The Journal of Agricultural Science

Table of Contents - 1982 - Volume 98, Issue 02  

Research Article

The effect of three levels of intake of Ostertagia Circumcincta Larvae on growth rate, food intake and body composition of growing lambs

R. L. Coopa1, A. R. Sykesa1 p1 and K. W. Angusa1

a1 Moredun Research Institute, Edinburgh, Scotland

Abstract

Forty-eight 4-month-old lambs, reared worm-free from birth, were allocated to six groups and offered ad libitum a complete diet containing 139 g crude protein/kg D.M. One group was killed at the outset as initial control (CI). Further groups, ALC, 1, 2, 3 and 4 were dosed daily for 84 days with zero, 1000, 3000, 5000 and 5000 larvae of Ostertagia circumcincta, respectively. Lambs in group 4 also received anthelmintic (fenbendazole, 5 mg/kg) on days 21, 42, 63 and 84. Lambs were killed after 98 days and their carcasses and those of the initial controls analysed for fat, protein and mineral contents.

(Received July 06 1981)

Correspondence:

p1 Present address: Department of Animal Science, Lincoln College, Canterbury, New Zealand

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