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Journal articles on the topic 'Seasonal Food Intake'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Gagné, Doris, Marc Rhainds, and Isabelle Galibois. "Seasonal Vitamin D Intake In Quebec Preschoolers." Canadian Journal of Dietetic Practice and Research 65, no. 4 (2004): 174–79. http://dx.doi.org/10.3148/65.4.2004.174.

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As a number of seasonal factors affect cutaneous synthesis of vitamin D, especially in young children, our objective was to verify if winter and summer vitamin D intakes in Quebec preschoolers reach the adequate intake of 5 µg/day. A three-month retrospective food frequency questionnaire and a 24-hour food recall were used with parents of 98 children (mean age 56 months) in summer and of 72 of these children (mean age 65 months) in winter. To ensure completeness of data, vitamin D content of foods not covered in the Canadian Nutrient File was taken from other sources. According to the food fre

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Prasad, Marianne, Mirka Lumia, Maijaliisa Erkkola, et al. "Diet composition of pregnant Finnish women: changes over time and across seasons." Public Health Nutrition 13, no. 6A (2010): 939–46. http://dx.doi.org/10.1017/s1368980010001138.

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AbstractObjectiveTo describe the diet of a population of pregnant Finnish women over a period of 7 years, with special attention paid to seasonal fluctuations in food consumption and nutrient intake.DesignA validated 181-item FFQ was applied retrospectively, after delivery, to assess the maternal diet during the 8th month of pregnancy.SettingType 1 Diabetes Prediction and Prevention Nutrition Study Cohort.SubjectsThe cohort comprised a total of 4880 women who had newly delivered during the years 1997–2004, with the offspring carrying increased genetic risk for type 1 diabetes mellitus.ResultsO

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Hudson, Geoffrey J. "Food intake in a West African village. Estimation of food intake from a shared bowl." British Journal of Nutrition 73, no. 4 (1995): 551–69. http://dx.doi.org/10.1079/bjn19950058.

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Novel methodology is described for the estimation of food intake in the particularly difficult circumstance where groups of people eat directly from a shared bowl of cooked food. Detailed observation and measurement of meal preparation is combined with food table values for composition to calculate the nutrient content of each meal. The distribution of food between individuals is estimated by a suitable algorithm. The ability of the algorithm to identify seasonal changes in energy intakes is demonstrated by comparison of the calculated energy intakes with values for the total energy expenditur

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Choy, Kyungcheol, Sarah H. Nash, Courtney Hill, et al. "The Nitrogen Isotope Ratio Is a Biomarker of Yup'ik Traditional Food Intake and Reflects Dietary Seasonality in Segmental Hair Analyses." Journal of Nutrition 149, no. 11 (2019): 1960–66. http://dx.doi.org/10.1093/jn/nxz144.

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ABSTRACT Background The nitrogen isotope ratio (NIR) is a promising index of traditional food intake for an Alaska Native (Yup'ik) population, which can be measured in blood and hair. However, the NIR has not been calibrated to high-quality measures of Yup'ik traditional food intake. Objectives Our primary objective was to examine associations between intakes of Yup'ik traditional food groups, including fish, marine mammals, birds, land mammals, berries, greens, and total traditional foods, and the NIR. In an exploratory analysis, we also examined whether NIR analyzed sequentially along hair c

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Rosen, D. A. S., B. L. Young, and A. W. Trites. "Rates of maximum food intake in young northern fur seals (Callorhinus ursinus) and the seasonal effects of food intake on body growth." Canadian Journal of Zoology 90, no. 1 (2012): 61–69. http://dx.doi.org/10.1139/z11-112.

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Accurate estimates of food intake and its subsequent effect on growth are required to understand the interaction between an animal’s physiology and its biotic environment. We determined how food intake and growth of six young northern fur seals ( Callorhinus ursinus (L., 1758)) responded seasonally to changes in food availability. Animals were given unrestricted access to prey for 8 h·day–1 on either consecutive days or on alternate days only. We found animals offered ad libitum food on consecutive days substantially increased their food intake over normal “training” levels. However, animals t

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Fahey, Michael T., Satoshi Sasaki, Minatsu Kobayashi, Masayuki Akabane, and Shoichiro Tsugane. "Seasonal misclassification error and magnitude of true between-person variation in dietary nutrient intake: a random coefficients analysis and implications for the Japan Public Health Center (JPHC) Cohort Study." Public Health Nutrition 6, no. 4 (2003): 385–91. http://dx.doi.org/10.1079/phn2002438.

