| Registro completo |
| Provedor de dados: |
Ciência Rural
|
| País: |
Brazil
|
| Título: |
Beef heifers performance in natural grassland under continuous and rotational grazing in the autumn-winter
|
| Autores: |
Soares,Émerson Mendes
Quadros,Fernando Luiz Ferreira de
Carvalho,Régis Maximiliano Roos de
Oliveira,Leandro Bittencourt de
Jochims,Felipe
Dutra,Gabriela Machado
Fernandes,Augusto Miranda
Trindade,José Pedro Pereira
Ilha,Gustavo Freitas
|
| Data: |
2015-10-01
|
| Ano: |
2015
|
| Palavras-chave: |
Pampa biome
Reproductive tract score
Grazing methods
Heifers rearing
Sward height.
|
| Resumo: |
The aim of this study was to evaluate the performance of beef heifers in natural grassland under continuous and rotational grazing during the autumn-winter period. The treatments were distributed in a completely randomized design and conducted using the forage mass above eight cm and 50% of the leaf blades mass of tussocks. The animals were Brangus beef heifers with initial body weight of 258kg. The variables evaluated were available forage mass (FMa), leaf blades mass of tussocks (LBMt), real forage allowance (FAr), sward height of the lower stratum (HLS), crude protein (CP), neutral detergent fiber (NDF), organic matter digestibility (OMD), total digestible nutrients (TDN), average daily gain (ADG), body condition score (BCS), reproductive tract score (RTS) and stocking rate (SR). FMa, HLS, OMD and TDN decreased while FAr, CP and NDF were similar during the experimental period. The ADG was positive only at third experimental period while BCS, RTS and SR decreased over time. The natural grassland management under continuous and rotational grazing during the autumn-winter period, using the forage mass above 8cm and 50% of the leaf blades mass of tussocks, does not allow the adequate corporal development for breeding the beef heifers at 24 months old.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001859
|
| Editor: |
Universidade Federal de Santa Maria
|
| Relação: |
10.1590/0103-8478cr20141529
|
| Formato: |
text/html
|
| Fonte: |
Ciência Rural v.45 n.10 2015
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
