<![CDATA[This study aims to determine the effect of the feeding of concentrate containing fermented seaweed Eucheuma cottonii on the nitrogen balance of young female balinese cows fed silage basic feed or corn fodder. This study used 4 balinese heifers with an age range of two to three years with an initial body weight of 156.2 to 178.4 kg. The research method was an experimental method that used a Latin square design (RBSL) with 4 treatments and 4 periods as a replicate. The treatments were SKC0: natural grass silage 60% + concentrate containing E. cottonii without fermentation 40%, SKC0F: natural grass silage 60% + concentrate containing fermented E. cottonii 40%, FJK0: corn fodder 60% + concentrate containing E.cottonii without fermmentation 40%, and FJK0F: corn fodder 60% + concentrate containing E. cottonii fermentation 40%. The parameters measured were N intake, N urine, N feces, and N balance. The results of this study showed that the feeding concentrate containing fermented Eucheuma cottonii with natural grass silage and corn fodder basic feed had a significant effect (P<0.05) on nitrogen intake and fecal nitrogen. It was concluded that feeding concentrates containing fermented E. cottonii rejected increased nitrogen intake and fecal nitrogen. Meanwhile feeding concentrates containing fermented E. cottonii rejected do not affect the urinary nitrogen and nitrogen balance in heifers fed both natural grass silage and corn fodder basal diets]]>
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