Studies on Ostertagia spp. from Greenlandic Sheep: Arrested Development and Worm Length

Autor:	D. E. Jacobs, C. H. Rose
Rok vydání:	1990
Předmět:	Male education.field_of_study Larva Sheep General Veterinary Abomasum Greenland Population Ostertagia Sheep Diseases Zoology General Medicine Anatomy Diapause Biology United Kingdom Article The arctic Ostertagiasis parasitic diseases Animals Helminths Female education
Zdroj:	Acta Vet Scand
ISSN:	1751-0147
DOI:	10.1186/bf03547545
Popis:	Studies were conducted to investigate earlier observations that lambs slaughtered in Greenland in late September/early October have relatively few arrested larvae in the abomasal mucosa and that the adult Ostertagia from such lambs are abnormally large. Post mortem examination of naturally infected ewes in mid-winter demonstrated that a significant proportion of their Ostertagia population was hypobiotic at this time of year, while an experimental study showed that considerable numbers of larvae of Greenlandic origin became arrested following cold conditioning for 10 weeks. A comparison of adult Ostertagia of Greenlandic and Britain origins from lambs experimentally infected with larvae cultured under identical conditions demonstrated that the “giant” size of the arctic worms was attributed mainly to environmental rather than genetic influences.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7350de97a03dbe8ed02faa04815c39c8 https://doi.org/10.1186/bf03547545 Zobrazit plný text záznamu Full text from SpringerLink