Lactation curve in Alpine and crossbred Boer goats at a pasture system production with and without concentrate supplementation

Authors

  • Luciana Rodrigues Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção Animal, Botucatu, SP
  • Heraldo César Gonçalves Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção Animal, Botucatu, SP
  • Gil Inácio Lara Cañizares Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Maurício Furlan Martins Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Raquel Ornelas Marques Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Marcela Silva Ribeiro Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção Animal, Botucatu, SP

Keywords:

dairy goats, forage, milk production

Abstract

Fifty goats were used (30 Alpine and 20 ½ Boer + ½ Alpine), primiparous and multiparous, with average body weight of 52.7 ± 1.07 kg, evaluated averaging to 203.9 ± 8.04 lactation days. Were tested two pasture production systems: SP1 - with concentrate supplementation and SP2 - without concentrate supplementation. Animals were kept in pasture established with Panicum maximum cv. Tanzania. Milk control was performed every 14 days, by weighting milk. It was calculated some variables: time to reach peak, production at peak (PP), milk production on t time and persistence (PS). Genotype and pasture production system influenced the lactation curve. Concentrate supplementation of Alpine goats resulted in longer time to reach peak of lactation, higher PP and PS. Alpine goats, on pasture production system should be supplemented with concentrate.

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Published

2010-01-13

Issue

Section

ANIMAL NUTRITION

How to Cite

Lactation curve in Alpine and crossbred Boer goats at a pasture system production with and without concentrate supplementation. (2010). Bulletin of Animal Husbandry, 67(1), 57-63. http://bia.iz.sp.gov.br/index.php/bia/article/view/1087

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