scholarly journals Growth rates in children recovering from protein-calorie malnutrition

1969 ◽  
Vol 23 (4) ◽  
pp. 835-845 ◽  
Author(s):  
Ann Ashworth
Keyword(s):  
Food Intake ◽  
Growth Rates ◽  
Rapid Growth ◽  
Food Utilization ◽  
Food Conversion ◽  
Normal Children ◽  
Percentage Body Fat ◽  
Protein Calorie Malnutrition ◽  
Malnourished Children ◽  
Catch Up

1. Compensatory, or ‘catch-up’, growth in eight malnourished children has been studied in relation to food intake, efficiency of food utilization and changes in body composition.2. During recovery, growth rates were fifteen times as fast as those of normal children of similar age, and five times as fast as those of normal children of a similar height or weight.3. Rapid growth was associated with a high food intake.4. When the expected weight for height was reached food intakes fell abruptly by 30% and growth rates dropped to a level comparable with those of normal children of that height and weight.5. Food conversion figures suggest an over-all increase in the efficiency of food utilization during rapid growth.6. The percentage body fat increased, once the expected weight for height was reached.7. Differences in the rates of weight gain from those predicted by the Miller-Payne equation were difficult to interpret: problems associated with the equation are discussed.

IRON INTAKE, HEMOGLOBIN, AND PHYSICAL GROWTH DURING THE FIRST TWO YEARS OF LIFE

PEDIATRICS ◽  
1962 ◽  
Vol 30 (4) ◽  
pp. 518-539
Author(s):  
Virginia A. Beal ◽  
Aldula J. Meyers ◽  
Robert W. McCammon
Keyword(s):  
Food Intake ◽  
Iron Deficiency ◽  
Growth Rates ◽  
Rapid Growth ◽  
Clinical Evidence ◽  
Physical Growth ◽  
First Year ◽  
Dietary Iron ◽  
Iron Intake ◽  
Hemoglobin Synthesis

The variety of infant diets given subjects in this group during the first year all provide iron in amounts of 0.5 mg/kg/day or more except in one of the 59 children. This level of dietary iron intake was adequate to meet iron requirements for hemoglobin synthesis and to prevent development of hematologic or clinical evidence of iron deficiency. Food intake adequate to support rapid growth rates contains enough iron to support the needed relative acceleration of hemoglobin synthesis. Lower intakes of iron are associated with higher percentage utilization in hemoglobin synthesis and higher intakes result in lower utilization. Supplementation of diets with iron in several forms occurred in 25% of the group without hematologic evidence of response as compared with the group dependent on dietary iron alone.

Effects of Intermediate and Low Salinity Conditions on Growth Rate and Food Conversion of Atlantic Cod (Gadus morhua)

1994 ◽  
Vol 51 (7) ◽  
pp. 1569-1576 ◽  
Author(s):  
Yvan Lambert ◽  
Jean-Denis Dutil ◽  
Jean Munro
Keyword(s):  
Growth Rate ◽  
Food Intake ◽  
Growth Rates ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Food Conversion ◽  
Coastal Regions ◽  
Low Salinity ◽  
Feeding Regimes ◽  
Food Conversion Efficiency

Growth rates of Atlantic cod (Gadus morhua) were measured under different salinity conditions to test the hypothesis that growth would be best in an isosmotic environment. The results of two experiments (spring and autumn 1991) conducted at three different salinities (7, 14, and 28‰) and two feeding regimes indicate a significant effect of salinity and ration on growth rate. Within each experiment, growth rates were highest for cod maintained in intermediate salinity conditions (14‰). Growth rates in low salinity conditions (7‰) were higher than in seawater (28‰) during the spring, but during the autumn, growth rates of cod held under low salinity conditions and in seawater were similar. Higher growth rates at lower salinities resulted from an increase in food conversion efficiency. They were not associated with an increase in food intake, changes in composition (proteins, lipids, or water), or relative allocation of energy to the tissues (muscle, liver, and gonads) of cod. The results indicate that rearing cod at intermediate salinities, such as would occur in estuaries or coastal regions, could confer an advantage for cod aquaculture.

