Data/hora: 16/06/2024 07:56:41

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 26/01/2015
Data da última atualização: | 05/02/2024
Autoria: | CARVALHO, C. A. B. de; PERES, A. A. C.; PREMAZZI, L. M.; MALAFAIA, P.; CARVALHO, M. I. A. B.; PACIULLO, D. S. C.; COSTA, V. A. C.
Afiliação: | CARLOS AUGUSTO B. DE CARVALHO, UFRRJ; AFONSO A. C. PERES, UFF; LINDA MONICA PREMAZZI, APTA; PEDRO MALAFAIA, UFRRJ; MARIA INÊS A. B. CARVALHO, APTA; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; VIVIANE A. CARLI COSTA.
Título: | Performance of dairy heifers raised on Xaraés palissadgrass (Brachiaria brizantha cv. Xaraés) pasture supplemented with two types of mineral mixture.
Ano de publicação: | 2014
Fonte/Imprenta: | Pesquisa Veterinaria Brasileira, v. 34, n. 1, p. 46-50, 2014.
Idioma: | Inglês
Conteúdo: | The effects of selective (e.g. mineral supplement formulated on the basis of nutritional and clinical examination of the herd) or commercial mineral supplementation of crossbred dairy heifers (Holstein-Mantiqueira), on daily weight gain (DWG), body condition score (BCS), age at first mating (AFM) and the intake of mineral mixture (IMM) managed on Xaraés palissadgrass pasture (Brachiaria brizantha cv. Xaraés) were evaluated from February 2006 to March 2008. Structural characteristics, forage allowance and nutritional value of Xaraés palissadgrass were also evaluated. The structural variables of pasture, allowances and nutritive value of forage, besides the DWG were only affected (p<0.05) by season, with highest results for spring and summer. Throughout the experimental period (730 days), no sign of mineral deficiency was detected in heifers that ingested the selective supplement. The DWG and AFM were not influenced by the mineral mixture offered (0.52 and 0.33 kg/day during the spring/summer and in fall/winter for DWG, respectively, and 813 days of AFM). The IMM was higher for commercial mineral mixture than for selective (61.6 and 51.0g/day respectively). The BCS was slightly higher for selective (3.17) than for the commercial (3.02) mineral mixture. Thus, the selective mineral supplement was a strategy to prevent mineral deficiency in this herd and resulted in similar performance at lower costs (e.g. due to less IMM) of crossbred heifers when compared with the commercial mineral supplementation.
Palavras-Chave: | Forage allowance; Mineral mixture intake; Palissadgrass; Selective mineral supplementation.
Thesaurus Nal: | dairy heifers.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/116501/1/Cnpgl-2014-Pesquisa-Vet-Bras-Performance-of-dairy-heifers.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (21627-1) - UPC - AP - DD -  -  -  - DIS