abstract

The main objective of this study, undertaken at the Estação Experimental de Zootecnia de Ribeirão Preto, SP was to evaluate the milk yield of several genetic groups of cows assigned to two of the following feeding and management practices (nested design): Treatment A: partial confinement; treatment 8: pasture + concentrate supplementation on rainy season and pasture + concentrate + roughage on dry season; treatment C: pasture on rainy season and the same as 8 on dry season. The cows were distributed into the treatments according to the following design: 1) Holstein cows (mostly red and white) within treatments A and B; 2) Gir and crossbred cows assigned each group into 8 and C. The milk yield averages and standard deviations were: Holstein cows: Treatment A - 2,7 10; 767 kg, treatment B - 2,272; 451 kg. Gir cows: treatment B - 1,574; 511 kg, treatment C - 1,526; 382 kg. Crossbred cows: treatment B - 2,403; 717 kg and treatment C - 2,064; 495 kg. The least squares analysis of variance showed a significant treatment effect within Holstein cows. Within Gir and crossbred cows there was no significant difference between treatments B and C.

Downloads

Download data is not yet available.

Published

2014-01-29

Issue

Section

ANIMAL NUTRITION

How to Cite

Effect of some management and feeding practices on milk yield of Holstein-Friesian, Gir and cross bred cows. (2014). Bulletin of Animal Husbandry, 45(1), 9-17. http://bia.iz.sp.gov.br/index.php/bia/article/view/700

Most read articles by the same author(s)

1 2 3 4 > >>