Desempenho de bezerras de corte em pastagem de azevém recebendo farelo de arroz com ou sem monensina

• Autor(a) principal: Biscaíno, Ludmila Leonardi
• Data de Publicação: 2013
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Manancial - Repositório Digital da UFSM
• dARK ID: ark:/26339/0013000014q1r
• Texto Completo: http://repositorio.ufsm.br/handle/1/10816
• topic: Ionóforo; Lolium multiflorum Lam.; Suplementação energética.; Energetic supplementation; Ionophore; Lolium multiflorum Lam.; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA

The productive and reproductive performance of beef heifers grazing Italian ryegrass (Lolium multiflorum Lam) were studied with animals exclusively on pasture or receiving 0.8% of body weight of rice bran plus monensin or not. The rice bran was given daily at 2 pm and the monensin was provided in the amount of 200mg per animal. The grazing method was continuous with variable number of animals. The experimental design was completely randomized with repeated measures on time, three treatments and three area replicates. The beef heifers were submitted to average values of forage mass (1490.0±134.9kg ha-1 MS) and sward height (10±0.68cm). Beef heifers supplemented with rice bran plus monensin or not had higher daily gain, weight body, body condition score and body weight:height ratio. Beef heifers receiving rice bran with or without ionophore in 112 days of grazing gain 28% of body weight in relation to adult weight. The supplementation with rice bran to grazing animals no change in pelvic area, stocking rate and area weight gain.