Neutral mobs not spawning

Neutral mobs are not spawning (cows, sheep, chickens, pigs, horses) although hostile mobs are.  At world spawn (in a cherry grove) there were a few pigs and one sheep, but when I traveled away there have been no new spawns.  Cows and horses exist in villages.  Rabbits seem to spawn fine, as does the Merchant.  Thanks!

Seed: -754 687 104 144 113 9804