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The negative effects of nematodes in small ruminants can be reduced by use of dewormers but their effectiveness is increasingly limited by the emergence of anthelmintic resistance. The efficacy of benzimidazole (BZ) anthelmintics in the Philippines was estimated by an in vitro larval development...


Ancheta, P.B.Dumilon, R.A.Venturina, V.M.Cerbito, W.A.Dobson, R.J.LeJambre, L.F.Villar, E.C.Gray, G.D.[Efficacy of benzimidazole anthelmintics in goats and sheep in the Philippines using a larval development assay]Efficacy of benzimidazole anthelmintics in goats and sheep in the Philippines using a larval development assay

The paper starts with a description of parasites of small ruminants in the Philippines. It then discusses host-parasite relationships and worm control options; looks into worm control programs; and examines impact of helminths on production. It then discusses anthelmintic plants and biological co...


Gray, G.D.Yee, C.A.T.Villar, E.C.[Worm control for small ruminants in the Philippines]Worm control for small ruminants in the Philippines

In the Philippines, management of grazing flock like rotational grazing is not being done as a parasite control, but to improve the condition of the pasture and the nutritional status of the animals. Posas (1981) compared goat production and impact of soil, pasture, and coconut production. Rotati...


Cruz, E.M.Barcelo, P.M.Ancheta, P.B.Fontanilla, P.Camalia, F.M.Ancheta, V.G.Gray, G.D.Villar, E.C.[Rapid rotational grazing as best-bet option to control endoparasites]Rapid rotational grazing as best-bet option to control endoparasites

There have been numerous Reports of resistance to anthelmintics in Southeast Asia, from Malaysia (Rahman, 1994), Thailand (Kochapakdee et al., 1995) and Indonesia (Dorny et al., 1995). In the Philippines, benzimidazole resistance in a field population of Haemonchus contortus from sheep has been d...


Ancheta, P.B.Dumilon, R.A.Gray, G.D.Villar, E.C.Cerbito, W.A.Ancheta, F.G.[Resistance to benzimidazole anthelmintics in Philippine goats and sheep]Resistance to benzimidazole anthelmintics in Philippine goats and sheep

Presents the objective of the programme, viz., to implement currently available options for nematode control including rotational grazing systems and identification of effective dewormers. Preliminary results on these are presented here. Research on the identification of resistants genotypes is i...


Gray, G.D.Ancheta, P.A.Arguzon, J.A.Barcelo, P.M.Casis, C.Cerbito, W.A.Dobson, R.J.Dumilon, R.Cruz, E.M.Knox, M.R.LeJambre, L.F.Mateo, K.S.Suba, M.S.Villar, E.C.[Better worm control for goats and sheep in the Philippines]Better worm control for goats and sheep in the Philippines

One of the alternative control strategies being advocated by scientists and goats raisers is the identification of breeds of goats that are resistant specifically to endoparasites that commonly affect existing breeds and exotic genotypes. Due to the Reported large genetic variation existing among...


Suba, M.S.Reyes, R.O.Gray, G.D.Villar, E.C.[Identifying small ruminant genotypes that are resistant to endoparasites]Identifying small ruminant genotypes that are resistant to endoparasites

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