scholarly journals The energy cost of human lactation

1970 ◽  
Vol 24 (2) ◽  
pp. 565-572 ◽  
Author(s):  
A. M. Thomson ◽  
F. E. Hytten ◽  
W. Z. Billewicz
Keyword(s):  
Energy Supply ◽  
Critical Evaluation ◽  
Average Energy ◽  
Bottle Feeding ◽  
Dietary Energy ◽  
Average Amount ◽  
Human Lactation ◽  
Lactating Mothers ◽  
Daily Diet ◽  
Energy Exchanges

1. The energy values of the diets of twenty-three women who were breast-feeding and thirty-two who were bottle-feeding their babies were determined by 7 d weighed surveys. All the subjects were healthy and living at home, and their babies were thriving. The lactating mothers took, on average, 591 kcal (2.5 MJ)/d more than those who were not lactating.2. Both groups were losing weight, on average. The estimated contribution of such losses to the total energy supply was added to and the amounts expended on basal metabolism deducted from the dietary energy intakes. Since the activity of each group was fairly similar, it was possible to conclude that the average amount of energy available to support lactation was 618 kcal (2.6 MJ) daily. The average energy value of the milk produced was estimated from the weights of the babies to be 597 kcal (2.5 MJ) daily.3. Critical evaluation of those averages, and of the assumptions on which they were based, led to the conclusion that the energy exchanges in human lactation have an efficiency of 90% or more, with a lower limit of about 80%.4. The additional supply of 600 kcal (2.5 MJ) in the daily diet should suffice to support lactation and a ‘round figure’ of 500 kcal (2.1MJ) daily may be regarded as reasonable in official recommended allowances.

Effect of extended photoperiod on appetite, growth and reproductive endocrinology in red deer stag calves

1995 ◽  
Vol 1995 ◽  
pp. 106-106
Author(s):  
M H Davies ◽  
T J Parkinson ◽  
J A Douthwaite ◽  
D W Deakin
Keyword(s):  
Energy Supply ◽  
Red Deer ◽  
Dietary Energy ◽  
Reproductive Endocrinology ◽  
Grass Silage ◽  
Modifying Effect ◽  
Photoperiod Manipulation

Deer experience a period of reduced appetite and growth in winter which has a major impact on venison supply. Photoperiod manipulation has been shown to modify this. The objective of this experiment was to investigate the effect of extended photoperiod and the modifying effect of dietary energy supply in red deer stag calvesForty red deer stag calves born in May/June 1992 were weaned in mid-September and put indoors on a grass silage-based ration. On 30 September the stag calves were weighed and randomised to four treatments groups on the basis of liveweight.

scholarly journals Local etiological factors for the appearance of early childhood caries

2020 ◽  
Vol 12 (2) ◽  
pp. 46-55
Author(s):  
Olga Kokoceva Ivanovska
Keyword(s):  
Early Childhood ◽  
Oral Hygiene ◽  
Primary Teeth ◽  
Tooth Brushing ◽  
Bottle Feeding ◽  
Daily Diet ◽  
Baby Bottle ◽  
Hygiene Measures ◽  
Pregnancy And Lactation ◽  
Oral Hygiene Habits

In the early childhood, at the age of 1 to 1.5 year, immediately after teeth eruption, a special form of caries which spreads only over the primary teeth, often appears. The aim of this study was to determine local factors that affect the occurrence of this dental disease in early childhood.Materials and methods: Our examinees were children 1.5-3.5 years old, where during the standard check-ups we diagnosed starting phases of circular caries: initial lesion (white spot) and superficial form. The mothers of children with diagnosed circular caries were provided with a pre-prepared questionnaire containing data on: the length of the breastfeeding period, the infant's feeding with a bottle and the most commonly consumed contents, oral hygiene habits after feeding the infant, and tooth brushing. Results: Only 30% of mothers breastfed (children) by the 6-th month and 40% by the third month and shorter. About 15% of mothers received fluoride prophylaxis during pregnancy and lactation. The largest percentage of respondents (48%) were fed with a baby bottle, over a prolonged period of time, up to three or more years, mostly with industrial juices (48%). They were mostly consumed at night (40%). Oral-hygiene measures after bottle feeding were observedonly in 16%. The daily frequency of tooth brushing in young children is at most once a day (32%). Conclusion: The analysis of the results showed that circular caries is more common in children who have been breastfed for shorter period and who used the bottle in their daily diet. The most commonly consumed are industrial juices, which are considered "cariogenic drinks" because they are potentially dangerous to primary teeth, especially when consumed at night (pH of saliva drops to 0).

