Faecal nematode egg counts in Merino sheep following natural challenge
نویسندگان
چکیده
منابع مشابه
Overberg research projects. X. Faecal egg counts in the interpretation of nematode worm burdens in sheep.
Worm egg counts were compared with nematode worm burdens from data collected from greater than 400 sheep killed in experiments on the epidemiology of nematode parasites in the Overberg, in the winter rainfall area of the southern Cape Province. Data were analysed in several ways but no method could be found to accurately estimate the number of nematodes present from the faecal egg count in resp...
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Gastrointestinal parasite infections are a major cause of production losses in sheep in Australia (Sackett et al 2006). The control of gastrointestinal parasites needs to adopt a more strategic approach that involves the integrated employment of control measures that will reduce the reliance on anthelmintics and that will slow the development of anthelmintic resistance. Little attention has bee...
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Sheep from a Merino selection experiment at the Tygerhoek research farm in the Southern Cape provided material for this study. The selection lines involved included a line selected for clean fleece weight, a “Wet and Dry” line, a fine wool line and an unselected Control line. Rectal faeces samples were obtained from individual animals at 13 to 16 months of age, after drenching was withheld for ...
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Following on from our studies on the potential use of tannins to control intestinal parasites in small ruminants we recently conducted two further trials to investigate the effect of a wattle tannin oral drench (WT), or supplementation of the diet with acacia (AMS), on faecal egg counts (FEC) and worm burdens of growing tropical Black Head Persian (BHP) sheep with an experimental intestinal nem...
متن کاملEgg sizes and differential egg counts in relation to sheep nematodes.
Worm egg counts have been used for the assessment of nematode infections of sheep for many years. Different methods have been used, but recently the Stoll method (Stoll, 1930) and the McMaster Slide (Gordon & Whitlock, 1939) technique have almost entirely superseded the others. The McMaster technique is the best method, although it suffers from the slight disadvantage that eggs of Trichuris ovi...
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ژورنال
عنوان ژورنال: South African Journal of Animal Science
سال: 2000
ISSN: 2221-4062,0375-1589
DOI: 10.4314/sajas.v30i4.3893