Wistar Albino Dişi Sıçanlarda Laktasyon Döneminde Meme Bezlerinde Tahrişler

Yılmaz O.

5. Ulusal Laboratuvar Hayvanları Bilimi Kongresi , İstanbul, Turkey, 14 - 16 September 2023, vol.1, no.1, pp.120-121

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.120-121
  • Dokuz Eylül University Affiliated: Yes


Objective: To report mammary gland irritations during lactation in Wistar Albino female rats. Case: Laboratory rats are one of the most preferred species in experimental animal research due to their many advantages such as being mammals, having multiple offspring, short gestation period, ease of transportation, defined genetic structure and easy adaptation to laboratory conditions. After 21 days of pregnancy, female rats are born premature, hairless, with their eyes and ears closed, and they are in need of mother's care and feeding. The lactation period in the rat is completed in twenty-one days. Rats have twelve mammary glands. In the experimental animal laboratory of Dokuz Eylül University, irritations and inflammations were noted in the nipples of the mother rats towards the end of the lactation period in the Wistar Albino female rat colony. Especially since mother rats with many offspring have to breastfeed for a very long time to feed a large number of offspring, it causes irritation on the nipples of the mother rats due to the eruption of the incisors of the offspring. It has been observed that mother rats with many cubs move away from the pups, lean their udders against the cage wall, and hide the mothers under the cage litter material. However, as the offspring grow, it has been observed that there is serious competition between siblings for breastfeeding. Conclusion: Lactation period should be carefully followed in laboratory mouse and rat colonies, animal caretakers and veterinarians should be more sensitive about managing the breastfeeding period. Keywords: Lactation period, irritations, mammary glands, Wistar albino, female rat