Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle
Carregando...
Data
2015
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The present work aimed to evaluate, through ten
different studies, the therapeutic efficacy of a new
pour-on formulation, containing 1.5 per cent
ivermectin +0.5 per cent abamectin, against parasites
of cattle. Results obtained on trials against
Rhipicephalus (Boophilus) microplus showed that the
pour-on combination of 1.5 per cent ivermectin +0.5
per cent abamectin obtained superior efficacy
indexes against this ectoparasite, when compared
with formulations containing 0.5 per cent ivermectin,
1 per cent ivermectin and the combination of 1 per
cent abamectin +20 per cent levamisole. The results
of efficacy of the ivermectin+abamectin and the 0.5
per cent ivermectin against Haematobia irritans were
similar. Against Cochliomyia hominivorax larvae, all
pour-on formulations tested (1.5 per cent ivermectin
+0.5 per cent abamectin, 0.5 per cent ivermectin and
0.5 per cent abamectin), as well as 1 per cent
doramectin administered subcutaneously, were
considered ineffective. Cattle medicated with 1.5 per
cent ivermectin +0.5 per cent abamectin, pour-on,
remained free from parasitism by Dermatobia
hominis larvae during 42 days (96 per cent efficacy),
while values superior to 90 per cent were obtained
by 0.5 per cent ivermectin (92 per cent) and 0.5 per
cent abamectin (93 per cent) until the 42nd and 35th
days post treatment, respectively. Against
Haemonchus placei and Oesophagostomum
radiatum, the pour-on of ivermectin+abamectin
showed better efficacy than the 0.5 per cent
ivermectin and 0.5 per cent abamectin. As to
Cooperia punctata, there was no difference regarding
efficacy results obtained by the avermectins
combination and abamectin. The pour-on
combination of 1.5 per cent ivermectin +0.5 per cent
abamectin obtained high efficacy against
R. (B.) microplus, D. hominis and some species of
cattle gastrointestinal helminths when compared
with formulations of 0.5 per cent ivermectin and
0.5 per cent abamectin administered through the
same route.
Descrição
Palavras-chave
Citação
SILVA, Heloisa Cristina; PRETTE, Nancy; LOPES, Welber Daniel Zanetti; SAKAMOTO, Cláudio Alessandro Massamitsu; BUZZULINI, Carolina; SANTOS, Thais Rabelo dos; CRUZ, Breno Cayeiro; TEIXEIRA, Weslen Fabrício Pires; FELIPPELLI, Gustavo; CARVALHO, Rafael Silveira; MACIEL, Willian Giquelin; SOARES, Vando Edésio; COSTA, Alvimar José da. Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle. Veterinary Record Open, London, v. 2, e000072, 2015.