Role of Mammary Glands on Weight of Suckling Rats

Abstract

In nutritional studies there is a great need stant." It is now known( 1) that the weaning for employing rats showing uniformity in weight of rat is influenced by the following weight. In the weanling rats reared in these factors: (a) the number of young the mother Laboratories it has not been possible to obtain suckles, (b) the position of the litter in litter appreciable uniformity in weights. The in-series, (c) the nature of the diet. While dividual variation was considerable although studying these aspects, it was noticed that the average weaning weight of animals born during different periods remained fairly con-* Unpublished data.at UNIV OF MICHIGAN on June 17, 2015 ebm.sagepub.com Downloaded from * Preliminanreport appeared in P o d t r y Sci., 1955, rat( 1 ) , dog (2), guinea pig( 3 ) , and mouse (41, onset of deficiency is relatively slow and becomes apparent in changes in skin and fur as Well as in decreased growth rate. The periods required for depletion of essential fatty v34, 1231.