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May Calving is Now the Rule for Dickinson Research and Extension Center

The Dickinson Research Extension Center was established in 1905 by the North Dakota legislature to provide the research and information farmers and ranchers need to be successful.
The Dickinson Research Extension Center was established in 1905 by the North Dakota legislature to research and report on agriculture methods that are sensible, appear sustainable, and advance stewardship. The Center’s goal is to engage in scientific research that achieves solutions.

For the last five years, North Dakota State University’s Dickinson Research and Extension Center has been turning its bulls out in August for May calving. The reasons? May calving weather is nicer, the calves hit the ground to take advantage of the annual plant cycle, and best of all, it’s good for the bottom line.

Less Labor, More Money

The Center decided to change to May calving back in 2012 because they just didn’t have the staff to keep up with the extra work that March/April calving required. With the change, excessive calving work went away, the long pre-calving worksheets got a lot shorter, and expenses dropped as well. Meanwhile, problems with breeding in August didn’t show up either. Center Director Kris Ringwall says, “All the too hot, too dry, too whatever reasons not to August breed never have materialized.”

And so, the bull turnout is Aug. 1 for a targeted calving start date of May 12. Grass turnout to cool-season grass is around May 1, with warm-season grasses ready for grazing around June 1. In the fall, these cow-calf pairs convert well to grazing crop residue, standing corn and cover crops as the perennial grasses start to prepare for winter.

May/June calves are not as heavy as their March/April counterparts were at weaning. But average daily gains remain the same and the adjusted 205-day weight for both groups was very similar with March-born calves at 640 pounds and the May-born calves at 639 pounds. To make up for changes in the weaning weights, the Center is now considering a December weaning time for the May born calves.

Dickenson Center Calving Weight Comparisons

Calves Turn Into Good Steers

The center has been running two herds for the last few years. With their new calving date in place, the Center decided to compare production on grass and in feedlot. Half the calves were turned out to grass as 780 pound yearlings and the other halve were sent to the feedlot.

The grass-fed cattle came off summer grass in mid-August at 1,047 pounds. They grazed a field of unharvested pea-barley intercrop followed by unharvested corn and by late fall weighed 1,230 pounds. They finished at feedlot for 82 days and were harvested at 1,610 pounds. The three-year average carcass value was $2,224, returning $896 after subtracting cow costs. As Ringwall says, “Those are some exceptional numbers and are very reflective of the positive outcomes many cow-calf producers were experiencing during that same time.”

Is This For You?

OnPastureUsefulRingwall says the system works, but as with any change, producers will need to spend some time adjusting their management to get things right. He suggests that you “Spend time pondering and be open-minded. All things fail if one assumes the change will fail before it is implemented.”

If you’re considering making this change next year, you might spend the time between now and then reading and studying up a bit and considering obstacles you might encounter so that you can think up ways to get around them. Look for holistic management courses in your area. (And if you’re an organizer of workshops, let us know so we can post them on our Events Calendar.) Send us questions you have about making the switch and we’ll find answers for you. Finally, if you’ve had experiences with changing calving dates that you’d like to share, you can add them in the comments below, or send us a note and we can chat about putting together an article with you.

 

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Kathy Voth
Kathy Vothhttps://onpasture.com
I am the founder, editor and publisher of On Pasture, now retired. My career spanned 40 years of finding creative solutions to problems, and sharing ideas with people that encouraged them to work together and try new things. From figuring out how to teach livestock to eat weeds, to teaching range management to high schoolers, outdoor ed graduation camping trips with fifty 6th graders at a time, building firebreaks with a 130-goat herd, developing the signs and interpretation for the Storm King Fourteen Memorial trail, receiving the Conservation Service Award for my work building the 150-mile mountain bike trail from Grand Junction, Colorado to Moab, Utah...well, the list is long so I'll stop with, I've had a great time and I'm very grateful.

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