Question

Q.1.The production of food from animal sources has increased in the last few decades. Justify.

Q.2.Chicken A is (all chicken in reference are of same variety egg laying) exposed to very bright sunlight, chicken B is kept inside a dark building whereas chicken C is kept in a well-lit building. Which chicken will have maximum laying output?

Q.3.Group the following and tabulate them as energy yielding, protein yielding, oil yielding and fodder crop. Wheat, rice, berseem, maize, gram, oat, pigeon gram, sudan grass, lentil, soya bean, groundnut, castor and mustard.

Answer 1

1. The production of food from animal sources has increased in the last few decades. Because,

• Improved varieties and cross-breeds have been developed
• Proper health and disease control has also improved the yield

2. Chicken C will have maximum laying output.

• This is because it is exposed to moderate sunlight. Moderate light intensity and duration has a favourable effect on the egg laying output of the hens.

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