Impact of grazing dairy steers on winter rye (Secale cereale) versus winter wheat (Triticum aestivum) and effects on meat quality, fatty acid and amino acid profiles, and consumer acceptability of organic beef

PloS One
Hannah N PhillipsRobert Turnbull

Abstract

Meat from Holstein and crossbred organic dairy steers finished on winter rye and winter wheat pastures was evaluated and compared for meat quality, fatty acid and amino acid profiles, and consumer acceptability. Two adjacent 4-ha plots were established with winter rye or winter wheat cover crops in September 2015 at the University of Minnesota West Central Research and Outreach Center (Morris, MN). During spring of 2015, 30 steers were assigned to one of three replicate breed groups at birth. Breed groups were comprised of: Holstein (HOL; n = 10), crossbreds comprised of Montbéliarde, Viking Red, and HOL (MVH; n = 10), and crossbreds comprised of Normande, Jersey, and Viking Red (NJV; n = 10). Dairy steers were maintained in their respective replicate breed group from three days of age until harvest. After weaning, steers were fed an organic total mixed ration of organic corn silage, alfalfa silage, corn, soybean meal, and minerals until spring 2016. Breed groups were randomly assigned to winter rye or winter wheat and rotationally grazed from spring until early summer of 2016. For statistical analysis, independent variables were fixed effects of breed, forage, and the interaction of breed and forage, with replicated group as a...Continue Reading

References

Dec 22, 2005·Journal of Agricultural and Food Chemistry·William M ClaphamJames M Fedders
Jul 22, 2008·Journal of Animal Science·J M LeheskaM F Miller
Mar 12, 2010·Nutrition Journal·Cynthia A DaleyStephanie Larson
Nov 1, 2000·Meat Science·G DestefanisS Tassone
Jul 1, 2008·Meat Science·P T GarciaJ J Casal
Jan 30, 2014·Journal of Dairy Science·E A BjorklundH Chester-Jones

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Citations

Feb 23, 2019·Journal of the Science of Food and Agriculture·Albert Ribas-AgustíMassimo Castellari

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Methods Mentioned

BETA
force measurement

Software Mentioned

SAS
SIMS Sensory Evaluation

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