Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
January 2008 in “Pratique médicale & chirurgicale de l'animal de compagnie” Alopecia X in dogs is a cosmetic issue, not a hormonal disorder, and harmful treatments should be avoided.
January 2008 in “Springer eBooks” Thyroid hormone may be useful for treating various skin conditions and needs more research.
Biotin boosts wool growth and follicle health in sheep.
38 citations
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June 2018 in “Archives of Toxicology” Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.
36 citations
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April 2016 in “Experimental Dermatology” Photobiomodulation may help with hair growth and wound healing, but research is inconsistent and needs better quality studies.
23 citations
,
March 1989 in “The Veterinary clinics of North America. Food animal practice” Llamas often have skin issues like mange, bacterial infections, and allergies, with some treatable by zinc.
September 2019 in “Mağallaẗ al-ʿulūm al-ṭabīʿiyyaẗ wa-al-ḥayātiyyaẗ wa-al-taṭbīqiyyaẗ” Camel hair from Afif can be improved for textiles by adding chemicals or blending with other fibers.
January 2025 in “Animal Science Journal” Golden takin's hair structure is adapted to maintain body temperature in harsh winters.
12 citations
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October 1947 in “Journal of the Society of Dyers and Colourists” Mercuric acetate makes wool unshrinkable by changing its elastic properties.
3 citations
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October 2024 in “Animals” Crimped wool has proteins linked to crimp formation, while straight wool has proteins linked to fiber fineness, which can improve wool quality and value.
Curly wool has more orthocortex than straight wool.
3 citations
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December 2021 in “Proteins” Wool fiber curliness is linked to the presence of certain proteins and K38.
9 citations
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December 2018 in “Journal of Natural Fibers” Magra sheep's wool luster is linked to specific keratin gene expression and protein variations.
11 citations
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June 2021 in “Frontiers in Cell and Developmental Biology” Melatonin helps goat hair stem cells grow and maintain their ability to become different cell types.
3 citations
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August 2022 in “Biochemical Genetics”
191 citations
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November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
1 citations
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February 2023 in “Journal of Natural Fibers” Higher keratin protein levels are important for the wool's shine in Magra sheep.
2 citations
,
May 2023 in “Journal of Advanced Research” Two mutations in KRT74 and EDAR genes cause sheep to have finer wool.
The GG genotype of the KRT71 gene leads to longer wool in Gansu alpine fine-wool sheep.
27 citations
,
March 2018 in “Journal of Experimental Biology” Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
1 citations
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June 2025 in “Frontiers in Genetics” Key genes IRF2BP2 and EGFR are linked to Hetian sheep's double-coat fleece.
Variant G of the KRTAP20-1 gene improves wool curliness in Chinese Tan sheep.
January 2012 in “Heilongjiang xumu shouyi” EGF and KGF affect wool fineness in Gansu alpine Merino sheep.
December 2024 in “Veterinary Sciences” Key genes and pathways improve wool quality in Zhexi Angora rabbits.
9 citations
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November 2022 in “Biology” Key genes and pathways influence wool traits in Merino sheep.
January 2013 in “Shanghai Textile Science & Technology” Milk protein treatment reduces pilling in rabbit hair fabric.
January 2022 in “Archiv für Tierzucht” EPHA4 and Ephrin A3 are found in the skin of Aohan fine-wool sheep.