scholarly journals Maternal dietary diversity during lactation and associated factors in Palghar district, Maharashtra, India

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261700
Author(s):  
Sunil Rajpal ◽  
Abhishek Kumar ◽  
Ruby Alambusha ◽  
Smriti Sharma ◽  
William Joe
Keyword(s):  
Dietary Diversity ◽  
Outcome Variable ◽  
Lactation Period ◽  
Food Groups ◽  
Lactating Women ◽  
Marginalized Communities ◽  
Food Items ◽  
Health And Nutrition ◽  
Lactating Mothers ◽  
Daily Diet

Dietary adequacy and diversity during the lactation period are necessary to ensure good health and nutrition among women and children. Behavioral interventions pertaining to health and nutrition counselling during pregnancy and lactation are critical for awareness about dietary diversity. The issue assumes salience for marginalized communities because of the Covid-19 pandemic and associated economic and societal disruptions. This paper assesses the dietary patterns among 400 lactating mothers in the tribal-dominated district of Palghar in Maharashtra, India in 2020. The study is based on primary data regarding consumption of 10 food groups among women across 10 food groups based on 24-hour recall period. The primary outcome variable was binary information regarding Minimum Dietary Diversity defined as consumption from at least 5 food groups. Econometric analysis based on multilevel models and item-response theory is applied to identify food groups that were most difficult to be received by mothers during the early and late lactation period. We find that the daily diet of lactating mothers in Palghar primarily consists of grains, white roots, tubers, and pulses. In contrast, the intake of dairy, eggs, and non-vegetarian food items is much lower. Only Half of the lactating women (56.5 percent; 95% CI: 37.4; 73.8) have a minimum diversified diet (MDD). The prevalence of lactating women with MDD was higher among households with higher income (73.1 percent; 95% CI: 45.2; 89.9) than those in lower income group (50.7 percent; 95% CI: 42.3; 58.9). Lactating Women (in early phase) who received health and nutrition counseling services are more likely (OR: 2.37; 95% CI: 0.90; 6.26) to consume a diversified diet. Food groups such as fruits, meat, poultry, fish, nuts, and seeds were among the rare food items in daily diet. The dietary pattern lacking in fruits, nuts, and heme (iron) sources indicates more significant risks of micronutrient deficiencies. The findings call for improving dietary diversity among lactating mothers, particularly from the marginalized communities, and are driven by low consumption of dairy products or various fruits and vegetables. Among the different food items, the consumption of micronutrient-rich seeds and nuts is most difficult to be accessed by lactating mothers. Also, diet-centric counseling and informing lactating mothers of its benefits are necessary to increase dietary diversity for improving maternal and child nutrition.

Effect of extended photoperiod on appetite, growth and reproductive endocrinology in red deer stag calves

1995 ◽  
Vol 1995 ◽  
pp. 106-106
Author(s):  
M H Davies ◽  
T J Parkinson ◽  
J A Douthwaite ◽  
D W Deakin
Keyword(s):  
Energy Supply ◽  
Red Deer ◽  
Dietary Energy ◽  
Reproductive Endocrinology ◽  
Grass Silage ◽  
Modifying Effect ◽  
Photoperiod Manipulation

Deer experience a period of reduced appetite and growth in winter which has a major impact on venison supply. Photoperiod manipulation has been shown to modify this. The objective of this experiment was to investigate the effect of extended photoperiod and the modifying effect of dietary energy supply in red deer stag calvesForty red deer stag calves born in May/June 1992 were weaned in mid-September and put indoors on a grass silage-based ration. On 30 September the stag calves were weighed and randomised to four treatments groups on the basis of liveweight.

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