Association of ultimate pH and stress-related blood variables in cattle.

Abstract

The objective of this study was to investigate the relationship between ultimate pH (pHu) and stress-related blood variables. Of 50 cattle in total, blood samples from 6 cattle which exhibited high (≥6.10) pHu (dark-cutting) were collected, along with the same number of low pHu and intermediate pHu cattle (5.40-5.80; 5.80-6.10, respectively) to determine the concentration of plasma cortisol, glucose, lactate, creatine kinase, lactate dehydrogenase, haptoglobin and serum amyloid A protein. Compared to cattle with low pHu, high pHu cattle showed higher plasma cortisol, glucose, lactate, creatine kinase and lactate dehydrogenase levels at exsanguination. But the concentration of haptoglobin and serum amyloid A protein showed no significant differences among three pH groups. These results imply that measuring plasma cortisol, glucose, lactate, creatine kinase, or lactate dehydrogenase levels at exsanguination may be useful to identify the dark-cutting beef condition.

• Authors: Xiao Lu, Yimin Zhang, Libo Qin, Wenjian Ma, Lixian Zhu, Xin Luo
• Journal: Meat science (Meat Sci) Vol. 139 Pg. 228-230 (May 2018) ISSN: 1873-4138 [Electronic] England
• PMID: 29459299 (Publication Type: Journal Article)
• Copyright: Copyright © 2018 Elsevier Ltd. All rights reserved.

Chemical References

• Blood Glucose
• Lactic Acid
• L-Lactate Dehydrogenase
• Creatine Kinase
• Hydrocortisone

Topics

• Abattoirs
• Animals
• Blood Glucose
• Cattle
• Creatine Kinase (blood)
• Hydrocortisone (blood)
• Hydrogen-Ion Concentration
• L-Lactate Dehydrogenase (blood)
• Lactic Acid (blood)
• Male
• Red Meat (analysis)
• Stress, Physiological