Harrold, D., Saunders, R. and Bailey, J. (2020) “Dietary putrescine supplementation reduces faecal abundance of Clostridium perfringens and markers of inflammation in captive azure-winged magpies”, Journal of Zoo and Aquarium Research, 8(2), pp. 114–123. doi: 10.19227/jzar.v8i2.456.