Influence of anthelmintic treatment on the liveweight of outwintered ewe hoggs.
Three systems of outwintering ewe hoggs are normally practised on Scottish hill farms. A series of field trials involving some 2000 different animals was conducted to determine the response in liveweight from anthelmintic treatment for roundworms. The results suggest that, under field conditions, a strategic dosing programme using a modern anthelmintic can prevent liveweight loss in ewe hoggs wintered either on the hill or "inbye". The best response may be expected from a two dose regime--one in early winter (mid October to mid November) and the other in winter (mid January to mid February). In away-wintered hoggs, the kinder climate, better pssture, and, in the vast majority of cases, less contaminated ground, appear to outweigh the advantages of dosing after the late autumn.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use*; D001835:Body Weight; D005260:Female; D009349:Nematode Infections / Q000517:prevention & control / Q000662:veterinary*; D012621:Seasons; D012756:Sheep / Q000254:growth & development*; D012757:Sheep Diseases / Q000517:prevention & control*; D013773:Tetramisole / Q000008:administration & dosage / Q000627:therapeutic use
D000871:Anthelmintics; D013773:Tetramisole