Abstract
The levels of vitamin A were determined in liver samples from 40 animals including ruminant species feeding on grass (4 buffalo, 6 blue wildebeest, 5 gemsbok) or mainly on plant material other than grass (10 impala, 3 springbok, 7 kudu and 5 elephants). The mean values obtained for the ruminant species ranged from 212 to 1217 I.U. vitamin A/g liver fresh weight mass and showed no relationship to the percentage of grass in rumen contents. An unusually low level of 67 I.U. was found in elephant.
Highlights
The role of vitamin A as an essential precursor of the visual purple is well known
In a study of the physiological levels of vitamin A in European wild ruminants the question was raised whether liver storage is related to the feeding habits of the various species (Briiggemann, Drescher-Kaden, Hoppe and Walser-Karst 1970)
The ruminant species are grouped according to their feeding habits
Summary
The role of vitamin A as an essential precursor of the visual purple is well known. More recent reports have emphasized its importance for growth, fertility and resistance against infections (Tiews and Hoppe 1972). In a study of the physiological levels of vitamin A in European wild ruminants the question was raised whether liver storage is related to the feeding habits of the various species (Briiggemann, Drescher-Kaden, Hoppe and Walser-Karst 1970).
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