Earticle

초록

영어

This study investigated the stress-related metabolites and hormones in blood and compared the muscle structure to identify the reason for blood splash in Hanwoo beef. Five slaughter houses were selected based on the region (Seoul, Gimhae, Jungbu, Naju, and Goryung) and a previous blood splash record. In total, three-hundred eighty blood samples (n=380) and forty-two muscle tissues (n=42) of control and blood splash Hanwoo beef were collected during the slaughter process and beef grading. Blood metabolites were analyzed including glucose, lactate, creatinine, urea-N, and hormones such as cortisol and thyroxin. Muscle fiber, fiber bundle, and capillary wall thickness were measured under microscope. The concentrations of blood glucose, lactate, and urea-N were not significantly different between the control and the blood splash samples. Cortisol and thyroxin levels were not significantly different in both samples. In contrast, the creatinine level was significantly increased (p<0.05) in the blood splash samples. There were also no significant differences observed in muscle fiber, bundles, and capillary wall thickness between the control and the blood splash tissues. In conclusion, blood metabolites, hormones, and muscle fiber showed no differences between the control and the blood splash animal. However, increased creatinine levels may be used as an indicator for identifying blood splash prior to slaughter in Hanwoo.

목차

ABSTRACT
 Ⅰ. 서론
 Ⅱ. 재료 및 방법
  1. 혈액 및 근육 시료 채취
  2. 혈액분석
  3. 조직 slide 제작
  4. 근육 조직 분석
  5. 통계분석
 Ⅲ. 결과 및 고찰
  1. 혈액내 대사물 및 호르몬
  2. 근출혈 조직의 현미경적 분석
 Ⅳ. 요약
 사사
 Ⅴ. REFERENCES

저자

• 선상수 [ Sang Soo Sun | 전남대학교 동물자원학부 ] Corresponding author
• 이성민 [ Sung Min Lee | 전남대학교 동물자원학부 ]

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