Nutritional, behavioral and performance parameters of F1 Holstein x Zebu cows at different lactation stages
| Autor: | 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 |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nitrogen balance
feeding behavior Biology nitrogen balance Feed conversion ratio Crossbreed SF1-1100 Animal science produção diária de leite Lactation medicine Dry matter Dairy cattle Completely randomized design cruzamento balanço de nitrogênio General Veterinary gado leiteiro 0402 animal and dairy science dairy cattle food and beverages 04 agricultural and veterinary sciences Zebu 040201 dairy & animal science Animal culture medicine.anatomical_structure 040103 agronomy & agriculture 0401 agriculture forestry and fisheries crossbreeding comportamento ingestivo daily milk yield |
| Zdroj: | 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 |
| ISSN: | 1678-4162 |
| Popis: | 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 |
| Databáze: | OpenAIRE |
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