Is There A Beef Marbling Gene

Until now there was no comprehensive review of research into the genetics of marbling but texas a m geneticist andy herring recently completed the white paper genetic aspects of marbling in beef carcasses the literature review encompasses 52 studies spanning several decades.

Is there a beef marbling gene.

Genetic aspects of marbling in beef carcasses andy d. Herring department of animal science texas a m university introduction. Inproceedings smith2012increasingmg title increasing marbling gene expression in beef cattle with dietary lipids author s. Stearic acid and the amino acid valine v make deposited fat harder.

The goal of this paper is to review the genetic aspects of marbling in beef carcasses and to serve as a reference source. Texas a m geneticist andy herring recently completed the white paper genetic aspects of marbling in beef carcasses the literature review encompasses 52 studies spanning several decades. Johnson year 2012 s. Scd or stearoyl coa desaturase is a gene family that distinguishes the healthy fat marbling in wagyu beef from other beef.

Getting cattle to hit the higher quality grades takes effort at every link in the production system. Scd testing identifies cattle with the dominant japanese genotype that produces a certain fat composition. It is a complex trait and has many biological pathways related to muscle and fat. What was missing until now was a comprehensive review of research into the genetics of marbling and some reflection on the upshot.

Johnson published 2012 currently feedlot producers tend to overfeed pens of cattle to ensure adequate marbling which. Furthermore there is a difference in flavour between grass fed and grain fed beef. Marbling or the intramuscular flavor fat. Marbling in a steak from grass fed cattle offers a beefier flavour than grain fed cattle which tend to have a.