Key result
Boar GHBGHB genotype linked to ~14% greater ejaculate volume and higher live sperm counts.
Why the study?
The potential effect of Growth Hormone gene polymorphisms on reproductive performance traits of boars was unclear.
Observational (n=173)
Absolute Event Rate: 244.6% vs 215.5%
p-value: p=≤0.01
May inform genetic selection for boar semen production; leaves open validation across breeds and settings.
Relations between polymorphism of the Growth Hormone gene and semen characters were analyzed. The DNA for the purpose of examination was isolated from the peripheral blood of 173 boars. In the boar herd under study the frequency of allele occurrence for the GH/Msp I was as follows: allele GH A - 0.79 and allele GH B - 0.21. As far as the GH/Hae II polymorphism is concerned, the relevant frequency was as follows: allele GH A - 0.53 and allele GH B - 0.47, respectively. The relationship between the GH genotypes and semen characteristic traits were analyzed. The study showed that boars with GH B GH B genotype of both polymorphous loci of the GH gene produced ejaculates of larger volume, higher percentage, number of normozosperms in the ejaculate and number of insemination as compared to GH A GH A and GH A GH B boars. Our current findings suggested that polymorphism of the GH/Msp I and GH/Hae II might have potential effect for reproductive performance traits of boars.
No takes yet. Share an insight, caveat, or question.
Kmieć et al. (2007) conducted an observational in Semen parameters in boars (n=173). GH gene polymorphism (GHBGHB genotype) vs. GHAGHA and GHAGHB genotypes was evaluated on Ejaculate volume (GH/MspI) (p=≤0.01). Boars with the GHBGHB genotype of the GH gene produced ejaculates of significantly larger volume (244.6 cm3 vs 215.5 cm3) and higher live sperm counts compared to GHAGHA and GHAGHB boars.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: