Effect of a new long life formulation of ivermectin plus abamectin against gastrointestinal nematodes and the difference in weight gain in bovines
Por:
Romero, HQ, Martinez, BC, Suarez, AH, Galvan, PO, Perez, JC, Mendoza, IC
Publicada:
1 abr 2009
Categoría:
Veterinary (miscellaneous)
Resumen:
With the aim to evaluate the effect of ivermectin 2.25% + abamectin 1.25% in the reduction of gastrointestinal nematodes eggs per gram (epg) and the weight gain in bovines in 90 days, twenty four Santa Gertrudis breed, weaned calves localized in a ranch in Malpaso, Tecpatan municipality, Chiapas, Mexico, with a warm humid climate, were used. The calves were in extensive grazing on African Star and native grasslands. They were naturally infected with gastrointestinal nematodes (GIN), and were weighed on day-3. According to the individual weight and the egg count, two groups of 12 animals each, were integrated, without statistical difference in the weight and the average of epg, above of 700 eggs (P < 0.05). Group I was treated with one formulation of ivermectin at 2.25% + abamectina at 1.25%, in doses of 700 mcg/kg corresponding to 1 mL per 50 kg, by subcutaneous via. Group 2 was the control without anthelminthic treatment. Coprological examination was done at -3, 10, 45 and 90 days, mo
Filiaciones:
Romero, HQ:
Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecnia, Dept Parasitol, Mexico City 04510, DF, Mexico
Martinez, BC:
Intervet Mexico SA, Huixquilucan 52760, Estado Mexico, Mexico
Suarez, AH:
Intervet Mexico SA, Huixquilucan 52760, Estado Mexico, Mexico
Galvan, PO:
Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecnia, Dept Genet & Bioestadist, Mexico City 04510, DF, Mexico
Perez, JC:
Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecnia, Dept Parasitol, Mexico City 04510, DF, Mexico
Mendoza, IC:
Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecnia, Dept Parasitol, Mexico City 04510, DF, Mexico
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