Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102245
Research center of Embrapa/Collection: Embrapa Gado de Leite - Artigo em periódico indexado (ALICE)
Date Issued: 2018
Type of Material: Artigo em periódico indexado (ALICE)
Authors: OLIVEIRA FILHO, C. A. A.
MACHADO, F. S.
FERREIRA, A. L.
TOMICH, T. R.
MAURÍCIO, R. M.
CAMPOS, M. M.
SILVA, C. F. P. G. da
AZEVÊDO, J. A. G. de
PEREIRA, L. G. R.
Additional Information: Carlos Alberto Alves Oliveira Filho, Universidade Estadual do Sudoeste da Bahia; FERNANDA SAMARINI MACHADO, CNPGL; Alexandre Lima Ferreira, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; Rogério Martins Maurício, Universidade Federal de São João del-Rei; MARIANA MAGALHAES CAMPOS, CNPGL; Camilla Flávia Portela Gomes da Silva, Instituto Federal de Educação/Ciência e Tecnologia Baiano; José Augusto Gomes de Azevêdo, Universidade Estadual de Santa Cruz; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL.
Title: Nutritional plans on the intake, digestibility, and performance of dairy heifers of different breed compositions.
Publisher: Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 2, p. 247-255, fev. 2018
Language: en
Notes: Título em português: Planos alimentares no consumo, na digestibilidade e no desempenho de novilhas leiteiras de distintos grupos raciais.
Keywords: Balanço de nitrogênio
Description: The objective of this work was to evaluate the effects of nutritional plans and breed composition on nutrient intake and digestibility, nitrogen balance, and performance of dairy heifers in tropical conditions. Thirty-six heifers - 12 Holstein, 12 Gyr, and 12 Gyrolando F1 (½ Holstein × ½ Gyr) - were housed in a tie-stall system and randomly distributed, adopting a completely randomized design in a 3×3 factorial arrangement (nutritional plans and breed composition). The diets were formulated to enable weight gains of 200, 400, and 800 g per day, corresponding to the nutritional plans 11, 14, and 19 g kg-1 body weight (BW), respectively. The intake of dry matter, fibrous fractions (g kg-1 BW-0.75), and metabolizable energy (kcal-1 BW-0.75) in the 11-g kg-1 plan were greater for Gyr heifers than for Gyrolando and Holstein heifers. Ether extract digestibility was 13.85% higher for Gyr heifers compared with Gyrolando F1 in the 19-g kg-1 plan. The increase in the nutritional plans shows a quadratic response to nutrient intake and a linear response to average daily gain, but does not affect the digestibility coefficients. Gyr and Gyrolando F1 heifers present similar nutritional efficiency to that of Holstein heifers.
Thesagro: Ingestão
Ganho de peso
Gir leiteiro
NAL Thesaurus: Nitrogen
Ingestion
Nitrogen balance
Weight gain
Girolando
Data Created: 2018-12-20
Appears in Collections:Artigo em periódico indexado (CNPGL)

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