Error in Estimation of Feeding Rates from Changes in Mean Body Mass

1988 ◽  
Vol 45 (8) ◽  
pp. 1494-1498 ◽  
Author(s):  
P. A. Cochran ◽  
K. J. Knutsen
Keyword(s):  
Food Intake ◽  
Food Consumption ◽  
Body Mass ◽  
Micropterus Salmoides ◽  
Feeding Rates ◽  
Growth Data ◽  
Typical Application ◽  
Consumption Rates ◽  
Actual Field ◽  
Change In Mean

Because of nonlinear relationships between body mass and many parameters in energetics models, rates of food intake calculated from change in mean body mass (a typical application of energetics models) do not necessarily equal true mean rates of food intake calculated from individual changes in body mass. Using both hypothetical data and actual field data for largemouth bass (Micropterus salmoides) marked with individually numbered tags, we show that discrepancies increase with variability in body mass but are negligible (< 3.5%) in all cases examined. Biased estimates of change in mean body mass, such as might result from size-selective mortality or sampling gear, can lead to substantial errors in energetics model estimates of mean food consumption rates. Use of growth data for individually marked fish in conjunction with an energetics model permits calculation of confidence intervals, statistical comparison of food consumption rates, and examination of relationships between foraging success and individual body mass.

Evaluation of a Method for Estimating Food Consumption Rates of Fish

1973 ◽  
Vol 30 (5) ◽  
pp. 623-629 ◽  
Author(s):  
Robert F. Carline ◽  
James D. Hall
Keyword(s):  
Food Consumption ◽  
Coho Salmon ◽  
Oncorhynchus Kisutch ◽  
Growth Efficiency ◽  
Behavior Patterns ◽  
Growth Data ◽  
Wide Range ◽  
Consumption Rates ◽  
Similar Growth ◽  
Experimental Stream

A method of estimating food consumption rates of fish in nature from laboratory growth data was evaluated using juvenile coho salmon (Oncorhynchus kisutch) in three similar experiments. One group of coho was held individually in aquariums where movement was restricted. Another group was maintained in an experimental stream where the coho displayed many of their typical behavior patterns. All fish were fed known rations and both groups had similar growth efficiencies over a wide range of rations. Coho feeding at intermediate rates had the highest gross efficiencies. Aggressive activity did not affect growth efficiency. Results suggested that laboratory food and growth data may provide reasonably accurate estimates of food consumption of coho salmon in nature.

scholarly journals Remembered Meal Satisfaction, Satiety, and Later Snack Food Intake: A Laboratory Study

Nutrients ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1883 ◽  
Author(s):  
Victoria Whitelock ◽  
Eric Robinson
Keyword(s):  
Body Mass Index ◽  
Standard Deviation ◽  
Food Intake ◽  
Food Consumption ◽  
Body Mass ◽  
Laboratory Study ◽  
Negative Correlation ◽  
Meal Size ◽  
Snack Food ◽  
Rehearsal Condition

It is well established that the satiety providing effects of food can influence meal size and a disparate area of research suggests that memory regarding recent eating informs food intake. Here we examined whether remembered meal satisfaction (encompassing memory for meal liking and satiety) can be manipulated in the laboratory and whether this influences later food intake. Participants (N = 128, body mass index mean = 23.46kg/m2, standard deviation = 4.70) consumed a fixed lunch and then rehearsed the satisfying or dissatisfying aspects of the meal, or a neutral experience (control), in order to manipulate memory for meal satisfaction. Three hours later participants completed a bogus taste-test to measure food intake and meal memory measures. There was no evidence that memory for general satisfaction with the meal was affected by the rehearsal condition. However, in the dissatisfying rehearsal condition, participants remembered being less satisfied with the satiety-providing effects of the lunch meal than in the satisfying and neutral rehearsal conditions. Snack food consumption did not differ across conditions and there was a small negative correlation between how satiating participants remembered their earlier meal to be and later snack food intake (r = −0.16, p = 0.07). The present study did not produce evidence that memory relating to meal satiety affects later food intake but further research is warranted.

