Volume 48/Number 2/Abstract 10
Acta Parasitologica Homepage
Tables of Contents
Volume 48 Tables of Contents

Acta Parasitologica, Vol.48, No. 2, 2003, 131-134
Boguslaw Nowosad (1), Lucas Gruner (2), Marta Skalska (1)*, Wladyslawa Fudalewicz-Niemczyk (1), Krzysztof Molenda (3) and Slawomir Kornas (1) - Genetic difference in natural resistance to gastrointestinal nematodes in Polish long-wool, Blackface and Weisses Alpenschaf sheep

(1) Department of Zoology and Ecology, Academy of Agriculture, 24/28 Mickiewicza Street, 30-059 Krakow, Poland; (2) INRA Bioagresseurs, Sante et Environnement, 37380 Nouzilly, France; (3) Department of Agricultural Mechanization, Academy of Agriculture, 104 Balicka Street, 30-149 Krakow, Poland
*Corresponding author: mskalska@ar.krakow.pl

In an experimental flock of Polish long-wool sheep (PL), rams and ewes were progressively replaced by Blackface (Bl) and Weisses Alpenschaf (WA) sheep. The ewes and their lambs were naturally infected with predominantly Teladorsagia circumcincta and Haemonchus contortus nematode species. A survey was done from 1995 to 2000 by regular FECs. Significant fixed effects were: the timing of last anthelmintic treatment, month and year of sampling in ewes and lambs, plus the age (yearling or not) and the suckling effort for the ewes as well as the sex of the lambs. The breed effect was highly significant. PL ewes excreted three times fewer eggs than Bl. Also PL and WA lambs possessed 1.5 fewer nematode eggs in their faeces than Bl ones. It is concluded that introduction of Bl and WA for breeding will require more careful control of nematode infection than the management of the local long-wool breed.

KEY WORDS: Gastrointestinal nematodes, sheep breeds, faecal egg count, host resistance

Page compiled by M. Bultowicz. Last modification: 05-08-2003