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How to make more grass equal more beef

Agriculture.com Staff 03/16/2011 @ 2:03pm

As you move your pastures toward a system of management intensive grazing, you're going to grow more forage—maybe even twice as much. That begs the question: How do you manage your herd to best utilize that extra grass to give you a payoff in more pounds of beef sold?

Justin Sexten and Rob Kallenbach, forage specialists at the University of Missouri-Columbia, say most cattle producers have three choices:

• Expand the cow herd.

• Buy in stocker calves.

• Keep your homegrown calves longer.

“It's a matter of determining when you have the extra pasture growth and then inventorying your herd for peak demand of that grass,” says Sexten. “Your goal is to get peak pasture production and peak demand from the herd to match up.”

Fall Calves Work Best

Kallenbach says this process of evaluating peak production and peak demand will lead some producers to revamp their calving system from spring to fall. That's because fall calves are about the perfect size by the next spring to go on grass, right when cool and wet spring weather is producing the most grass.

“The market has been rewarding bigger feeder cattle, 750 pounds or bigger,” he says. “To get them to that size, I have a hard time with calves born in the spring. You have to keep them a long time and feed them through a winter to get them to grazing the next spring as yearlings. With fall calves, you don't have that issue.”

Adds Sexten, “Fall calving works well to manage excess forage in the spring when it is too wet to make hay. It offers greater flexibility in the summer, because in dry years you can market the calves when forage begins to get short. And in fall calving systems, peak cow-nutrient demand occurs around the first of December. If the cows have had opportunity to gain condition during the summer and early fall, they can use this condition during the winter when forage quality and quantity are lower.”

When it comes to utilizing all the forage a farm can grow, Kallenbach says he'd rather have his herd a little overstocked than understocked. “If I'm overstocked and run into a problem, I can feed my way out of it with hay or grain,” he says. “Or I can sell a few cattle to work my way out of it, too. But if I'm understocked with grass going to waste, it's all left on the table.”

He sees many farms and ranches taking the opposite approach—understocked—because they worry about running out of feed. Many cows tend to be overconditioned as a result, carrying more weight than they need.

“You can actually pinch (underfeed them to let them lose some fat) cows for a while and not impact performance,” he says. “That's another reason why I think it's easier to manage systems that are slightly overstocked.”

Rotational Grazing

Kallenbach says if you want to fully utilize the extra pasture grasses you grow from better management, you need to implement a system of rotational grazing. That involves breaking pastures into smaller paddocks and rotating cattle through them a few days in each paddock. In some cases, this can let you double the number of animals carried on a given acreage.

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Couple things om grass production 03/25/2011 @ 7:49pm In much of the usa one can increase tocking rates of cows simply by calfing later. ( talking Midwest, some Mountain areas etc.. ) Calf em in May and June, and wean calves early say end of Sept or 1st part of Oct. They calf easier then, more live calves, and frees up TONS of feed. What it amounts to, is the folks who calf early in the Spring are feeding a P 3 ( 3rd trimester PG ) cow in the dead of winter when nutrient requirements are high ( 70% of the calf formation is in the P 3 stage ). One can winter a P1 thru P 2 cow for darn near nothing compared to P 3 cow feed rquirements. Also by early weaning the calves...that relieves nutrient requirements off the cow. One can feed 3 short weaned calves for what one cow eats. Jumble all the afore and one can increase cow numbers right at 25% on the same feed base and sell 25% more calves that are BIGGER too. Also, supping 5 lbs of ddgs per head per day on grass basically doubles the carrying capacity of all pastures when running 400 to 500 lb calves over the summer ( and they gain 1+ lb per head per day more too ). 25 to btw, supping the later calfing ( May June calfers ) cows with 7 lbs ddgs per day almost double the cow carrying capacities of their pastures too. Just some ideas. With current cattle prices folks might be farther ahead to simply run less cattle and keep selling fewer but bigger calves and backgrounded cattle for higher and higher prices too. Keep in mind in usa agri..increasing production generally wrecks prosperity. There's no real reason now will play any differently.

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