Introduction to Biotechnology — Science STD 9 — Question
Maharashtra BoardEnglish MediumSTD 9ScienceIntroduction to Biotechnology5 Marks
Question
Short Note : Poultry farming.
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Answer
Rearing of egg and meat yielding chickens is called poultry farming.
Chickens raised for laying eggs are called layers . e.g. Leghorn, Minorca, Ancona, Lehman.
Chickens raised for meat are called broilers, e.g. Brahma, Long, Cochin, Aseel.
Rhode Island Red, New Hampshire, Plymouth Rock, Black Rock are varieties of chicken reared for both eggs as well as meat.
The objectives behind development of new hybrid varieties from a cross between Indian varieties like Aseel and exotic varieties like Leghorn are to produce good quality chickens in large numbers.
To develop the ability to withstand high temperature, to use by-products of agriculture as poultry feed, etc.
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