Lesson Notes By Weeks and Term v4 - JHS 2
ANIMAL PRODUCTION
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ANIMAL PRODUCTION
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Subject: Science
Class: JHS 2
Term: 1st Term
Week: 14
Grade code: B8.2.4.2.1
Strand code: 2
Sub-strand code: 4
Content standard code: B8.2.4.2
Indicator code: B8.2.4.2.1
Theme: LIFE CYCLES OF ORGANISMS
Subtheme: ANIMAL PRODUCTION
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Animal production (rearing animals for meat, eggs, milk, leather, manure, income, etc.) is common in many Ghanaian homes and communities—poultry in backyards, goats and sheep in compounds, pigs and rabbits on small farms, and fish in ponds. For animals to grow well, stay healthy, and reproduce, they must have enough clean water and good feed. When water is inadequate, animals become weak, eat less, produce less (milk/eggs), and may even die. Understanding the importance of water (and feed) helps learners make good decisions in caring for animals and improving family income and nutrition.
Key Terms Animal production: Keeping and managing animals for useful products (meat, eggs, milk, manure, income). Feed: Any food given to animals (e.g., grasses, maize bran, cassava peels, concentrates, kitchen leftovers—where appropriate). Nutrients: Useful substances in feed needed by animals—carbohydrates, proteins, fats/oils, vitamins, minerals, water. Balanced ration: Feed that contains the right amounts of nutrients for an animal’s age and purpose (growth, pregnancy, egg laying, milk production). Dehydration: A condition where the body loses too much water, causing weakness and poor body function.
A. Importance of Water in Animals (Why water is essential)
Water is not just “to drink”; it is a major part of the animal’s body and supports many life processes. 1) Water supports digestion and absorption Animals use water to soften feed, form saliva, and help the stomach and intestines break down food. Without enough water, animals may suffer constipation, poor digestion, and reduced nutrient absorption.
Example (Ghanaian context): A goat eating dry cassava peels needs water to digest them well. If water is scarce, the goat eats less and loses weight. 2) Water helps transport nutrients and remove wastes Blood is mostly water. It carries digested nutrients to body cells for growth and energy. Water helps remove wastes through urine and faeces. If water is low, wastes build up, stressing organs like the kidneys. 3) Water regulates body temperature Animals cool their bodies through sweating (some animals), panting (dogs, poultry), and general heat exchange. In hot Ghanaian weather, animals need more water to prevent overheating.