Location: Forage and Livestock Production Research
Project Number: 3070-31630-007-01-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Sep 1, 2014
End Date: Aug 31, 2019
Determine the influence of finishing system and genetic type on beef quality.
Angus cows of two types (small-frame score and moderate frame score) will be bred to Angus bulls of similar type and used to generate small- or moderate-framed calves. Charolais-sired calves from Angus:Brahman (F1) cows will also be used to provide calves with differences in frame score and genetic composition. After weaning, calves from each frame score class will be assigned at random to two replicates of two postweaning treatments: 1) conventional [fall and winter wheat pasture (Mar 1) followed by feedlot finishing]; and 2) extended forage [fall and winter wheat pasture through grazeout (May), summer grazing on annual and perennial warm season forages or alfalfa, followed by a short feedlot phase (30-50 days) if needed]. Longissimus dorsi samples will be collected, aged for 14 days, and then frozen. Steaks will be analyzed via Warner-Bratzler shear force, trained taste panel, and for fatty acid profiles.