IHFA leads in Irish genomics trend
Pedigree Holstein Friesian bulls registered with the Irish Holstein Friesian Association (IHFA) continue to be a rich genetic resource for Irish dairy farmers.
This is according to Helen O’Callaghan of the IHFA. Speaking to AgriLand, she said clear and significant genetic trends in its male population have emerged following the decision taken by the board last year to introduce genomic testing using SNP (single nucleotide polymorphism) technology.
“2,500 males were pedigree registered using the breakthrough DNA based technology during 2013. Of the males born last year who attained IHFA pedigree status 933 had an EBI over €200.”
O’Callaghan continued: “Indeed there are 41 bulls with an EBI over €300. The top bull had an EBI of €79 and has been purchased for AI. 1,421 Bulls had a Fertility Sub Index of greater than €100 and the highest Fertility Sub Index rating is €255.”
The IFHA noted a parallel trend also emerged from the population of classified (linear scored) cows.
“Within the 2013 registered bulls, bred from VG/EX dams and VG/EX Grand-Dams there are 105 bulls with an EBI over €200. Six bulls have an EBI greater than €300. To date, seven bulls have been coded for AI use by Irish AI stations.”
According to O’Callaghan, the SNP technology has developed with the evolution in genomic testing for cattle.
“The effect of the board decision means that all male animals receive genomic breeding values in addition to parentage validation from a single tissue sample. Commercial farmers buying stock bulls will gain added reliability and higher genetic merit when breeding the next generation in their herd,” she added.