Cereal Consumption, Production, and Prices in West Pakistan (Notes & Comments)

1968 ◽  
Vol 8 (2) ◽  
pp. 288-306 ◽  
Author(s):  
G. C. Hufbauer
Keyword(s):  
Food Consumption ◽  
Ad Hoc ◽  
Dry Weight ◽  
Small Sample ◽  
Tax Rates ◽  
Active Population ◽  
Early Settlement ◽  
Consumption Rates ◽  
Late Nineteenth ◽  
Better Than

In the late nineteenth and early twentieth centuries, several Punjab Settlement Officers attempted to estimate food consumption rates. These estimates, based on direct observation and ad hoc guesses, were made partly out of academic curiosity, but more urgently, as an aid in establishing the land revenue (i.e., tax) rates. The pre-1926 estimates are summarized in Table I, expressed in pounds of wheat and other foodgrain consumption per person per year1. Broadly speaking, the later, more systemtic observers (e.g., Sir Ganga Ram and C. B. Barry), found lower consumption levels than the earlier observers. It was generally accepted that the rural populace ate better than urban dwellers. Despite the ingenuity of the early Settlement Officers, their compiled estimates suffer from all the difficulties of haphazard small sample observation. Given the revenue purpose of the estimates, they may be biased towards the able-bodied, economically active, population. Further, the very early estimates may have confused dry weight with cooked weight, including water.

scholarly journals Effect of ultraprocessed food intake on cardiometabolic risk is mediated by diet quality: a cross-sectional study

2021 ◽  
pp. bmjnph-2020-000225
Author(s):  
Jennifer Griffin ◽  
Anwar Albaloul ◽  
Alexandra Kopytek ◽  
Paul Elliott ◽  
Gary Frost
Keyword(s):  
Food Intake ◽  
Energy Intake ◽  
Food Consumption ◽  
Outcome Measures ◽  
Diet Quality ◽  
Cardiometabolic Risk ◽  
Saturated Fat ◽  
Secondary Outcome ◽  
Cross Sectional ◽  
Occupational Cohort

ObjectiveTo examine the effect of the consumption of ultraprocessed food on diet quality, and cardiometabolic risk (CMR) in an occupational cohort.DesignCross-sectional.SettingOccupational cohort.Participants53 163 British police force employees enrolled (2004–2012) into the Airwave Health Monitoring Study. A total of 28 forces across the UK agreed to participate. 9009 participants with available 7-day diet record data and complete co-variate data are reported in this study.Main outcome measuresA CMR and Dietary Approaches to Stop Hypertension score were treated as continuous variables and used to generate measures of cardiometabolic health and diet quality. Secondary outcome measures include percentage of energy from fat, saturated fat, carbohydrate, protein and non-milk extrinsic sugars (NMES) and fibre grams per 1000 kcal of energy intake.ResultsIn this cohort, 58.3%±11.6 of total energy intake was derived from ultraprocessed (NOVA 4) foods. Ultraprocessed food intake was negatively correlated with diet quality (r=−0.32, p<0.001), fibre (r=−0.20, p<0.001) and protein (r = −0.40, p<0.001) and positively correlated with fat (r=0.18, p<0.001), saturated fat (r=0.14, p<0.001) and nmes (r=0.10, p<0.001) intake . Multivariable analysis suggests a positive association between ultraprocessed food (NOVA 4) consumption and CMR. However, this main effect was no longer observed after adjustment for diet quality (p=0.209). Findings from mediation analysis indicate that the effect of ultraprocessed food (NOVA 4) intake on CMR is mediated by diet quality (p<0.001).ConclusionsUltraprocessed food consumption is associated with a deterioration in diet quality and positively associated with CMR, although this association is mediated by and dependent on the quality of the diet. The negative impact of ultraprocessed food consumption on diet quality needs to be addressed and controlled studies are needed to fully comprehend whether the relationship between ultraprocessed food consumption and health is independent to its relationship with poor diet quality.

Effects of neurosecretory protein GL on food intake and fat accumulation under different dietary nutrient compositions in rats

2021 ◽  
Author(s):  
Keisuke Fukumura ◽  
Kenshiro Shikano ◽  
Yuaki Narimatsu ◽  
Eiko Iwakoshi-Ukena ◽  
Megumi Furumitsu ◽  
...  
Keyword(s):  
Food Intake ◽  
Feeding Behavior ◽  
Body Mass ◽  
Mass Gain ◽  
Chow Diet ◽  
Tissue Mass ◽  
Fat Accumulation ◽  
Intracerebroventricular Infusion ◽  
Body Mass Gain ◽  
Sucrose Diet

Abstract We recently identified a novel hypothalamic small protein, named neurosecretory protein GL (NPGL), which is involved in energy homeostasis in birds and mammals. However, whether the action of NPGL is influenced by nutritional composition remains unknown. Thus, we investigated the effect of chronic intracerebroventricular infusion of NPGL for 13 days on feeding behavior and body mass gain under a normal chow diet (NC), high-fat diet, high-sucrose diet (HSD), and medium-fat/medium-sucrose diet (MFSD) in rats. NPGL stimulated food intake of NC and MFSD, especially during the light period. By contrast, NPGL decreased body mass gain under NC and increased total white adipose tissue mass in HSD- and MFSD-fed rats. These data suggest that the effects of NPGL on feeding behavior, body mass gain, and fat accumulation depend on nutrient type. Among them, sucrose in diets seems to contribute to fat accumulation elicited by NPGL.

