Changes in Body Composition and Efficiency of Food Utilization for Growth in Young Adult Female Rats Before, During and After a Period of Food Restriction

Williams, VJ; Senior, William

doi:10.1071/bi9790041

Cited by 16 publications

(2 citation statements)

References 16 publications

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“…Following weaning there was marked compensatory growth. Such effects are well documented in livestock (Wilson & Osbourn, 1960) and appear to result from an intake that is high in relation to the body weight of handicapped individuals (Williams & Senior, 1979).…”

Section: Discussionmentioning

confidence: 98%

Energy partitioning and growth in mice selected for high and low body weight

Stephenson¹,

Malik²

1984

Genet. Res.

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SUMMARYThe partitioning of digestible energy intake on an ad libitum diet of standard mouse nuts was investigated in mice selected for high and low body weight at eight weeks and in an unselected control population. In selected mice aged from four to six weeks and housed at a temperature of 24·5 °C, almost all their energy intake could be attributed to basic maintenance and the deposition of extra protein and fat. Control mice, however, had an energy intake considerably in excess of their apparent maintenance and growth requirements. It was concluded that the unaccountable energy loss of the control line could be used to increase growth efficiency in the selected lines. The result is analogous to those obtained from studies on normal and obese mouse genotypes and indicates genetic changes in mechanisms controlling the conversion of food energy to heat.Provision of a nest to reduce thermoregulatory heat production caused a minor reduction in energy intake and a corresponding decrease in the energy discrepancy. There was no effect on growth.

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Section: Discussionmentioning

confidence: 98%

Energy partitioning and growth in mice selected for high and low body weight

Stephenson¹,

Malik²

1984

Genet. Res.

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“…decreases as a result of a short term adaptation to the reduced food intake. Conversely when the energy intake of previously underfed individuals is increased and maintained at a constant level, initial weight gain is extremely rapid followed by a diminished rate of gain, and this effect has been demonstrated in both human and animal subjects (Williams and Senior, 1979). Therefore, it seems that the lower rate of weight gain noted in the later stage of refeeding may be caused by a loss in the rate of metabolic energy conversion and "a very slow recovery to normal pre-fasting B.M.R."…”

Section: Land Food and Work In East Javamentioning

confidence: 93%

Individual variations in basal metabolic rate and mechanical work efficiency in east java

Edmundson

1979

Ecology of Food and Nutrition

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Prediction of total body lipid from total body water in rats. Part 1. Relations between directly measured major body components

Zahn

Freund

Hoppe

et al. 1991

Nahrung

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Aimed to the construction of a prediction equation for estimations of lipid content from animal water content body composition was determined by whole body analysis of male rats (1) given access, ad libitum, to a commercial standard diet (n = 144; ranging from 60 to 600 g in weight, and from the 4th to the 34th week of age), and (2) showing striking variations with regard to nutritional state, dietary history, enlarged fat deposition, genetic origin, intestinal microbial status, and advanced age (n = 75). It was shown that a unique coefficient of water content in lipid-free body mass does not exist. The results of statistical analysis for the grouped values of percentage body dry matter (x) and percentage body lipid (y) indicate that the latter can be estimated accurately from body water content directly determined by the use of the quadratic regression equation y = -0.2864 x +0.01615 x2 with a standard deviation of the procedure Sy = +/- 1.40. This prediction equation is valid for a wide developmental span even under highly different experimental states. Differences between the calculated body lipid contents vs. analytically determined values are smaller than by using a linear regression equation or coefficient(s) of hydration of lipid-free body mass.

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Changes in Body Composition and Efficiency of Food Utilization for Growth in Young Adult Female Rats Before, During and After a Period of Food Restriction

Cited by 16 publications

References 16 publications

Energy partitioning and growth in mice selected for high and low body weight

Energy partitioning and growth in mice selected for high and low body weight

Individual variations in basal metabolic rate and mechanical work efficiency in east java

Prediction of total body lipid from total body water in rats. Part 1. Relations between directly measured major body components

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