Abstract
A survey of one hundred guts 50 each from sheep and goats was conducted between July to October„ IC186. The incidence of various species of the gastro-intestinal nematodes was found to be 72 ancl 54 in sheep and goats respectively. The following species were ideniified Haernonchus conirotu_y, Osiertagia rircurneineta, Osterfagia aster/fly/. Bunoslorium trigoriocepiralurn, Cooperia eurticei. Oesophagoilornwn vertuloatim, Triciarris aids and Chaberria Drina, Taxonomy of the species of the genus Haemonchu.s was also studied, INTRODUCTION Sheep and goats harbour a wide variety of helminths which cause clinical and sub-olinical. parasitism. Heavy infestahogs adversely effect the health and production of the animals resulting into loss in body weight, decreased feed consumption, reduced growth rate, delayed maturity, poor body conditions, genera/ unthriftiness and anaemia, etc. The average blood loss due to Haemon,- chus spp, has been calculated. at 0.05 rallparasite/day Clark: et at, 1962). The present study was undertaken to record complete information regarding the occurrence of various species of nematodes inhabiting the gastro-intestinal tract and to study the taxonomy of the species of the genus Themonchiris in sheep and goats. MATERIAL AND METHODS One hundred guts {PQ each of sheep and goats) were collected from abatt-oir of Lahore Municipal corporation in polythene bags. The guts were incised and the contents examined by employing sedimentation and seiving methods as described by Morgan and Hawkins 0960). The nematodes were preserved in AFA fixative, For making whole mounts, the glycerol-melbanol method

Abid Naseem, Asif Rabbani, Mubashar Saeed . (1987) Study of gastro-intestinal nematodes and taxonomy of the species of Haemonchus in sheep and goats, , Volume 24, Issue 4.
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