scholarly journals Exploring the relationship between health literacy and fast food consumption: a population-based study from southern Iran

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Azam Namdar ◽  
Mohammad Mehdi Naghizadeh ◽  
Marziyeh Zamani ◽  
Ali Montazeri
Keyword(s):  
Decision Making ◽  
Health Literacy ◽  
Food Intake ◽  
Food Consumption ◽  
Fast Food ◽  
Reading Skills ◽  
Negative Relationship ◽  
Fars Province ◽  
Southern Iran ◽  
Fast Food Consumption

Abstract Background Health literacy (HL) may affect the consumption of fast food. We aimed to evaluate the effect of HL on fast food consumption among adult populations in Iran. Methods We evaluated HL and fast food consumption in 421 adult participants with age range of 18–65 years old in Fasa, Fars Province, southern Iran. Two-step cluster and systematic sampling was performed to recruit the study sample. Data were collected using a fast food consumption checklist, and the Health Literacy Instrument for Adults (HELIA) by face-to-face interviews. Population data across groups with and without fast food intake were compared. Results Most participants used fast food every few months (49.9%). People with low or unstable income consumed more fast food than others (P < 0.05). Sandwich and hotdog were the most consumed fast food (60.8%) followed by pizza (34.9%). Sausage and soda were the most seasoning food (66.7%). Most participants used fast food as dinner (67.9%) and with family (72.2%), suggesting the institutionalized consumption of this type of food in the family. Fun was the most frequent reason for the use of fast food (66.5%). Most participants completely knew about the raw materials for fast food and their adverse effects. Finally, we found that overall health literacy was lower among those who used fast food than those who did not. Consumed fast food (68.16 ± 23.85 vs. 73.15 ± 20.15; p = 0.021). This difference was also observed for some components of health literacy including reading skills, and decision-making subscales. Conclusions The findings suggest there is a negative relationship between general health literacy and fast food consumption indicating that who possess lower level of health literacy is likely to consume more fast food. Specifically, the findings suggest that reading skills, and decision-making (behavioral intention) are more associated with decreased or increased fast food intake.

Association between Food Intake and Overweight in Children Assisted by Primary Care

2021 ◽  
Vol 15 (1) ◽  
pp. 305-312
Author(s):  
Erivelton Sousa Lima ◽  
Amanda de Castro Amorim Serpa Brandão ◽  
Antonio Luiz Gomes Junior ◽  
Luana kelle Batista Moura ◽  
Gerardo Vasconcelos Mesquita ◽  
...  
Keyword(s):  
Primary Care ◽  
Food Intake ◽  
Food Consumption ◽  
Cross Sectional Study ◽  
Processed Foods ◽  
Food Groups ◽  
Chi Square ◽  
Cross Sectional ◽  
Exact Test ◽  
Chi Square Test

Background: The child feed in the first two years of life is of fundamental importance for a healthy growth and development. Aims: To verify the association between food consumption indicators and overweight in children under the age of two, followed up by primary care health professionals. Methods: A cross-sectional study was conducted on 232 children assisted by primary care. A structured questionnaire was used with questions on sociodemographic data of mothers or guardians and food intake and anthropometric data of children. The analysis of the association between excess weight and food intake indicators was performed using the Pearson’s chi-square test (χ2) and Fisher’s exact test (f ˂ 5). Results: Regarding food intake in children under 6 months of age, 35.1% of the children were exclusively breastfed. Among children at the age of 6 to 23 months: 66.3% were on continued breastfeeding; 16.7% consumed adequate foods at the age of 6 to 8 months; 90.4% consumed foods that belonged to the six food groups; 76.3% consumed food at the minimum frequency and with adequate consistency; 88.9% consumed iron-rich and vitamin A-rich foods, and 59.3% consumed ultra-processed foods. Regarding nutritional status, 24.5% of the children were overweight. Conclusion: There was no statistically significant association between overweight and food consumption indicators among the surveyed children. However, exclusive breastfeeding was below the recommended level, a low percentage of the introduction of complementary foods at the appropriate age and high consumption of ultra-processed foods reveal the need to improve the assistance provided by primary care to this group.

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