Desmame precoce e a suplementação com alimentos concentrados de cordeiros e seu efeito sobre as características morfológicas da pastagem e o consumo de forragem

• Autor(a) principal: Silva, Marina Gabriela Berchiol da [UNESP]
• Data de Publicação: 2012
• Outros Autores: Monteiro, Alda Lúcia Gomes, Fernandes, Sergio Rodrigo, Silva, Cláudio José Araújo da, Cruz, Thiago Augusto, Salgado, Jordana Andrioli, Kowalski, Luciana Helena, Costa, Ciniro [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.fmv.ulisboa.pt/spcv/edicao/6_2012/57-62.htm; http://hdl.handle.net/11449/141023
• topic: Concentrate supplements; Leaf: stem ratio; Nursing; Tifton-85; Aleitamento; Relação folha:colmo; Suplemento concentrado; Tifton-85

The characteristics of the pasture and their relation to forage intake determine the responses in animal performance in finishing systems on pasture. The objective of this study was to evaluate early weaning and concentrate supplementation effects on the characteristics of the pasture and forage intake in pasture of Tifton-85 (Cynodon spp.). A randomized block design was used with four treatments, three replications and five lambs per replicate test. A total of 60 Suffolk lambs, with 36 females and 24 males were used. The treatments corresponded to the combinations between early weaning and concentrate supplementation strategies, which resulted in the following finishing systems: 1) lambs kept with mothers without supplementation; 2) lambs kept with mothers supplemented with concentrate in creep feeding at 45 ± 5 days; 3) weaned lambs at 45 ± 5 days without supplementation and 4) weaned lambs at 45 ± 5 days and supplemented with concentrate. Weaning influenced the morphological characteristics of the pasture, such as the stem mass. The results of forage intake assessment indicated that weaning affects the variables that describe the process of grazing, except for bite mass and speed of intake. It is concluded that the finishing of early weaned lambs in pasture causes changes in the characteristics of the pasture, may limit forage intake and consequently animal performance.