Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-05-18T20:04:45.310Z Has data issue: false hasContentIssue false

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

Published online by Cambridge University Press:  27 March 2009

R. L. Coop
Affiliation:
Moredun Research Institute, Edinburgh, Scotland
A. R. Sykes
Affiliation:
Moredun Research Institute, Edinburgh, Scotland
K. W. Angus
Affiliation:
Moredun Research Institute, Edinburgh, Scotland

Summary

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.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Blaxter, K. L. & Rook, J. A. F. (1953). The heat of combustion of the tissues of cattle in relation to their chemical composition. British Journal of Nutrition 7, 8391.CrossRefGoogle ScholarPubMed
Boag, B. & Thomas, R. J. (1973). Epidemiologioal studies on gastrointestinal nematode parasites of sheep. The control of infection in lambs on clean pasture. Research in Veterinary Science 14, 1120.CrossRefGoogle ScholarPubMed
Brunsdon, R. V. (1976). Responses to the anthelmintic treatment of lambs at weaning: the relative importance of various sources of contamination in trichostrongyle infections. New Zealand Journal of Experimental Agriculture 4, 275279.CrossRefGoogle Scholar
Christie, M. G., Angus, K. W. & Hotson, I. K. (1975). Manifestations of resistance to Haemonchus contortus in sheep: worm populations and abomasal changes in sheep superinfected with 1,000,000 larvae of H. contortus. International Journal for Parasitology 5, 193198.CrossRefGoogle Scholar
Coop, R. L., Angus, K. W. & Sykes, A. R. (1979). Chronic infection with Trichostrongylus vitrinus in sheep. Pathological changes in the small intestine. Research in Veterinary Science 26, 363371.CrossRefGoogle ScholarPubMed
Coop, R. L., Sykes, A. R. & Angus, K. W. (1977). The effect of a daily intake of Ostertagia circumcincta larvae on bodyweight, food intake and concentration of serum constituents in sheep. Research in Veterinary Science 23, 7683.CrossRefGoogle Scholar
Gibson, T. E. & Parfitt, J. W. (1976). The effect of anthelmintic treatment on the development of resistance to Ostertagia circumcincta in sheep. Journal of Comparative Pathology 86, 547555.CrossRefGoogle ScholarPubMed
Jackson, F. (1974). New technique for obtaining nematode ova from sheep faeces. Laboratory Practice 23, 6566.Google ScholarPubMed
Rowell, J. G. & Walters, D. E. (1976). Analysing data with repeated observations on each experimental unit. Journal of Agricultural Science, Cambridge 87, 423432.CrossRefGoogle Scholar
Sykes, A. R. & Coop, R. L. (1976). Intake and utilization of food by growing lambs with parasitic damage to the small intestine caused by daily dosing with Trichostrongylus colubriformis larvae. Journal of Agricultural Science, Cambridge 86, 507515.CrossRefGoogle Scholar
Sykes, A. R. & Coop, R. L. (1977). Intake and utilization of food by growing sheep with abomasal damage caused by daily dosing with Ostertagia circumcincta larvae. Journal of Agricultural Science, Cambridge 88, 671677.CrossRefGoogle Scholar
Sykes, A. R., Coop, R. L. & Angus, K. W. (1979). Chronic infection with Trichostrongylus vilrinus in sheep. Some effects on food utilization, skeletal growth and certain serum constituents. Research in Veterinary Science 26, 372377.CrossRefGoogle ScholarPubMed
Sykes, A. R. & Field, A. C. (1973). Effects of dietary deficiencies of energy, protein and calcium on the pregnant ewe. IV. Serum total protein, albumin, globulin, transferrin and plasma urea levels. Journal of Agricultural Science, Cambridge 80, 2936.CrossRefGoogle Scholar
Wainman, F. W., Blaxter, K. L. & Pullar, J. D. (1970). The nutritive value for ruminants of a complete processed diet based on barley straw. Journal of Agricultural Science, Cambridge 74, 311314.CrossRefGoogle Scholar