What are the six plans Pi devises to deal with Richard Parker?

Pi's six plans were as follows, from the text:

Plan Number One: Push Him off the Lifeboat.

Plan Number Two: Kill Him with the Six Morphine Syringes

Plan Number Three: Attack Him with All Available Weaponry.

Plan Number Four: Choke Him.

Plan Number Five: Poison Him, Set Him on Fire, Electrocute Him.

Plan Number Six: Wage a War of Attrition.

What are the techniques Piscines father used in the zoo