Anorexia and food utilization in nematode infected lambs on pasture

2002 ◽  
Vol 75 (2) ◽  
pp. 303-313 ◽  
Author(s):  
S. M. Thamsborg ◽  
N. Agergaard
Keyword(s):  
Food Intake ◽  
Conversion Efficiency ◽  
Dry Matter ◽  
Clinical Symptoms ◽  
Food Utilization ◽  
Food Conversion ◽  
Chrome Oxide ◽  
In Vitro Assessment ◽  
Food Conversion Efficiency

AbstractThe influence of naturally acquired nematode infections on food intake and utilization was investigated in grazing lambs. It was first demonstrated in a pilot study with penned lambs that the application of chrome-oxide in a ruminal bolus could be used for comparison of food intake in infected and uninfected lambs on grass. In a field trial, repeated in two consecutive seasons, 48 lambs grazed on clover grass in six groups. Three stocking rate groups were grazed on contaminated pastures (I-low, I-medium and I-high) and three groups on clean pastures (U-low, U-medium and U-high). Faecal dry-matter (DM) output of individual lambs was estimated in August each year by the chrome-method. DM intake and food conversion efficiency were calculated based on hand-picked herbage samples and in vitro assessment of digestibility. Substantial worm burdens, increasing from year 1 to year 2, were observed and some lambs had clinical symptoms in the 2nd year. In year 2, lambs on contaminated pastures had significantly lower DM intake (proportionately 009 lower), higher faecal protein losses and lower food conversion efficiency compared with the uninfected lambs on clean pastures. The effect of infection on food intakes was eliminated if corrected for body weight. The study showed that if exposure to nematode infections is large enough, increased protein losses in faeces and anorexia may contribute to reduced performance in lambs in late season.

Cereal processing and food utilization by sheep 1. The effect of processing on utilization of barley by early-weaned lambs

1974 ◽  
Vol 18 (1) ◽  
pp. 75-83 ◽  
Author(s):  
C. Fraser ◽  
E. R. Ørskov
Keyword(s):  
Organic Matter ◽  
Growth Rates ◽  
Dry Matter ◽  
Subcutaneous Fat ◽  
Liver Weight ◽  
Food Utilization ◽  
Food Conversion ◽  
Ph Values ◽  
Rumen Ph ◽  
Ad Libitum

SUMMARYIn Experiment 1, 24 early-weaned, male lambs were given ad libitum a diet based on either rolled or whole barley, both pelleted through a 7·4 mm die. Growth rates were 360 and 409 g/day, food conversion ratios 2·80 and 2·56 kg dry matter/kg gain, and organic-matter digestibilities 77·8 and 80·4% for the two diets respectively. In Experiment 2, 12 early-weaned, female lambs were given a diet based on either whole barley pelleted through a 7·4 mm die or unprocessed barley. When the diets were given in restricted quantities those containing unprocessed barley were slightly but significantly higher in digestibility. The feeding of unprocessed barley increased the firmness of subcutaneous fat and the contents of the rumen at slaughter, but decreased liver weight.In Experiment 3,36 early-weaned, female lambs were given ad libitum diets based on either pelleted rolled barley, pelleted whole barley or unprocessed barley. Growth rates were 260, 270 and 264 g/day; food conversion ratios were 3·20, 3·20 and 3·00 kg dry matter/kg gain organic-matter digestibilities were 80·8, 79·3 and 81·0%, rumen pH values were 5·2, 5·2 and 6·1, and liver weights 728, 788 and 673 g, for the three diets respectively. As in Experiment 2, the subcutaneous fat on the cold carcass was firmer and more acceptable to the butcher when whole barley was given.

Lip‐closing pressure during food intake from a spoon in normal children

2021 ◽  
Author(s):  
Yuki Sasakawa ◽  
Yuki Nakamura ◽  
Issei Saitoh ◽  
Tsutomu Nakajima ◽  
Saeko Tsukuno ◽  
...  
Keyword(s):  
Food Intake ◽  
Normal Children ◽  
Closing Pressure

The Winter Flounder (Pseudopleuronectes americanus) in Long Pond, Conception Bay, Newfoundland

