QGI undertakes all necessary testing of all their bulls to ensure their product is eligible for global distribution.
A progeny test is a method used in cattle breeding to evaluate the genetic qualities and performance of a particular bull's offspring, or progeny. Specifically tailored to Wagyu cattle, which are known for their high-quality beef, this test helps determine the bull's ability to pass on desirable traits to its offspring, such as:
All sires selected by QGI are undergoing a structured progeny test program run across all four of the director’s nucleus herds. This involves using straws from their bulls in parallel with a known high-performance sire. They will be used across a single herd and the progeny will be tracked all the way through to detailed carcase analysis.
The progeny tests programs include a special focus on contemporary group structure, objective carcase image data and the use of highly accurate and well-known industry benchmark sires.
The following tests have been completed on all bulls:
IARS Disorder results in a high frequency of death in affected calves within the last few weeks of gestation or first few days of life. DNA testing can now be performed for Japanese Black Wagyu through the Australian Wagyu Association to enable management of the IARS genetic condition.
Spherocystosis (B3) is a genetic disorder that causes abnormal red blood cell shape(s), which can lead to anemia, jaundice, and decreased performance. Identifying carriers through genetic testing is vital to prevent its transmission and maintain herd health and productivity.
Chediak-Higashi Syndrome is a rare genetic disorder that affects their immune system and overall health. It leads to recurrent infections, bleeding disorders, and poor growth. Identifying carriers through genetic testing is essential to prevent its spread within the herd and maintain cattle health.
Claudin 16 Deficiency (CL16) is a hereditary disorder affecting Wagyu bulls. It results in kidney dysfunction, causing excess loss of valuable nutrients like calcium and magnesium in urine, leading to poor growth and health. Genetic testing helps identify carriers, allowing breeders to manage and prevent its transmission within the herd.
Factor XI deficiency (F11) is a genetic disorder that impairs blood clotting. Affected bulls may experience prolonged bleeding after injury or surgery. Genetic testing identifies carriers, enabling breeders to make informed mating decisions and reduce the risk of passing on this bleeding disorder within the herd.
Factor XIII (F13) deficiency is a rare genetic disorder that affects blood clotting. Bulls with this condition may experience excessive bleeding following injury or surgery. Genetic testing helps identify carriers, allowing breeders to make informed breeding choices and prevent the spread of this bleeding disorder within the Wagyu cattle population.
The Stearoyl CoA Desaturase (SCD) Fat Test is a genetic assessment for Wagyu bulls. It examines the SCD gene associated with marbling fat deposition in beef cattle. Identifying favorable SCD variants helps breeders select bulls that can pass on enhanced marbling traits, improving meat quality in Wagyu cattle.
The Neogen Ingenity Tenderness DNA Test is used to assess the genetic predisposition for meat tenderness. It analyzes specific genes associated with tenderness, helping breeders select bulls that are more likely to produce offspring with tender meat, a highly sought-after trait in the Wagyu cattle industry.
