Meal pattern analysis: artifacts, assumptions and implications

Castonguay, Thomas W.; Kaiser, Lucía; Stern, Judith S.

doi:10.1016/0361-9230(86)90252-2

Cited by 99 publications

(52 citation statements)

References 12 publications

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“…Correlation coefficients between meal size and pre-and post-meal intervals, meal duration, and the size of the following meal were not improved when longer meal criterion were used; this contrasted with the results of de Castro [7] and Castonguay et al [4] in rats. For this reason, a 2-min meal criterion was chosen to compare the correlation coefficients.…”

Section: Discussioncontrasting

confidence: 69%

Effects of high ambient temperature and dietary protein level on feeding behavior of multiparous lactating sows

et al. 2002

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-Thirty-three multiparous Large White sows were used to determine the effect of high ambient temperature and level of dietary heat increment on their feeding behavior during lactation. Ambient temperature was maintained constant at 20 or 29 o C over 28-d lactation. The experimental diets fed during lactation were a control diet (NP; 17.6% crude protein) and two low protein diets obtained by the reduction of the CP level (LP, 14.6% CP) or both the reduction of CP and addition of 4% fat (LPF, 15.2% CP). The sows were given feed ad libitum between the 7th and the 27th day of lactation. Feeding behavior parameters were not influenced by diet composition. Between d 7 and d 27, daily feed intake decreased at 29 o C (P < 0.001; 4149 vs. 7444 g·d -1 at 20 o C); this was achieved by a concomitant reduction in meal frequency (P < 0.001; 6.5 vs. 9.4 meals·d -1 ) and in meal size (P < 0.10; 687 vs. 834 g per meal). The ingestion rate was not influenced by temperature (126 g·min -1 on average), and consequently the reduction of daily feed intake resulted in a decreased ingestion and consumption time (-25 and 28 min·d -1 , respectively). The proportion of small meals (i.e., < 250 g) was higher whereas that of medium sized meals (i.e., 250-1000 g) was lower at 29 o C. Diurnal feed and water intakes represented 84% and 79% of total consumption, respectively. Two peaks in feed were observed, the first one between 07.00 and 13.00 at both temperatures and the second one that was shorter at 29 o C (17.00 to 23.00 vs. 14.00 to 23.00 at 20 o C). Standing activity averaged 127 min·d -1 with no significant difference between temperatures. About 70% of standing time was dedicated to feed and water consumption. As determined by the calculation of correlation coefficients between post-or pre-prandial interval and meal size, this latter seems to be partly regulated by satiety mechanisms in most sows (67%). Anim. Res. 51 (2002) 227-243  INRA, EDP Sciences, 2002 DOI: 10.1051/animres:2002020Résumé -Effets des températures ambiantes élevées et du taux de protéines dans l'aliment sur le comportement alimentaire des truies multipares en lactation. Trente-trois truies multipares Large White × Landrace ont été utilisées pour déterminer l'effet d'une élévation de la température ambiante et du niveau d'extra chaleur alimentaire sur leur comportement alimentaire au cours de la lactation. La température ambiante est maintenue constante à 20 ou 29 o C au cours des 28 jours de lactation. Trois régimes expérimentaux ont été utilisés au cours de la lactation : un régime témoin (NP ; 17,6 % de matières azotées totales, MAT) et deux régimes à faible teneur en protéines (LP ; 14,6 % MAT) ou avec une réduction de la teneur en protéines et un ajout de matières grasses (LPF, 15,2 % MAT). L'aliment est distribué à volonté du 7 e au 27 e jour de lactation. Les paramètres du comportement alimentaire ne sont pas influencés par la composition des régimes. Entre le 7 e et le 27 e jour de lactation, la diminution de la consommation d'aliment à 29 o C (P < 0,...

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Section: Discussioncontrasting

confidence: 69%

Effects of high ambient temperature and dietary protein level on feeding behavior of multiparous lactating sows

et al. 2002

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“…These criteria include those reported to be most effective in separating the log-survivorship curve for interbout intervals into within-meal and between-meal intervals. Castonguay et al (14) found that a 10-min intermeal interval was shown to be the mean interval time between feeding episodes for rats that had >400 feeding intervals over a 7-d period (a similar time frame was used in our present study). In addition, we chose a 10-min intermeal interval because Castonguay et al (14) also found that the statistical relation between the intermeal interval and meal size is strengthened with longer end-of-themeal definitions.…”

Section: Methodssupporting

confidence: 52%

“…The end of the meal was registered when there was >10 min without energy intake. These criteria are based on previous research by others (14), and we have tested them under a variety of feeding conditions (8,15). These criteria include those reported to be most effective in separating the log-survivorship curve for interbout intervals into within-meal and between-meal intervals.…”

Section: Methodsmentioning

confidence: 99%

Jejunal Infusion of Glucose Decreases Energy Intake to a Greater Extent than Fructose in Adult Male Rats

Moghadam

Moran

Dailey

2016

The Journal of Nutrition

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“…Meal number, meal duration (s), meal size (g) and ingestion rate (g/min) were then determined. The food intake signal was analyzed as follows: a meal needed to be larger than 0.1 g and longer than 10 s and two distinct meals needed to be separated by an Inter Meal Interval (IMI) of 10 min [2,5,13]. We evaluated the data using different IMI (between 1 and 10 min) and this did not appreciably change the results (data not shown).…”

Section: Experiments 3: Meal Pattern Analysis After I3vt Administratiomentioning

confidence: 99%

Effects of MCH and a MCH1-receptor antagonist on (palatable) food and water intake

Morens

Nørregaard²,

Receveur³

et al. 2005

Brain Research

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Receveur, J-M. (2005). Effects of MCH and a MCH1-receptor antagonist on (palatable) food and water intake. Brain-research, 1062(1-2), 32-38. DOI: 10.1016DOI: 10. /j.brainres.2005 Copyright Other than for strictly personal use, it is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license (like Creative Commons).Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. AbstractMelanin concentrating hormone (MCH) is a regulator of ingestive behavior, but several issues regarding its effects on specific components of ingestive behavior remain to be elucidated. Therefore, we injected, in the 3rd ventricle of male Wistar rats, saline, MCH (5 Ag), MCH (5 Ag) together with a MCH1-R antagonist (A, 10 Ag) and the antagonist alone (A, 10 Ag). Our results show that (1) central administration of MCH stimulates food intake (lab chow and medium high fat diet) and this can be blocked by a MCH1-R antagonist; (2) the MCH-induced increase in food intake is mediated through increased meal number, meal duration and meal size; (3) the MCH1-R antagonist is able to significantly reduce the intake of a highly palatable food (condensed sweet milk) and is more effective in blocking MCH-induced food intake when rats are fed a palatable medium high fat food; and (4) MCH stimulated water intake independently from and disproportionately to food intake. In conclusion, our results point to an involvement of endogenous MCH in the enhanced intake of palatable food. Furthermore, they confirm that MCH stimulates not only food intake but also water intake. D

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Meal pattern analysis: artifacts, assumptions and implications

Cited by 99 publications

References 12 publications

Effects of high ambient temperature and dietary protein level on feeding behavior of multiparous lactating sows

Effects of high ambient temperature and dietary protein level on feeding behavior of multiparous lactating sows

Jejunal Infusion of Glucose Decreases Energy Intake to a Greater Extent than Fructose in Adult Male Rats

Effects of MCH and a MCH1-receptor antagonist on (palatable) food and water intake

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