Nutritional, behavioral and performance parameters of F1 Holstein x Zebu cows at different lactation stages

Authors :: V. R. Rocha Júnior
Marcos Felipe Pereira da Silva
Pedro Felipe Santana
M. D. Costa
Joyce Cipriana Pacheco Ramos
Cinara da Cunha Siqueira Carvalho
Fernanda Ferreira da Hora
Flávio Pinto Monção
Eleuza Clarete Junqueira de Sales
Luana Alcântara Borges
M. C. Oliveira
José Reinaldo Mendes Ruas
Source :: Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 72, Iss 4, Pp 1469-1478 (2020), Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Volume: 72, Issue: 4, Pages: 1469-1478, Published: 14 AUG 2020, Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.72 n.4 2020, Arquivo brasileiro de medicina veterinária e zootecnia, Universidade Federal de Minas Gerais (UFMG), instacron:UFMG
Publication Year :: 2020
Publisher :: Universidade Federal de Minas Gerais, 2020.
Abstract: The objective of this study was to evaluate the different lactation stages of F1 Holstein x Zebu cows on intake and digestibility of nutrients, nitrogen use efficiency, feeding behavior and performance. Thirty-six F1 Holstein × Zebu cows with initial body weight (BW) of 482±43kg were used. The early, mid and late lactation stages were characterized after 50±13, 111.5±11.75 and 183.0±17.5 days in milk, respectively. A completely randomized design with three lactation stages and 12 cows in each treatment group was used. Dry matter intake (P=0.01) was higher in late lactation. Milk yield (P

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