Czech Journal of Animal Science, 2010 (vol. 55), issue 1
Interaction of selected production indicators of the economics of pork production
M. Šprysl, J. Čítek, R. Stupka
Czech J. Anim. Sci., 2010, 55(1):1-10 | DOI: 10.17221/1705-CJAS 
Estimates of the effects influencing the economics of pig production are of primary importance for breeders. For this purpose, costs, revenues and profitability were determined on the basis of individual parameters of the efficiency of tested pigs and of average commodity prices. The calculation was the result of the efficiency of actual animals and of the average and simulated prices of inputs received by producers in large-scale production operations. 136 animals, 64 of crossbred combinations (LWs × D) × (LWD × L) and 72 of PN × (LWD × L) were used. The total cost of 1 pig represented the costs per weaned piglet, feed and other...
The analysis of relationships between chemical composition, physical, technological and health indicators and freezing point in raw cow milk
O. Hanuš, J. Frelich, M. Tomáška, M. Vyletělová, V. Genčurová, J. Kučera, J. Třináctý
Czech J. Anim. Sci., 2010, 55(1):11-29 | DOI: 10.17221/1708-CJAS
The milk freezing point (MFP) is used for the control of milk food chain quality especially for possible adulteration with water. A crucial issue is the acceptance of the legislative discrimination limit (RLDL) of MFP for standard quality. The aim was to explain the relations between MFP and spectrum of milk indicators (MI) and possible impacts of MFP on technological milk properties. 76 bulk milk samples (BMS) from Holstein (1, n = 36) and Czech Fleckvieh (2, n = 40) cattle were analyzed for 48 MIs. The dairy cows were relatively healthy as for the occurrence of production disorders. BMSs were taken from February to June. Extraneous...
Genetic parameter estimates for birth and weaning weights in Raeini goats
M. Gholizadeh, G. Rahimi Mianji, M. Hashemi, H. Hafezian
Czech J. Anim. Sci., 2010, 55(1):30-36 | DOI: 10.17221/1703-CJAS
The aim of the present study was to estimate variance components and genetic parameters for birth and weaning weights in Raeini goats. The data were collected from the Breeding Centre of Raeini (BCR) cashmere goats in Kerman province of Iran from 1986 to 2008. Random effects included direct and maternal additive genetic effects, maternal permanent environmental effects with direct-maternal genetic covariance and random residual effects. Variance and covariance components and genetic parameters were estimated using the DFREML program by fitting six single-trait animal models. Depending on the model, hd2 varied from 0.057 to 0.323...
A novel porcine gene, USP7, differentially expressed in the musculus longissimus from Wujin and Large White pigs
Liu Yongganmg, Gao Shizheng
Czech J. Anim. Sci., 2010, 55(1):37-41 | DOI: 10.17221/1709-CJAS
The mRNA differential display technique was performed to investigate differences in the gene expression in the musculus longissimus from Wujin and Large White pigs. A fragment of one differentially expressed gene was isolated and sequenced. A complete cDNA sequence was obtained using the rapid amplification of cDNA ends (RACE) method. The sequence prediction analysis revealed that the open reading frame of this gene encodes a protein of 1 103 amino acids, which is homologous with the ubiquitin specific peptidase 7 (USP7) of four species, rat (identity 98%), human (98%), mouse (98%) and chicken (95%), so it can be defined as the porcine...
Effect of preventive application of Enterococcus faecium EF55 on intestinal mucosa during salmonellosis in chickens
R. Herich, T. Kokinčáková, A. Lauková, M. Levkutová
Czech J. Anim. Sci., 2010, 55(1):42-47 | DOI: 10.17221/19/2009-CJAS
In the present study the effect of preventive application of Enterococcus faecium EF 55 on the intestinal mucosa was evaluated in experimentally infected chickens with Salmonella enterica subsp. Enteritidis. A total of 120, one-day-old Salmonella-free chickens of Isa Brown hybrid were divided into 4 groups. The chickens in groups E and ES were perorally inoculated with E. faecium EF55 in a dose of 1 × 109 CFU/ml for 7 consecutive days. Placebo was applied to birds in control group C and group S during the first 7 days of life. At the age of 8 days chickens in groups ES and S were perorally infected with S. enterica...