Abstract
Broiler chicken flocks were studied to determine the mortality from sudden death syndrome occurring in the flocks. The difference in the incidence of the syndrome in pullets and cockerels, and the age at which the most birds are affected were also studied. The weight of sudden death syndrome birds was compared with the flock average and the effect of continuous lighting as opposed to intermittent lighting was examined.
The results suggest that; continuous lighting produces more sudden death syndrome deaths than intermittent lighting; that the incidence of sudden death syndrome is higher in cockerels than pullets; that the highest death rate occurred during the third and fourth weeks of life, and that sudden death syndrome birds on the average were heavier than the flock average.
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Selected References
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- Brigden J. L., Riddell C. A survey of mortality in four broiler flocks in western Canada. Can Vet J. 1975 Jul;16(7):194–200. [PMC free article] [PubMed] [Google Scholar]
- Cassidy D. M., Gibson M. A., Proudfoot F. G. The histology of cardiac blood clots in chicks exhibiting the "flip-over" syndrome. Poult Sci. 1975 Nov;54(6):1882–1886. doi: 10.3382/ps.0541882. [DOI] [PubMed] [Google Scholar]
- Ononiwu J. C., Thomson R. G., Carlson H. C., Julian R. J. Pathological studies of "Sudden death syndrome" in broiler chickens. Can Vet J. 1979 Mar;20(3):70–73. [PMC free article] [PubMed] [Google Scholar]
- Poultry diseases diagnosed in canadian laboratories for the year 1975. Can Vet J. 1977 Nov;18(11):297–300. [PMC free article] [PubMed] [Google Scholar]