novatech":3sa6u6tn said:
All the research I have done points to the fact that if cattle are well marbled they are not feed efficient. Granted that higher quality beef will bring a premium but they are also more expensive to raise. If you have any information contrary to this please give a site that supports it as I am interested.
Further education is also part of my philosophy.
Novatech my information points to the fact that back fat and fleshing ability are key contributers to feed efficiency not marbling. Everyone should determine how they want to operate their farm and purchase cattle that will provide sufficent preformance for their enviroment. It may take me some time to find you a credible source , but I will look for it and copy it for you. Thanks for the question.
Project Number 00E-023-3 Prior Number
Status Completed
Project Title Effect of Sire Marbling EPD on Premium Required to Feed Steers for a Quality Market
Research Program External Competitive Grants Program
Principal Investigator Larry L. Berger
Department/College Animal Sciences
Institution University of Illinois at Urbana-Champaign
Co-Investigator(s) (name, department/
college and institution) Dr, Paul M. Walker Agriculture Illinois State University
Total C-FAR Funding $70,900
Type of Research Multidisciplinary,Inter-Institutional
Funding Period Jul 01, 1999 -- Jun 30, 2001
C-FAR Research
Focus Area Agricultural Production Systems
Research Category Cattle
Purpose and Goals
Ninety-Six Simmental-Angus steers sired by bulls of known marbling Expected Progeny Difference (EPD) were early-weaned and individually fed high energy diets. This trial was replicated over two years with 48 steers per year. Steers were ultrasounded at 60-day intervals to estimate the rate of marbling deposition. Steers were harvested at a commercial packing plant at approximately 14 months of age weighing 1400 lbs. Carcass quality grades ranged from select to prime and averaged low choice. Progeny of sires with the lowest marbling EPD had the lowest USDA quality grades (low select) and those from the highest marbling EPD had the highest quality grades (average choice). Rate of gain decreased and the amount of feed required per unit of gain increased with length of time on feed. However, quality grade as estimated by ultrasound sound measurement had little effect on feed efficiency. Cost of gain was not highly correlated with quality grade showing that using sires with high marbling EPDs can improve carcass value without increasing the cost of production. These data show that Illinois beef producers who retain ownership of their cattle all the way to harvest can benefit by using sires with high marbling EPDs.
Outcomes and Impact
These data show that Illinois beef producers can improve the carcass merit of their cattle and obtain significant premiums when using high marbling EPD bulls. These data suggest that using high marbling EPD bulls does not affect cost of production compared to low marbling EPD with similar growth perfromance. Using a combination of early-weaning and high marbling EPD bulls provides Illinois beef producers with the potential to gain significant quality premiums without the discounts of yield grade four carcasses.
Beneficiaries The primary beneficiaries of this research are Illinois beef producers who retain ownership or who purchase feeder cattle from producers using bulls with high marbling EPDs.
Outreach
These data are being presented at regional beef meetings, in the Illinois Beef Magazine, at Field Days and through Feeder Day reports
Leveraged Funding
Related Websites
Initial Entry Date October 29, 2001
Information Updated October 29, 2001
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