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AbstractObjective:We examine (1) the extent to which seasonal diet assessments correctly classify individuals with respect to their usual nutrient intake, and (2) whether the magnitude of true variation in intake between individuals is seasonal. These effects could lead, respectively, to bias in estimates of relative risk for associations between usual nutrient exposure and disease, and to an increase in required sample size.Subjects and setting:One hundred and twenty-seven families in four regions of the Japan Public Health Center (JPHC) Cohort Study.Design:On average, 48 weighed daily food r

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Moser, Brandy, and Jesse Stabile Morrell. "Relationship between Dietary Fiber and Allergy Prevalence in a College Population." Current Developments in Nutrition 6, Supplement_1 (2022): 931. http://dx.doi.org/10.1093/cdn/nzac067.051.

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Abstract Objectives To characterize the relationship between dietary fiber intake and the prevalence of allergic diseases, seasonal allergies and asthma, in a college student population. Methods Data were collected from 2012–2021 through the College Health and Nutrition Assessment Survey, an ongoing cross-sectional study at a midsized, public New England university. Students (18–24 years; n = 4135; 67% female) completed a comprehensive, online demographic and health information survey, a 3-day food record, and an analysis of their average nutrient intake via an online program (Diet and Wellnes

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Weber, M. L., and J. M. Thompson. "Seasonal patterns in food intake, live mass, and body composition of mature female fallow deer ( Dama dama)." Canadian Journal of Zoology 76, no. 6 (1998): 1141–52. http://dx.doi.org/10.1139/z98-029.

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Seasonal oscillations in food intake, live mass, and body component masses were investigated in two groups, each of 4 mature fallow does, which were fed high and low energy density diets ad libitum over a 17-month period. The aim of the experiment was to quantify seasonal patterns of food intake, live mass, and body tissue masses and to assess the effect of high- and low-energy diets on these patterns. Total body fat, muscle, and viscera masses were estimated on 10 occasions using computer-aided tomography. When food intake was expressed in megajoules of metabolisable energy per day, there was

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Ayala-Berdon, Jorge, Jorge E. Schondube, and Kathryn E. Stoner. "Seasonal intake responses in the nectar-feeding bat Glossophaga soricina." Journal of Comparative Physiology B 179, no. 5 (2009): 553–62. https://doi.org/10.5281/zenodo.13474230.

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(Uploaded by Plazi for the Bat Literature Project) Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named ''intake response''. However, their capacity to achieve compensatory feeding, in which they maintain a constant flux of energy, could be constrained by physiological processes. Here we evaluated how both a seasonal change in environmental conditions and physiological constraints affected the food ingestion in t

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Ayala-Berdon, Jorge, Jorge E. Schondube, and Kathryn E. Stoner. "Seasonal intake responses in the nectar-feeding bat Glossophaga soricina." Journal of Comparative Physiology B 179, no. 5 (2009): 553–62. https://doi.org/10.5281/zenodo.13474230.

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(Uploaded by Plazi for the Bat Literature Project) Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named ''intake response''. However, their capacity to achieve compensatory feeding, in which they maintain a constant flux of energy, could be constrained by physiological processes. Here we evaluated how both a seasonal change in environmental conditions and physiological constraints affected the food ingestion in t

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Ayala-Berdon, Jorge, Jorge E. Schondube, and Kathryn E. Stoner. "Seasonal intake responses in the nectar-feeding bat Glossophaga soricina." Journal of Comparative Physiology B 179, no. 5 (2009): 553–62. https://doi.org/10.5281/zenodo.13474230.

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(Uploaded by Plazi for the Bat Literature Project) Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named ''intake response''. However, their capacity to achieve compensatory feeding, in which they maintain a constant flux of energy, could be constrained by physiological processes. Here we evaluated how both a seasonal change in environmental conditions and physiological constraints affected the food ingestion in t

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Ayala-Berdon, Jorge, Jorge E. Schondube, and Kathryn E. Stoner. "Seasonal intake responses in the nectar-feeding bat Glossophaga soricina." Journal of Comparative Physiology B 179, no. 5 (2009): 553–62. https://doi.org/10.5281/zenodo.13474230.

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(Uploaded by Plazi for the Bat Literature Project) Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named ''intake response''. However, their capacity to achieve compensatory feeding, in which they maintain a constant flux of energy, could be constrained by physiological processes. Here we evaluated how both a seasonal change in environmental conditions and physiological constraints affected the food ingestion in t

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Ayala-Berdon, Jorge, Jorge E. Schondube, and Kathryn E. Stoner. "Seasonal intake responses in the nectar-feeding bat Glossophaga soricina." Journal of Comparative Physiology B 179, no. 5 (2009): 553–62. https://doi.org/10.5281/zenodo.13474230.

