Observations on egg production by Toxocara pteropodis

Prociv P. (1989) Observations on egg production by Toxocara pteropodis. International Journal for Parasitology, 19 4: 441-443. doi:10.1016/0020-7519(89)90100-8


Author Prociv P.
Title Observations on egg production by Toxocara pteropodis
Journal name International Journal for Parasitology   Check publisher's open access policy
ISSN 0020-7519
Publication date 1989-01-01
Sub-type Article (original research)
DOI 10.1016/0020-7519(89)90100-8
Volume 19
Issue 4
Start page 441
End page 443
Total pages 3
Subject 2405 Parasitology
2725 Infectious Diseases
Abstract Studies in juvenile Pteropus poliocephalus showed an average daily egg production by Toxocara pteropodis of 25,000 per female, with faecal concentrations of up to 16,000 epg, regardless of whether eggs were fertile or infertile. Production commenced as early as 35 and as late as 48 days post-partum and rose to plateau average levels over about 10 days. For 23 days one bat passed infertile eggs which, over 2 days, were then replaced completely by fertile eggs. The implicit delay in maturation of a male nematode suggests that transmammary passage of larvae to suckling bats may persist for at least 3 weeks. Patency was terminated by the spontaneous expulsion of worms. If male worms were lost first, the egg output converted from fertile to 100% infertile within 48 h and the females were devoid of spermatozoa, suggesting that T. pteropodis copulate at least once daily. In prolonged infections, worm fecundity and egg fertility diminished, so that females with stored spermatozoa were producing mixtures of fertile and infertile eggs.
Keyword fecundity
nematode copulation
nematode eggs
pre-patent period
Pteropus poliocephalus
Toxocara pteropodis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 14 Jun 2016, 12:32:00 EST by System User