METHOD OF BREEDING HIGH-LEVEL LACTATION DAIRY COWS USING RUMEN-BYPASSED AMINO ACIDS

摘要

Lysine and methionine which are limiting amino acidsof dairy cows are administered to dairy cows to decreasethe BUN value that has an adverse effect on the conceptionrate and to increase the blood glucose required to improvethe energy balance, that alanine and glutamine areadministered to dairy cows to increase the blood glucoseand to improve the liver function, and that the use ofthese amino acids is effective for keeping good conditionsof dairy cows, allowing earlier arrival of initial estruswithout any stress, improving the mating conception rateand decreasing the non-conception rate.