2. What biosecurity measures does the hatchery take?

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Provide a closed environment.

Clean the hatch chamber with chemical.

Explanation:

Biosecurity is a measure which is taken in order to protect or prevent the population of existing species from infestation of harmful organisms and chemical substances. The hatchery should provide a closed environment in order to prevent the entry of harmful organism. Cleaning of the chamber where eggs were hatched with chemicals in order reduce the infestation of microorganism.