Wintering calves headed to spring pastures | TSLN.com

Wintering calves headed to spring pastures

"Putting the right cattle into the right program greatly increases the chances of success," said Warren Rusche, SDSU Extension Beef Feedlot Management Associate. "Replacement heifers and calves that will spend next summer grazing as yearlings will be managed quite differently than calves going on either a fast-track backgrounding or calf-fed finishing program."

For replacement heifers and calves destined to spend summer 2017 grazing, Rusche said maximum performance is not the goal, but instead a balance between reducing overall wintering costs without compromising future productivity.

"Getting calves too fleshy during the winter results in reduced summer gains in yearlings and negative effects on lifetime productivity in replacement heifers," he explained.

Rusche added that cattle producers need to be careful not to reduce inputs too much, because this can result in lower pregnancy rates in replacement heifers and reduced marbling potential in growing cattle.

For best results, Rusche urges cattle producers to aim for performance targets between 1.5 and 2 pounds per day. "This should avoid negative outcomes in most cases," he said.

The right feeding program

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Frame size can help cattle producers decide what type of feeding program they should pursue.

A long-yearling program, Rusche explained allows the smaller-framed, lighter calves time to add frame before going on a finishing diet, resulting in increased hot carcass weights without negatively affecting marbling.

On the other hand, feeding larger framed, higher performing cattle diets that restrict their growth potential will depress marbling.

"A downside of feeding calves to gain at a relatively slow average daily gain (ADG) is that the total cost of gain-per-pound will almost always be more expensive compared to programs targeting greater performance," Rusche said.

Feed costs to meet the calf's maintenance requirements as well as all fixed yardage expenses have to be borne by fewer pounds of gain. "These programs should focus on reducing costs-per-day for the winter with the objective of achieving cheaper gains during the grazing period," he said. "Owning the calves all the way to the end of the grazing period maximizes the opportunities to recapture any performance lost during the winter."

Winter grazing

Utilizing winter grazing resources when feasible is one strategy to reduce the total costs of a wintering program.

"Research from SDSU has demonstrated that grazing replacement heifers offers clear benefits in lifetime cow productivity," Rusche said.

If grazing resources are available and the weather permits, grazing lower-quality roughage combined with supplemental protein can reduce total cost of production.

A downside of these growing programs, which Rusche pointed out, is that producers can be exposed to more risk because of a longer ownership period. "Owning cattle longer means more time to see falling cattle price, and more opportunities for cattle to get sick or die," he said. "Sound preventative health programs and risk management plans are vitally important to avoid dramatic impacts on a ranch's financial position."

Changing weather conditions can also wreak havoc on marketing or production plans.

Limited grass availability and drought conditions can drastically affect demand for grass cattle and replacement heifers.

"Having a "Plan B" in place can be very important to avoid being forced to dump cattle in an unfavorable market environment," Rusche said.

–SDSU Extension

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