Moderators: C_arola, Coby, Nicole288, Dyonne
DubbelDun schreef:In Amerika fokt men net zo massaal hoor en er wordt nog zat geïmporteerd.
Het probleem is dat het stamboek teveel hangt aan de eigen onderzoeksplicht en dat alles geregistreerd blijft worden, dus wordt er mee door gefokt.
Citaat:205. Genetic Defects and Undesirable Traits
In accordance with its Mission Statement and Welfare Policy Statement, AQHA endeavors to educate its membership and protect the welfare and integrity of the breed. Part of such endeavor includes AQHA’s efforts associated with the research, identification and promulgation of rules and regulations concerning genetic defects and undesirable traits through AQHA’s governance process. In that regard, researchers have noted that the American Quarter Horse does not have more genetic diseases than other equine breeds, AQHA has just been proactive and taken the lead at identifying genetic diseases affecting the American Quarter Horse breed.
http://www.bringinglighttohypp.org/9-inherited-equine-health/24-bringing-light-to-hypp-the-acceptable-diseaseCitaat:How many horses have to suffer and die, to make breeders and the registries realize that something needs to be done about N/H as well as H/H?
HYPP was identified in 1985, and a test was made available for public use in 1992. At that time breeders were encouraged by vets and vet schools to test their breeding stock and choose horses who did not carry HYPP to be used as breeding stock.
New research shows that not only has the test not been used to cull the disease from the equine industry, but the number of homozygous (H/H) and heterozygous (N/H) carriers have increased!
Samples submitted by Quarter Horse owners for HYPP testing in 1992-1996 showed that 1.1% were H/H (homozygous), while 35% were N/H (heterozygous).
Testing in 2005 indicated that 2.2% of horses tested were H/H genotype, and 37% were N/H. Keep in mind that these numbers are indications only of the ones actually tested.