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(Uploaded by Plazi for the Bat Literature Project) Food intake in nectar-feeding animals is affected by food quality, their energetic demands, and the environmental conditions they face. These animals increase their food intake in response to a decrease in food quality, a behavior named ''intake response''. However, their capacity to achieve compensatory feeding, in which they maintain a constant flux of energy, could be constrained by physiological processes. Here we evaluated how both a seasonal change in environmental conditions and physiological constraints affected the food ingestion in t

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Amanatidis, Soumela, Dorothy Mackerras, and Judy M. Simpson. "Comparison of two frequency questionnaires for quantifying fruit and vegetable intake." Public Health Nutrition 4, no. 2 (2001): 233–39. http://dx.doi.org/10.1079/phn200094.

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AbstractObjectiveThe effect on individual rankings and total intakes of nutrients of correcting total fruit and vegetable frequencies from a long food frequency questionnaire (FFQ) using the responses to two summary questions was examined in a group of women.MethodsThe performance of a self-administered FFQ in ranking individual levels of intake and estimating absolute levels of nutrient and energy intake was compared with the performance of the questionnaire when it was corrected for fruit and vegetable intake reported using the Block summary questions.SubjectsThe study population included 12

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Concannon, P., K. Levac, R. Rawson, B. Tennant, and A. Bensadoun. "Seasonal changes in serum leptin, food intake, and body weight in photoentrained woodchucks." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 281, no. 3 (2001): R951—R959. http://dx.doi.org/10.1152/ajpregu.2001.281.3.r951.

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Male woodchucks ( Marmota monax) were maintained in northern vs. southern hemisphere photoperiods, provided feed and water ad libitum, and evaluated every 2 wk for 23 mo for body weight, absolute and relative food intake, body temperature, serum testosterone, and serum concentrations of leptin measured using an anti-mouse leptin enzyme-linked immunoassay. During late spring and summer, body weight increased 56 ± 4% above winter nadirs, and during the autumn and early winter weights decreased 27 to 43% below midsummer maxima. Serum leptin initially increased during increases in body weight, in

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Curtis, Rachel G., Gilly A. Hendrie, Ty Ferguson, et al. "Annual and Seasonal Patterns of Dietary Intake in Australian Adults: A Prospective Cohort Study." Nutrients 16, no. 16 (2024): 2718. http://dx.doi.org/10.3390/nu16162718.

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Poor diet is a major risk factor for non-communicable disease. The aims of this study were to describe temporal patterns and seasonal changes in diet across the year in Australian adults. A total of 375 adults from a prospective cohort study conducted between 1 December 2019 and 31 December 2021 in Adelaide, Australia, were asked to complete the Dietary Questionnaire for Epidemiological Studies at eight timepoints over a year. Average intakes over the previous month of total energy, macronutrients, healthy food groups, and discretionary foods and beverages were derived. Temporal patterns in di

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Piedboeuf, Nathalie, and Gilles Gauthier. "Nutritive quality of forage plants for greater snow goose goslings: when is it advantageous to feed on grazed plants?" Canadian Journal of Zoology 77, no. 12 (1999): 1908–18. http://dx.doi.org/10.1139/z99-175.

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Foraging herbivores often face a choice: move to ungrazed sites, where the biomass is high, or use grazed sites, where the biomass is lower but the quality of the regrown plants is often higher. Foraging strategies should therefore depend on the difference in biomass between grazed and ungrazed sites and the food quality in the two types of site, both variables that are likely to vary seasonally. We compared the nutritive quality (in terms of metabolisability of food, nitrogen, and energy, and rate of food intake) of grazed and ungrazed sites for early- and late-hatched greater snow goose (Che

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Fogelholm, Mikael, Seppo Rehunen, Carl-Gustav Gref, et al. "Dietary Intake and Thiamin, Iron, and Zinc Status in Elite Nordic Skiers during Different Training Periods." International Journal of Sport Nutrition 2, no. 4 (1992): 351–65. http://dx.doi.org/10.1123/ijsn.2.4.351.

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This study evaluated how different training periods affect dietary intake and biochemical indices of thiamin, iron, and zinc status in elite Nordic skiers. Subjects.were 17 skiers and 39 controls, ages 18-38 yrs. Dietary data were collected by 7-day food records at 3-month intervals. Coefficient of variation (CV) was used to indicate magnitude of seasonal changes. Energy intake for the year (28 food record days) was 3,802 kcallday (CV 19.1%) in male skiers, 2,754 kcallday (CV 3.7%) in male controls, 2,812 kcallday (CV 9.1%) in female skiers, and 2,013 kcallday (CV 5.9%) in female controls. CVs

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Schuhler, Sandrine, Tracey L. Horan, Michael H. Hastings, Julian G. Mercer, Peter J. Morgan, and Francis J. P. Ebling. "Decrease of food intake by MC4-R agonist MTII in Siberian hamsters in long and short photoperiods." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 284, no. 1 (2003): R227—R232. http://dx.doi.org/10.1152/ajpregu.00331.2002.

