Sheep production as a Senecio spp. control tool

Pesquisa Veterinária Brasileira

Paulo Mota Bandarra²  Luiz Gustavo De Oliveira²  André Cabrera Dalto²  Fabiana Marques Boabaid²  Gregory Juffo²  Franklin Riet-correa¹  David Driemeier²  Cláudio Estêvão Farias Da Cruz² 

[1] ,Universidade Federal do Rio Grande do Sul Faculdade de Veterinária Departamento de Patologia Clínica VeterináriaPorto Alegre RS ,Brazil

关键词: Senecio brasiliensis;    Senecio madagascariensis;    control;    sheep grazing;    sheep performance;    Senecio brasiliensis;    Senecio madagascariensis;    controle;    pastejo;    desempenho;    ovinos;   

DOI  :  10.1590/S0100-736X2012001000013

来源: SciELO

【 摘 要 】

Since poisoning by Senecio spp. is one of the main causes of cattle death in southern Brazil, control of these plants is a priority for the local livestock production. After the pasture has been mowed, grazing by 16 sheep was efficient for controlling Senecio brasiliensis and Senecio madagascariensis populations in a 5.5-hectare area that had long been severely infested with these species. A total of 28,629 plants among S. brasiliensis (flower-of-souls, 10,122) and S.madagascariensis (fireweed, 18,507) were almost completely eliminated in a two-year period. The number of sheep was kept at 3.0 stock units/ha, but a variable number of cattle were temporarily stocked according to pasture availability. The major sanitary practice applied to the sheep was anthelmintic administration. Liver biopsies taken from sheep and cattle before and after experimental period didn't reveal any change associable with seneciosis. The performance levels of the sheep were comparable to those observed in flocks managed under traditional extensive grazing systems in southern Brazil.

【 授权许可】

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