Data/hora: 06/06/2024 00:20:48

Provedor de dados: | 65
País: | Brazil
Título: | Control of bovine gastrointestinal nematode parasites using pellets of the nematode-trapping fungus Monacrosporium thaumasium
Autores: | Araújo,Jackson Victor de; Guimarães,Marcos Pezzi; Campos,Artur Kanadani; Sá,Nilo Chaves de; Sarti,Priscilla; Assis,Rafaela Carolina Lopes.
Data: | 2004-04-01
Ano: | 2004
Palavras-chave: | Biological control; Monacrosporium thaumasium; Nematodes; Nematophagous fungi; Pellets; Bovine.
Resumo: | The viability of a formulation of the fungus Monacrosporium thaumasium associated with ivermectin was evaluated for the biological control of bovine gastrointestinal nematode parasites. Four groups of five calves each were placed in pastures with a stocking rate of 1.6 animal/hectare. In group 1 (control), the calves did not receive any treatment. In group 2, each animal received 20g of pellets of M. thaumasium orally twice a week during a six-month period that began with the onset of the rainy season (October 23, 2000). In group 3, each animal received 20g of pellets of M. thaumasium orally twice a week during the same period as 2, as well as two strategic treatments with ivermectin (200 mcg/kg) on May 10, 2001 and July 5, 2001. In group 4, the animals were treated with ivermectin alone as described for group 3. EPG counts for group 1 were significantly greater (P&lt; 0.01) than those for groups 2 and 3 and the difference at the end of the study period was near 100%. The EPGs of group 4 animals remained high until the first strategic treatment with ivermectin. Values for groups 1 and 4 differed significantly (P&lt; 0.05) from those of groups 2 and 3 from December 2000 onwards. It was concluded that the use of this dose and periodicity of application of M. thaumasium pellets makes the application of anthelminthic treatments unnecessary.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000200019
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782004000200019
Formato: | text/html
Fonte: | Ciência Rural  v.34 n.2 2004
Fonte: | info:eu-repo/semantics/openAccess