Danish Zoo’s Pet Donation Program for Predator Feed Reignites Ethical Debate
Danish Zoo’s Pet Donation Program for Predator Feed Reignites Ethical Debate

A recent social media appeal by Denmark’s Aalborg Zoo, seeking donations of unwanted household pets to feed its captive predators, has sparked a fresh wave of international controversy and ethical discussion. The zoo clarified that the program, which accepts chickens, rabbits, guinea pigs, and horses for ‘gentle euthanasia’ before being fed to animals like the European lynx, is a long-standing practice aimed at mimicking natural food chains and ensuring predators receive a whole-prey diet.
The initiative, excluding dogs and cats, drew sharp criticism from some online commenters who found the concept of euthanizing healthy pets for animal fodder appalling. However, others lauded the zoo for its practical approach to animal welfare and sustainable feeding practices. Zoo Deputy Director Pia Nielsen emphasized that providing whole carcasses, including fur and bones, is crucial for the natural diet and well-being of carnivores, a common practice in Denmark.
Experts in zoology and animal nutrition largely support the principle of feeding whole prey to captive carnivores, highlighting the nutritional benefits of offal over muscle meat alone. While the Association of Zoos and Aquariums (AZA) in the United States does not endorse soliciting pets for food, its Nutritional Advisory Group acknowledges the importance of providing whole animal remains to stimulate natural feeding behaviors. This incident underscores a recurring difference in zoo practices and public perception between European and American institutions, reminiscent of past controversies involving Danish zoos and their culling policies for population management.
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