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

Boletim de Indústria Animal

Raquel Ornelas Marques¹  Maurício Furlan Martins¹  Gil Inácio Lara Cañizares¹  Heraldo César Gonçalves²  Luciana Rodrigues²  Marcela Silva Ribeiro² 

[1] Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP;Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produção Animal, Botucatu, SP;

关键词: caprinos;    forragem;    produção de leite;   

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown