ABSTRACT
Objective
The objective of this study was to determine the effect of sporadic inclusion of wet
brewers grains (WBG) in cattle finishing diets on the growth and carcass performance
of finishing cattle.
Materials and Methods
Forty-two (n = 42) crossbred steer calves were blocked by BW and fed 1 of 2 finishing
diets in a randomized complete block design with 7 replications of each treatment.
Treatments included a corn silage and whole shelled corn finishing diet (control)
and control + 7.2% WBG (DM basis). Calves were weighed on 2 consecutive days at 1300
h every 28 d. Average weights were used to calculate ADG, DMI, and G:F. Cattle were
transported 160 km in 2 groups for processing under USDA-Food Safety and Inspection
Service inspection. Carcass measurements including hot carcass weight, LM area, 12th-rib
fat thickness, KPH, marbling scores, and USDA QG were collected. Statistical analysis
was modeled in a 2-way fixed ANOVA using PROC MIXED of SAS.
Results and Discussion
Calves fed WBG had lower final BW (P = 0.04) and gained less (P = 0.02) than control calves. No differences (P > 0.05) were observed in carcass characteristics between diets except that carcasses
from WBG-fed calves had smaller (P = 0.01) LM areas than carcasses from control-fed calves.
Implications and Applications
These results indicate that WBG may be included sporadically at low levels in cattle
finishing diets with minimal effect on growth and carcass performance.
Key words
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Article info
Publication history
Accepted:
June 20,
2019
Received:
January 24,
2019
Footnotes
The authors declare no conflict of interest.
Identification
Copyright
© 2019 American Registry of Professional Animal Scientists. Published by Elsevier Inc. All rights reserved.
