With the average size of a Jersey cow being about 1,000 lbs., calving ease and birth weight had to be considered and tested. Trials began in 2010 with calving-ease Wulf Limousin bulls. In 2,600 calvings, 98.8% were unassisted and the average birth weight was 79.5 lbs. Early trials focused on Limousin bulls with a -2.5 birth weight (BW) EPD or lower; since then, trials have found the window can be opened to bulls with a +2.5 or lower BW EPD without encountering dystocia problems.

With confirmation that birth weight wasn’t an issue, the focus moved to the feeding stage, and how the Limousin x Jersey steers would stack up against the beef breeds. The first test group of Limousin x Jersey cattle (550 head) entered the backgrounding phase at 400 lbs., and the final feeding stage at 850 lbs. They were fed at one of Wulf’s feedyards for about 120 days.

Measurements for feed conversion, gain, USDA Quality Grade (QG) and USDA Yield Grade (YG) were taken. Carcass data from the first feed trials in 2012 exhibited a QG of 48% Choice or higher, and 92% YG 1s and 2s. The packer said just keep on bringing them, Wulf reports.

beef builder breed closeout data

Earlier this year, an additional group of 636 head was harvested at an average 1,352 lbs. live weight, yielding an average carcass weight of 852 lbs., and average dressing percentage of 62.74%. Quality grade was overwhelmingly Choice, with 66% achieving YG 1 or 2 and average ribeye area of 14.3 in (see chart).

As of May 2013, an additional 3,000 head were on feed, with another 5,000 head due to be born at Riverview in the nine months to follow. Wulf Cattle has named the Limousin x Jersey cross “Beef Builders.”

Breeding to FeedingSM program

The initial results of this unique beef x dairy program caught the eye of Genex Cooperative Inc., Shawano, WI, which has formed a partnership with Wulf Cattle called Breeding to FeedingSM. The program consists of homozygous black Limousin and Lim-Flex® sires that are trait leaders for calving ease, ribeye area, growth and marbling. The bulls are marketed directly to dairies by Genex employees.

“Many dairies have created selective breeding programs, then breed their best females to sexed semen for herd replacements, and the bottom end to beef semen for a more valuable terminal cross,” says Amy te Plate-Church, national alliance manager for Genex.

The Limousin genetics are targeted to the Jersey cows, and Wulf’s have added Lim-Flex bulls to target dairies with Holstein genetics. “Utilizing the Angus genetics in the Lim-Flex fits best with the larger-framed Holstein cow,” Wulf says.

“Breeding to Feeding is a win-win for both the dairy producer and Wulf Cattle,” says Adam Zeltwanger, who oversees Wulf Cattle’s dairy sales program. Zeltwanger’s role is to work with Genex to identify the location of calves that fit the program.

jerry wulf on limousin jersey cross

“Once the calves are born, dairies follow a calf-care protocol to enhance the health and performance that will impact the future ability of that calf to successfully gain and grow in the feedyard,” Zeltwanger says.

 

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Wulf Cattle manages the process from that point forward. The calf is purchased by Wulf Cattle from the dairy at a premium based on current Holstein bull calf market prices, which results in added income for the dairy. The calves are moved to a calf ranch; at 400 lbs., they go to a backgrounding yard. After an additional 450 lbs. of gain are added, the Beef Builder calves make their final move to the finishing stage at a Wulf Cattle feedlot in Nebraska or Minnesota.

Zeltwanger says this program offers great ease of mind to the dairy producers, because they know that calves not impacting their milking herd still have the ability to enhance their profitability.

“Successfully creating pull-through demand for our beef genetics depends on our ability to communicate with our customers and cooperatively make decisions to breed better beef,” Zeltwanger says. Genetics are selected to fit the system, fed to meet the industry needs, and match the demands by the packer. Creating the pull-through demand is what Wulf Cattle is striving for. 

B. Lynn Gordon, PhD, is a freelance writer based in Sioux Falls, SD.

 

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