In what part of the egg does the chick embryo grow?
Living things can be categorised by what factors?
How many people look after them
How much they cost
Their physical features, their environment & survival needs
How many other animals they are friends with
What is reproduction?
The amount of food a farmer feeds their animals
Another word for vaccination
The process by which new organisms are generated
How farmers protect their animals from predators
What physical and environmental conditions affect a hen's ability to lay an egg?
How many eggs the supermarket needs
Lighting, hen age, nutrition, health, housing and welfare
What the customer is willing to pay for the eggs
How many eggs the hen's mother has laid
What important nutrients does an egg provide to people?
Watch the video to learn about the structure of an egg.
These are the parts of an egg. Click the part that fits the question.
Click on the images to read about some important needs for each of the following animals
Hen
A hen requires a minimum of 8 hours of light per day to perform natural functions.
Emu
A female emu lays its eggs then leaves the nest while the male emu sits on the nest for 8 weeks until the eggs hatch.
Pig
A pig needs to eat both plants and animals (an omnivore) and consume between 11-19 litres of water a day.
Cow
A cow requires 40 litres of fresh water per day to survive.
Dog
A dog needs to be vaccinated against a range of diseases including parasites.
Rabbit
A rabbit requires grass, weeds and certain types of vegetables to survive.
Watch the video to see how an egg forms.
Watch the video to see what affects egg production
Click on the images to learn about how different things can affect how and when a hen lays her eggs.
Animal welfare (how the hens are cared for)
Happy and healthy hens, free from disease and stress, produce more eggs. In Australia, we have very high standards in terms of how farmers care for their hens.
Environment (Housing)
In Australia, hens are housed in three different ways. Some are kept in cages in a big hen house. Some are kept in a big hen house where they are free to roam around. Others are kept in a hen house at night but are free to go outside during the day.
Health
Farmers look after the health of their hens very carefully so that the eggs they produce are good quality. They have programs in place to make sure the hens don't get sick from diseases and to prevent them from being attacked by pests or other predators.
Hen age
Most hens start laying eggs when they are between 3 and 6 months old. When they are young their eggs are small but they get bigger as the hens grow older.
Lighting
Light is very important for a hen as it will determine when she will start laying eggs and how many there will be. Hens lay more eggs in Summer or Spring as there are more hours of daylight. During Autumn or Winter the number of eggs a hen will lay decreases with the daylight hours.
Nutrition
Hens are omnivores so they eat a wide range of foods like plants, seeds and meat. A hen's diet needs to include six main nutrients. Farmers carefully plan what the hens are fed so they are healthy and happy egg layers.
What does the yolk consist of?
The albumen has 9% of what nutrient?
From your observations, how many structures are found in an egg?
Living things can be distinguished from non-living things by...
How many legs they have
The amount of human care they need
How much food they consume
Their physical features, reproduction & environmental/survival needs
A hen will lay fewer eggs when...
They have a change in diet
The number of daylight hours decrease
More hens come to live on the farm
People visit the farm
When do most commercial hens start laying eggs?
Complete this statement: Egg farms work closely with nutritionists to...
Provide a treat once a week
Ensure they eating their vegetables
Develop feed meeting the hen's needs of good health and egg-laying
Ban all sweets
A hen's diet consists of protein, carbohydrates, fats, vitamins, minerals, and...
What are the ways egg farmers reduce the risk of pests and diseases infecting their flock?
What are the three ways hens can be housed on an egg farm?
Shed system, barn system, cage system
Free range system, wild system, shed system
Pet system, wild system, barn system
Cage system, free-range system and barn system
You've completed the lesson!
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