Question

Fibres obtained From Animals
You will learn About
Animals that yield wool Though people
started domesticating sheep from around
10 000 BC they learnt the technique of getting
wool from theepskin about 5000 years after
There are different types of wool available in
the market. They are of different quality and
price. The quality of wool is determined by
various factors like fibre diameter colour fibre
strength et
important wool characteristic which determines
quality and price. The finest and most valuable
wool comes from Merino a breed of sheep
from Spain
animal fibres are obtained from animals.
They are of mainly me types wool and silk
weat comes from sheep soat camet vak and
some other animals. These wool-vielding
animals bear hair on their body. Sik is another
annalibre obtained from silk form
wool Wool is the
soft thick hair which
shows on the bodies of
sheep and some other
imals. It is type of
protein that can trap air in
it. Being a poor conductor of heat, wool keeps
the animals warm. The main source of wool is
sheep, although it is also obtained from goats,
camels yaks and Llamas. The thick covering of
wool on a sheep is called fleece. It is of two
types--one is soft under har part which is close
to skin and another is the hard upper hair part.
Usually the under hair part is used to prepare
soft wool. Wool fibres have the power to absorb
and give off moisture. They can absorb
moisture, almost one-third of their own weight.
wool is generally creamy white in colour,
although some breeds of sheep produce natural
colours such as black, brown silver and random
On an average, a sheep produces about 2 to
30 pound of wool annually. The amount of wool
that a sheep produces depends upon its breed
nutrition, and shearing interval. A lamb (young
sheep) produces less wool than mature animals.
Due to their larger size, rams (adult male sheep
usually produce more wool than ewes
female sheep) of the same type.
Science HORIZON-7.​

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