初生水貂皮肤毛囊发育组织学观察  

Histological Observation of Development of Skin and Hair Follicle in Neonatal Mink

作　　者：王卓[1] 李光玉[1] 杨雅涵[1] 张婷[1] 黄健[1] 周宁[1] 孙伟丽[1] 

机构地区：[1]中国农业科学院特产研究所,特种经济动物分子生物学国家重点实验室,吉林长春130112

出　　处：《中国畜牧兽医》2014年第8期201-205,共5页China Animal Husbandry & Veterinary Medicine

基　　金：吉林省科技厅发展计划处青年科研基金(201201002);中国农业科学院科技创新工程经费

摘　　要：为了解水貂皮肤毛囊发育的变化规律,本试验采集0-6周龄初生的美国短毛黑公水貂的背中部皮肤样品,用HE染色法制备组织切片,在显微镜下观察其皮肤毛囊结构及变化规律。结果发现,水貂的皮肤在出生前就已经基本发育完成,初级毛囊、次级毛囊的毛干具有髓质;水貂出生时可见初级毛囊而无次级毛囊,初级毛囊的密度随周龄的增加而增加,于4周龄后降低,初级毛囊在水貂4周龄后不再发育或很少发育,4周龄时可见次级毛囊,次级毛囊随水貂体表的增长毛密度增加,且在水貂出生后大量发育。水貂6周龄时S/P值为2.95±0.23,次级毛囊仍将大量发育。水貂背中部表皮呈先增厚后变薄的变化,真皮随着周龄的增加而增厚;初级毛囊、次级毛囊随周龄的增加而加深。The study investigated the structure and development traits of skin and hair follicle of 0-week-old to 6-week-old neonatal male minks.Skin samples were obtained from central back of minks.Tissue sections were prepared by using HE staining method.The results showed that the guard hair and underfur of minks had hair medulla;mink was born without the secondary follicles,but the structure of the primary follicles had formed.The density of primary follicles firstly increased and decreased at 4-week-old with the increase of week age.Primary hair follicles no longer developed or rarely developed after 4-weekold.At 4-week-old,some of the secondary follicles had formed.The density of the secondary follicles increased with the increase of week age.Secondary hair follicles and primary hair follicles average ratio（S/P）was 2.95±0.23.Secondary hair follicles still developed after 6-week-old.The epidermises of neonatal minks were firstly thicken,and then thinning.The dermal of the minks thickened and the primary and secondary follicles deepen with the increase of week age.

关 键 词：水貂 初生 毛囊 发育 

分 类 号：Q344.5[生物学—遗传学]