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1

Regenerace ceske cervinky - masna uzitkovost krizencu F1 generace

100%
Rehout V., Citek J., Kosvanec K.
Zeszyty Naukowe. Przegląd Hodowlany
|
1999
|
tom 40
2

Obstetrical problems and stillbirth in beef cattle

100%
Citek J., Hradecka E., Rehout V., Hanusova L.
Animal Science Papers and Reports
|
2011
|
tom 29
|
nr 2
Out of 5970 calvings, 4.29% had an abnormal course (dystocia). The occurrence of stillbirths was 6.98% of all births and 4.15% of normal course births. Stillbirths occurred in 70.31% of dystocias. The highest frequency of stillbirths was in Blonde d´Aquitaine (8.59%) and the lowest in Gasconne (3.96%) cows. A narrow pelvis and an oversized foetus were the causes of more than 50% cases of dystocia. In Charolaise, an extremely high occurrence of oversized foetus, while in Blonde d´Aquitaine uterine inertia were found. A narrow pelvis was especially frequent as the cause of dystocia in the Aberdeen Angus and Limousine breeds. On analysis of stillbirths the most important effect was of the calving course with 24.47% impact on variability. Difficult calving increased the odds of stillbirth by 76 compared to normal calving. The heritability of stillbirth was estimated as 7.80%. It is recommended to restrict the use of sires with a higher incidence of dystocia or stillbirth in the offspring. As genetically determined variability is very low, other systematic measures are necessary to control stillbirth and dystocia. These are: supervision of the herd, obstetrical assistance, appropriate heifer rearing, mating cows at the proper live weight and proper nutrition during the pregnancy.
3

Peri-natal mortality in the Czech population of dairy cattle

100%
Hradecka E., Citek J., Rehout V.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
4

Microsatellite R03 in PRNP gene as a marker of BSE in cattle

100%
Pubalova M., Rehout V., Citek J., Blahova B.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
5
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Comparison of growth hormone and kappa-casein gene polymorphism in Polish Red and German Red cattle breeds

100%
Citek J., Filistowicz A., Rehout V., Neubauerova V.
Journal of Applied Genetics
|
2000
|
tom 41
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nr 3
6

Evaluation of reproductive parameters in the Czech population of dairy cattle

100%
Hradecka E., Rehout V., Citek J.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
7

An estimation of the genetic distance between Polish Red and other Red Cattle breeds on the basis of selected milk protein loci

88%
Zaton-Dobrowolska M., Citek J., Filistowicz A., Rehout V., Szulc T.
Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
|
2006
|
tom 09
|
nr 2
The material for the study were six populations of Red Cattle, including three samples of the Polish Red cattle population (PC’69, n = 203, PC’82, n = 261 and PC’96, n = 313) and one each of the Danish Red (DC, n = 169), German Red (NC, n = 510) and Czech Red (CC, n = 14). DNA was isolated from blood, according to the method by Gemmell and Akiyama (1996). All individuals were genotyping for the following proteins: a S1-casein, b-casein, k-casein and b-lactoglobulin. The frequency of alleles was estimate and was used for the estimation of the genetic distance between populations. Using the PHYLIP ver. 3.5c software the genetic distance was determined according to 1) Nei, 2) Cavali-Sforza and 3) Reynolds. All the populations demonstrated a similar distribution of allele frequencies at individual loci. Only the Czech Red showed different tendencies as regards b- and k-casein and b -lactoglobulin. This may have been the effect of the smaller population size as compared to the remaining breeds. Genetic distances estimated by these three using methods were similar. The smallest genetic distance was observed between populations PC’96 and NC (0.0007). In turn, the highest value was obtained between population DC and CC (0.0776). In the case of the genetic distance calculated according to the formulas by Cavalli-Sforza and Reynolds, the values obtained were higher then value of genetic distance estimated by Nei. The comparatively low values for the genetic distance obtained in the present studies may indicate that the breeds analysed originate from a common ancestor or lived on neighbouring geographical regions, what could lead to a frequent exchange of genes. The considerable similarity between those breeds could also be caused by a similarly conducted selection, based on similar assumptions (similar type of production). Those populations demonstrate similar gene pools what may be used for common preserve breeding programmes, which would decrease the danger of inbreeding. An analysis of the data collected over 30 years for the three populations of the Polish Red cattle, renders it possible to conclude that the frequency of individual alleles of the proteins examined are subjected to a small but continuous change.
8

