Morphology of mammary gland skin of female puppies in their newborn and sucking period.
Based on a histological studies and morphometrical analysis mammary gland skin of female puppies in their newborn (15 days) and sucking (7 weeks) period were examined. The analysis made revealed that by the age of 15 days epidermis, derma and hypodermic adipose tissue of the developing mammary gland are formed. By the age of 7 weeks the thickness of epidermis increases by 37%, and the thickness of derma increases by 24% as compared with those in the newborn stage.