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We investigated the role of the hypothalamic melanocortin system in the regulation of food intake in the Siberian hamster, which shows a profound seasonal decrease in food intake and body weight in short photoperiod (SP). In male hamsters maintained in long photoperiod (LP), intracerebroventricular injection of melanotan II (MTII) just before lights off significantly decreased food intake relative to vehicle treatment over the 6-h observation period. Similar effects were observed in age-matched hamsters after exposure to a short daylength for 9 wk, when body weight had significantly decreased.

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Bartness, T. J., J. A. Elliott, and B. D. Goldman. "Control of torpor and body weight patterns by a seasonal timer in Siberian hamsters." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 257, no. 1 (1989): R142—R149. http://dx.doi.org/10.1152/ajpregu.1989.257.1.r142.

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Two experiments were designed to assess whether the short-day-induced patterns of shallow daily torpor, body weight, and other seasonal responses (food intake and pelage pigmentation) exhibited by Siberian hamsters (Phodopus sungorus sungorus) are under the control of a "seasonal timekeeping mechanism" that is independent of reproductive status [testosterone, (T)]. We examined whether the patterning and expression of these seasonal responses were altered by decreases in serum T that accompany gonadal regression during the first 8 wk of short-day exposure (i.e., the "preparatory phase" of the t

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Prentice, Ann, M. Ann Laskey, Jacquie Shaw, et al. "The calcium and phosphorus intakes of rural Gambian women during pregnancy and lactation." British Journal of Nutrition 69, no. 3 (1993): 885–96. http://dx.doi.org/10.1079/bjn19930088.

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The Ca and P intakes of 148 pregnant and lactating women in a rural village in The Gambia. West Africa, have been estimated by direct weighing of food on a total of 4188 d. The Ca and P contents of local foods were determined by analysis of raw ingredients, snack foods and prepared dishes. Information about the contribution of mineral-rich seasonings was obtained. Efforts were made to discover unusual sources of Ca that might not be perceived as food by subject or observer. The main contributors to daily Ca intake were shown to be leaves, fish, cereals, groundnuts and local salt. Cow's milk ac

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Santos, Jefferson Souza, Debra Jean Skene, Cibele Aparecida Crispim, and Claudia Roberta de Castro Moreno. "Seasonal and Regional Differences in Eating Times in a Representative Sample of the Brazilian Population." Nutrients 15, no. 18 (2023): 4019. http://dx.doi.org/10.3390/nu15184019.

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Human food intake and its timing are a complex behavior that can be influenced by a variety of factors, some of which may vary from season to season or from region to region. In this study, our aim was to investigate the seasonal variation in food intake times, with a particular focus on how these may vary across different regions of a country. We conducted an analysis of data from 20,622 adults from the National Household Budget Survey (POF-IBGE), encompassing complete food diaries collected from individuals residing in Brazil, and thereby ensuring representation across different latitudes. E

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Kauffman, Alexander S., Alessandra Cabrera, and Irving Zucker. "Energy intake and fur in summer- and winter-acclimated Siberian hamsters (Phodopus sungorus)." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 281, no. 2 (2001): R519—R527. http://dx.doi.org/10.1152/ajpregu.2001.281.2.r519.

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Few studies have directly addressed the impact of fur on seasonal changes in energy intake. The daily food intake of Siberian hamsters ( Phodopus sungorus) was measured under simulated summer and winter conditions in intact animals and those with varying amounts of pelage removed. Energy intake increased up to 44% above baseline control values for approximately 2–3 wk after complete shaving. Increases in food intake varied with condition and were greater in hamsters housed in short than long day lengths and at low (5°C) than moderate (23°C) ambient temperatures. Removal of 8 cm2 of dorsal fur,

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Tousen, Yuko, Ryoko Mizushima, Kayo Kurotani, Jun Nishihira, and Hidemi Takimoto. "Dietary Intake and Its Patterns Across Summer and Winter Seasons in Hokkaido, Japan." Current Developments in Nutrition 5, Supplement_2 (2021): 1098. http://dx.doi.org/10.1093/cdn/nzab053_091.

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Abstract Objectives The Japanese diet pattern is closely associated with seasonal supply, but there are limited studies on how seasonal changes affect dietary intake in Japan. Hokkaido, located in the northernmost tip of Japan, is a region with abundant dairy and agricultural produce. The diet in Hokkaido may be sensitive to the seasonal supply. This study aimed to assess the effect of seasons on the intake of different nutrients and food groups among the adults of Hokkaido, Japan. Methods This study examined the data of adults aged 20–79 years, who participated in the “Sukoyaka-kenko-chosa,”

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Frisbie, Malcolm Pratt, and William A. Dunson. "Seasonal aspects of sodium, potassium, and water balance in the predaceous diving beetle Dytiscus verticalis." Canadian Journal of Zoology 66, no. 7 (1988): 1553–61. http://dx.doi.org/10.1139/z88-227.

