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- Hansen, Stefan, 1953, et al.
(author)
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The development of sexual behavior in the rat: role of preadult nutrition and environmental conditions.
- 1978
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In: Developmental psychobiology. - : Wiley. - 0012-1630 .- 1098-2302. ; 11:1, s. 51-61
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Journal article (peer-reviewed)abstract
- Rats were subjected to pre- and postnatal undernutrition by restricting the food intake of their mothers (U); another group of rats was normally fed (N). Each nutrition group was divided into 3 subgroups by varying the degree of environmental stimulation: animals in the Max group were stimulated by handling and enriched rearing conditions; the Min group rats were subjected to social isolation; rats in the control condition (C) were raised under ordinary laboratory conditions. The onset of sexual activity was not affected in the U-C male rats, but was delayed in both U-Min and N-Min rats. Although no difference existed in the age of puberty between the N-Max and N-C animals, the U-Max rats displayed an advancement of puberty by 7 days in comparison to the U-C rats. Undernutrition did not affect female sexual maturation; however the Max condition delayed this process in both nutrition groups.
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