Abstract:
The study was conducted to assess practices of cattle fattening and determine the quality of 
beef produced from bulls reared by smallholders in Highland and Lowland areas of the Meta 
Woreda of East Hararge Zone, Oromia Region, Ethiopia. Both primary and secondary data 
were used. Primary data were collected from 120 sample households and A total of 24 bulls 
with age categories of <5, 5 - 7, and 7 - 9 years were used for the study. Beef samples for the 
study were obtained from the Kulubbi abattoir. WBSF device was used to evaluate 
instrumental tenderness. The color of the meat was evaluated using Hunter Lab Mini Scan EZ 
while water holding capacity was evaluated using gravimetric method. For data analysis, the 
study employed generalized linear model (GLM) procedure with 2x3 factorial arrangements 
(highland and lowland, three age categories) using the SPSS software version 20. Gender, age 
group, farm size and source of income are estimated to have a significant influence on 
highland and lowland cattle fatteners' households. Crop residues (50.8%) and green feeds 
(35%) were the identified as the major feed resources, while wheat bran (36.7%) was the most 
common supplementary feed across both agro-ecologies used for cattle fattening. The majority 
of farmers (33.3%) prefer a five-month fattening period, followed by (29.2%) for four months. 
Across agro-ecologies, (37.9%) in lowland areas and (29%) in highland areas favor a five month duration. 65% of farmers start the fattening season in August and end it in mid December, aligning cattle sales with the Kullubii Gabrel religious holiday. The average daily 
weight gain of between agro-ecologies and age categories ranges from 0.45 to 0.68 kg. 
Interactions effect of ages and agro-ecologies exhibited significant difference (P < 0.05) on 
the color lightness and yellowness. Agro-ecology significantly affected (P < 0.05) 
instrumental tenderness with beef from lowland 16.66 N and highland 26.27 N. In general, 
cattle fattening practices need to be supported by proper training and extension systems 
focused on improved fattening technologies and efficient resources use. Suggestion it is 
important to improve the quality of beef and make better use of resources by providing 
targeted training, extension support, and implementing better cattle fattening practices.