AWIC Newsletter: Environmental Enrichment for Dairy Calves and Pigs, Figure 1.

Figure 1. Calf chewing on Kong toy mounted to the side of the pen with a carriage bolt.

Figure 1. Calf chewing on Kong toy mounted to the side of the pen with a carriage bolt.

Morrow-Tesch, Julie. "Environmental Enrichment for Dairy Calves and Pigs," Animal Welfare Information Center Newsletter, 7(3):3-8, Winter 1996/1997.