Patent ID: 7674576

Claim:
An aqueous ready to use semen extender composition comprising: (a) about 0.1 wt. % to about 6 wt. % phospholipid obtained from a non-animal source comprising lecithin; (b) about 0.0001 wt. % to about 1 wt. % of anionic surfactant to reduce ice crystal formation during freezing of the composition, wherein the anionic surfactant comprises a sulfate; (c) about 0.5 wt. % to about 3 wt. % carbohydrate; (d) about 3 wt. % to about 14 wt. % freeze agent comprising glycerol; and (e) biological buffer to provide the composition with a pH of about 6.9 to about 7.5, and wherein the composition comprises a sufficient amount of water so that the composition exhibits an osmolality of about 250 mOsM to about 350 mOsM, wherein the composition is substantially free of animal products.