seasonal fluctuations and hypobiosis of gastro-intestinal nematodes of awassi lambs in iraq.the results of an epidemiological study involving the estimation of worm counts of gastro-intestinal nematodes of lambs, during the period december 1978 to november 1979, in the baghdad area are reported. ostertagia spp. and trichostrongylus spp. were the most abundant nematodes in the weaned lambs used in this study. ostertagia spp. infection was present throughout the period of observation, the level of infection being the highest during early summer (may-june). trichostrongylus spp. infection ...19836856333
epidemiology of gastrointestinal parasites of awassi sheep in iraq.studies on the epidemiology of gastrointestinal nematodes of sheep, conducted at two different farms in the baghdad area, in 1979, revealed two peaks in worm egg counts in ewes, one in spring and the other in autumn; the latter coincided with the lambing season. similarly in lambs, two peaks of infection were apparent, but the spring peak was not so well defined. during the hot and dry summer months of iraq, helminthic infection was at a low level. faecal culture for larvae and their identificat ...19836683037
development and survival of haemonchus contortus larvae on pasture in iraq.the survival of haemonchus contortus infective larvae on pasture and soil was studied over a period of 12 months in the baghdad area. infective larvae were found on herbage and soil at all times except in the summer months. during autumn and winter infective larvae in pasture survived for periods of up to 32 weeks. little larval migration into soil was observed during this study and larvae did not survive for long in the faecal pellets during the summer.19873629723
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