1. Two methods are examined of introducing new genetic variance into a line of mice
selected for high 6-week weight which, at its limit, displayed no additive genetic variance. 2 …

Nutritional requirements for mature rodents used in long-term investigations are virtually
unknown. The limited knowledge of the dietary needs of mature rodents is due in part to …

Data were analysed from a divergent selection experiment for an indicator of body
composition in the mouse, the ratio of gonadal fat pad to body weight (GFPR). Lines were …

A genetic analysis was carried out on a line of mice (G) that had apparently reached a
selection limit for rapid postweaning (3-to 6-week) gain. A reverse selection line (GR) was …

Previous research demonstrated the existence of a major gene (hg), expressed as a
homozygous recessive, that increases postweaning growth 60% in C57B1/6 mice (line Ch) …

Data were analysed from HD Goodale's 84-generation selection experiment for body weight
in mice [see ABA, 6: 125 and 10: 45, and J. Genet., 51: 580]. The av. number of mice per …

Experimental animal breeding is to livestock improvement what experimental medicine is to
medical science-the only firm foundation. Good experimentation, however, requires …

This report describes the results of a study to find differences in the distribution of pathologic
lesions between 40% dietary restricted (DR) and ad libi-tum (AL) fed mice of four genotypes …

THE INTERPRETATION of nutrition experiments is frequently, if not usually, inconclusive
because of the variability of the response of individual animals to identical nutritional …

Differences in weight of the body, six different skeletal muscles, epididymal fat pads, three
different bones, spleen, heart, kidneys, testes and liver were observed in 21-day-old male …