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This study was conducted to develop effective manufacturing methods of a total mixed ration(TMR) composed of broiler litter(BL) and bakery by-product(BB) for ruminants. Five experiments included a small-scaled manufacture of TMR using a deepstacking method(Exp. 1), its pelletization(Exp. 2), its field-scaled manufachure(Exp. 3), a field-scaled manufacture using an ensiling method(Exp. 4), and a mixing process of deepstacked BL and BB prior to feeding(Exp. 5), BL and BB were mixed at a ratio which makes total digestible nutrients of the TMR 69％. For each experiment, temperture, appearance and physico-chemical properties were recorded and analyzed. The chemical composition data revealed that the mixture of BL and BB showed nutritionally additive balance which resulted from a considerable increase(p＜0.05) of organic matter and a desirable decrease(p＜0.05) of protein and fiber up to the requirement level for growing ´Hanwoo´ steers. Deepstacking of BL and BB in Exp. 1 and 3 resulted in a sufficient increase of stack temperature for pastcurization, little chemical losses, appearance of white fungi on the surface, and partila charring due to excess stack temperature. For Exp. 2 its pelleting, which was successful using a simple, small-seated pelletizer, resulted in a little loss(P＜0.05) of organic matter and an increase(P＜0.05) of indigestible protein(ADF-CP). Ensiling the mixture in Exp. 4 made little effect on chemical composition； however, one month of the ensiling period was not enough for favorable silage parametcrs. Deepstacking BL alone in Exp. 5 tended(p＜0.1) to decrease true protein ： NPN ratio and hemicellulose content and increase ADF-CP content due to the heat damage occurred. Deepstacking or ensiling of BL-BB mixtures and simple incorporation of BB into deepstacked BL prior to feeding could be practical and nutrients-preservative methods in TMR manufacture for beef cattle, although ensiling needed further hygienic evaluation.
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