Influences of time intervals between meals and total food intake on resting metabolic rate in rats

1995 ◽  
Vol 153 (3) ◽  
pp. 243-247 ◽  
Author(s):  
I. C. MUNCH
Keyword(s):  
Food Intake ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Time Intervals ◽  
Total Food Intake ◽  
Total Food

Effect of adrenalectomy and corticosterone replacement on meal patterns of Zucker rats

1985 ◽  
Vol 249 (5) ◽  
pp. R584-R594 ◽  
Author(s):  
M. R. Freedman ◽  
T. W. Castonguay ◽  
J. S. Stern
Keyword(s):  
Weight Gain ◽  
Food Intake ◽  
Body Weight Gain ◽  
Zucker Rats ◽  
Meal Frequency ◽  
Light Cycle ◽  
Dark Cycle ◽  
Meal Patterns ◽  
Total Food Intake ◽  
Total Food

Male obese and lean Zucker rats were adrenalectomized (ADX) or sham-operated at 10 wk of age. Approximately 16 wk later, patterns of food intake were monitored by computer-interfaced top loading balances. Data were collected from ADX rats before, during, and after access to a corticosterone-supplemented saline solution (20 micrograms/ml). Although total food intake during the precorticosterone treatment period was not different between ADX and sham controls, ADX resulted in attenuation of light cycle food intake, primarily via decreased meal frequency. With steroid replacement, light cycle meal frequency and food intake increased. Despite comparable self-administered dose (20.33 +/- 0.89 vs. 17.05 +/- 1.2 mg corticosterone/period, obese vs. lean), obese ADX rats were more responsive to steroid than were lean ADX rats. This increased responsiveness was reflected by a 30% increase in food intake and 60% increase in body weight gain of obese ADX rats during replacement. Lean ADX rats exhibited no change in total food intake or weight gain with replacement. Further, during corticosterone treatment, obese ADX rats increased meal frequency, total food intake, and consumption of large meals (greater than or equal to 4 g) during the dark cycle. Significant postprandial correlations were found only in obese ADX rats, both with and without replacement during the dark cycle. These results suggest adrenal glucocorticoids have a minimal effect on food intake and meal patterns in lean Zucker rats but significantly alter intake and meal patterns in obese rats.

scholarly journals STUDIES ON THE TOTAL BILE

1924 ◽  
Vol 40 (1) ◽  
pp. 25-42 ◽  
Author(s):  
Philip D. McMaster
Keyword(s):  
Food Intake ◽  
Gall Bladder ◽  
Total Food Intake ◽  
Total Food ◽  
Additional Amount ◽  
Ordinary Diet

The development of a method for the collection of total bile from dogs in a sterile state and uninfluenced by the gall bladder, day after day for weeks, has rendered possible an accurate study of the influence of diet upon the cholesterol output of the secretion. When a diet rich in cholesterol is given the amount of the substance in the bile greatly increases. Not only this but the concentration per cc. is, in almost every instance, greater. An increase in the total food intake, by the addition to the ordinary ration of a bone mash diet containing only a slight additional amount of cholesterol (200 mg.) produces a similar, though lesser, increase. In the fasting dog, the cholesterol yield is greatly cut down. The increase in the cholesterol after food rich in the substance does not depend on the cholagogue action of this latter, though it is true that the concentration of cholesterol in the bile usually increases with the bile volume. Though fasting cuts down the cholesterol of bile, the concentration of the substance per cc. is greatly increased. On an ordinary diet the yield of it fluctuates abruptly and considerably from day to day. In general the rule holds that an animal eating largely puts out not only much more bile but much more cholesterol. The relation between bile quantity and cholesterol yield is anything but a fixed one, however. The cholesterol yield of the bile does not parallel that of bilirubin. The pigment output from day to day remains relatively constant as compared with that of cholesterol.