1971 ◽  
Vol 28 (8) ◽  
pp. 1153-1165 ◽  
Author(s):  
V. S. Kennedy ◽  
D. H. Steele
Keyword(s):  
Food Intake ◽  
Growth Rates ◽  
Plant Material ◽  
Early Growth ◽  
Winter Flounder ◽  
Pseudopleuronectes Americanus ◽  
Food Items ◽  
Fish Remains ◽  
Males And Females ◽  
Conception Bay

Monthly samples of winter flounder taken in Long Pond from November 1962 to October 1963 indicated that the flounder moved into deeper water (7–10 m) during the summer and returned to shallow water (1–2 m) from September to June. These movements corresponded to the end of the spawning season and the ripening of the gonads respectively. Spawning occurred from March until early June, most of it in May and early June. Most males were mature at age 6 and most females at age 7. Fifty percent of the males and females were mature at 21 and 25 cm respectively. The growth rates of the males and females were similar until the age of 8, after which the females apparently outgrew the males. Early growth and fecundity were similar to those reported for other areas. No feeding took place in December or January but the flounder fed in March and continued to feed throughout the summer; food intake decreased in the fall. They were omnivorous and the type of food eaten varied with the locality. Polychaetes, plant material, and molluscs were the most common food items throughout the year. Capelin eggs and fish remains were found only during a few months of the year but were eaten in great quantities.

The rôles of photoperiod and nutrition in the seasonal increases in growth and insulin-like growth factor-1 secretion in male red deer

2001 ◽  
Vol 73 (2) ◽  
pp. 305-311 ◽  
Author(s):  
J. R. Webster ◽  
I. D. Corson ◽  
R. P. Littlejohn ◽  
S. K. Martin ◽  
J. M. Suttie
Keyword(s):  
Growth Factor ◽  
Food Intake ◽  
Growth Rates ◽  
Energy Demand ◽  
Red Deer ◽  
Young Male ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Plasma Prolactin ◽  
Insulin Like Growth Factor

AbstractYoung male red deer follow a seasonal growth pattern that can be shifted by altering the photoperiod they experience. An increase in photoperiod to 16 h of light per day (16L : 8D) during winter advances the onset of rapid growth and high food intake that normally commences in spring. These changes are associated with increased growth hormone (GH) and insulin-like growth factor-1 (IGF-1) secretion. The GH/IGF-1 axis is acutely sensitive to the level of nutrition and the relative rôles of photoperiod and nutrition in determining the spring IGF-1 rise is unknown. The present experiment set out to examine this by exposing two groups of deer (no. = 8 per group) to a photoperiod shift during their 1st year of life (16L : 8D from 2 June), designed to cause accelerated growth and increased food intake after approximately 7 weeks. However, after 6 weeks the food intake (pellets containing 11 MJ metabolizable energy and 160 g crude protein per kg dry matter (DM)) of one group (LDRES) was clamped, thereby preventing the intake component of the response. The intake of the other group (LDAL) remained ad libitum for a further 12 weeks until 6 October, when the experiment concluded.During the first 6 weeks of 16L : 8D, growth rate (118 (s.e. 15·4) g/day) and food intake (1·37 (s.e. 0·031) kg DM per head per day) did not differ between the groups. Food intake following the clamp in LDRES averaged 1·40 (s.e. 0·015) kg per head per day. The intake of LDAL increased 2 weeks after the clamp and thereafter was higher than LDRES (P < 0·001). Food intake of LDAL averaged 2·13 (s.e. 0·051) kg during the nutritional clamp period. Growth rates increased in both groups during the first 3 weeks of the clamp, averaging 237 (s.e. 25·0) g/day, then growth slowed in LDRES and live weights diverged. Growth rates until the end of the experiment (147 (s.e.23·0) g/ day v. 299 (s.e. 12·5) g/day, P < 0·001) and mean live weight over the last 5 weeks of the experiment were lower (P < 0·05) in LDRES than LDAL, weights reaching 88·3 (s.e. 1·86) kg and 97·9 (s.e. 2·74) kg respectively on the final sampling date. Metatarsal bone length grew more in LDAL than in LDRES (3·1 v. 2·2 cm, s.e.d. = 0·23, P < 0·01). Prior to the nutritional clamp, mean plasma prolactin and IGF-1 concentrations increased at 3 and 6 weeks after 16L : 8D respectively, in both groups. Prolactin concentrations were lower in LDRES than LDAL on two occasions, at weeks 3 and 7 after the onset of the nutritional clamp, and IGF-1 concentrations were lower in LDRES than LDAL (676 v. 872 ng/ml, s.e.d. = 73·8, P < 0·05) over the last 7 weeks of sampling.In summary, a photoperiodically driven increase in IGF-1 occurred even when the usual associated increase in food intake was prevented. This indicates that the seasonal IGF-1 rise in red deer is not a consequence of the increased food intake, although the latter appears necessary to maintain elevated IGF-1 concentrations. The rise in IGF-1 may therefore be considered as a component of the photoperiodically entrained seasonal drive to grow, and the increase in food intake a response to satisfy the increased energy demand.

