The Isa Beefmasters Bull Performance Test
The Isa Beefmasters Performance Test and Sale is one of the largest in the Beefmaster industry and unique in many ways. The bulls offered each year represent the top end of all calves weaned. Not a single bull has been topped off! You can buy the absolute best we know how to produce. This is the 64 th group
which to buy. Be sure to look at the bulls from the bottom up. All the data in the catalog is gathered by Isa Beefmasters, and each set of measurements is taken in a one-day period. This enables all the bulls to have an equal chance to show their potential. We believe that the grass and feed gains, weight-per-day-of-age,
of bulls that have been tested in this format. The data we provide, combined with careful appraisal, has proven to be an extremely accurate way to select perfor- mance-packed bulls in all price ranges. At weaning, the bulls are brought together from the various ranches and spend the first twelve months of the Isa Performance Test under range conditions, growing the frame and developing athleticism so critical to the bull’s performance in difficult environments. You can see how they performed during this phase in the Grass ADG data. We then finish with a 50-day Gain Test on a low-energy ration, which is scientifically designed to show genetic differences in gainability without getting the bulls fat or soft. Our customers from all parts of the world will tell you that these bulls hold up when you get them home. We feel our sale format is the most user-friendly in the industry. We sell two age groups, coming-twos and two-year-old bulls, in roughly descending order of quality. The bulls are penned and cataloged in sale order, which means that the buyer can target the area of the sale corresponding to their budget without jumping from page to page in the catalog. We handpick the first 40 bulls as suitable for use in registered herds. As the sale progresses, the price goes down, which means a volume buyer can “average down” during the event. The bulls are excellent quality throughout the sale, so you only have to mark off those that do not suit your needs, and then let your target average price determine which bulls you buy. The biggest mistake buyers make is not starting to buy early in the sale and not selecting enough bulls from
carcass sonogram and scrotal measurements within each peer group are key. We have paid for over 20,000 carcass scans. We believe that the age of the dam is very important and is basic to our selection process. An outstanding son of a 2- or 3-year-old dam shows exceptional potential. Every cow in our herd has a calf every single year from the time she turns two, so the outstanding son of an older cow carries longevity in his genes, one of the most important economic traits. We have made a heavy investment in DNA testing to both establish pedigrees, but also to increase the accuracy of our EPDs through Genomically Enhanced EPDs. This enables us to track the bull’s performance while still putting selection pressure on libido and fertility by using multiple sire breeding. Multiple-sire breeding and requiring heifers to calve at 24 months sets Lasater genetics apart from all other cattle families. All of the bulls have a complete health background, are Trich and fertility-tested and ready for service. And they are backed by the Isa guarantee; while others say their bulls are guaranteed, we back it up. The proof of the validity of the Isa Beefmasters Performance Test lies in the great semen bulls that have come out of this program: L Bar 5502, L Bar 0324, Automatic, Essential, En Fuego, Escalade, Habanero, Momentum, Resource and L Bar 4519. We are very proud to sell top quality, tough, well grown-out bulls in a user-friendly environment to professional cattlemen. Thank you for being here!
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