Feeding patterns in rats on restricted access schedules: Palatability, bulk, and other determinants of intake

Rowland, Neil E.

doi:10.3758/bf03333253

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…When the quinine-flavored milk was available, the NI rats showed some nibbling, or meal fragmentation, and slow within-bout ingestive rates (i.e., the lick rate was slow, similar to the low feeding rate of hungry rats eating quinine-adulterated solid food; Rowland, 1975). A qualitatively similar fragmentation was observed in every one of the rats bearing LHA lesions when drinking sweet milk.…”

Section: Resultsmentioning

confidence: 84%

Fragmented behavior sequences in rats with lateral hypothalamic lesions: An alternative reason for intrameal prandial drinking.

Rowland

1977

Journal of Comparative and Physiological Psychology

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Rats in Stages 3 or 4 after lateral hypothalamic lesions were studied in a number of feeding situations. As expected, these animals showed intrameal prandial drinking when dry food and water were available. Meals of liquid diet were interrupted by short bouts of activity, and saccharin drinking in Stage 3 was composed of many small drafts. It is suggested that these animals have a propensity to interrupt ongoing behaviors (fragmentation), which can account for general activity and wheel running that occur along with intrameal prandial drinking. The probability of drinking during meals was decreased with water infusions and increased with NaCl infusion. When they were hungry, recovered laterals ate 4.5 g of dry food without pausing to drink. These new data raise questions concerning the state of the salivary-insufficiency (dry mouth) explanation of intrameal drinking; the fragmentation hypothesis can incorporate the data, and the possible neural correlates of this fragmentation are discussed.

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Section: Resultsmentioning

confidence: 84%

Fragmented behavior sequences in rats with lateral hypothalamic lesions: An alternative reason for intrameal prandial drinking.

Rowland

1977

Journal of Comparative and Physiological Psychology

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“…Following a single period of food deprivation, meal size depends on both the duration of deprivation and the circadian timing of meal initiation (Bellinger & Mendel, 1975); that is, food intake reflects concurrent demands of both homeostatic and circadian regulatory processes. When a rat is limited to a 2-h meal provided at the same time each day, the size of the meal increases for at least 7 days (Rowland, 1975), and in some cases for 14 days or more, before stabilizing (Mistlberger, unpublished observations). This paralleis the rate of entrain-ment of gastroenteric enzyme rhythms by daily feeding schedules (Suda & Saito, 1979).…”

Section: Potential Circadian Confoundsmentioning

confidence: 99%

Circadian pitfalls in experimental designs employing food restriction

Mistlberger

1990

Psychobiology

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Anticipation of Daily Mealtime in the Rat: Regulation by Circadian Clocks Richter (1922) was the first to demonstrate that timed food availability ean influenee daily rhythms of behavior in the rat. Although Richter utilized eonstant light in his initial studies, the effects are more easily deseribed for rats recorded under a standard 12: 12 h LD cycle. Such rats display predominantly nocturnal rhythms of wheelrunning and ingestive behavior (Figure lA). If food is restrieted to the middle of the light period, nocturnal aetivity is usually attenuated and a new bout of activity emerges in the day (Figure IB). This bout of activity typi-

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“…Palatability aIso seems to be reflected in feeding rate. Rowland (1975) demonstrated that adult male Wistar rats receiving a palatable saccharin sweetened chow, increased their feeding rates. Similarly, in adult male Sprague-Dawley rats on a foraging paradigm, fed either cereal-based (21 % protein, 57% carbohydrate, 4% fat) or casein-based (18% casein, 63% sucrose, 6% fat) pelleted diets, meal patterns were found to be sensitive to subtle differences in diets, for example, casein-based pellets tended to be hard and dustless compared to those that were cereal-based (Johnson et al 1984).…”

Section: Palatability and Meal Patternsmentioning

confidence: 99%

Effect of Diet Textural Characteristics on the Temporal Rhythms of Feeding in Rats

Mok

Thibault

1998

Physiology & Behavior

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Feeding patterns in rats on restricted access schedules: Palatability, bulk, and other determinants of intake

Cited by 7 publications

References 7 publications

Fragmented behavior sequences in rats with lateral hypothalamic lesions: An alternative reason for intrameal prandial drinking.

Fragmented behavior sequences in rats with lateral hypothalamic lesions: An alternative reason for intrameal prandial drinking.

Circadian pitfalls in experimental designs employing food restriction

Effect of Diet Textural Characteristics on the Temporal Rhythms of Feeding in Rats

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