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Ultra-violet irradiation of fattening pigs

Published online by Cambridge University Press:  01 March 1959

J. Walker-Love ,
R. Laird Jnr ,
J. M. Thomson  and
K. W. Gray
J. Walker-Love
Affiliation:
West of Scotland Agricultural College, Auchincruive, near Ayr
R. Laird Jnr
Affiliation:
West of Scotland Agricultural College, Auchincruive, near Ayr
J. M. Thomson
Affiliation:
West of Scotland Agricultural College, Auchincruive, near Ayr
K. W. Gray
Affiliation:
West of Scotland Agricultural College, Auchincruive, near Ayr
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Extract

1. Ninety-six Large White fattening pigs, 8-10 weeks old at the beginning of the trial were used to study the effects of ultra-violet irradiation (22½ hours daily) with and without oxytetracycline supplements of the diet. All meal fed was fortified with vitamin D.

2. Under the conditions of this trial ultra-violet irradiation was without effect. Oxytetracycline supplementation resulted in significantly higher live-weight increases, lower age at slaughter and improved feed conversion.

3. No significant treatment differences were recorded for any of the carcass measurements.

4. Ultra-violet irradiation did not reduce the number of ‘thumping’ pigs nor the degree of lung damage by virus pneumonia, whereas ‘thumping’ was significantly less on the oxytetracycline treatments.

5. The results are discussed in relation to vitamin D requirements and the presence of virus pneumonia.

Type
Research Article
Information
Animal Production , Volume 1 , Issue 1 , March 1959 , pp. 21 - 29
Copyright
Copyright © British Society of Animal Science 1959

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References

REFERENCES

Barber, R. S., Braude, R., Mitchell, K. G., Rook, J. A. F., & Rowell, J. G., 1957. Further studies on antibiotic and copper supplements for fattening pigs. Brit. J. Nutr., 11: 70.CrossRefGoogle ScholarPubMed
Boyd Orr, J., Henderson, J. M., & Crichton, A., 1926. The influence on nutrition of sunlight and artificially produced ultra-violet rays. Trans. Highl. agric. Soc. Scot., 38: 88.Google Scholar
Braude, R., Kon, S. K., & Porter, J. W. G., 1953. Antibiotics in nutrition. Nutr. Abstr. Rev., 23: 473.Google ScholarPubMed
Braude, R., & Rowell, J. G., 1957. Labour saving in feeding of fattening pigs. J. agric. Sci., 48: 322.CrossRefGoogle Scholar
Grashuis, J., 1956. Stealing bij de opfok van het jonge vee en het voorkomen van stressverschijnselen, Tijdschr. Diergeneesk., 81: 15. (Abstract in Nutr. Abstr. Rev., 1956, 26, No. 3978.)Google Scholar
Hardy, M., & Chapman, J., 1931. Ultra-violet radiation and resistance to infection: intranasal infection with the pneumococcus and with Bacterium lepisepticum in the rabbit. Amer. J. Hyg., 13: 255.Google Scholar
Lucas, I. A. M., 1957. Antibiotic supplements in rations for pigs. Vet. Rec, 69: 233.Google Scholar
Lucas, I. A. M., & Calder, A. F. C., 1955. The growth of pigs kept to one level of feeding, in two environments, and fed diets with and without an antibiotic. J. agric. Sci., 46: 307.CrossRefGoogle Scholar
Morrison, F. B., 1951. Feeds and Feeding. Morrison Publishing Co., Ithaca, N.Y. 21st ed.Google Scholar
Novikova, A. E., 1954. Ultrafioletovoe oblučenie životnyh. Nauka i Žiznj, 21 (3): 36. (Abstract in Nutr. Abstr. Rev., 1955, 25, No. 5780.)Google Scholar
Woodman, H. E., 1957. Rations for livestock. Bull. Minist. Agric. (Lond.), No. 48 (14th ed.).Google Scholar
Yates, F., 1933. The analysis of replicated experiments when the field results are incomplete. Emp. J. exp. Agric., 1: 129.Google Scholar