cows, carcass, implant, feedlot
This trial was designed to evaluate how various factors impact the value added process of feeding cull cows. Specific management criteria evaluated included initial body condition, days on feed, implants, and cow age. Feedlot performance and carcass trait changes due to these factors were compared. Prolonging the feeding period from 50 to 77 or 105 days tended (P=.10) to increase average daily gain and dry matter intake (P<.01) and had no (P>.15) effect on feed/gain. This response is similar to short term adaptation and feeding of young cattle. Added days on feed increased (P<.001) dressing percentage, ribeye area, and ribfat thickness while decreasing (P<.001) lean age. Days on feed did not improve fat color. Older cows gained slower (P<.001) and were lighter muscled than young cows. Longer feeding periods progressively increased the number of high quality carcasses produced.
Number of Pages
South Dakota State University
Copyright © 1993 South Dakota State University.
Pritchard, R. H. and Burg, P. T., "Feedlot Performance and Carcass Traits of Cull Cows Fed for Slaughter" (1993). South Dakota Beef Report, 1993. 21.