Page 109 - Agriculture_Form_Three

Agriculture for Secondary Schools

Nutrient Function(s) Sources
Fats & Oils • They are components of body cells • Milk
(lipids) • They serve as condensed energy • Meat meal

reserves and they provide two times • Fish meal
more energy than carbohydrates
• Oil seeds and oil
• Excess fats stored in the body acts seed cakes
as insulating layer in animal’s body • Excess
hence prevents loss of heat carbohydrates that

• They are carrier of fat-soluble can be converted and
vitamins which are vitamin A, D, E stored in animals’
and K bodies

Water • Acts as a solvent for various • Drinking water
substances in animal’s body • Water contained in
• Helps in the regulation of body feeds
temperature
• It is an essential component in • Water produced
through metabolic
most body fluids such as digestive activities in animal’s
enzymes and blood body
• Acts as a medium of many body
functions such as digestion and
excretion
• Helps in transportation of food
nutrients within the body
• Maintains body shape by making
cells turgid
Minerals • They are essential in formation of • Forages
animal products such as milk, meat • Oil seed cakes
and eggs
• They are constituents of enzymes • Meat meal
which are catalysts in many • Fish meal
metabolic reactions in animal body • Blood meal
• They are components of many • Milk meal
biochemical body regulatory
substances such as enzymes, • Mineral premixes
hormones and anti-oxidants • Bone meal

• Limestone

Student’s Book Form Three
98

10/01/2025 12:31
AGRICULTURE FORM 3 9.11.2022.indd 98
AGRICULTURE FORM 3 9.11.2022.indd 98 10/01/2025 12:31