The food intake and growth of Australian feral cross Angora kids when fed whole grain barley-lupins diets with three levels of roughage intake

1984 ◽  
Vol 24 (124) ◽  
pp. 77 ◽  
Author(s):  
BA McGregor
Keyword(s):  
Food Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Barley Grain ◽  
Whole Grain ◽  
Total Food Intake ◽  
Total Food ◽  
Ad Libitum ◽  
Ad Libitum Feeding ◽  
Basal Ration

Kids six months old and of mean liveweight 22 kg were offered a basal ration of barley and lupins (crude protein 15 .4%) supplemented with three levels of chopped hay (0, 13% of total intake and ad libitum). Supplementation of the basal ration with 13% hay increased total dry matter intake from 479 to 753 g/d (P< 0.001) and liveweight gain from 10 to 54 g/d (P<0 .01). Non-significant increases in total food intake and liveweight gains were achieved by supplementing with ad libitum hay; kids fed ad libitum hay actually consumed 26.9% of their diet as hay. They were then offered various mixtures of barley, oats and lupins with 13% chopped hay at near ad libitum feeding. Differences in intake or growth were not significant at P= 0.05 with kids growing at 74, 65 and 101 g/d for those fed barley, oats and lupins respectively. Results indicate that highest food intake was obtained when 13% chopped hay was added to whole barley grain rations.

Diet selection in pigs: choices made by growing pigs given foods of different protein concentrations

1990 ◽  
Vol 51 (1) ◽  
pp. 189-199 ◽  
Author(s):  
I. Kyriazakis ◽  
G. C. Emmans ◽  
C. T. Whittemore
Keyword(s):  
Growth Rate ◽  
Food Intake ◽  
Protein Concentration ◽  
Live Weight ◽  
Diet Selection ◽  
Growing Pigs ◽  
Growth Potential ◽  
Feeding Method ◽  
Total Food Intake ◽  
Total Food

ABSTRACTTo test the proposition that growing pigs, when given a choice between two foods, are able to select a diet that meets their requirements, and to investigate the rules of diet selection, four foods (L, A, B and H) with similar energy yields, but different concentrations of crude protein (CP) (125, 174, 213 and 267 g CP per kg fresh food respectively) were formulated. The four foods were offeredad libitumeither singly, or as a two-way choice using all the six possible pairs, to 40 individually caged pigs from 12 to 30 kg live weight. On the single foods the rate of food intake fell from 1001 to 971 to 961 to 868 (s.e.d. 40) g/day (F < 0·05) as the protein concentration of the foods increased from L to H; the growth rate followed an opposite trend (492, 627, 743 and 693 (s.e.d. 31) g/day respectively;P< 0·01). When the pigs had to select between two foods limiting in protein (L and A) the less limiting one was preferred (710 (s.e. 200) g A per kg total food intake; the protein concentration of the selected diet was 160 (s.e. 10) g CP per kg). On the choice between B and H (a choice between a food with protein concentration close to requirements and a food with protein excess) the lower food was markedly preferred (928 (s.e. 4) g B per kg total food intake; the protein concentration of the selected diet was 218 (s.e. 1) g CP per kg). When the animals were given a choice between two foods, a combination of which was non-limiting (pairs LB, LH, AB and AH), the protein concentrations of the selected diets were not different between treatments (208, 204, 202 and 205 (s.e.d. 13) g CP per kg respectively) and they also declined systematically with time and weight. The growth rate of the animals on these pairs were 752, 768, 769 and 763 (s.e.d. 54) g/day (P > 0·05), which were not significantly different from the highest growth rate achieved on a single food. The results suggest that pigs, when given a choice between a suitable pair of foods, are able to choose a balanced diet and to change its composition to reflect their changing requirements. The choice-feeding method may well be useful as an effective and economic way of estimating and meeting requirements, and of measuring the growth potential of pigs.

scholarly journals Ghrelin Receptor Regulates Appetite and Satiety during Aging in Mice by Regulating Meal Frequency and Portion Size but Not Total Food Intake

2014 ◽  
Vol 144 (9) ◽  
pp. 1349-1355 ◽  
Author(s):  
Ligen Lin ◽  
Alli M. Nuotio-Antar ◽  
Xiaojun Ma ◽  
Feng Liu ◽  
Marta L. Fiorotto ◽  
...  
Keyword(s):  
Food Intake ◽  
Portion Size ◽  
Meal Frequency ◽  
Ghrelin Receptor ◽  
Total Food Intake ◽  
Total Food

scholarly journals THE EFFECT OF AMORPHOPHALLUS MUELLERI BLUME AND MORINGA OLEIFERA L LEAVES ON BODY WEIGHT, FEED INTAKE, AND HEPATIC HISTOPATHOLOGY IN MICE

