Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Mammary Glands of Pregnant Rats: Development Stimulated by Licking

Lorraine L. Roth and Jay S. Rosenblatt
Science
New Series, Vol. 151, No. 3716 (Mar. 18, 1966), pp. 1403-1404
Stable URL: http://www.jstor.org/stable/1718508
Page Count: 2
  • More info
  • Cite this Item
Preview not available
Preview not available

Abstract

At the end of gestation, the mammary glands of pregnant rats that have been prevented from licking their ventral surfaces by neck collars are about 50-percent less developed than those of control animals. Neither the burden nor the stress effect of the collar is an alternative explanation. A considerable proportion of mammary development during pregnancy is thus caused by the female's own licking.

Page Thumbnails

  • Thumbnail: Page 
1403
    1403
  • Thumbnail: Page 
1404
    1404