Evaluation of feeding systems for calves weaned at three months old

Ciência Rural

Coelho Filho, Roblein Cristal²  Quadros, Fernando Luiz Ferreira de¹  Santos, Glênio Lopes dos² 

[1] Universidade Federal de Santa Maria, Santa Maria;Universidade Federal de Santa Maria

关键词: calves;    weaning;    feeding systems;    forrages;    natural pasture;    Bahiagrass;    oats ryegrass;    sorghum silage;   

DOI  :  10.1590/S0103-84781996000100024

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

A trial was conducted to evaluate lhe performance of calves weaned of three months old in four systems: S1 - Natural pasture + Sorghum bicolor silage; S2 - Natural pasture + Winter pasture (Avena strigosa + Lolium multiflorum); S3 - Bahiagrass (Paspalurn notatum var. Saurae) + Sorghum silage and S4 - Bahiagrass + Winter pasture. The experiment was installed in Pulquéria Agropecuária, São Sepé, RS, in a Ridish-Brown Latheritic Soil. It was evaluated the crude protein and in vitro organic matter digestibility of the forage. Thirty calves, Nelore x Charolais Breed, were used as replications, in a completely randomized design. with continuous grazing and variable stocking rate in the pastures. The experimental period was of 244 days (summer/autumn and winter/spring ). The calves were weighted at a 28 day intervals. S4 system presented a daily live weight gain (545g) higher than lhe others (P<0.05), except for the S2 system (475g), in the total experimental period.

【 授权许可】

CC BY-NC