Breed and sex differences in equally mature sheep and goats 1. Growth and food intake

1987 ◽  
Vol 45 (2) ◽  
pp. 239-260 ◽  
Author(s):  
M. L. Thonney ◽  
St C. S. Taylor ◽  
T. H. McClelland
Keyword(s):  
Food Intake ◽  
Conversion Efficiency ◽  
Mammalian Species ◽  
The Body ◽  
Food Conversion ◽  
Size Scaling ◽  
Daily Food ◽  
Fleece Weight ◽  
Mature Size ◽  
Food Conversion Efficiency

ABSTRACTGenetic size-scaling accounts for most of the variation found among mammalian species in food intake and growth rate, with food conversion efficiency independent of the body size of the species. Is the same true of breeds and strains within species?Animals from Soay, Welsh Mountain, Southdown, Finish Landrace, Jacob, Wiltshire Horn and Oxford Down sheep breeds and from a breed of feral goats were grown to 0·40, 0·52, 0·64 or 0·76 of the mean mature weight of their breed and sex. Food was offered ad libitum and individually recorded.Allometric growth coefficients were obtained for fleece weight, femur weight and femur length. Fleece was late maturing and femur early.Breed and sex size-scaling coefficients, obtained by regression of breed and sex means on mature size, were similar to those found at the species level for age from conception to slaughter, time taken to mature and food conversion efficiency. Coefficients were higher than expected for total and daily food consumption, especially at early stages of maturity. Most breed coefficients were close to expectation while sex coefficients were somewhat higher than expected.There were significant breed deviations: Welsh Mountain, Oxford Down and probably Soay sheep required less time and Jacob sheep and feral goats required more time to mature than expected from differences in mature size. Soay and Welsh Mountain sheep appeared to be more efficient and feral goats and Jacob sheep less efficient food converters over the same maturity interval.

Serum leptin levels and energy expenditure in normal weight women

1998 ◽  
Vol 76 (2) ◽  
pp. 237-241 ◽  
Author(s):  
L J Martin ◽  
PJH Jones ◽  
R V Considine ◽  
W Su ◽  
N F Boyd ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Food Intake ◽  
Energy Expenditure ◽  
Body Mass ◽  
Body Fat ◽  
Positive Association ◽  
Normal Weight ◽  
Serum Leptin ◽  
Percentage Body Fat ◽  
Healthy Humans

To investigate whether circulating leptin levels are associated with energy expenditure in healthy humans, doubly labeled water energy measurements and food intake assessment were carried out in 27 women (mean age, 48.6 years; weight, 61.9 kg; body mass index, 23.2). Energy expenditure was determined over 13 days. Food intake was measured by 7-day food records. Leptin was measured by radioimmunoassay. Leptin level was strongly associated with percentage body fat (r = 0.59; p < 0.001), fat mass (r = 0.60; p < 0.001), and body mass index (r = 0.41; p = 0.03), but no correlation was observed with energy expenditure (r = 0.02; p = 0.93). After controlling for percentage body fat, a positive association of leptin level with energy expenditure of marginal significance (p = 0.06) was observed. There were no significant univariate associations of age, physical activity, lean body mass, height, or dietary variables with leptin level. When controlling for body fat, a significant positive correlation was observed for percent energy from carbohydrate and negative correlations with dietary fat and alcohol intake. These findings confirm previous associations between leptin and body fat content and suggest a relationship between serum leptin and energy expenditure level in healthy humans.Key words: leptin, energy expenditure, body composition, diet.

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