QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Heggeness, F. W. Articles by Oaks, M. Search for Related Content PubMed PubMed Citation Articles by Heggeness, F. W. Articles by Oaks, M.

Weight Gains of Overnourished and Undernourished Preweanling Rats¹

Department of Physiology, University of Rochester, School of Medicine and Dentistry, Rochester, New York

1. The preweaning weight gain of albino rats varied directly with the available milk supply. With an abundant supply, average weaning weight was 60.0 gm; animals from litters of 18 weighed 25 gm.

2. Carcass of animals heavy at weaning contained more ash, protein and fat than smaller animals. The greatest difference was in total body fat.

3. Time of opening of the eyes, initial appearance of hair and percentage of water in fat-free body at weaning was not influenced by rate of weight gain.

4. In the immediate postweaning period rate of growth of all animals accelerated to approximately twice that of the fastest gaining group during the preweaning period.

5. At 60 days postweaning, animals large at weaning contained significantly more dry solids than the small animals, but not intermediate-sized animals at weaning.

Manuscript received 7 March 1961.

This article has been cited by other articles:

				S. A. Miller and H. A. Dymsza Artificial Feeding of Neonatal Rats Science, August 9, 1963; 141(3580): 517 - 518. [Abstract] [PDF]