Poultry health

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Across
  1. 5. A nutrient added to improve health.
  2. 6. Protects chickens from disease.
  3. 7. Vaccine must be kept ________
Down
  1. 1. Type of vaccine used for Newcastle Disease
  2. 2. Good bacteria added to improve gut health
  3. 3. A drug used against bacteria.
  4. 4. Another name for Newcastle Disease