<b>Methods to determine forage intake by lambs on Italian ryegrass

  • Aline Tatiane Nunes da Rosa Universidade Federal de Santa Maria
  • Marta Gomes da Rocha Universidade Federal de Santa Maria
  • Luciana Pötter Universidade Federal de Santa Maria
  • Larissa Arnhold Graminho Universidade Federal de Santa Maria
  • Tuani Lopes Bergoli Universidade Federal de Santa Maria
  • Paulo Henrique Moterle Universidade Federal de Santa Maria
Palavras-chave: Lolium multiflorum Lam., fecal nitrogen, lambs, chromium oxide, intermittent grazing.

Resumo

This study was conducted to evaluate the use of chromium oxide and the content of fecal nitrogen to estimate forage intake by female lambs on Italian ryegrass pasture. The pasture was managed under different forage allowances (FA): 6, 9 and 12% BW. The experiment was a randomized split-split plot design, in which the forage allowances were considered as main plots, the phenological stages as subplots and methods to determine intake as sub-subplots. Forage intake, in the ryegrass vegetative stage, is independent of forage allowance. Lower allowances limit forage intake from the pre-flowering stage, while at the reproductive stage, intake was lower in FA6, intermediate in FA9 and higher in FA12. The estimation of organic matter intake by lambs on Italian ryegrass is similar when chromium oxide and fecal nitrogen are used as markers. The forage intake according to forage allowances depends on the sward structure and is limited by high stem mass at the end of the phenological cycle.

 

Downloads

Não há dados estatísticos.

Biografia do Autor

Aline Tatiane Nunes da Rosa, Universidade Federal de Santa Maria
Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil
Marta Gomes da Rocha, Universidade Federal de Santa Maria
Departamento de Zootecnia, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil.
Luciana Pötter, Universidade Federal de Santa Maria
Departamento de Zootecnia, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil.
Larissa Arnhold Graminho, Universidade Federal de Santa Maria
Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil
Tuani Lopes Bergoli, Universidade Federal de Santa Maria
Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil
Paulo Henrique Moterle, Universidade Federal de Santa Maria
Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brasil
Publicado
2015-10-01
Como Citar
Rosa, A. T. N. da, Rocha, M. G. da, Pötter, L., Graminho, L. A., Bergoli, T. L., & Moterle, P. H. (2015). <b&gt;Methods to determine forage intake by lambs on Italian ryegrass. Acta Scientiarum. Animal Sciences, 37(4), 365-371. https://doi.org/10.4025/actascianimsci.v37i4.28051
Seção
Forragicultura

0.9
2019CiteScore
 
 
29th percentile
Powered by  Scopus