Adequacy Of Food Supply Research Articles

Matrix Differential Equation Modeling Of Sex Ratio Change And Multivariable Effect Analysis Of Ecosystem

Adequacy of food supply has a significant effect on the sex ratio of juvenile sea lampreys, which also adjusts to changes in the external environment, influenced by resource availability, position in the food web, and ecological niche. Therefore, it is necessary to pay attention to the effects of changes in sea lampreys' sex ratio on ecosystem interactions. In this paper, we constructed an ecosystem model. We comprehensively analysed the impacts of sea lamprey's sex ratio changes on the ecosystem from the four dimensions of the logistic equation of the population dynamics model, the sex ratio model, the food web model, and the spatio-temporal model1,2,3. The study showed that the sea lampreys population showed adaptability to changes in the environment4 , and its population was affected by ecological niche and resource utilisation; incubation temperature had a significant effect on the sex ratio; the sea lampreys played an important role in the balance between predators and prey; and showed adaptability to the gradient of the environment, suggesting that spatial heterogeneity exists in the ecosystem. The comprehensive assessment showed that the multilevel impacts of the sea lampreys on ecosystems included the regulation of population dynamics, the maintenance of food web balance and adaptation to changes in the environment, thus playing an important role in the stability and functioning of ecosystems.

Tracing global flows of bioactive compounds from farm to fork in Nutrient Balance Sheets can help guide intervention towards healthier food supplies.

Adequate supplies of healthy foods available in each country are a necessary but not sufficient condition for adequate intake by each individual. This study provides complete Nutrient Balance Sheets that account for all plant-based and animal-sourced food flows from farm production through trade to non-food uses and waste in 173 countries from 1961 to 2018. We track 36 bioactive compounds in all farm commodities recorded by the Food and Agriculture Organization of the United Nations, accounting for nutrient-specific losses in processing and cooking as well as bioavailability. We compare supply to requirements given each country’s age-sex distribution and find that the adequacy of food supplies has increased but often remains below total needs, with even faster rise in energy levels and lower density of some nutrients per calorie. We use this nutrient accounting to show how gaps could be filled, either from food production and trade or from selected biofortification, fortification and supplementation scenarios for nutrients of concern such as vitamin A, iron and zinc.

Comparing Food Security Before and During the COVID-19 Pandemic: Considerations When Choosing Measures

Comparing Food Security Before and During the COVID-19 Pandemic: Considerations When Choosing Measures

Assessing the Impact of Cafeteria Food Related Problems on the Academic Achievement of Students in Debre Berhan University

Education is a process through which mankind transmit experience, new findings and value accumulate over time with the aim of individuals and societies, to make all around participation in the development process. Sufficient healthy intake of food is essential to brain function. Moreover, maximizing brain function is a prime factor in seizing appropriate cognitive capability for example, ability to focus, comprehension, evaluation, and application in learning. Therefore, food is advisable take account for quality and stuffiness of food to protect our students from different infection and declining on their academic performance. The study was trying to assess the impact of Debre Berhan university cafeteria food related problems on the academic achievement of students. The general objective of the study is to analyze statistically the impact of food related problems on academic achievement of students. The study used well organized questionnaire and the source of data is primary data which will done by direct contact of respondents and secondary data which will be obtained from the registrar of Debre Berhan university. The collected data is analyzed by using descriptive and inferential statistics. The sample size determination is made by using statistical formula. Descriptive statistics and multiple linear regression analysis is applied to examine the relationship between the dependent variable academic achievement and food related problem independent variables. Multiple linear regression model is a mathematical equation that provides prediction of the value of dependent variable based on known value of independent variables. The analysis of multiple linear regression revealed that the academic achievement of students was mostly affected by adequacy of food supply, quality of cafeteria sanitation, health related problem, food sanitation and personal hygiene of cafeteria workers, time of cafeteria and those factors affect the academic achievement of students.

Hunger, ethics and the right to food

The management of hunger has to look into the issues of availability, accessibility and adequacy of food supply. From an ethical perspective, this paper argues in favour of the right to food. But, for this to become viable, the state has to come up with an appropriate and effective bill on food and nutrition security, address the issue of inadequate provisioning of storage space by state agencies leading to rotting of food grains--a criminal waste when people are dying of hunger; and rely on local level institutions involving the community, that complement the administrative structure to identify the poor and reduce exclusion and inclusion errors.

Breeding of captive python at Kota Zoo, Rajasthan

496 Among snakes, the Indian python (Python molurus) appears to have bred for the first time at Jaipur Zoo as reported in 1965. Since then many zoos have bred this species (Acharjyo, 1998). The first attempt was made in 1974 at Nandankanan Biological Park, Orissa by Dr. L.N. Acharjyo to record the reproduction and growth rate of Indian Python in captivity. The study was further extended up to 1978 and duly reported by him (Acharjyo, 1980). Successful breeding of captive stock depends on the age, health, living conditions and adequacy of food supply.

Review and appraisal of concept of sustainable food production systems

Environmental degradation, competition for resources, increasing food demands, and the integration of agriculture into the international economy threaten the sustainability of many food production systems. Despite these concerns, the concept of sustainable food production systems remains unclear, and recent attempts to appraise sustainability have been hampered by conceptual inconsistencies and the absence of workable definitions. Six perspectives are shown to underpin the concept. Environmental accounting identifies biophysical limits for agriculture. Sustained yield refers to output levels that can be maintained continuously. Carrying capacity defines maximum population levels that can be supported in perpetuity. Production unit viability refers to the capacity of primary producers to remain in agriculture. Product supply and security focuses on the adequacy of food supplies. Equity is concerned with the spatial and temporal distribution of products dervied from resource use. Many studies into sustainable agriculture cover more than one of these perspectives, indicating the concept is complex and embraces issues relating to the biophysical, social, and economic environments. Clarification of the concept would facilitate the development of frameworks and analytical systems for appraising the sustainability of food production systems.

Evaluation of the dietary intake of the Israeli population, 1949–1977

Routine evaluation of nutritional adequacy of food supplies by comparing these supplies with population age‐ and sex‐weighted Recommended Dietary Allowances (RDA) is advocated. Such analyses reveal that in Israel all nutrients except calcium were supplied in 1975 at higher levels than the allowances, leaving the margin wider than 20 percent for nutrients’ losses due to processing and home waste, suggesting overabundance. Israeli food balance sheets 1949 to 1977, indicate that the availability of calories increased by 16 percent, fats by 52 percent, and proteins by 16 percent, parallel with an increase in meat (454 percent) sugar (52 percent), dairy products (18 percent), vegetable oils (53 percent) and a decrease in the use of wheat products (22 percent), fish (49 percent) and vegetables. Although the current dietary supply is close to U.S. dietary goals and the estimated ratio of polyunsatu‐rated to saturated fat ratios is satisfactory, prevalence of heart disease and cancer is high. Therefore, dietary r...

The national food survey

Any Government needs to make sure that its citizens have enough of the right kinds of food to eat. After air and water, there is no more basic human need; but in assessing the adequacy of food supplies most Governments rely on data relating to production and external trade, rather than on a more direct measurement of food consumption. The statistical series Food Consumption Levels in the United Kingdom (which, despite its name, shows total amounts of foodstuffs available at a primary stage of distribution) can be matched in most developed countries; but such series cannot give any indication of the claims of different sections of the population on total supplies. In contrast, the annual reports of the National Food Survey Committee of Great Britain, entitled Household Food Consumption and Expenditure, provide a continuous evaluation of the amount and cost of food used by different types of household, a record on which a nutritional assessment can be based.