What is lactation period? Name two breeds of cattle which are selected for their long lactation period. Why are they crossed with local breeds?
Q.14. (a) What is lactation period? Name two breeds of cattle which are selected for their long lactation period. Why are they crossed with local breeds?
(b) What are roughage and concentrates ?
Ans. (a) The period of milk production after the birth of a calf.
Jersey, Brown Swiss.
Local breeds show excellent resistance to diseases. The two can be cross breed to get animals with both the desired qualities.
(b) Roughage: Largely fibrous food.
Concentrates: Low in fiber and contain relatively high levels of proteins and other nutrients.
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