Veterinární medicína, 2010 (vol. 55), issue 9
Biologically active substances of bird skin: a review
J. Rajchard
Vet Med - Czech, 2010, 55(9):413-421 | DOI: 10.17221/2981-VETMED 
Bird skin has a number of specific properties. The uropygial gland is a significant skin gland in many species. The secretion of this gland is particularly necessary for maintaining physical characteristics, including feather waterproofing. In some bird species this gland secretion has a repellent effect against potential mammalian predators; in other species it affects the final colour of feathers. In the investigated species of storks (genus Ciconia), secretions of the uropygial gland have been found to be mixtures of monoester waxes, diester waxes, triester waxes and triglycerides. Wax diesters were also found in the red knot Calidris...
Effects of an aerobic training program on oxidative stress biomarkers in bulls
B.M. Escribano, I. Tunez, F. Requena, M.D. Rubio, R. De Miguel, P. Montilla, P. Tovar, E.I. Aguera
Vet Med - Czech, 2010, 55(9):422-428 | DOI: 10.17221/2979-VETMED
The aim of this study was to evaluate the effect of aerobic training (16 weeks - T1 and 24 weeks - T2) on oxidative stress biomarkers. To this end, GSH, GSH-peroxidase (GSH-Px) and catalase (CAT) activity were analysed in plasma. Nine bulls (3-4 years), were included in this work. The exercise training protocol was performed in a track ("taurodromo") three days per week for 24 weeks and consisted of 400 m warming up, 1200 m to 4-5 m/s, two minutes' resting, 1200 m to 4-5 m/s and, finally, 400 m walking. The results reflected that GSH-Px activity was higher at T1 (6.18 ± 0.45) than at baseline (T0; 2.31 ± 0.08) while the GSH level (2.98...
Effect of acrosome reaction progress in frozen-thawed boar spermatozoa on the efficiency of in vitro oocyte fertilization
S. Martecikova, P. Hulinska, Z. Reckova, A. Pavlik, M. Jeseta, M. Machatkova
Vet Med - Czech, 2010, 55(9):429-437 | DOI: 10.17221/2985-VETMED
A good functional status of cryopreserved boar spermatozoa is very important for successful fertilization of porcine oocytes and in vitro embryo production. The purpose of the study was to evaluate the changes in functional status of boar spermatozoa separated from frozen-thawed semen and capacitated in vitro by caffeine. The effect of acrosome reaction development in spermatozoa on the efficiency of oocyte fertilization has been studied in boars A, B and C. Motile spermatozoa were separated by Percoll gradient, untreated (control) or treated with both 1mM and 2mM caffeine, and capacitated or co-cultured with matured oocytes. The...
Effect of seven-day administration of carprofen or meloxicam on renal function in clinically healthy miniature pigs
P. Rauser, L. Stehlik, P. Proks, R. Srnec, A. Necas
Vet Med - Czech, 2010, 55(9):438-444 | DOI: 10.17221/2980-VETMED
Carprofen or meloxicam are nonsteroidal anti-inflammatory drugs (NSAIDs), which may elicit a variety of renal disturbances. Prior to this study, the effects of carprofen or meloxicam on renal function in pigs were unknown. A total of 21 clinically healthy Goettingen miniature pigs (36.9 ± 7.22 kg) were divided into three groups based on what they were administered - carprofen, meloxicam or saline. First, blood was collected from the jugular vein and urine by ultrasound-guided cystocentesis. Serum urea (U) and creatinine (CR), fractional clearance of sodium (FCNa), urine gamma-glutamyltransferase (GGT) and alkaline phosphatase (ALP) activities,...
The effects of inhalation salbutamol administration on systemic and pulmonary hemodynamic, pulmonary mechanics and oxygen balance during general anaesthesia in the horse
M. Patschova, R. Kabes, S. Krisova
Vet Med - Czech, 2010, 55(9):445-456 | DOI: 10.17221/2984-VETMED
This research aimed to determine the effect of aerosolized salbutamol administration on systemic and pulmonary hemodynamic, pulmonary mechanics and oxygen balance in healthy horses during general anaesthesia. Six healthy Thoroughbreds (body weight range 471-587 kg) underwent two general anaesthesias in dorsal recumbency with and without aerosolized salbutamol administration in randomized order with a one month washout period. The anaesthesia was induced by 1.1 mg/kg of xylazine, 0.02 mg/kg of diazepam and 2.2 mg/kg of ketamine, maintained with isoflurane in oxygen and air and horses were mechanically ventilated. Measurement of arterial and pulmonary...
Prevalence and distribution of Nosema ceranae in Croatian honeybee colonies
I. Tlak Gajger, O. Vugrek, D. Grilec, Z. Petrinec
Vet Med - Czech, 2010, 55(9):457-462 | DOI: 10.17221/2983-VETMED
Nosema disease of European honey bees afflicts bees worldwide. Nosema ceranae is a recently described microsporidian parasite of the honey bee (Apis mellifera) and its geographical distribution is not well known. The disease may have many negative effects on bee colonies and cause high losses for apiculture and consequently in agriculture. With this in mind, a total of 204 samples of dead bees from different localities in Croatia were selected and investigated for distribution, prevalence and diversity of N. ceranae infection, using light microscopic examination and multiplex PCR. Our results show that N. ceranae...
Characterization of drug metabolizing enzymes and assessment of aging in the gilthead seabream (Sparus aurata) liver
H. Ardag Akdogan, A. Sen
Vet Med - Czech, 2010, 55(9):463-471 | DOI: 10.17221/2982-VETMED
Organic anthropogenic compounds such as polycyclic aromatic hydrocarbons, polychlorinated biphenyls, nitroaromatics, dioxins, various pesticides and natural compounds can enter the aquatic environment. These lipophilic compounds are readily taken up into the tissues of aquatic organisms where biotransformation via Phase I and Phase II metabolism can in part, determine the fate and toxicity of the xenobiotics. In this study on gilthead seabream (Sparus aurata), liver microsomal ethoxyresorufin O-deethylase (EROD), methoxyresorufin O-demethylase (MROD), penthyloxyresorufin O-depenthylase (PROD), benzyloxyresorufin O-debenzylase (BROD), aniline...