Veterinární medicína, 2005 (vol. 50), issue 9
Sex pheromones in amphibians: a review
J. Rajchard
Vet Med - Czech, 2005, 50(9):385-389 | DOI: 10.17221/5637-VETMED 
Amphibians are interesting animals, very often kept by aquarists and vivarists. Their ability of intraspecific chemical signalization belongs to very interesting biological features. The skin glands of anurans secrete various biologically active compounds. The pheromones are peptides consisting of various numbers of amino acid residues and their synthesis is regulated by hormones (e.g. prolactin and androgens). Similarly, the responsiveness of the vomeronasal epithelium to some of these compounds is enhanced by some hormonal substances (prolactin and oestrogen). Hypophyseal hormones, arginine vasotocin and gonadotropin-releasing hormone are involved...
Differences in the occurrence of selenium, copper and zinc deficiencies in dairy cows, calves, heifers and bulls
L. Pavlata, A. Podhorsky, A. Pechova, P. Chomat
Vet Med - Czech, 2005, 50(9):390-400 | DOI: 10.17221/5638-VETMED
This study was conducted to evaluate the mineral status of various bovine categories reared on the same farm, and to monitor the quality of their mineral nutrition in this way. Blood samples were collected on 20 farms in various regions of the CzechRepublicto diagnose the selenium (Se), copper (Cu) and zinc (Zn) status of dairy cows, calves, heifers and bulls. Blood samples were collected from 5 dairy cows and their calves, 5 heifers and, whenever possible, also from 5 bullocks (10 farms). To assess the Cu and Zn status of the cattle, blood serum concentrations of the elements were determined by flame AAS. The Se status assessment was based on the...
The effect of long-term high heavy metal intake on lipid peroxidation of gastrointestinal tissue in sheep
S. Faix, Z. Faixova, K. Boldizarova, P. Javorsky
Vet Med - Czech, 2005, 50(9):401-405 | DOI: 10.17221/5639-VETMED
The present study was designed to determine the effects of dietary heavy metal intake on malondialdehyde levels (MDA, product of cellular lipid peroxidation) in the tissues of gastrointestinal tract, kidneys and liver of sheep. The experiment was carried out on twelve female sheep of mixed breed, weighing from 30 to 35 kg, one year old. The first group of sheep was bred in the conditions of laboratory farm. They had free access to hay and 300 g of barley per sheep was added daily. The second group grazed on a natural pasture in the environs of a factory processing copper ore. The second group of sheep had significantly higher concentrations of copper...
The effects of humic acid on egg production and egg traits of laying hen
S. Kucukersan, K. Kucukersan, I. Colpan, E. Goncuoglu, Z. Reisli, D. Yesilbag
Vet Med - Czech, 2005, 50(9):406-410 | DOI: 10.17221/5640-VETMED
The effects of humic acid on feed consumption, egg production, feed efficiency, egg weight and external and internal egg quality of laying hens were studied during feeding periods. A total of 180 (Hysex Brown) layers (36 weeks of age) were used in this experiment. There was one control and two experimental groups, each containing 60 hens and 4 subgroups. The experimental period lasted 16 weeks. At the end of the experiment, the supplementation of humic acid had a significant effect on feed consumption and feed efficiency. An increase in egg production was determined when humic acid was added to the diets at 30 g/t of feeds (91.70%) and 60 g/t of feeds...
Intrarenal arterial patterns in the wolf (Canis lupis)
Z. Ozudogru, D. Ozdemir
Vet Med - Czech, 2005, 50(9):411-414 | DOI: 10.17221/5641-VETMED
Study of the intrarenal arterial pattern of kidney by a corrosion cast method was carried out on 10 kidneys of wolves. The left renal artery was longer than the right one. The renal arteries divided into two dorsal and one ventral branches. The dorsal branches were longer and thinner than the ventral one. Both dorsal and ventral branches gave off the interlobar, arcuate and interlobular arteries, respectively. The right dorsal branch gave off 5-7 segmental arteries, the right ventral branch 4-5 segmental arteries, the left dorsal branch 6-9 segmental arteries and the left ventral branch 7-8 segmental arteries. No anastomoses were observed between the...
New probiotic strain Lactobacillus fermentum AD1 and its effect in Japanese quail
V. Strompfova, M. Marcinakova, S. Gancarcikova, Z. Jonecova, L. Scirankova, P. Guba, J. Koscova, K. Boldizarova, A. Laukova
Vet Med - Czech, 2005, 50(9):415-420 | DOI: 10.17221/5642-VETMED
Probiotics have been used with increasing frequency in nutrition and for prophylactic purposes during the last years. In the present study we investigated the effect of Lactobacillus fermentum AD1 - canine isolate on selected intestinal microbial groups, weight gain, organic acids, haematology, glutathione peroxidase and phagocytosis of leucocytes in 2-days-old Japanese quail (Coturnix coturnix japonica). The results demonstrated that the 4-day application of this strain significantly increased the population of lactic acid bacteria - lactobacilli and enterococci in faeces (P < 0.01 and/or P < 0.001) and caecum...
Haematology and plasma chemistry of Bornean river turtles suffering from shell necrosis and haemogregarine parasites
Z. Knotkova, S. Mazanek, M. Hovorka, M. Sloboda, Z. Knotek
Vet Med - Czech, 2005, 50(9):421-426 | DOI: 10.17221/5643-VETMED
Nine Bornean river turtles (Orlitia borneensis, Gray, 1873) suffering from lethargy, ulcerations and caseous necrosis of the plastron were evaluated for haematology and plasma chemistry. Intra-erythrocytic haemogregarine parasites were associated with anaemia, low haemoglobin, basophilia, eosinophilia, heterophilia and azurophilia. After eight months of treatment consisting of antibiotics, debridement and scrubbing of lesions with enilconazole or povidone iodine, rehydration, deworming and tube feeding, lymphocytes, basophils, eosinophils, heterophils and azurophils returned to the normal ranges. Haematocrit, RBC and haemoglobin concentration...