Meat yield and quality of Tanzania Shorthorn Zebu cattle finished on molasses/maize grain with agro-processing by-products in 90 days feedlot period
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Agriculture and Rural Development in the Tropics and Subtropics
Abstract
This study was conducted to evaluate the effects of feeding molasses or maize grain with agro-processing by-products
on yield and quality of meat from Tanzania shorthorn zebu (TSZ) cattle. Forty five steers aged 2.5 to 3.0 years with
200±5.4 kg body weight were allocated into five dietary treatments namely hominy feed with molasses (HFMO), rice
polishing with molasses (RPMO), hominy feed with maize meal (HFMM), rice polishing with maize meal (RPMM)
and maize meal with molasses (MMMO). Ad libitum amount of each dietary treatment and hay were offered to nine
steers for 90 days. Cooking loss (CL) and Warner Bratzler shear force (WBSF) values were determined on M. longissimus
thoracis et lumborum aged for 3, 6, 9 and 12 days. Steers fed on HFMO diet had higher (P < 0.05) nutrient
intake (86.39 MJ/d energy; 867 g/d CP), weight gain (919 g/d) and half carcass weight (75.8 kg) than those fed other
diets. Meat of steers from all diets was tender with average WBSF values of 47.9 Ncm−2. The CL (22.0±0.61%)
and WBSF (53.4± 0.70 N cm−2) were highest in meat aged for 3 days followed by 6, 9 and 12 days. WBSF values
for meat aged for 9 and 12 days from steers fed HFMO and RPMM diets were similar and lower than those on other
dietary treatments× aging periods. Overall, molasses and hominy feed can be used to replace maize meal in feedlot
finishing diets to spare its use in animal feeds.
Description
Journal of Agriculture and Rural Development in the Tropics and Subtropics
Vol. 117 No. 1 (2016) 125–135
Keywords
Agro-processing, Products, Feedlot, Retail cuts, Steers