Patent ID: 6214371
Filing Date: 2001-04-10
Classification: A23K,A61P,Y10S

Abstract:
A method of increasing fertility in high-level lactation dairy cows, which method comprises controlling the daily continuous administration of a feed additive in the cows' diet; said feed additive being selected from the group consisting ofa rumen-protected mixture of lysine, glutamine and alanine;a rumen-protected mixture of lysine and glutamine; anda rumen-protected mixture of lysine and alanine;wherein the daily continuous administration of the feed additive begins approximately 3 days before calving and ends approximately 84 days after calving;wherein the increase in fertility is manifested as a member selected from the group consisting ofan increase in conception rate;a decrease in non-conception rate; andan early arrival of initial estrus as compared to high-level lactation dairy cows which do not receive the rumen-protected feed additive;and wherein the energy balance of the cows is always plus and the amino acid demand of the cows is satisfied.