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A previous study showed that food availability i the laboratory can dramatically affect sodium balance of the predaceous diving beetle Dytiscus verticalis. Because this species inhabits small ponds that dry up in the summer, it seemed likely that wild beetles would undergo annual changes in ody ion content. Seasonally collected predaceous diving beetles were analyzed for dry body mass, body water, body sodium and potassium, hemolymph sodium concentration, and hemolymph osmolality. Beetles varied in all characteristics over a 16-month period, and variation was seasonally cyclic for body water,

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Thomas, Jessica L., Kathrine A. Handasyde, Peter Temple-Smith, and Marissa L. Parrott. "Seasonal changes in food selection and nutrition of captive platypuses (Ornithorhynchus anatinus)." Australian Journal of Zoology 65, no. 5 (2017): 319. http://dx.doi.org/10.1071/zo18004.

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Anecdotal observations of captive platypuses (Ornithorhynchus anatinus) suggest that they show a seasonal preference for particular foods, but this has never been rigorously measured. This study aimed to determine seasonal food preferences and energy consumption of captive platypuses so that better protocols for maintaining platypuses in captivity can be developed. Seven platypuses were fed an ad libitum diet with all food items weighed in and out of tanks. Food items were analysed for energy, fats, carbohydrates, proteins, vitamins and minerals. Platypuses preferred less mobile prey (mealworm

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Scala, Christopher, Daryl Codron, Melanie Oesterwind, Isabelle Brasseur, and Marcus Clauss. "Presumptive Photoperiodic Regulation of Food Intake and Body Mass in Killer Whales (Orcinus orca)." Aquatic Mammals 51, no. 4 (2025): 371–91. https://doi.org/10.1578/am.51.4.2025.371.

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Estimates of energy intake are important for modelling population dynamics and assessing habitat quality of killer whales (Orcinus orca) and for husbandry under managed care. We estimated the energy requirements of four individual killer whales at Marineland Côte d’Azur in Antibes, France, using records of daily food intake, fish nutrient composition, and animal body mass over eight years for each animal. Relative metabolizable energy intake for maintenance (zero body mass change) and for average winter growth (0.07 to 0.09% body mass/d) were estimated at 667 to 892 and 1,054 to 1,237 MJ ME/kg

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Gedir, J. V., and R. J. Hudson. "Seasonal intake determination in reproductive wapiti hinds (Cervus elaphus canadensis) using n-alkane markers." Canadian Journal of Animal Science 80, no. 1 (2000): 137–44. http://dx.doi.org/10.4141/a99-042.

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We used bite-count and double n-alkane ratio techniques to estimate dry matter intake (DMI) of wapiti hinds on heavily or lightly grazed pastures, during important reproductive phases (early/late gestation, peak/late lactation). Despite seasonal differences in phytomass between pastures, differences in DMI were not significant and results were pooled for seasonal comparisons. The annual nadir of intake occurred in late gestation (3.44 ± 0.17 kg DM d−1) despite the nutrient demands of the rapidly growing foetus. Spring weight loss (−2.9 ± 0.8 g kg−0.75 d−1) reflected the inability of hinds to g

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Partonen, T. "Possible pathophysiological mechanisms regulating food intake in seasonal affective disorder." Medical Hypotheses 47, no. 3 (1996): 215–16. http://dx.doi.org/10.1016/s0306-9877(96)90083-3.

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Zou, Xiao Nong, Philip Taylor, Steven Mark, et al. "Seasonal Variation of Food Consumption and Selected Nutrient Intake in Linxian, a High Risk Area for Esophageal Cancer in China." International Journal for Vitamin and Nutrition Research 72, no. 6 (2002): 375–82. http://dx.doi.org/10.1024/0300-9831.72.6.375.

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Linxian, China, is a region with high incidence of esophageal cancer and a history of poor nutritional status. Nutrition Intervention Trials were conducted in this area from 1985 through 1991 and found a reduction in total cancer mortality in the group receiving supplementation of beta-carotene/selenium/alpha-tocopherol. The positive results of those trials have, in part, been ascribed to the poor nutritional status of this population. To investigate more recent food patterns, nutrient intakes, and seasonal variations in the diet, dietary surveys were conducted among the residents of Linxian i

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Thompson, J. M., J. R. Parks, and Diana Perry. "Food intake, growth and body composition in Australian Merino sheep selected for high and low weaning weight. 1. Food intake, food efficiency and growth." Animal Science 40, no. 1 (1985): 55–70. http://dx.doi.org/10.1017/s0003356100031858.

