food resources-akhila

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WELCOME “Think positive, be positive and positive things will happen “

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FOOD RESOURCES

AKHILA.D ROLL.NO. 32

FOOD RESOURCES

BYAKHILA.DBMROLL NO: 32

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Food is the chief essential materials which the body need for its well being.

These essential materials are called nutrients.

Good food is indespensable for health at all stages of life and for satisfactory growth during infancy,childhood,adolescence and adulthood.

INTRODUCTION

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FOOD RESOURCES

CONTENTS

● SOURCE OF FOOD

● FOOD PROBLEMS

● BALANCED DIET

● CHANGES CAUSED BY AGRICULTURE

● CHANGES CAUSED BY OVERGRAZING

● EFFECTS OF MODERN AGRICULTURE

● FOOD PROBLEMS IN INDIA 5

FOOD RESOURCES

SOURCE OF FOOD

● CROPS

● LIVESTOCK

● ACQUA CULTURE

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FOOD RESOURCES

CROPS ● Potatoes,barley,oats- mountaneous region

● cassava, sweet potatoes and other roots and

tubers - Amazonia,Africa and South Pacific

● Drought resistent sorghum and millet - Africa

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FOOD RESOURCES

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FRUITS AND VEGETABLES

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LIVESTOCK

● Domesticated animals are an important food source

● “Ruminants “

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FOOD RESOURCES

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ACQUACULTURE

● The production of food from acquatic habitats - marine and fresh water

● provides only a small amount of the world’s food at present

● source of protein for many countries especially in Asia and Europe

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FOOD RESOURCES

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FOOD PROBLEMS

● UNDERNOURISHMENT

● MALNOURISHMENT

● OVERNUTRITION

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FOOD RESOURCES

UNDERNOURISHMENT

● Lack of sufficient calories in available food

● Average calorie intake over the world is 2,500 calorie per day

● lack of energy and nutrients makes them more succeptible to infectious diseases

● poor diet and poverty

● stunted growth, mental retardation

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FOOD RESOURCES

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MALNOURISHMENT

● Lack of specific components of food such as vitamins or essential

chemical elements

● long term and insidious

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FOOD RESOURCES

PROBLEMS

● MARASMUS● KWASHIARKOR● PELLAGRA● GOITRE &HYPOTHYROIDISM ● CHRONIC HUNGER

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FOOD RESOURCES

OVERNUTRITION

● Form of malnutrition in which the intake of nutrients is oversupplied

● The amount of nutrients exceeds the amount required for normal growth, development, and metabolism.

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FOOD RESOURCES

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FOOD PROBLEMS IN

INDIA…...

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CAUSE OF FOOD SHORTAGE OF INDIA

● POPULATION GROWTH

● LOW PRODUCTIVITY

● VIGOUROUS FARMING

● NATURAL CALAMITIES

● LESS SUPPORT FROM DEVELOPED COUNTRIES

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FOOD RESOURCES

OTHER CAUSES……...

● Want of improved methods of cultivation through science and technology.

● Poverty and ignorance of Indian formers.● Tillers are not in feasts and picnics.● Wastage of food in feasts and picnics.● Wastage of food in wrong process of cooking.● Wastage of food for ignorance of preserving

method.● Want of cold storage facility.● Defective food habit.● Dishonesty of dealers.

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FOOD RESOURCES

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How to solve the food problem of India?

● Introduction of improved method of cultivation based on science and technology.

● Improvement of financial and educational status of the Indian cultivators.

● Attracting educated people to the profession of cultivation.

● Provision of water-pipes, electricity, insecticides, fertilizer and research work for agriculture.

● Mechanization of agriculture.● Equitable land-reform.● To refrain from holding feast and picnics in order to

check the possible wastage of food.25

FOOD RESOURCES

● To know the proper method of dressing and cooking in order to check the wastage of food.

● To know the method of food preservation in order to save the perishable foods from wastage.

● Provision of cold storage in every village and refrigerator in every household.

● Changing food habit on everybody’s part.● Family-Planning through birth control.

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FOOD RESOURCES

BALANCED DIET

How can we avoid malnutrition and the ill effects of affluence such as obesity and cardiovascular disease ?

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FOOD RESOURCES

COMPOSITION OF A BALANCED DIET

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CHANGES CAUSED BY AGRICULTURE

● LOCAL CHANGES

● GLOBAL CHANGES

● REGIONAL CHANGES

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FOOD RESOURCES

CHANGES CAUSED BY OVERGRAZING

● Reduction in the diversity of plant species

● Reduction in the growth of vegetation

● Dominance of plant species that are relatively undesirable to the cattle

● Increased soil erosion

● Damage from the cattle trampling on the land

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FOOD RESOURCES

EFFECTS OF MODERN AGRICULTURE

● FERTILIZERS

● PESTICIDES

● WATER LOGGING

● SALINITY

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FOOD RESOURCES

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CASE STUDIES

● KESTERSON WILDLIFE REFUGE

● LAKE APOPKA,FLORIDA

● DDT AND FRAGILE EGGSHELLS

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FOOD RESOURCES

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