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A total of 10 calves averaging 133 kg liveweight and naturally infected with gastrointestinal nematodes were grazed in three lucerne pastures, at a stocking rate of 3 animals/ha, from February to June 2006. Animals received either (a) no treatment (controls); (b) 200 µg/kg invermectin...

Cristel, S. L.; Suárez, V. H.; Gavella, J. O.
Estación Experimental Regional Agropecuaria Anguil (INTA) (EEA), Secretaría de Agricultura, Ganadería y Pesca, Anguil, Argentina
Boletín de Divulgación Técnica, INTA, 2008, No.94, pp 88-90