Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-28T02:37:35.207Z Has data issue: false hasContentIssue false

Factors influencing the egg production of Ascaris lumbricoides: relationship to weight, length and diameter of worms

Published online by Cambridge University Press:  05 June 2009

B. Sinniah
Affiliation:
Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpar, Malaysia
K. Subramaniam
Affiliation:
Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpar, Malaysia

Abstract

Fifty children aged 6 to 13 years and infected with Ascaris lumbricoides were selected for the study. The number of eggs laid daily by a female Ascaris increased with increase in its length, weight and diameter. Female worms became mature and started laying eggs when they reached a length of 118 mm. Adult female worms measuring 3·7 mm or more in diameter were found to be mature. The minimum weight of a worm producing eggs was 1·1 g. On average the number of eggs produced by the female decreased with increase in the worm load.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1991

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

Augustine, D. L., Nazmi, M., Helmy, M. & Mcgavean, E. G. (1928) The ova parasite ratio Ancylostoma duodenale and Ascaris lumbricoides. Journal of Parasitology, 15, 4551.CrossRefGoogle Scholar
Beaver, P. C. (1950) The standardisation of faecal smears for estimating egg production and worm burden. Journal of Parasitology, 36, 451456.CrossRefGoogle ScholarPubMed
Beaver, P. C., Jung, R. C. & Cupp, E. W. (1984) Clinical Parasitology. 9th Edition. Lea & Febiger. Philadelphia. pp. 307319.Google Scholar
Bisseru, B. & Aziz, A. (1970) Intestinal parasites. cosinophilia and gamma globulin in Malay, Chinese and Indian school-children. The Medical Journal 0f Malaysia, 25. 2933.Google Scholar
Brown, H. W. & Cort, W. M. (1927) The egg production of Ascaris lumbricoides. Journal of Parasitology. 14, 8890.CrossRefGoogle Scholar
Delgado, R., Garnica, Y. & Martinez-Murray, R. (1970) L'irregularite de la ponte d'Ascaris lumbricoides. Annales de Parasitologie, 45, 223226.Google Scholar
Farid, S., Bassili, S., Wissa, J. & Omar, M. S. (1966) Single dose treatment for Ascaris infection with piperazine citrate: with a study of the egg parasite ratio. American Journal of Tropical Medicine and Hygiene, 15. 516518.CrossRefGoogle ScholarPubMed
Katz, N., Caves, A. & Pelegrino, J. (1972) A simple device for quantitative stool thick smear technique in Schistosoma mansoni, Revista de Instituto Medicina Tropica de Sao Paulo, 14, 397400.Google Scholar
Krupp, I. M. (1961) Effects of crowding and superinfection on habitat selection and egg production in Ancyclostoma caninum. Journal of Parasitology. 47. 957961CrossRefGoogle Scholar
Lie, K. J. (1964) Prevalence of intestinal helminths among patients in the General Hospital in Kuala Lumpur. Malaysia. Tropical Geographical Medicine, 16, 229.Google Scholar
Mello, D.A. (1974) A note on egg production of Ascaris lumbricoides. Journal of Parasitology. 60. 380–1.CrossRefGoogle ScholarPubMed
Seo, B.S. (1981) Ascariasis and its control problems in Korea. Seoul Journal of Medicine. 22, 323341.Google Scholar
Sinniah, B. (1982) Daily egg production of Ascaris lumbricoides: the distribution of eggs in the faeces and the variability of egg counts. Parasitology. 84. 167175.CrossRefGoogle ScholarPubMed
Sinniah, B. & Chew, P. I.(1988) Treatment of intestinal nematodes with albendazole. Tropical Biomedicine, 5, 4750.Google Scholar
Sinniah, B., Sinniah, D., Manmohan, Singh & Poon, G. K. (1978) Prevalence of parasitic infection in Malaysia oil palm estate workers. Southeast Asian Journal of Tropical Medicine and Public Health, 9, 272.Google ScholarPubMed
Stoll, N.R. & Hausheer, W. C. (1926) Accuracy in the dilution egg counting method. American Journal of Hygiene, 6 (supplement). 80133.Google Scholar
Yazima, F. & Machinda, K. (1958) On the ecological relations of parasite state Ancyclostoma caninum especially on the density of population. Japanese Journal of Parasitology, 7, 631640.Google Scholar
Zahedi, M., Oothuman, P., Sabapathy, N. M. & Bakar, N. A. (1980) Intestinal nematode infection and efficacy study of oxantel pyrantel pamoate among plantation workers. The Medical Journal of Malaysia. 35, 3137.Google ScholarPubMed