Helminth fauna of sheep from the micro region of Jaboticabal, Sao Paulo State, Brazil/ Fauna helmintologica de ovinos provenientes da microrregiao de Jaboticabal, estado de Sao Paulo, Brasil

This study evaluated the prevalence and counting parasitism of different species of helminths of sheep from the micro region of Jaboticabal of Sao Paulo state. For this, 66 animals naturally infected, four to 36 months of age, raised in pasture, were selected. The results of necropsy revealed the presence of seven genera and 12 species with the following prevalence and mean count: Haemonchus contortus: 100.0% (2947.2); Trichostrongylus colubriformis: 90.9% (3048.8); Cooperia curticei: 56.0% (256.5); Oesophagostomum columbianum: 48.4% (36.0); Cooperia punctata: 30.3% (94.5); Trichostrongylus axei: 22.7% (26.5); Strongyloides papillosus: 19.6% (83.0), Haemonchus contortus (L4): 7.5% (17.2), Cooperia pectinata: 10.6% (12.9), Trichuris ovis: 10.6 % (0.6); Cooperia spatulata 4.5% (0.3); Capillaria bovis: 4.5% (0.1). The mean parasitism of helminthswas 6524.7 per animal. Haemonchus contortus (adults and L4) and Trichostrongylus colubriformis corresponded to 45.4% and 46.7% of the average worm burden totally, respectively. Based in the results obtained in this study, can be concluded that the two most abundant species of helminths and important, the micro-region of Jaboticabal are Trichostrongylus colubriformis and Haemonchus contortus, and these two species amounted to 92.1% of the distribution percentage of helminths collected from all animals. These results demonstrate the importance of conducting a counts of eggs per gram of feces (EPG) in the herds of this region when FAAMACHA is used on a particular property, since this method control does not allow to diagnostic the damage/ clinical signs in animals infected by T. colubriformis, because this specie does not have hematophagism habit on animals. Key words: FAMACHA, nematode, prevalence, helminths, sheep. Avaliou-se a prevalencia e a contagem parasitaria das diferentes especies de helmintos de ovinos pro-venientes da microrregiao de Jaboticabal, regiao Noroeste de Sao Paulo. Para tanto, foram utilizados 66 animais naturalmente infectados, de quatro a 36 meses de idade, criados em regime extensivo. Os resultados necroscopicos revelaram a presenca de sete generos e 12 especies, com a seguinte prevalencia e a media de parasitismo: Haemonchus contortus: 100,0% (2947,2); Trichostrongylus colubriformis: 90,9% (3048,8); Cooperia curticei: 56,0% (256,5); Oesophagostomum columbianum: 48,4% (36,0); Cooperia punctata: 30,3% (94,5); Trichostrongylus axei: 22,7%o (26,5); Strongyloides papillosus: 19,6% (83,0); Haemonchus