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Additional
Information Useful for Discussion
Additional
Duck Facts:
Do you know that the duck's feet cannot
feel cold even if it swims in icy cold water?
Well, the reason for this is because its
feet have no nerves or blood vessels !!
Another special thing that the duck has
is its waterproof feathers. There is a special
gland that produces oil near the duck's
tail, which spreads and covers the outer
coat of the duck's feathers, making it waterproof.
Beneath the waterproof coat are fluffy and
soft feathers to keep the duck warm. To
keep these clean they preen themselves.
Additional
Cow Facts:
1. A cow is a ruminant with four compartments
to her digestive system The mother cow makes
very special milk for her calf; it is called
colostrum. Colostrum has extra vitamins
and protein and is very good for the calf.
2. Milk is stored in the cows udder.
The udder is a large bag with four teats.
The cows go to the milking parlour where
the dairy farmer washes their teats. A milking
machine with four teat cups is attached
to the cow milking never hurts the cow
How much blood
needs to pass through the udder to produce
one gallon of milk?
500 gallons of blood need to pass through
the udder to make one gallon of milk.
Why do cows
look like they have earrings?
Milk cows usually have their ears pierced
with I.D. tags. Each cow has a different
number that allows the dairy farmer to track
her activities by computer. The cow's milk
weight is recorded in the computer as well
as any medicines she receives.
Do cows have
special teeth for eating grass?
Cow's teeth are different from ours. On
the top front, cows have a tough pad of
skin instead of teeth. They have 8 incisors
on the bottom front and 6 strong molars
on the top and bottom of each side to grind
their food. Cows have a total of 32 teeth.
How many stomachs
does a cow have?
Some people say that a cow has four stomachs.
Actually, a cow has one stomach with four
compartments.
What's it chewing
the cud? Ruminants
regurgitate their food and chew cud. (Cows
are ruminants.) It helps them get the most
out of difficult-to-digest foods like grass.
A cow spends a lot of time eating
6 - 8 hours per day.
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