93 citations
,
May 1990 in “The EMBO Journal” Mice with extra sheep genes had hair that fell out and regrew in cycles.
34 citations
,
September 2007 in “Experimental Dermatology” The outer layer of Merino wool is rich in sulfur proteins, making it resistant to damage.
10 citations
,
April 2013 in “Journal of Investigative Dermatology” Scientists created a model using sheep cells to study hair root formation, which can test how different substances affect hair growth.
June 2020 in “Journal of Investigative Dermatology” Certain bacteria can enhance skin regeneration.
May 2022 in “Research Square (Research Square)” Melatonin improved sheep reproduction, being more beneficial and cost-effective in males.
March 2026 in “Biomolecules” MicroRNAs play a key role in controlling hair growth and quality in sheep and goats.
January 1963 in “Stain technology” Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
April 2023 in “Tropical Animal Health and Production” Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.
7 citations
,
January 1997 in “International Biodeterioration & Biodegradation” Microsporum canis breaks down animal hair fastest in sheep and foxes, slowest in humans.
24 citations
,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
December 2025 in “Frontiers in Veterinary Science” Key genes like KRT27 and IGF-2 are crucial for hair follicle development in Qianhua Mutton Merino sheep.
51 citations
,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
48 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
2 citations
,
March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
1 citations
,
December 2021 in “Animals” Low zinc and selenium levels in sheep are linked to hair loss and thyroid problems.
January 2014 in “China Animal Husbandry & Veterinary Medicine” The KAP8-1 gene affects skin, hair follicle development, and wool quality in different sheep varieties.
January 2002 in “Agritrop (Cirad)” The hr gene is linked to hair loss in Valle del Belice sheep.
November 2025 in “BMC Genomics” Genetic differences in sheep affect wool type, with fat and immune genes influencing hair traits.
11 citations
,
October 2014 in “Gene” Researchers identified a new variant of the FGF5 gene in sheep that affects hair length.
August 2022 in “International Journal of Health Sciences (IJHS)” Low levels of zinc, ferritin, and vitamin B12 are linked to severe hair loss in pregnant women during their last two trimesters.
1 citations
,
November 2023 in “International Journal of Molecular Sciences” SOX18 helps sheep hair cells grow by activating a specific cell growth pathway.
Sheep can lose wool quickly due to stress, but it doesn't cause itching or pain.
1 citations
,
July 2024 in “International Journal of Molecular Sciences” MicroRNA-181a slows sheep hair growth by targeting GNAI2 and affecting a key growth pathway.
KRTAP6 genes affect wool quality in sheep.
3 citations
,
January 1982 in “Australian journal of biological sciences” Ethionine significantly inhibits wool growth in sheep but not hair growth in mice or rats.
Knocking out the FGF5 gene in sheep increased wool production and hair-follicle density.
46 citations
,
November 1998 in “Experimental Cell Research” K15 gene is mainly active in the basal layers of hair follicles and epithelia, aiding early skin cell development.
2 citations
,
September 2017 in “Mehmet Akif Ersoy Üniversitesi Veteriner Fakültesi dergisi” Specific genes influence hair growth and quality in goats and sheep.
January 2024 in “International journal of molecular sciences” Hoxc13 gene affects wool length in Gansu alpine fine-wool sheep.
The goat hair keratin gene is very similar to sheep's and is strongly expressed in goat hair follicles.