SciELO - Scientific Electronic Library Online

vol.32 issue2Genetic and environmental relationships among milk yield, persistency of milk yield, somatic cell count and calving interval in Holstein cowsGenetic parameters for milk yield and lactation persistency in the three first parities of Iranian Holstein cows author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Revista Colombiana de Ciencias Pecuarias

Print version ISSN 0120-0690
On-line version ISSN 2256-2958


ORTIZ VEGA, Wilder Hernando et al. Genetic diversity in oocyte donors used in in vitro bovine embryo production programs in Brazil. Rev Colom Cienc Pecua [online]. 2019, vol.32, n.2, pp.90-99. ISSN 0120-0690.


Current reproductive management of bovine elite populations involves the use of assisted reproductive technologies (ARTs), aiming to obtain the greatest genetic gain. However, inadequate use of ARTs may lead to loss of genetic diversity in the offspring.


To assess the genetic diversity in elite female cattle populations used in commercial in vitro embryo production.


Using genetic and ecological approaches for the study of populations based on microsatellite markers, we assessed the genetic diversity between and within populations of cows used in commercial in vitro embryo production programs in Brazil.


Endogamy within populations varied from zero to 9.1%, while heterozygosity between populations (FST) was <0.05 in the different population interactions. AMOVA showed 1% variation between populations, 8% between individuals and 91% within individuals. The dimensionality reduction method utilized indicated a lack of structure in the populations analyzed, identifying two main clusters in the three populations.


Low genetic diversity between cow populations associated with commercial programs of in vitro embryo production in Brazil was evidenced. Variable levels of endogamy within the populations were observed. Approaches of population genetics as well as ecological diversity can be implemented to more thoroughly estimate genetic diversity in livestock populations.

Keywords : allele frequencies; heterozygosity; inbreeding; microsatellite markers; oocyte.

        · abstract in Spanish | Portuguese     · text in English     · English ( pdf )