Changes in selected biochemical indices, leukocyte profile, and pterins as biomarkers of immune system activity due to antipecking measures in pheasants
| Autor: | Vladimira Pistekova, Petr Marsalek, Jan Chloupek, Iveta Bedanova, Eva Voslarova |
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| Rok vydání: | 2013 |
| Předmět: |
Male
medicine.medical_specialty animal structures Biopterin Pheasant chemistry.chemical_compound Immune system Stress Physiological Internal medicine biology.animal Lactate dehydrogenase medicine Leukocytes Animals Chronic stress Galliformes biology Behavior Animal food and beverages Neopterin General Medicine biology.organism_classification Pterins Aggression Endocrinology Beak chemistry Immunology Animal Science and Zoology Female Phasianus Biomarkers |
| Zdroj: | Poultry science. 92(7) |
| ISSN: | 0032-5791 |
| Popis: | The physiological changes in response to beak trimming and spectacle usage as antipecking measures were monitored in 10-mo-old common pheasants (Phasianus colchicus). Short-term analysis conducted before the beginning of the laying period showed immediate increases of plasma corticosterone (P < 0.05) and lactate dehydrogenase (P < 0.001) concentrations and decrease of plasma triglycerides (P < 0.01) levels in response to both beak trimming and the application of spectacles. Beak-trimmed pheasants exhibited higher plasma corticosterone concentrations than pheasants fitted with spectacles (P < 0.001). To assess long-term changes, blood samples for biochemical (neopterin and biopterin determination) and hematological (leukocyte profile determination) examinations were taken from beak-trimmed, spectacles-fitted, and control pheasant hens housed in cages during their laying period. At the end of the laying period, hens fitted with spectacles exhibited lower concentrations of plasma neopterin (P = 0.005) and biopterin (P = 0.005) than beak-trimmed pheasant hens. Our findings suggest that the immune system was suppressed in spectacles-fitted pheasant hens as a result of chronic stress, as also indicated by the higher heterophil-to-lymphocyte ratio (P = 0.001) compared with beak-trimmed hens. Our study found a negative correlation (r = -0.31, P = 0.019) between the heterophil-to-lymphocyte ratio and plasma neopterin concentration. This study demonstrated that both beak trimming and use of spectacles are not only stressful procedures for pheasants, but long-term effects may also include a negative impact on the immune system. |
| Databáze: | OpenAIRE |
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