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Influence of two sources of information on the accuracy of fertility and hatchability proofs in laying hens was studied on a Rhode Island White-based maternal strain record. Five- or three-generation pedigree and including or not including the laying performance as correlated traits were varied to create four variants of analysis tested against the reference – five-generation, multiple-trait, and...
Based on the analysis of the cytb gene of mtDNA the taxonomic position was determined of two closely related Bovidae species: American bison (Bison bison) and European bison (Bison bonasus). Reference sequences were determined for both species. In the American bison two variants of cytb gene were identified. Both of them are novel sequences, so far not published in GenBank. For comparison the reference...
Selection, one of the more important stages in fur animal breeding, is based on the phenotype of the animals only. Although a phenotype-based evaluation is the quickest and the simplest method that can be carried out in an on-farm environment, the results of such an evaluation, however, remain reliable exclusively in relation to highly heritable traits. The material comprised data collected from the...
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