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ABSTRACTChanges in the pattern of food intake, food conversion efficiency and growth from weaning to maturity, were examined in 35 rams and ewes from flocks of Merino sheep selected for high (weight-plus) and low (weight-minus) weaning weight and from a randomly bred control flock. The sheep were individually fed a pelleted ration ad libitum for at least 72 weeks and up to 90 weeks post weaning. Weekly food intake was described as an increasing exponential function of age with a linearly declining asymptote, about which a regular oscillation occurred, and weekly body-weight gain was described

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Temu, Steven E., Cuthbert L. Nahonyo, Marion L. East, and Patricia D. Moehlman. "Diet of the Golden Jackal (Canis aureus) and Silver-Backed Jackal (Canis mesomelas) in the Southern Part of the Serengeti Ecosystem, Tanzania: A Comparative Study." Tanzania Journal of Science 48, no. 4 (2022): 773–84. http://dx.doi.org/10.4314/tjs.v48i4.5.

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Habitat and food resource partitioning are predicted to facilitate the coexistence of similar-sized carnivores. The golden jackal (Canis aureus) and silver-backed jackal (Canis mesomelas) are similar-sized canids that respectively inhabit grassland and woodland in the Serengeti ecosystem, Tanzania. As information on the diet and food-intake of these two species in this ecosystem is limited, we aimed to compare the diet and food-intake of these canids in the wet and dry seasons, using data from focal samples of foraging behaviour and scat analysis. We predicted dietary differences between these

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Joachim, Gloria. "The Influence of Time on Dietary Data: Differences in Reported Summer and Winter Food Consumption." Nutrition and Health 12, no. 1 (1997): 33–43. http://dx.doi.org/10.1177/026010609701200104.

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A pilot study was conducted to test whether or not the time of data collection affected subjects' responses to a dietary questionnaire and could therefore bias the results of a study. A 117 item food frequency questionnaire was administered to 43 subjects—16 in the summer and 27 in the winter. The summer and winter consumption per person per month was calculated and compared. Of the 117 foods, 105 (89%) showed differences between summer and winter consumption. While differences in summer fruit and hot cereal might be expected, this study showed that many other foods not usually thought of as s

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Rutley, B. D., and R. J. Hudson. "Seasonal energetic parameters of free-grazing bison (Bison bison)." Canadian Journal of Animal Science 80, no. 4 (2000): 663–71. http://dx.doi.org/10.4141/a99-114.

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Seasonal energetic parameters of yearling bison were estimated using the bite-count and single marker methods (fieldtrials) during each solstice and equinox between June 1994 and December 1995. To calibrate the marker method and to provide a controlled estimate of seasonal requirements, balance trials were conducted in metabolism crates during winter solstice 1994 and summer solstice 1995 (pen trials). In pen trials, actual metabolizable energy (ME) intake was lower (P < 0.01) during winter (528 ± 51 kJ W−0.75 d−1) than in summer (917 ± 69 kJ W−0.75 d−1). Similarly, in field trials, estimat

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Jose, Sarin S., T. Shalini, N. Balakrishna, M. S. Radhika, G. N. V. Brahmam, and G. Bhanuprakash Reddy. "A Raw Food Based Quantitative Food Frequency Questionnaire to Assess Long-Term Dietary-Intake among Urban Adults of South India: Relative Validity and Reproducibility." Indian Journal of Nutrition and Dietetics 55, no. 1 (2018): 1. http://dx.doi.org/10.21048/ijnd.2018.55.1.18269.

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Food Frequency Questionnaire (FFQ) is a commonly used tool for the measurement of food intake of a large population. However, FFQ could be influenced by the cultures, seasons and food habits. Thus FFQ should be validated against a known or standard tool like a multiple 24-hour dietary recalls (24h) and also needs to be tested for its reproducibility. Hence, in this study, the reproducibility of a Raw food based quantitative FFQ (RFFQ) was assessed and validated against the standard multiple 24h method. A community-based longitudinal study was conducted among 106 urban adult subjects in Hyderab

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Yoshimura, Eiichi, Eri Tajiri, Yoichi Hatamoto, and Shigeho Tanaka. "Changes in Season Affect Body Weight, Physical Activity, Food Intake, and Sleep in Female College Students: A Preliminary Study." International Journal of Environmental Research and Public Health 17, no. 23 (2020): 8713. http://dx.doi.org/10.3390/ijerph17238713.

