Abstract
The use of a hydraulic system (piston and cylinder) to block straw and molasses-based multi-nutrient animal feed helps to feed animals with little or no waste, preserving nutrients for a long period, and simplifying transport and storage conditions. Straws are regarded as one of the most essential elements in Ethiopia, particularly tef, wheat, and barley straw. As a result, the motorized animal feed block-making machine was designed and tested for throughput capacity, real capacity, efficiency, durability, and shelf life. The average actual capacity of the machine was 117, 128.5, and 133.3 kg/hr on different feed ingredients at the duration of time after mixing was 30 minutes, 45 minutes, and 1 hour. The durability of the blocks ranged from 87 to 98 % and 94 to 99 % as duration of time after mixing the ingredients increases from 30 min to 1 hr on both urea and straw-based feed blocks respectively. The post-compression expansion decreases from 8 to 5 % and 10 to 6 % as duration of time increases from 30 min to 1 hr on urea and straw-based ingredients respectively.
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