Supplementation of beef cattle as strategy of pasture management

Revista Brasileira de Zootecnia

Páscoa, Adriano Gomes¹  Ruggieri, Ana Cláudia¹  Reis, Ricardo Andrade¹  Casagrande, Daniel Rume¹ 

[1] UNESP, Jaboticabal

关键词: chemical composition;    digestibility;    grazing;    management;    pasture;    supplements     IntroduçãoA partir da década de 90 profundas alterações tem ocorrido no cenário mundial da pecuária de corte associada à abertura e a globalização do mercado;   

DOI  :  10.1590/S1516-35982009001300016

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The grazing management system based on the intensive pasture utilization result in a high animal and area yield. In order to that to be possible, it should be used a management criteria aiming to control, simultaneously the quality and the amount of forage, maintaining the sustainability of the system. The grazing intensity is dynamic, it never keeps the same status, it can be changed with the animals rate intake, and also by the plants growth, changing every hour and day, due to that, it should be controlled systematically. In this scenery, the forage intake is the main factor which explains the variations in the animal performance in relation to the forage quality. Energy and protein supplementations of the grazing animals increase performance, reducing slaughter and the first birth age. However, the nutritional characteristics of the supplement should vary in function of the amount and quality of the forage allowed. Pastures grazed by supplemented animals can be managed at a lower height, compared to those grazed by animals supplemented with only mineral salt, without reducing the tillers population density. These management strategies can reduce the probability of future pasture degradation. Thus, supplementation of the diet of the grazing animals can increase the pasture carrying capacity.

【 授权许可】

CC BY-NC