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Domestication and Breeding of Animals
The same processes worked for animals like...
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Domesticated and Bred Pigeons
•All Breeds came from a single original species•
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Domestication of an animal is defined as: an animal selectively bred in captivity and thereby modified from its wild ancestor, for use by humans who control the animals breeding and food supply.
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What traits were humans looking for in animals?
Source of food,milk products, fertilizer, land transport, leather, military assault vehicles, plow traction, and wool.
The big mammals provide most of these traits.
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The 5 major mammals domesticated were:
Sheep From Asiatic Mouflon sheep
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The Goat from the Bezoar goat
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The Cow from the now extinct Auroch
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The Pig from the wild boar
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The Horse from the now extinct wild horses of Russia,. Related to the Przewalski’s horse
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What do you think are the other main animals domesticated by man?•Arabian Camel
•Bactrian Camel
•Llama and Alpaca
•Donkey
•Reindeer
•Water Buffalo
•Yak
•Bali Cattle
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Why was eurasian horses domesticated and not African Zebras?
• Diet
Herbivores are more efficient in terms of energy conservation
It takes less energy to farm a herbivore than a carnivore
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Breeding problems
• Some animals will not have sex in captivity
For example Cheetahs have a courtship in which the female is chased by the male for three days.This is not possible in captivity
Cheetahs have never been domesticated
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Nasty Disposition
• Some animals are just plain nasty
The Grizzly bear, African Buffalo, and Zebra to name a few
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Tendency to Panic
• Some animals are nervous and programmed for fast flight if they sense danger
E.g. Deer and antelope
• Some animals are slower, less nervous and will seek protection in herds if attacked.
E.g. Sheep and goats
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Social Structure (part 1)
• Some animals live in herds, have a dominance hierarchy established, and have overlapping home ranges
This allows the human to take over the role of dominance. The animals imprint on humans
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Social Structure (part 2)
• Solitary, territorial animals that don’t like herds won’t imprint on humans.
E.g. Cats
• Some animals are territorial during breeding seasons, when they fight and don’t tolerate each other
E.g. Deer
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Social Structure (part 3)• Some animals lack a well defined
dominance hierarchy
E.g Bighorn sheep
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Growth Rate
• For an animal to be of benefit to humans it needs to grow fast.
E.g. Cows, sheep
• Animals like elephants grow to slowly to be of use.