Phyto-biotherapy to control gastrointestinal nematodes of sheep

The parasitic resistance and the tendency of recent years to shift to organic systems has resulted in several alternative animal management as the selection of resistant breeds, integration with other animal species, phytotherapy, nematophagous fungi, nematodes vaccines, among others. Looking for an alternative control of nematode parasites of sheep, this paper aimed to analyze the effect of administration of inactivated larvae of Haemonchus and fresh garlic on the level infection with gastrointestinal nematodes in naturally infected sheep. Therefore, 32 animals were monitored for 144 days after phyto-biotherapy treatments in relation to reduction of parasite eggs (egg reduction rate - FECR), these treatments under the genres of helminths and hematological changes. It was observed significant increase in the EPGs of G1 (control group) and G4 (fresh garlic). At the end of the experiment observed lower EPG in G3 (inactivated larvae + fresh garlic) compared to G1, but no difference between the EPG of the other groups. As for FECR, there was an average reduction of 44% in egg count in G2 (inactivated larvae) and G3 and an increase of 44% in G4. The effectiveness of the treatments under the genus Haemonchus ranged from 0 to 77%, the latter being rate observed in G3 in day 67, just 7 days after the significant increase of lymphocytes. It was concluded from this study that fresh garlic administered at 2.5 mg / kg concentration failed to reduce the parasite burden of sheep, but which, when associated with administration of inactivated larvae of Haemonchus may had contributed to immune stimulant and reduction of eggs eliminated in the faeces of sheep treated with inactivated larvae, though not enough to be considered an effective treatment, the study highlights the importance and use of vaccines to control this parasite.