SHORT COMMUNICATION
Milk fatty acid profile of cows under the influence of
alpine hypoxia and high mountainous forage quality
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Institute of Animal Science, Animal Nutrition, Swiss Federal Institute of Technology (ETH) Zurich,
ETH Centre/LFW CH-8092 Zurich, Switzerland
Publication date: 2004-08-30
Corresponding author
F. Leiber
Institute of Animal Science, Animal Nutrition, Swiss Federal Institute of Technology (ETH) Zurich,
ETH Centre/LFW CH-8092 Zurich, Switzerland
J. Anim. Feed Sci. 2004;13(Suppl. 1):693-696
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ABSTRACT
Influences of high alpine hypoxia, of an alpine forage-only diet and of a typical alpine feed
quality on milk fat composition of dairy cows were tested at two altitudes (400 and 2000 m a.s.l.)
with two hay types one originating from lowlands one from highlands and fed at both altitudes.
Hypoxia caused reduced proportions of n-3 fatty acids, particularly α-linolenic acid, in milk fat but
the alpine feeding regime increased proportions of all n-3 fatty acids and CLA to a much greater
extent. Feeding alpine hay decreased the proportion of the saturated fatty acids in milk fat.
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