Table 8.

Association between alleles at OLADRB and parasite resistance

OLADRB allele	Coefficient lamb FEC (±SE)	Coefficient yearling FEC (±SE)
205	−0.119  (±0.089)	0.115  (±0.117)
213	−0.070  (±0.106)	−0.121  (±0.177)
257	0.252  (±0.077)**	−0.159  (±0.117)
263	−0.036  (±0.099)	−0.330  (±0.145)*
267	−0.009  (±0.091)	0.340  (±0.139)*
276	−0.179  (±0.101)	0.134  (±0.150)

Alleles at the class II MHC marker OLADRB were fitted under an additive model to lamb and yearling FEC. Coefficients are shown for main effects in lamb and yearling FEC. These coefficients are derived from a generalized linear model assuming a negative binomial error distribution (see text). ∗, P < 0.05; ∗∗, P < 0.01.