Veterinární medicína, 2012 (vol. 57), issue 10

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

O. Cengiz, B.H. Koksal, O. Tatli, O. Sevim, H. Avci, T. Epikmen, D. Beyaz, S. Buyukyoruk, M. Boyacioglu, A. Uner, A.G. Onol

Vet Med - Czech, 2012, 57(10):515-528 | DOI: 10.17221/6363-VETMED  

A trial was conducted to investigate the effects of a dietary organic acid blend for a period of 35 days on the growth performance, intestinal histomorphology and microflora of male broiler chicks with delayed access to feed. One hundred and ninety two one day old broiler chicks (ROSS 308) were randomly distributed into 4 groups housed in four replicate pens with 12 birds in each. A 2 × 2 factorial design was implemented. Four experimental groups were formed by two levels of dietary organic acid blend supplementation (Control and Fysal Dry®) and two periods of delayed feed access (0 and 36 h). At 36 h after hatching body weight and body...

Investigations into the lymphocyte phenotypes and the presence of rheumatoid factor and antinuclear antibody in the peripheral blood of 515 dogs

K. Tamura, N. Nagashima, H. Oda, M. Kunimi, T. Itoi, M. Yasukawa, T. Miyata, K. Terakado, H. Takemitsu

Vet Med - Czech, 2012, 57(10):529-535 | DOI: 10.17221/6364-VETMED  

The levels of rheumatoid factor (RF), antinuclear antibody (ANA), and composition of peripheral lymphocyte subsets in 515 dogs were examined. Of these sample cases, 33 cases were diagnosed as immune-mediated fever that presented with high C-reactive protein (CRP), 31 cases were diagnosed with Hansen's Type 1 disc herniation and the remaining 415 cases were clinically healthy dogs, and served as controls. In the cases diagnosed with immune-mediated fever, 84% of the dogs tested positive to either RF or ANA (RF positive 60.6%; ANA positive 24.2%). By contrast, 16.2% of the healthy dogs were positive for either RF or ANA (RF positive 14.9%; ANA 1.3%)....

Three combinations of clonidine in association with tiletamine-zolazepam for anaesthesia induction in rats: evaluation of reflexes and pain sensibility

G. Spinella, J.M. Vilar, C. Anastasi, A. Santana, U. Prati, L. Roveda, G. Ricciardi, D. Britti

Vet Med - Czech, 2012, 57(10):536-542 | DOI: 10.17221/6365-VETMED  

The aim of this study was to assess the combination of tiletamine-zolazepam (Zoletil 20®) with three different doses of clonidine for general anaesthesia induction in rats submitted to vascular microsurgery. The evaluation of anaesthetic and analgesic effects was performed in 30 Wistar rats randomly divided into three groups and induced with Zoletil 20 [90 mg/kg Intraperitoneal (IP)] associated with three different doses of clonidine (60-90-120 μg/kg IP). Four clinical parameters were evaluated after induction: loss of righting reflex, voluntary movement, the pedal withdrawal response, and pain sensitivity tested by pinching the tail....

The effect of memantine on behavioural sensitisation to methamphetamine in mice

L. Landa, K. Slais, A. Sulcova

Vet Med - Czech, 2012, 57(10):543-550 | DOI: 10.17221/6366-VETMED  

After repeated administration the psychostimulant methamphetamine (Met) produces a substantial increase in behavioural responses, which is termed behavioural sensitisation. Many studies have reported that N-methyl-d-aspartate (NMDA) receptors play an important role in the development and expression of behavioural sensitisation. Memantine (Mem) is used particularly for the treatment of Alzheimer's disease and acts as a non-competitive NMDA glutamate receptor antagonist, possessing a variety of psychotropic effects. For example, there are studies indicating that memantine prevents the expression of withdrawal symptoms in mice and causes reversal...

Parasite load of European brown hares in Austria and the Czech Republic

K. Chroust, M. Vodnansky, J. Pikula

Vet Med - Czech, 2012, 57(10):551-558 | DOI: 10.17221/6367-VETMED  

The parasite load of brown hares (Lepus europaeus) is of great interest to hunting ground managers and veterinarians. We compared the prevalence and intensity of parasitic infections in 362 hares from Austria and the Czech Republic with respect to age and body weight. Samples of the entire gastrointestinal tract, liver and lungs were collected during autumn hunting events in 2007. The parasite spectrum of hares included Protostrongylus pulmonalis, Graphidium strigosum, Trichostrongylus retortaeformis, Trichuris leporis, Eimeria spp. and tapeworms. The most prevalent gastrointestinal nematode was Trichostrongylus retortaeformis,...

Isolation, cloning and sequence analysis of lactate dehydrogenase gene from Theileria annulata may lead to design of new antitheilerial drugs

A. Erdemir, M. Aktas, N. Dumanli, D. Turgut-Balik

Vet Med - Czech, 2012, 57(10):559-567 | DOI: 10.17221/6368-VETMED  

Theileriosis is a serious animal disease that is transmitted by ticks. Theileria species are tick-borne obligate intracellular protozoan parasites that cause severe and mild infections in their hosts. Two of them, Theileria annulata and Theileria parva, cause lymphoproliferative disease with high mortality and morbidity in cattle commonly known as tropical theileriosis and East Coast fever, respectively. Currently available antiparasitic drugs are effective in animals but animals may remain carriers and treatment is most effective in the early stages of the disease. The isolation, cloning and analysis of lactate dehydrogenase...