A comparative study of blood lipids, electrolytes, and stress levels between captive and semi-captive orangutans (Pongo pygmaeus) under tropical conditions

Blood samples were collected from 27 orangutans (Pongo pygmaeus) (14 captive and 13 semicaptive) and were analyzed for triglycerides, total cholesterol, high density lipoprotein cholesterol (HDLC), low density lipoprotein cholesterol (LDLC), sodium, potassium, chloride, calcium, phosphate, glucose, Cortisol levels, total white blood cells (WBC) and WBC differential count. There were significant differences (P<0.05) in total cholesterol and HDLC level between...

Leadbeater’s possum: Nutritional and environmental challenges of captive possums in eight zoos

Eight zoos participated in a retrospective study by providing diets, post mortems (n = 75) and management practices for captive Leadbeater’s possums (Gymnobelideus leadbeateri). Data was analyzed for correlation of common factors in the morbidity and mortality of captive possums. The results suggest nutritional factors common to most zoos which may play a role in the morbidity and mortality of...