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The current study examined how body weight and lifestyle fluctuate between spring, autumn, and winter in Japanese female college students and whether weight gain is associated with changes in physical activity, food intake, and sleep. We measured body weight and lifestyle factors in 31 participants from May 2017 to January 2018. Weight was measured daily in participants’ homes. Physical activity and sleep were measured for three weeks in three seasons using two accelerometers. Food intake was assessed using a validated food frequency questionnaire. Body weight significantly decreased in autumn

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Iason, G. R., D. A. Sim, and I. J. Gordon. "Do endogenous seasonal cycles of food intake influence foraging behaviour and intake by grazing sheep?" Functional Ecology 14, no. 5 (2000): 614–22. http://dx.doi.org/10.1046/j.1365-2435.2000.t01-1-00462.x.

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Hadley, Craig, Monique Borgerhoff Mulder, and Emily Fitzherbert. "Seasonal food insecurity and perceived social support in rural Tanzania." Public Health Nutrition 10, no. 6 (2007): 544–51. http://dx.doi.org/10.1017/s1368980007246725.

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AbstractObjectivesTo examine whether the occurrence of seasonal food insecurity was related to ethnicity, household wealth and perceived social support, and to assess whether social support was more efficacious in protecting against food insecurity in wealthier households. Secondary objectives were to assess the association between past food insecurity, current dietary intake and perceived health.Design, setting and subjectsA sample of 208 randomly selected mothers from two ethnic groups living in the same villages in rural Tanzania participated in a cross-sectional survey.ResultsFood insecuri

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STOREHEIER, P. V., B. E. H. VAN OORT, M. A. SUNDSET, and S. D. MATHIESEN. "Food intake of reindeer in winter." Journal of Agricultural Science 141, no. 1 (2003): 93–101. http://dx.doi.org/10.1017/s002185960300337x.

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Management of semi-domesticated reindeer (Rangifer tarandus tarandus) in the northern regions have historically focused on reindeer–vegetation interactions, while few data on the food intake of these animals exist. Dry matter intake (DMI) was therefore estimated successively during winter in reindeer calves fed (i) ad libitum pelleted reindeer feed (RF-80; n=6), (ii) fed ad libitum mixed lichens (n=6) and (iii) in free-ranging reindeer calves (n=3) on natural winter pasture (March/April; 69 °N). Faecal output, determined with faeces collection bags, was 24±4, 6±3 and 22±3 g DM/day/kg BM0·75 in

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Nishimuro, Haruno, Hirofumi Ohnishi, Midori Sato, et al. "Estimated Daily Intake and Seasonal Food Sources of Quercetin in Japan." Nutrients 7, no. 4 (2015): 2345–58. http://dx.doi.org/10.3390/nu7042345.

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Ebling, Francis J. P. "Hypothalamic control of seasonal changes in food intake and body weight." Frontiers in Neuroendocrinology 37 (April 2015): 97–107. http://dx.doi.org/10.1016/j.yfrne.2014.10.003.

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Ebling, F. J. P., and P. Barrett. "The Regulation of Seasonal Changes in Food Intake and Body Weight." Journal of Neuroendocrinology 20, no. 6 (2008): 827–33. http://dx.doi.org/10.1111/j.1365-2826.2008.01721.x.

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Iason, G. R., D. A. Sim, E. Foreman, P. Fenn, and D. A. Elston. "Seasonal variation of voluntary food intake and metabolic rate in three contrasting breeds of sheep." Animal Science 58, no. 3 (1994): 381–87. http://dx.doi.org/10.1017/s0003356100007327.

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AbstractVoluntary food intake (VFI) of chopped timothy hay and metabolic rate were each measured in each month of the year in six non-breeding ewes of each of three breeds. Metabolic rate was measured using indirect calorimetry over a range of food intakes and adjusted for intake to an estimated maintenance metabolic rate (MMR). The breeds compared were the Dorset Horn (DT), Scottish Blackface (BF) and Shetland (SH), the first being less seasonal in reproductive and other characteristics than the other two which are hill or northern latitude breeds. There was significant overall variation betw

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Rawson, Richard E., Patrick W. Concannon, Paul J. Roberts, and Bud C. Tennant. "Seasonal differences in resting oxygen consumption, respiratory quotient, and free thyroxine in woodchucks." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 274, no. 4 (1998): R963—R969. http://dx.doi.org/10.1152/ajpregu.1998.274.4.r963.

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The relationships among seasonal differences in body weight, food intake, metabolism, and thyroid hormone in woodchucks were investigated in 12 woodchucks. Six woodchucks had been maintained on a photoperiod simulating that found at 42°N (boreal woodchucks). The other group of six animals had been maintained similarly in all respects except that the light simulated that found at 42°S (austral woodchucks). An open-flow respirometer, calibrated using the N2-dilution method, was used to determine metabolism twice in a 2-wk period near the September equinox, while at the same time food intake, bod

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Golden, Christopher D., Bapu Vaitla, Laurent Ravaoliny, et al. "Seasonal trends of nutrient intake in rainforest communities of north-eastern Madagascar." Public Health Nutrition 22, no. 12 (2019): 2200–2209. http://dx.doi.org/10.1017/s1368980019001083.

