A study of the investigatory behavior of the dairy cow

摘要: Abstract A commission to investigate the possible ingestion by dairy cattle of air-dropped wildlife baits for vaccination against sylvatic rabies provided an excellent opportunity a detailed study bovine investigatory behavior. Twelve unarmed (half which were placed in bag with liver slurry serving as fox attractant) each two pastures. group 9 cows was then allowed graze freely on pastures from approximately 08.00 15.00 h 5 consecutive days. Continuous direct observation revealed that tendency approach varied type bait encountered, and habituated over 5-day study. However, once investigation initiated, likelihood contacting manner contacted not readily influenced prior exposure baits. The being investigated did influence cow making contact, but contacted. Flehmen, only occurred following head contact bait, most commonly followed mouth or tongue less likely be employed objects investigated.