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Effects of feeding diets containing Crotalaria retusa L. seed to growing pigs

Published online by Cambridge University Press:  27 March 2009

A. J. Ross
A. J. Ross
Affiliation:
Animal Industry and Agriculture Branch, Department of the Northern TerritoryDarwin, Northern Territory, Australia.
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Summary

Seeds of the plant Crotalaria retusa L., containing 4·4% of the pyrrolizidine alkaloid monocrotaline, were fed in a finely ground form to groups of four pigs from 6 weeks of age. Six levels, 0·004, 0·01, 0·02, 0·05, 0·10 and 0·50% by weight of seed in the diet, were fed continuously for up to 19 weeks. In addition a separate regime, designed to mirror an outbreak of poisoning at a local piggery, consisted of feeding 0·10% for 3 weeks followed by 0·05% for 1 week.

Exposure to more than 0·01%, whether fed continuously or not, resulted in reduced voluntary feed intake and live-weight gain, and high mortality. At 0·50% a reduction in feed conversion efficiency was also obvious. Levels of 0·004% and 0·01% had no significant effect on the production performance of the pigs.

The results of this trial suggest that no more than 0·01% ground C. retusa seed should be included in the diets of pigs. When 0·004%–0·01% is included care should be taken as the long-term effect of the subclinical disease produced is not known.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 89 , Issue 1 , August 1977 , pp. 101 - 105
Copyright
Copyright © Cambridge University Press 1977

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References

Bierer, B. W., Vickers, C. L., Rhodes, W. H. & Thomas, J. B. (1960). Comparison of the toxic effects of Crotalaria spectabilis and Crotalaria giant striata as complete feed contaminants. Journal of the American Veterinary Medicine Association 136, 318–22.Google ScholarPubMed
Bull, L. B., Culvenor, C. C. J. & Dick, A. T. (1968a). The Pyrrolizidine Alkaloids, p. 215. Amsterdam: North Holland Publishing Company.Google Scholar
Bull, L. B., Culvenor, C. C. J. & Dick, A. T. (1968b). The Pyrrolizidine Alkaloids, p. 164. Amsterdam: North Holland Publishing Company.Google Scholar
Emmel, M. W., Sanders, D. H. & Henley, W. W. (1936). Crotalaria spectabilis Roth seed poisoning in swine. Journal of the American Veterinary Medicine Association 86, 43–54.Google Scholar
Hooper, P. T. & Scanlan, W. A. (1977). Crotalaria retusa poisoning of pigs and poultry. Australian Veterinary Journal (in the Press).CrossRefGoogle Scholar
McGrath, J. P. M. & Duncan, J. R. (1975). Crotalaria spectabilis toxicity in swine; characterization of the renal glomerular lesion. Journal of Comparative Pathology 85, 185–94.CrossRefGoogle ScholarPubMed
Peckham, J. C., Sangster, L. T. & Jones, O. H. (1974). Crotalaria spectabilis poisoning in swine. Journal of the American Veterinary Medicine Association 165, 633–8.Google ScholarPubMed
Ross, A. J. & Tucker, J. W. (1977). Effects of feeding diets containing Crotalaria retusa L. seed to broiler chickens. Journal of Agricultural Science, Cambridge 88, 95–9.CrossRefGoogle Scholar
Smith, F. H. & Osborne, J. C. (1962). Toxic effects of Crotalaria seed. Veterinary Medicine 57, 234–7.Google Scholar