Performance of beef cattle females grazing under different feeding systems based on native pastures in southern Brazil

摘要：

In the Brazilian State of Rio Grande do Sul,most bovine females are bred for the first time at three years of age, while backgrounding of beef heifers is one of the most onerous phases of the productive cycle.In this phase a feeding system that explores to the maximum the herbage resources of the area,such as the native pasture,should be used to make possible a constant growth with live weight gain rates that allow the heifers to reach puberty with the smallest possible age.In this region, the natural grasslands are used to feed about 90％ of the beef cattle herd.

关键词： body condition score Brangus live weigh gain natural grassland improvement

作者: C.Nabinger T.C.M.Genro F.F.Cardoso M.G.Orqis M.M..Oliveira D.P.Montardo

作者单位: UFRGS,Av.Bento Goncalves,7712,91501-970,Porto Alegre,RS,Brazil Embrapa PecuáriaSul,Postal box 242,96401-970,Bagé,RS,Brazil UFPEL/FA EM Campus universitário,s.n°,96010-900,Pelotas,RS,Brazil

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）