Effects of sheep lice(Damalinia ovis)on wool colour
نویسندگان
چکیده
منابع مشابه
Medieval Sheep and Wool
I 'N THE PAPER I wrote twenty years ago on the origins of British breeds of sheep, I .attempted to integrate new evidence from archaeology with older documentary evidence.' Medieval archaeology was in its infancy, and the bone remains from sheep gave little information. Illustrations in illuminated manuscripts and later paintings gave better evidence than records. But the most striking new and ...
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This issue begins with Australian research showing that wearing superfine merino woollen clothing may help manage children with atopic dermatitis. Researchers from the US have reported that patients with hidradenitis suppurativa have changes in the expression of genes encoding enzymes involved in sphingolipid metabolic pathways. Research from Queensland reports on patients treated with diphenyl...
متن کاملEvaluation of Crossbreeding Effects for Wool Traits in Sheep
Crossbreeding effects for wool quality traits viz. greasy fleece weight (kg), staple length (cm), average fibre diameter (μ) and medulation percentage were estimated using the Dickerson’s and Kinghorn’s models. The data analyzed involved 15 genetic groups including Nali purebred, F1’s of two and three breeds, F2’s and reciprocal crossbred obtained from the crossing of Nali (N), Merino (M) and C...
متن کاملGenetic parameters of wool colour and skin traits in Corriedale sheep
Clean wool colour (CWC) is an important wool price determinant and has been related to suint characteristics, i.e. sudoriparous and sebaceous gland secretions, such as suint percentage and suint K content. In this work heritability, phenotypic and genetic correlations among wool colour and skin traits were examined. The genetic estimates were assessed by Restricted Maximum Likelihood (REML) pro...
متن کاملCell migration in wool follicles of sheep.
The migration of cells in wool follicles was studied by autoradiography of skin biopsies taken at half-day intervals from 2 to 5 days after intradermal injections of tritiated thymidine in 8 Corriedale sheep on different planes of nutrition. Cell migration rates were not the same in all follicles. Therefore, the shortest and longest times for cells to migrate to defined levels in the follicles ...
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ژورنال
عنوان ژورنال: New Zealand Journal of Experimental Agriculture
سال: 1982
ISSN: 0301-5521
DOI: 10.1080/03015521.1982.10427835