A progeny test compares the performance of sires through their offspring. This is done by using sires over many cows and ewes, across many farms, then measuring the performance of their calves and lambs. By using key linking sires across a range of farms and environments, we can benchmark bulls and rams for any farm in New Zealand.

B+LNZ Genetics oversees two progeny tests. The Sheep Progeny Test is a long-standing and critical component of New Zealand’s sheep genetics system. The Beef Progeny Test was launched in 2014, while a Dairy-Beef Progeny Test was launched the following year. The two tests have since been combined. 

Sheep Progeny Test The benchmarking carried out within the Sheep Progeny Test underpins New Zealand’s large-scale across-flock breed evaluation, NZGE. This ensures rams’ breeding values and therefore future performance are as accurate as possible. View Beef Progeny Test This test compares a mix of New Zealand and international beef bulls under large-scale commercial farming conditions. It also aims to identify beef genetics suitable for use in the dairy industry – genetics that would benefit both dairy and beef farmers. View