Abstract
The study aimed to determine the optimal concentration of the amino acid proline and low-density lipoproteins (LDL) extracted from egg yolks to be used individually or synergistically in dilution solutions, and to estimate their effectiveness in preserving the dilated and frozen semen inside and outside the reproductive septum of Awassi rams and to determine its fertilizing capacity.
Keywords: Awassi sheep, semen, low density lipoproteins, proline, artificial insemination