KFPS wants more variety in stallions for the selection process

Fantastic call from the KFPS Breeding Council on Tuesday. It expressly requires breeders and owners to register the children of stallions, without those approved for the selection of the stallion. She also stated that she wanted to approve more stallions. In the closed Friesian book lie hereditary defects, health problems, reduced fertility and durability due to an increased proportion of cross-linking.

In an extensive article on the problem of inbreeding in the Friesian horse, Horses.nl noted at the beginning of 2021: “If you do not look at horse stallions individually, but take into account the families of stallions, the pedigree will be absolutely correct. Skew … shows a rough estimate that this is how the “23 stallions of the stallions, of four “families of stallions,” currently produce half of all Friesian ponies.” These are the stallions Tsjalle 454, Norbert 444, Pier 448, Alwin 469, and their children and grandchildren.

a call

Last spring, the Breeding Council promised members of the Friesian Horse Book that they would come up with steps that would contribute to greater long-term sustainability, health and genetic diversity within the breed. Phryso.com now states: “To register stallions (2.5 to 5 years old) for first viewing, KFPS invites stallion owners and owners to also register stallions that can contribute to blood distribution in the population. The goal is to approve more diversity in Stallions in order to give first impetus to a wider genetic group. This relates to both lower related stallions and stallions of less common breeding. In the most ideal scenario, each stallion from the Horse Book produces at least one offspring to ensure greater diversity and prevalence in our group.”

genetic basis

The Genealogical Book Commentary discusses the significant influence of the mentioned four stallion families: “It seems that a number of sons – and their sons and grandsons – have become increasingly influential in recent years. It is a trend that has been visible for some time, but is beginning to emerge, especially in recent years. So there is a risk that that the population will shrink in terms of genetic diversity in the coming years and that the increase in inbreeding will increase faster than desired.Dr. Bart Dukro of Wageningen-UR confirms this as well.(…) Dukro and the Board of Education see sufficient scope within the population current to ensure a sufficiently broad genetic basis for breeding.” In addition, the Genealogy Book makes it clear in the last sentence of the letter that he wants to approve more Genealogical stallions in the coming years. Recently, this number has ranged from two to six stallions per year. Many geneticists would like to see more options and for maximum breeding limits to be lowered (per year or as a total for life) to prevent individual stallions from significantly affecting the relatively young population.

Good enough

According to the letter, “The Stallion Selection Committee would like to see the offspring of as many parent animals as possible participate in the first viewing.” It is then clear that young stallions must meet all the usual requirements: “Registered stallions must go through the regular stall selection process. This means that not only do they have to be Sterworthy, but they also have to meet all other (veterinary) requirements in order to be able to Eventually from getting assigned to the central search.” At the bottom of the letter is a list of 48 stallions that do not have adopted sons yet. This includes a number of stallions that have covered very little or live offshore, but also many horses such as the lower related Epke 474 and Omer 493 and other well-known stallions such as the Meinte 490, Maurus 441, Markus 491, Uldrik 457 and Michelle 442.

Other measures

Earlier this year, the Breeding Council already launched a survey among owners of low-related mares to find out how to encourage the use of these valuable animals in breeding. A (limited) penalty scheme on risk pairs has also been adopted by the union. There is much debate about other measures to better ensure the genetic diversity of the breed. In the meantime, scientific studies are also being conducted on the genetic defects of the connective tissue, from which more information is expected soon.

Read here a list of stallions book horses wanted children

A long read on the problem of inbreeding in the Friesian breed:

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