| Autor: |
N. I. Abramova, O. L. Khromova, M. O. Selimyan |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Veterinariya, Zootekhniya i Biotekhnologiya. 1:29-35 |
| ISSN: |
2311-455X |
| DOI: |
10.36871/vet.zoo.bio.202102004 |
| Popis: |
The use of foreign-bred bulls leads to changes in the genetic structure of the black-and-white breed population, which affects the level of population characteristics. The study was conducted to study the comparative variability and heritability of productive and reproductive characteristics of daughters of sires of domestic and foreign selection in pedigree livestock 10 250 cows 1st calving modern population of black-motley breed of the Vologda region. The superiority of the offspring of foreign bulls in the average indicators of all the studied traits was established with confidence (P |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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