Czech Journal of Animal Science, 2005 (vol. 50), issue 8
Effect of potential probiotic Enterococcus faecium strains on selected microflora in turkeys
M. Marciňáková, V. Strompfová, K. Boldižárová, M. Simonová, A. Lauková, P. Naď
Czech J. Anim. Sci., 2005, 50(8):341-346 | DOI: 10.17221/4175-CJAS 
A group of twenty-six turkeys at the age of seven weeks was divided into four groups (7 birds in three groups 5 in control). The first group of turkeys was used as the control group. The other three groups were inoculated for 7 days with the following bacteria: Enterococcus faecium EE3 strain (2.1 × 109 cfu/ml), E. faecium EK13 strain (1.76 × 1010 cfu/ml) and E. faecium EF55 strain (5 × 108 cfu/ml). Sampling of faeces from each turkey was done at the beginning of experiment (at day 0) and in 7 days from the strain application. The total counts of EE3 strain in faeces of turkeys in...
Multiphasic growth models for cattle
H. Nešetřilová
Czech J. Anim. Sci., 2005, 50(8):347-354 | DOI: 10.17221/4176-CJAS
There are several ways of generalizing classical growth models to describe the complex nature of animal growth. One possibility is to construct a model based on a sum of several classical growth functions. In this paper, such multiphasic growth models for breeding bulls of the Czech Pied cattle based on the sum of two logistic functions are studied. The logistic function was chosen as a base for the models due to the relatively low degree of nonlinearity for the growth data. The paper describes three steps of constructing such a multiphasic growth model: in the first step a model with four unknown parameters is considered, in the second step the number...
Effect of intensive fattening of bulls based on a high-grain diet on growth intensity and biochemical and acid-base parameters of blood
E. Štercová, V. Pažout, E. Straková, P. Suchý
Czech J. Anim. Sci., 2005, 50(8):355-361 | DOI: 10.17221/4177-CJAS
The present study deals with the use of high-grain diets with a low proportion of fodder for fattened cattle, and with the evaluation of their effect on the growth intensity and metabolic profile of the animals. Thirty Holstein × Czech Pied bulls were given diets containing from 86.69 to 88.54% concentrates based on crushed cereals in the period from 216th to 327th day of age. The growth intensity of bulls was high, with the average daily weight gain of 1.64 kg in the course of the whole experiment. When the average body weight of animals reached 343.67 kg and 450.93 kg, blood samples were taken from the vena jugularis...
Relationship between abdominal fat and methionine deficiency in broilers
S. Kiraz, T. Şengül
Czech J. Anim. Sci., 2005, 50(8):362-368 | DOI: 10.17221/4178-CJAS
A study was conducted to determine the relationship between abdominal fat and the intake of methionine deficient diet in broilers. In this study, 66 male broilers at the age of 35 days were used. They were divided into two groups (control, n = 13, and methionine deficient group, n = 53) and all birds were housed in individual pens. During the experiment, normal and deficient diet contained 0.55% and 0.25% methionine, respectively. Control group was fed normal diet for 19 days. Treatment group received methionine deficient diet for 4 days and normal diet for 15 days. Body weight and feed intake were recorded daily. High (HG) and low...
Concentrations of selected toxic elements (cadmium, lead, mercury and arsenic) in ewe milk in dependence on lactation stage
Z. Antunović, I. Bogut, D. Senčić, M. Katić, P. Mijić
Czech J. Anim. Sci., 2005, 50(8):369-375 | DOI: 10.17221/4179-CJAS
Biological investigations on ewes of Merinolandschaf breed (n = 10) were conducted by the 60th lactation day during the summer on pasture. Ewe milk sampling was carried out on the 2nd; 10th; 30th and 60th lactation day. An electrothermal technique was used to determine Cd and Pb concentrations in food and milk whereas As and Hg concentrations in food and milk were determined by a hydrid technique on an atomic absorption spectrophotometer. The investigation results indicate that concentrations of selected toxic elements in ewe milk varied in dependence on lactation stage. In colostrum (2nd...
The antimicrobial activity of honeys produced in theCzech Republic
L. Vorlová, R. Karpíšková, I. Chabinioková, K. Kalábová, Z. Brázdová
Czech J. Anim. Sci., 2005, 50(8):376-384 | DOI: 10.17221/4180-CJAS
The aim of this project was to determine the antimicrobial activity of honeys produced in the Czech Republic to some bacteria (Listeria monocytogenes, Staphylococcus aureus, Salmonella typhimurium and Escherichia coli). Another aim was to find out whether there are correlations between the antimicrobial activity of honeys and their physicochemical parameters. All honeys included in the study were directly obtained from beekeepers in Southern and Northern Moravia from the summer load of 2001. The project contains 20 honeys which were determined according to their conductivity as blossom (6), blends (10) and honeydew (4). The determination...