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. 2007 Jul 11;4(16):767–776. doi: 10.1098/rsif.2007.1104

Figure 5.

Figure 5

Heterozygotes (HET) had lower egg counts than homozygotes (HOM) for the DRB1 locus within the sheep MHC. There were 152 homozygotes and 637 heterozygotes. The animals were naturally infected and parents were bred without knowledge of mhc genotypes. All animals came from a commercial farm in southwest Strathclyde. Heterozygous individuals with two different alleles at the DRB1 locus are more resistant to nematode infection than individuals with two copies of the same allele. The y-axis represents faecal egg counts in September that were transformed by taking logarithms to the base 10.