Science puzzle

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Across
  1. 3. meat is undertaken in which farming
  2. 4. which method is commonly used for improving cattle breeds
  3. 5. scientific mangement of animal livestock
  4. 7. preventive and control measures are used before grains are stored for which time period
  5. 8. calttel husbandry is done for
Down
  1. 1. milk production can be increased by increasing
  2. 2. infections diseases are caused by
  3. 6. maintenance requirement and milk production requirements is for which type of animals