Genetic distance between the Polish Red, Czech Red and German Red cattle estimated based on selected loci of protein coding genes and DNA microsatellite sequences

88%
Zaton-Dobrowolska M., Citek J., Filistowicz A., Rehout V., Szulc T.
Animal Science Papers and Reports
|
2007
|
tom 25
|
nr 1
The investigations covered the representatives of three red cattle breeds: Polish Red (PR, n = 65),Czech Red (CR, n = 54) and German Red (GR, n = 28). The allele frequency was analysed for five protein genes: CSN3, LGB, GH, PRL and Pit-1 as well as 13 microsatellite sequences. In the populations of PR and GR cattle the frequencies of protein loci were similar, with a clearly marked domination of one allele. Only in the CR cattle, allele frequencies were similar for all the protein loci analysed (with the exception of Pit-1) with no clear dominance of any one allele. Out of the 13 microsatellite sequences analysed six showed a similar distribution of the allele frequencies in all three breeds, while the remaining ones were characterized by a wide variation. On the basis of the results obtained the genetic distance was estimated between breeds. The smallest genetic distance was observed between the PR and GR population. In turn, between the PR and CR as well as CR and GR populations, the genetic distance proved to be similar, the most similar being obtained on the basis of Nei method.
9

The polymorphism of prion protein gene in contemporaries of BSE-positive cows

88%
Rehout V., Citek J., Dvorak J., Pubalova M., Blahova B.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
10

Genetic variation of milk proteins in cattle maintained as gene reserve

88%
Blahova B., Rehout V., Kubek A., Citek J., Pubalova M.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
11

The DGAT1 polymorphism and breeding value of Holstein sires

88%
Citek J., Panicke L., Rehout V., Blahova B., Pavkova J.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
12

Report on restitution and breeding of Czech Red cattle in the Czech Republic

88%
Rehout V., Kosvanec K., Citek J., Filistowicz A., Hradecka E.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
13

Prediction of pork belly composition using the computer vision method on transverse cross-sections

76%
Citek J., Stupka R., Okrouhla M., Vehovsky K., Stadnik L., Nemeckova D., Sprysl M.
Annals of Animal Science
|
2015
|
tom 15
|
nr 4
14

Screening genetic disorder in cattle

76%
Citek J., Rehout V., Pavkova J., Blahova B., Hala K., Strapak P.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
15

The yield and cell viability of bovine in vivo recovered embryos in relation to season of flushing

64%
Stadnik L., Makarevich A. V., Dolezalova M., Kubovicova E., Beran J., Hegedusova Z., Citek J., Holasek R., Stupka R.
Journal of Animal and Feed Sciences
|
2014
|
tom 23
|
nr 4
The objective of this study was to evaluate effect of the season on the yield and viability of embryos recovered from superovulated and flushed Holstein cows (n = 56). The embryo recovery rate (ERR, %) was determined as the proportion of totally flushed embryos (TFE, n) to the number of corpora lutea detected. The embryos were evaluated as transferable (TRANS) or non-transferable and analysed for occurrence of apoptotic cells (T+, TUNELindex) as well as actin cytoskeleton quality (ACG). TFE and ERR were the highest during spring vs summer (149 embryos, 59.6% vs 20 embryos, 37%; P < 0.001), while they insignificantly differed in autumn (57 embryos, 48.3%). The autumn embryos presented a higher proportion of TRANS (P < 0.05, +10.56% vs spring; +18.94% vs summer). The occurrence of apoptosis in these embryos was lower (–1.38 T+ cells and –1.75% T-index; P < 0.05) and the percentage of the best ACG was higher (+35%; P < 0.05). These findings identified autumn as the best season for collection of high-quality bovine embryos.
16

The influence of genetically modified Bt maize MON 810 in feed mixtures on slaughter, haematological and biochemical indices of broiler chickens

64%
Rehout V., Kadlec J., Citek J., Hradecka E., Hanusova L., Hosnedlova B., Hosnedlova B., Lad F.
Journal of Animal and Feed Sciences
|
2009
|
tom 18
|
nr 3
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