FREE AMINO ACIDS IN THE OVIDUCT FLUID OF THE EWE

Abstract
Oviduct fluid was col-lected by means of a cannula sutured into the oviduct. A composite fluid sample representing all stages of the estrous cycle contained lysine, histidine, arginine, aspartic acid, serine, glutamic acid, gly-cine, alanine, valine, methionine, isoleucine, leucine, tyrosine, phenyl-alanine and cystine. Cystine was not detected in fluid collected during an interval 1 day before until 2 days after the onset of estrus. Five unidentified compounds were present in all fluid samples analysed.

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