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AbstractObjective:We collected dietary records over the course of nine months to comprehensively characterize the consumption patterns of Malagasy people living in remote rainforest areas of north-eastern Madagascar.Design:The present study was a prospective longitudinal cohort study to estimate dietary diversity and nutrient intake for a suite of macronutrients, micronutrients and vitamins for 152 randomly selected households in two communities.Setting:Madagascar, with over 25 million people living in an area the size of France, faces a multitude of nutritional challenges. Micronutrient-poor

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Sharma, Sangita, Xia Cao, Joel Gittelsohn, Jean Anliker, Becky Ethelbah, and Benjamin Caballero. "Dietary intake and a food-frequency instrument to evaluate a nutrition intervention for the Apache in Arizona." Public Health Nutrition 10, no. 9 (2007): 948–56. http://dx.doi.org/10.1017/s1368980007662302.

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AbstractObjectiveTo demonstrate how dietary data collected from 24-hour dietary recalls were incorporated into the development of a quantitative food-frequency questionnaire (QFFQ) for the Apache in Arizona.DesignA cross-sectional study was first conducted using 24-hour dietary recalls to identify foods for inclusion on a QFFQ that would be used to evaluate a nutrition intervention.SettingThe White Mountain and San Carlos Apache reservations in East-central Arizona.SubjectsThe 24-hour dietary recalls were collected from a random sample of 53 adults (34 women and 19 men).ResultsA QFFQ was devel

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Dunham, Noah T., Diana C. Koester, Ellen S. Dierenfeld, Rebecca Rimbach, and Herman Pontzer. "Balancing the scales: Preliminary investigation of total energy expenditure and daily metabolizable energy intake in Matschie’s tree kangaroo (Dendrolagus matschiei)." PLOS ONE 17, no. 6 (2022): e0270570. http://dx.doi.org/10.1371/journal.pone.0270570.

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Matschie’s tree kangaroo (Dendrolagus matschiei) is an endangered arboreal marsupial native to Papua New Guinea. Detailed field studies of its behavior and ecology are scarce due largely to its occupation of remote cloud forests and cryptic nature. Although this species has been in human care since the 1950s, much of its biology is still unknown. The current ex situ population is not sustainable due to health and reproductive problems, believed to stem largely from issues with diet and obesity. To better assess potential discrepancies between energy requirements and energy intake, we sought to

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Joachim, Gloria. "Sources of Variability in the Reproducibility of Food Frequency Questionnaires." Nutrition and Health 12, no. 3 (1998): 181–88. http://dx.doi.org/10.1177/026010609801200303.

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The reproducibility of food frequency questionnaires varies widely. Since reports of past intake are known to be biased toward the present and the forces of supply and demand affect what people eat at a given point in time, the questionnaire may capture an atypical snapshot of consumption rather than the intended view of usual consumption. The consumption of regularly consumed foods is the same throughout the year. The consumption of these foods is likely to be highly reproducible at another point in time. The consumption of seasonally consumed foods, however, fluctuates throughout the year, a

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Adamczewski, J. Z., P. F. Flood, R. K. Chaplin, and J. A. Schaefer. "Seasonal variation in intake and digestion of a high-roughage diet by muskoxen." Canadian Journal of Animal Science 74, no. 2 (1994): 305–13. http://dx.doi.org/10.4141/cjas94-042.

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We studied changes in body weight, intake, retention time and apparent digestibility of a supplemented brome-alfalfa hay by mature muskoxen held near Saskatoon, Saskatchewan during two seasonal cycles. Body weights and voluntary intake were monitored during 16 trials from late March 1990 to December 1991, in four annually breeding females and in three hysterectomized females. Retention time of the hay and apparent digestibility of the diet were estimated in winter and summer 1991 from fecal excretion of chromium (Cr) after a pulse dose of Cr-mordanted hay, and from forage/fecal concentrations

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Hirvonen, Kalle, Alemayehu Seyoum Taffesse, and Ibrahim Worku Hassen. "Seasonality and household diets in Ethiopia." Public Health Nutrition 19, no. 10 (2015): 1723–30. http://dx.doi.org/10.1017/s1368980015003237.

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AbstractObjectiveTo revisit seasonality by assessing how household diets vary across agricultural seasons in rural and urban Ethiopia. The role of seasonality on the sources and intake of energy (per capita) and household dietary diversity score (HDDS) was analysed.DesignThe use of nationally representative household-level data collected each month over one year to study the seasonal changes in the sources and intake of energy and HDDS.SettingEleven regions of Ethiopia, including rural and urban settings.SubjectsTotal of 27 835 households were interviewed between July 2010 and July 2011 in all

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