Interpretive Summary: Influence of source of origin and region of finishing on growth performance and carcass characteristics of finishing heifers fed in the United States
By: Erin R DeHaan, Colten W Dornbach, Amanda D Blair, Nicole C Burdick Sanchez, Jeffery A Carroll, Paul R Broadway, Warren C Rusche, Kristin E Hales, Zachary K Smith
The objective of this research was to evaluate the growth performance and carcass traits of feedlot heifers sourced and finished in different geographical regions in the United States. Overall, heifers transported to higher ambient temperatures had decreased dry matter intake, final body weight (BW), and carcass quality, but had improved carcass cutability compared to non-transported heifers. Heifers transported to lower ambient temperatures finished to similar final BWs and had improved carcass quality at the same level of 12th rib fat compared to non-transported heifers but had decreased carcass cutability. Collectively, cattle performance is impacted by their source of origin, the region they are finished, and the time of the year at which they are transported to a finishing location.
Read the full article in the Journal of Animal Science.