2021 ◽  
pp. 82-87
Author(s):  
DIAN RATIH LAKSMITAWATI ◽  
UMI MARWATI ◽  
YATI SUMIYATI ◽  
DIAH KARTIKA PRATAMI ◽  
INTAN PERMATA SARI
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Feed Intake ◽  
Moringa Oleifera ◽  
Control Diet ◽  
Total Food Intake ◽  
Total Food ◽  
Lower Body Weight ◽  
And Control ◽  
Hepatic Histopathology

Objective: This study aims to determine the effect of Amorphophallus muelleri Blume and Moringa oleifera L leaf on body weight, food intake, and hepatic histopathology in mice. Methods: The mice were divided into five groups according to their diet, which includes porang, wheat, porang-moringa, wheat-moringa, and control diet. Each group consists of 5 males and 5 females, which were fed for 28 d, and then analyzed for their body weight, total food intake, alanine aminotransferase (ALT) as well as aspartate aminotransferase (AST) levels in plasma, and hepatic histopathology. Results: The result showed that the group of porang and porang-moringa has lower body weight and feed intake, which is significantly different compared to the others. Furthermore, an increase was observed on plasma AST/ALT activities in 30% porang and 20% porang-moringa group. Also, one of the mice of porang group has inflammatory cell infiltration (++) on histopathology results. Conclusion: It was therefore concluded that feeding containing porang causes low food consumption. Furthermore, weight loss increases AST/ALT and leukocyte infiltration even though a mouse consistently deteriorates.

Acute and chronic gastrin-releasing peptide decreases food intake in baboons

1985 ◽  
Vol 248 (5) ◽  
pp. R578-R583 ◽  
Author(s):  
D. P. Figlewicz ◽  
L. J. Stein ◽  
S. C. Woods ◽  
D. Porte
Keyword(s):  
Insulin Secretion ◽  
Food Intake ◽  
Basal Insulin ◽  
Low Dose ◽  
Chronic Administration ◽  
Gastrin Releasing Peptide ◽  
Total Food Intake ◽  
Total Food ◽  
Basal Insulin Secretion ◽  
Stimulation Of

Gastrin-releasing peptide (GRP) is a peptide structurally related to bombesin that appears to be localized to the mammalian gastrointestinal tract. This study examined the ability of GRP, when administered on either an acute or chronic basis, to suppress food intake in baboons. When administered at 8 micrograms/kg iv before a morning meal, GRP significantly suppressed both food intake and the postprandial rise of plasma glucose and insulin. GRP at doses of 1, 2, 4, and 8 micrograms/kg stimulated basal insulin secretion. Chronic administration of GRP (q.o.d. for 11 days) at a low dose before the A.M. meal resulted in suppression of the A.M. meal and an initial suppression of total food intake, which recovered before the end of the treatment period. In conclusion, GRP appears to be effective in acute suppression of food intake and stimulation of basal insulin secretion in the nonhuman primate.

scholarly journals Effects of stochastic food deprivation on energy budget, body mass and activity in Swiss mice

2009 ◽  
Vol 55 (4) ◽  
pp. 249-257 ◽  
Author(s):  
Zhijun Zhao ◽  
Jing Cao ◽  
Ye Tian ◽  
Ruirui Wang ◽  
Guiying Wang
Keyword(s):  
Food Intake ◽  
Metabolic Rate ◽  
Body Mass ◽  
Food Deprivation ◽  
Energy Budget ◽  
Resting Metabolic Rate ◽  
General Activity ◽  
Swiss Mice ◽  
Ad Libitum ◽  
Shivering Thermogenesis

Abstract When small animals are faced with an unpredictable food supply, they can adapt by altering different components of their energy budget such as energy intake, metabolic rate, rate of non-shivering thermogenesis (NST) or behaviour. The present study examined the effect of stochastic food deprivation (FD) on body mass, food intake, resting metabolic rate (RMR), NST and behaviour in male Swiss mice. During a period of 4 weeks’ FD, animals were fed ad libitum for a randomly assigned 4 days each week, but were deprived of food for the other 3 days. The results showed that body mass significantly dropped on FD days compared to controls. Food intake of FD mice increased significantly on ad libitum days, ensuring cumulative food intake, final body mass, fat mass, RMR and NST did not differ significantly from controls. Moreover, gastrointestinal tract mass increased in FD mice, but digestibility decreased. In general, activity was higher on deprived days, and feeding behaviour was higher on ad libitum days suggesting that Swiss mice are able to compensate for stochastic FD primarily by increasing food intake on ad libitum days, and not by reducing energy expenditure related to RMR or NST.

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