Influence of Low and High Temperatures on the Development of Haemonchus Contortus and Oesophagostomum Columbianum Larvae in Nigeria

Autor:	E. D. Okon, U. K. Enyenihi
Rok vydání:	2021
Předmět:	Veterinary medicine Larva biology parasitic diseases Oesophagostomum columbianum biology.organism_classification Haemonchus contortus
Zdroj:	Nigerian Journal of Animal Production. 3:172-175
ISSN:	0331-2062
DOI:	10.51791/njap.v3i1.2591
Popis:	EGGS of Haemonchus contortus and Oesophagostomum columbianum exposed to a constant temperature of 13.8°C at 100% relative humidity developed to the infective third stage larvae within 15 and 18 days respectively. Exposure of eggs for nine hours at 40.6°C and 100% relative humidity was lethal but development to the infective stage was achieved by culturing at 27°C after six hours of exposure at 400C and 100% relative humidity. The normal Nigerian temperature range of 13.8°C [lowest minimum for Obudu Cattle Ranch] to 40.6°C (maximum for Maiduguri) is therefore suitable for survival and development of these stronglyle eggs to the infective stages at any season in the country.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8c16c99be58a3452310eef3bfcfbcdfa https://doi.org/10.51791/njap.v3i1.2591 Zobrazit plný text záznamu