Effect of graded levels of concentrate supplementation on carcass yield and characteristics of local sheep fed urea treated maize cob as a basal diet

Tesfaye Negewo, Solomon Melaku, Bimrew Asmare, Adugna Tolera


The experiment was conducted with the objective of investigating the effect of graded levels of wheat bran (WB) and noug seed cake (NSC) mixtures on carcass yield and characteristics of local Arsi-Bale sheep fed urea treated maize cob (UTMC). The experiment consisted of digestibility and ninety days of feeding trials followed by evaluation of carcass components at the end of these trials. The experimental sheep were vaccinated against common infectious diseases of sheep, de-wormed and disinfected against internal and external parasites, respectively. The experimental design was randomized complete block design. The treatments were ad libitum feeding of UTMC (T1) and supplementation with mixtures of WB and NSC at a ratio of 2WB:1NSC offered at 150 g (T2), 250 g (T3) and 350 g DM/head /day (T4). Water and salt were offered free choice and UTMC was given ad libitum throughout the experimental period. The result indicated that dressing percentage on slaughter weight (SWT) and hot carcass weight (HCW) basis was higher (P<0.001) for supplemented sheep than the control. Similarly, rib eye muscle area was higher (P<0.001) in supplemented sheep than the control group. Generally, T4 improved carcass yield as well as characteristics and could be used as an alternative feed supplement in UTMC based feeding of Arsi-Bale sheep.


Dressing percentage, Edible offal, Local sheep, Maize cob, Urea treatment

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