Veterinární medicína, 2003 (vol. 48), issue 7
Influence of the diet on the morphology of ruminal and intestinal mucosa and on intestinal carbohydrase levels in cattle
R. Zitnan, S. Kuhla, K. Nürnberg, U. Schönhusen, Z. Ceresnakova, A. Sommer, M. Baran, G. Greserova, J. Voigt
Vet Med - Czech, 2003, 48(7):177-182 | DOI: 10.17221/5767-VETMED 
This study examined the effects of extensive and intensive feeding on the morphology of the gastrointestinal tract as well as on the level of carbohydrase activity in the small intestine of growing cattle. Fourteen growing male bulls aged 5 months were divided into two feeding groups. The extensively fed animals were kept on pasture in the summer and in a stall in the winter whereas the intensively fed group was housed all the year long. The bulls were slaughtered 16 h after the last feeding at the age of 18 months. Rumen fluid samples and mucosa samples from the ventral ruminal sac and the intestinal tract (duodenum, jejunum, ileum) were subjected...
Veterinary meat inspection of bovine carcasses in the Czech Republic during the period of 1995-2002
V. Vecerek, A. Kozak, M. Malena, B. Tremlova, P. Chloupek
Vet Med - Czech, 2003, 48(7):183-189 | DOI: 10.17221/5768-VETMED
The results of veterinary meat inspection classification of 4 000 372 bovine carcasses reflect long-term aspects of health status in cattle herds and the quality of transport and handling of animals at slaughterhouses. Veterinary inspectors recorded the data obtained from meat inspection classification of bovine carcasses at slaughterhouses in the CzechRepublicduring the period of 1995-2002 together with the reasons for classification. The trends were evaluated by a comparison of two periods (Period I, 1995-1998, and Period II, 1999-2002) by means of calculating the indexes of values from Period II compared to those of Period I. Bovine carcasses classified...
Is there any function for colicinogeny in the post-weaning diarrhoea of piglets?
J. Trcka, J. Smarda
Vet Med - Czech, 2003, 48(7):190-198 | DOI: 10.17221/5769-VETMED
Using seven experimental approaches, we attempted to solve the question of possible participation of colicinogeny and colicin-sensitivity in the pathology of the post-weaning diarrhoeic enteritis of piglets. In our research, both enterotoxic E. coli strains (ETEC) and normal, commensal E. coli strains in the intestinal microflora of 803 weaned piglets were followed. In diarrhoeic piglets, colicinogeny was more frequent in the ETEC strains than in the simultaneously isolated commensal ones. ETEC strains were largely insensitive to the most frequently appearing colicin types and the inhibitive effect of their colicins on commensal E....
Retention of cadmium in the tissues of broiler chicks by dietary supplemental microbial phytase
T. Bilal, E. Erçag
Vet Med - Czech, 2003, 48(7):199-205 | DOI: 10.17221/5770-VETMED
The objective of this study was to investigate the effect of Ca : total(t) P ratio, vitamin C and microbial phytase on broiler performance and cadmium retention of broiler. In experiment, 288 day-old male broiler chicks (Cobb) were randomly assigned to 12 treatment groups, 3 replicates of 8 chicks each. The study was carried out for 42 days. The basal diet supplemented calcium, phosphorus, cadmium (0.5 and 5 mg/kg), zinc (20 mg/kg), vitamin C (0 and 1 g/kg) and microbial phytase (0 and 600 PU/kg feed). Differences among diets fed to individual experimental groups affect either body weight gain or feed intake and conversion after the 3 weeks and at...