Effects of high-protein concentrates with different rumen undegradable-to-degradable protein ratios on performance and carcass traits in 26-month-slaughtered Hanwoo steers

Raising the RUP level improved performance and intramuscular fat metabolism in Hanwoo steers. The final body weight of the steers in the HRUP group was comparable to that of Hanwoo steers raised under the conventional 30-month fattening period. Overall, feeding a high-CP concentrate with a higher RUP proportion (47% CP) may be a beneficial strategy to shorten the feeding period.