Process for improving calf beef production property by using growth hormone releasing factor gene expression plasmid

Abstract

The invention discloses a calf beef producing property improving method, which comprises the following steps: 1) injecting expressive plasmid of growth hormone releasing factor gene in the calf musculus semitendinosus positing, 2) setting the fitful agent quantity at 5-7mg per calf, 3) adopting the density of injection dilution liquid of expressive plasmid at 0.25% bupivacaine PSS, 4) improving beef producing property without influencing quality and safety.

Description

technical field

[0001] The invention relates to a method for improving the meat-producing performance of livestock, in particular to a method for improving the meat-producing performance of calves by using a growth hormone releasing factor gene expression plasmid. Background technique

[0002] The growth hormone releasing factor gene plasmid is a gene expression plasmid produced by reverse-transcribing the RNA of the growth hormone releasing factor gene into cDNA, cloning it into a plasmid vector, and then transforming it into E. coli, and undergoing fermentation, separation, and purification. Studies on the growth and development of animals with the introduction of growth hormone-releasing factor gene plasmids have shown that injecting growth hormone-releasing factor gene plasmids into piglets, sheep or rabbits can significantly increase their daily gain, carcass lean meat percentage, etc. meat performance. Studies have shown that after the growth hormone releasing factor ...