An Example for the 'Transit-Heterosis' in the Non-Return Rate of Upgraded Dairy Genotypes

Autor: Zsolt Nemes, Radica Đedović, Vitomir Vidović, Ferenc Eszes, András Gáspárdy
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Scientific Papers Animal Science and Biotechnologies, Vol 45, Iss 1, Pp 215-215 (2023)
Druh dokumentu: article
ISSN: 1841-9364
2344-4576
Popis: The research aim of the authors was to evaluate the success of the heterosis manifested in the non-return rate regarding an upgrading breeding system in Serbia. The data base contains altogether 27,241 records of the initial purebred Simmental and Holstein-Friesian cows as well as of the six intermediate Holstein-Frisian crossed genotypes, from the last four decades (1971-2008). In the non-return rate calculated by pp day 70 and 210 the Simmentals, together with the F1-R3 genotypes, regularly reached higher values than the purebred Holsteins, together with the R4-R5 genotypes, to a significant degree (p
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