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J Hájková

Publications and source records attributed to J Hájková.

8 recordsLinked to original sources

[Frequency view on genome changes testing].

Laboratories dealing with human genome, both inherited and acquired changes, dispose with similar methods and technology. The spectrum of genetic tests is relatively broad and the number of mutations or variants tested differs substantially. Also the number of examinations carried out in individual laboratories varies. Data presented in the tables come from the year 2004 and indicate the number of examinations requested and number of positive results. Many laboratories mentioned in the registry CZDDNAL (http://www.uhkt.cz/lab_a_vysetreni/nr lab_dna_diag/dna_lab_db) perform the same tests but there is also a great number of tests carried out by only one laboratory. Reasons of the request, cost-effectiveness and clinical utility of genetic testing is being discussed.

Gene Frequency↗

[Asymmetry of the digits in pigs as a hereditarily conditioned variation in the anatomic structure of the extremities].

As follows from the population statistical investigation performed within the management information system, defects of the anatomic structure of the feet occur in the pig population of all breeds and cross combinations kept in the Czech Socialist Republic: the frequency of this occurrence is relatively higher than 4.4% (1984) and 3.8% (1985) of all litters affected by some of the genetic defects. In some populations different degrees of claw asymmetry occur in more than 40% of the individuals. Environmental conditions contribute to the severity of the defect (technology, particularly the type of floor), but the disposition is genetically conditioned. Prevention should mainly be based on the negative selection of the carriers of the undesired disposition. Working on this study, we used the results of the population statistical processing of the reports on the hereditary defects of pigs and the results of our own observations. In the former case the data concerned 29,778 pig litters, in the latter case 7343 pigs of the Large White, Landrace, Duroc and Prestice Black-Pied breeds.

Animals↗