칡소의 모색 발현과 호르몬 변화와의 상관관계 분석 연구 (Analysis of Coat Color Changes and Hormone Levels in Korean Brindle Cattle)

서지정보

· 발행기관 : 사단법인 한국동물생명공학회
· 수록지 정보 : 한국동물생명공학회지 / 30권 / 1호 / 65 ~ 71페이지
· 저자명 : 이해이, 박재희, 김용수, 김종국

초록

The aim of this study was to determine the relationship between the coat color appearance of Korean brindle cattleand the changes of relevant hormone levels that may affect the hair pigmentation during different stages of growthand maturation. In mature cattle, levels of both ACTH and DHEA in Korean brindle cattle with brown color weresignificantly higher than those with black color (p<0.05). Levels of α-MSH in Korean brindle cattle with whole brindle(≧50%) color were significantly higher than those with brown color (p<0.05). In calves of Korean brindle cattle at2 to 6 months, the concentration of estradiol was significantly higher in calves with whole brindle color than thosewith part brindle color (p<0.05), when the coat color was confirmed. After 6 month of coat color confirmation, levelsof testosterone and ACTH increased in calves with part brindle color and were significantly higher than those withwhole brindle color (p<0.05). In calves of Korean brindle cattle at 1 or 2 months, there were no significant differencesin hormone levels of estradiol, ACTH, DHEA and α-MSH between the calves with brindle color and brown color,except estradiol before brindle color appearance. Changes of relevant hormone levels at different stage of growth andmaturation may affect the pigmentation of coat during the development of cattle. In addition to the current studycorrelating the different coat colors with relevant hormone levels, investigation of the coat color associated genesexpressed in Korean brindle cattle may further clarify the mechanisms of coat color changes during their development

영어초록

The aim of this study was to determine the relationship between the coat color appearance of Korean brindle cattleand the changes of relevant hormone levels that may affect the hair pigmentation during different stages of growthand maturation. In mature cattle, levels of both ACTH and DHEA in Korean brindle cattle with brown color weresignificantly higher than those with black color (p<0.05). Levels of α-MSH in Korean brindle cattle with whole brindle(≧50%) color were significantly higher than those with brown color (p<0.05). In calves of Korean brindle cattle at2 to 6 months, the concentration of estradiol was significantly higher in calves with whole brindle color than thosewith part brindle color (p<0.05), when the coat color was confirmed. After 6 month of coat color confirmation, levelsof testosterone and ACTH increased in calves with part brindle color and were significantly higher than those withwhole brindle color (p<0.05). In calves of Korean brindle cattle at 1 or 2 months, there were no significant differencesin hormone levels of estradiol, ACTH, DHEA and α-MSH between the calves with brindle color and brown color,except estradiol before brindle color appearance. Changes of relevant hormone levels at different stage of growth andmaturation may affect the pigmentation of coat during the development of cattle. In addition to the current studycorrelating the different coat colors with relevant hormone levels, investigation of the coat color associated genesexpressed in Korean brindle cattle may further clarify the mechanisms of coat color changes during their development

참고자료

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