@conference {40785,
	title = {Faecal nematode egg counts and facial eczema susceptibility in Romneys},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {84-86},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {A study was carried out in two groups of flocks to estimate the  relationship between susceptibility to facial eczema (FE) and susceptibility  to nematode parasites. Faecal egg count (FEC) data on lambs born in 1989- 92 from 53 sire groups were collected on the Ruakura Romney flocks which  have been divergently selected for resistance/susceptibility to FE. In  addition, the Romney flocks selected at Rotomahana/Tokanui Stations for  resistance/susceptibility to FEC were sampled to provide the converse (i.e.  FE data) on lambs born in 1988 and 1989, and representing 43 sires. Faecal  samples for FEC were collected from lambs in January and March  (separated by an anthelmintic treatment) and the FEC data were analysed  using a loge transformation. FE susceptibilities, using the enzyme gamma- glutamyltransferase (GGT) as an indicator, were obtained in the FE flocks at  Ruakura after an oral sporidesmin challenge in May, and in the FEC flocks  at Tokanui after unintentional field challenge; the GGT data were also  analysed using a loge transformation. The weighted average heritabilities of  loge GGT and loge (FEC+100) were 0.44},
	issn = {1176-5283},
	author = {Morris CA and Towers NR and Watson TG and Wheeler M and Amyes NC and Hosking BC}
}
