12th Class Biology Strategies for Enhancement in Food Production / खाद्य उत्पादन में वृद्धि के लिए रणनीतियाँ

  • question_answer 3)
    What is meant by the term "breed"? What are the objectives of animal breeding? 

    Answer:

    (i) A breed is a group of animals similar in most of general characters (like appearance, morphological features, size, configuration, etc) and related by descent. (ii) Main objectives of animal breeding are: (a) To develop pure lines of cattle by inbreeding. (b) To tide over the problem of inbreeding depression by out-crossing. (c) To combine the good qualities of two different breeds by cross-breeding. (d) To combine the desirable characters of two different species by inter-specific hybridization so that highly economically useful hybrids are produced.  


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