Abstract
Microsatellite polymorphism in DRB1 gene (MHC class II) and its relation to nematode faecal egg count in Polish Heath Sheep
Highlights
From the breeding point of view, parasite infections cause a serious problem, as they do not make it possible to fully utilise the production potential of farm animals.GENE POLYMORPHISM, NEMATODE FAECAL EGGS IN SHEEPThe basic method of treatment and prevention in case of parasite infections in farm animals is to use anthelmintic preparations
The intensity of infection of the investigated flock with gastrointestinal nematodes was characterised by considerable variability, ranging in case of dams from 0 to 24 000 eggs and in the group of lambs from 0 to over 27 000 eggs in 1 gram of faeces
It needs to be mentioned, that these maximum values of egg counts in the faeces of infected sheep were observed extremely rarely
Summary
From the breeding point of view, parasite infections cause a serious problem, as they do not make it possible to fully utilise the production potential of farm animals.GENE POLYMORPHISM, NEMATODE FAECAL EGGS IN SHEEPThe basic method of treatment and prevention in case of parasite infections in farm animals is to use anthelmintic preparations. From the breeding point of view, parasite infections cause a serious problem, as they do not make it possible to fully utilise the production potential of farm animals. The basic method of treatment and prevention in case of parasite infections in farm animals is to use anthelmintic preparations. The costs of such therapy are high and frequent applications of these preparations lead to the appearance of drug-resistant populations of parasites (Maingi et al, 1996; Coles, 1997). A standard method for assessing the level of parasite burden in individual animals is a counting parasite eggs in faeces of these animals (faecal eggs count FEC). In literature there are different values of heritability for FEC. The heritability for FEC estimated by Charon et al (2000) for the Polish Heath Sheep was 0.128
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