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Blood Biochemical Variables Found in Lidia Cattle after Intense Exercise
Francisco Escalera-Valente1, Marta E Alonso2, Juan M Lomillos-Pérez3
1Academic Unit of Veterinary Medicine, Autonomous University of Nayarit, Tepic 69130, Mexico.
Intense bullfighting significantly alters blood variables in Lidia cattle. Studies show severe hyperglycemia and elevated enzymes like creatine kinase (CK) due to extreme stress and physical exertion.
Area of Science:
- Veterinary Medicine
- Animal Physiology
- Biochemistry
Background:
- Limited data exist on blood biological variables in bovine species subjected to intense exercise or significant physical exertion.
- Lidia cattle exhibit behavioral traits increasing susceptibility to stress.
- Bullfighting represents a scenario of intense stress and exercise with potential for significant metabolic changes.
Purpose of the Study:
- To evaluate changes in blood biological variables in Lidia cattle in response to the intense exercise and stress of bullfighting.
Main Methods:
- Blood samples were collected from 438 deceased bulls post-fight.
- Determined biochemical and hormonal variables in venous blood.
- Descriptive analysis performed using Statistica 8.0.
Main Results:
- Severe hyperglycemia observed, with significantly increased glucose levels.
- Elevated levels of lactate dehydrogenase (LDH), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), alanine aminotransferase (ALT), and particularly creatine kinase (CK).
- Increased total protein, albumin, triglycerides, cholesterol, uric acid, creatinine, urea, cortisol, and testosterone noted.
Conclusions:
- The observed increases in blood variables are attributed to energy source mobilization, tissue/muscle damage, and dehydration.
- Intense exercise and stress during bullfighting induce substantial physiological and metabolic alterations in Lidia cattle.
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