Efficacy of Monacrosporium thaumasium in the control of goat gastrointestinal helminthiasis in a semi-arid region of Brazil
Braga, Fabio Ribeiro | Araújo, Jackson Victor de | Vilela, Vinícius Longo Ribeiro | Feitosa, Thais Ferreira | Lucena, Samuel Cavalcante de | Dantas, Elaine Silva | Athayde, Ana Célia Rodrigues | Silva, Wilson Wouflan
The aim of the present study was to test a pellet formulation of Monacrosporium thaumasium in a sodium alginate matrix in the biological control of goat gastrointestinal helminthiasis in a semi-arid region of northeastern Brazil. An area of 2.4 ha was divided into three paddocks, with seven goats kept on each paddock, during the months of March to August 2011: group 1 received 3 g/10 kg live weight of M. thaumasium pellets (NF34a) twice a week; group 2 was given 0.2 mg/kg of 0.2 % moxidectin orally every 30 days; and group 3 received 3 g/10 kg live weight of pellets without fungus twice per week. Each month, two tracer goats was placed in each group for 30 days and then killed and necropsied. The M. thaumasium group showed a 34 % reduction in eggs per gram, higher packed cell volume rates and a lower parasitic load in the tracers compared with the other groups. The 0.2 % moxidectin group had weight gain of 5.7 kg; the M. thaumasium group, 3.6 kg; and the control group had an average reduction in weight of 1.1 kg. The use of M. thaumasium pellets may be effective as an alternative method to control goat gastrointestinal helminthiasis in the semi-arid region of northeastern Brazil.
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