The Effects of Total Mixed Ration Feeding with High Roughage Content on Growth Performance, Carcass Characteristics, and Meat Quality of Hanwoo Steers

• 발행기관: 한국축산식품학회
• 저자명: Min Jung Ku Lovelia Mamuad Ki Chang Nam Yong Il Cho Seon Ho Kim Young Sun Choi Sang Suk Lee
• 간행물 정보: 『Food Science of Animal Resources』Food Science of Animal Resources 제41권 제1호, 45~58쪽, 전체 14쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2021.01.31

영문 초록

This study investigated the dietary effect of total mixed ration (TMR) based on high roughage content on the growth performance, carcass characteristics, and meat quality of Hanwoo steers. Twenty-four Hanwoo steers (average body weight, 195.3±4.7 kg; age, 8.5 mon) were randomly allocated to three experimental groups according to forage and concentrate ratio (DM basis): 25:75 (control), 50:50 (T50), and 70:30 (T70). Productivity in the fattening period and final body weight were significantly higher in the control. Average daily gain and feed conversion ratio were the same among treatments. Serum parameters, cholesterol, blood urea nitrogen, and total protein were higher in the control. Carcass weight was comparable in the control and T50 but feeding more roughage was significantly correlated with a higher intramuscular fat. Shear strength and drip loss were higher while n-6/n-3 was lower in T70 compared to the other groups. However, meat color was not significantly different among treatments. In terms of free amino acid contents, glutamic acid and glycine were higher in the control than T50 and T70. Overall, feeding Hanwoo steers with high forage content TMR had the lowest n-6/n-3 ratio of fatty acid content but highest intramuscular fat, shear strength, and drip loss. High forage content TMR is the best feed for Hanwoo steers that gives more benefits for human health and consumption but also provides the best meat grade and quality, which is important in the beef market in Korea.

목차

Introduction

Materials and Methods

Results and Discussion

Conclusion

Conflicts of Interest

Acknowledgments

Author Contributions

Ethics Approval

References

키워드

Hanwoo steers meat quality grade roughage total mixed ration