1) The animals were in lack of food after the weather was drought for a long time.in: I feel you need it.
was: shuold be 'had been', because you said 'for....'.
drought(n): must be dry(adj).
2) Jone unwillingly had to reduce the ration to each animal.the: ration is a name you have to put (a or the).
to: I think it should be of.This correction is better to be confirmed by an instructor.