Association between FSHR polymorphism with productive and reproductive traits in Antioquia Holstein cattle

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dc.creatorStephania Madrid Gaviria
dc.creatorAlbeiro López Herrera
dc.creatorJosé Julián Echeverri Zuluaga
dc.date2016
dc.date.accessioned2026-07-07T03:30:30Z
dc.descriptionBecause FSH and its receptor play a fundamental role in reproduction, the objective of this research was determining the effect of the A-320T polymorphism in productive and reproductive traits in Antioquia Holstein cows. The PCR-RFLP was used to amplify a segment of 970 bp of the bovine follicle stimulating hormone receptor gene (FSHR) which was digested with the restriction enzyme TaqI. The effect of the FSHR genotypes on productive and reproductive traits was determinate by a Mixed Linear Model and Tukey Test was used to establish significant differences between means for the three genotypes. The effect of allelic substitution was studied through a linear regression model where the genotypes AA, AT and TT were transformed into a quantitative scale of 0, 1 and 2, respectively according to the number of possessed T alleles. In Antioquia Holstein cattle the most common genotype was the AT (0.485) followed by TT (0.417) and AA (0.096) genotypes. Allele frequencies were 0.339 for A and 0.660 for T, respectively. The FSHR genotypes did not exert a significant effect on the principal productive parameters, except for fat percentage (P<0.01) where the TT individuals presented the highest percent. Results showed that T allele seems to improve the solids in milk while A allele improves dairy yield. The reproductive parameters were not affected by this SNP but AT animals showed a higher number of services per conception. Further studies are required to determine whether this SNP may be used as a molecular marker.
dc.formatapplication/pdf
dc.identifier0304-2847
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179943371005
dc.identifierhttps://www.redalyc.org/journal/1799/179943371005/
dc.identifierhttps://www.redalyc.org/journal/1799/179943371005/html/
dc.identifierhttps://www.redalyc.org/journal/1799/179943371005/179943371005.epub
dc.identifierhttps://www.redalyc.org/journal/1799/179943371005/movil
dc.identifier.urihttp://hdl.handle.net/123456789/435815
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1799
dc.rightsRevista Facultad Nacional de Agronomía - Medellín
dc.sourceRevista Facultad Nacional de Agronomía - Medellín (Colombia) Num.1 Vol.69
dc.subjectAgrociencias
dc.titleAssociation between FSHR polymorphism with productive and reproductive traits in Antioquia Holstein cattle
dc.typeartículo científico

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Revista Facultad Nacional de Agronomía - Universidad Nacional de Colombia