Carotenoids, vitamin A, and vitamin E concentrations during egg development in panther chameleons (Furcifer pardalis)
Abstract 10.1002/zoo.10039.abs Insects are known to be poor sources of preformed vitamin A, leading to the speculation that insectivorous species, including reptiles, may be able to convert carotenoid precursors to meet dietary requirements for this nutrient. This study was conducted to indirectly evaluate carotenoid and vitamin A metabolism in the panther chameleon (Furcifer pardalis). Eggs […]
Circulating levels of α-tocopherol and retinol in free-ranging African elephants (Loxodonta africana)
Abstract 10.1002/(SICI)1098-2361(1999)18:43.3.CO;2-K To date, there are no detailed reports of circulating levels of plasma α-tocopherol and retinol for large samples of free-ranging African elephants (Loxodonta africana). This survey study measured natural circulating levels of α-tocopherol as a measure of vitamin E activity and retinol as an indicator of vitamin A activity, in 70 free-ranging African […]