Resting Energy Metabolism in Intermittently Fed Weanling Rats

Heggeness, F. W.

doi:10.1093/jn/97.2.207

Cited by 5 publications

(6 citation statements)

References 10 publications

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“…Rate of oxygen consumption was calculated on the basis of 3 units of body size: namely, weight in g x h, weight in g0-75 x h, and weight in g°-63x h ; the reason for this is that, in spite of all the studies that have been conducted concerning the relation between oxygen consumption and body size, there is still no unanimity of opinion as to which is the most suitable [3,6,10].…”

Section: Methodsmentioning

confidence: 99%

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Duration of the Effect of Starving Neonatal Rats on the Magnitude of the Increase in VO<sub>2</sub> when Exposed to Cold, on Critical Temperature, and on Weight Gain

Blackmore¹

1973

Neonatology

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Some rats (T0) were with their mothers constantly until 21 days old, then fed ad libitum until 90 days old. Litter mates (T16) were separated from their mothers for 16 h a day for 6 days (2–8 days of age); then were with her constantly for 13 days, and fed ad libitum from 21 to 90 days of age. T0 animals had lower critical temperatures until about 45 days of age. T0 animals showed more increase in v̇O₂ per degree below critical temperature at all ages studied. T0 animals grew more rapidly until about 75 days old. The differences between T0 and T16 males were greater than those between T0 and T16 females. Evidence of delayed physiological maturity in the T16 animals is discussed.

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Section: Methodsmentioning

confidence: 99%

“…The fact that rats which are starved as neonates never attain the body size of nonstarved controls has been reported by numerous workers over a period of many years [7,9,10,[13][14][15]17]. Those reports have not emphasized the fact that difference in growth rate declines quite markedly with advancing age.…”

Section: Introductionmentioning

confidence: 99%

Duration of the Effect of Starving Neonatal Rats on the Magnitude of the Increase in VO<sub>2</sub> when Exposed to Cold, on Critical Temperature, and on Weight Gain

Blackmore¹

1973

Neonatology

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“…H eggeness [7,8] has shown that 3 days of ad libitum feeding alternated with 3 days of restricted feeding produces normal weight gain, increased carcass lipid, decreased carcass protein and decreased oxygen consumption. These observations are generally compatible with increased lipogenesis noted in tissues of meal-fed as compared to nibbling rats [1,[9][10][11][12][16][17][18],…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of the study was to compare effects of this more severe dietary aberration to Heggeness's results [7,8] and to correlate changes in body composition with those of tissue metabolism.…”

Section: Introductionmentioning

confidence: 99%

Effects of Intermittent Feeding on Rat Adipose Tissue and Diaphragm Metabolism

Goldman¹

1972

Ann Nutr Metab

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Effects of intermittent feeding were studied in rats fasted and fed for alternating 3-day periods. After 30 days, rats were sacrified and food intake, weight gain and carcass lipid measured. Fat pads and hemidiaphragms were incubated with U-¹⁴C-glucose or 1–¹⁴C-palmitate. Oxidation and incorporation into tissue lipids were analyzed. Compared to rats fed ad libitum, intermittently fed and fasted animals ate 50% less food, gained 75% less weight and had greater carcass lipid content per gram of weight. Glucose incorporation into lipid was increased in diaphragm and adipose tissue, but oxidation and incorporation into glycogen were increased only in the latter tissue. Palmitate oxidation was unchanged in either tissue, but incorporation into adipose tissue lipid fractions was increased. Conclusions are that intermittent feeding reduces caloric efficiency, stimulates lipogenesis and glucose oxidation, and results in a relative excess of body fat even in the presence of undernutrition.

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“…On the basis of these results, they suggest that the apparent greater food efficiency of meal-fed animals may result from less physical activity and the ensuing reduced energy expenditure. Heggeness (1969), on the other hand, inferred that differences in food efficiency and body composition associated with intermittent feeding may be partially due to modification of thyroid activity. He found that animals fed ^ libitum showed a transient increase in resting oxygen consumption while the resting metabolic rate of meal-fed animals showed no comparable increase.…”

Section: Excretionmentioning

confidence: 99%

Biosynthesis of retinol as affected by dietary protein and feeding patterns in carotene-fed rats

Stoecker

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Resting Energy Metabolism in Intermittently Fed Weanling Rats

Cited by 5 publications

References 10 publications

Duration of the Effect of Starving Neonatal Rats on the Magnitude of the Increase in VO<sub>2</sub> when Exposed to Cold, on Critical Temperature, and on Weight Gain

Duration of the Effect of Starving Neonatal Rats on the Magnitude of the Increase in VO<sub>2</sub> when Exposed to Cold, on Critical Temperature, and on Weight Gain

Effects of Intermittent Feeding on Rat Adipose Tissue and Diaphragm Metabolism

Biosynthesis of retinol as affected by dietary protein and feeding patterns in carotene-fed rats

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