No zakaah is due if one ceased to own the nisaab (minimum threshold) before the year was complete.
There is no zakaah on birds.
There is no zakaah on horses and donkeys of they are not for trade.
Animals on which zakaah is due.
There is no zakaah on an’aam animals unless they grazed for the whole year or most of it.
There is no zakaah on an’aam animals unless they graze on pasture with no expenditure on their food.