9th Class Science Improvement in food resources

  • question_answer 72)
        Suggest some preventive measures for the diseases of poultry birds.

    Answer:

      (i) Care for the Layers There are following two distinct phases in the life of a layer (a) Growing Period The first phase of the life of poultry, (i.e., the layer) is growing period (upto sexual maturity). During this period the chickens are called growers. The growers require enough space. Overcrowding tends to suppress their growth. The feed is given in a restricted and calculated manner. (b) Laying Period The period from sexual maturity till the end of egg laying is called laying period and the chickens are known as eggers or layers. The layers require enough space and adequate lighting. Light's intensity and its duration has favorable effect on the laying output of the hens. Feed with vitamins, minerals and micronutrients also influence hatching ability of eggs. (ii) Care for the Broilers The housing, nutritional and environmental requirements of broilers are different from layers. Conditions provided have to be favorable for the fast growth and low mortality of broilers. The ratio for broilers is protein rich with sufficient fat. In the poultry feed, the contents of vitamin A and K are kept high.


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