Daily Archives: April 6, 2009

Study shows Johne’s disease can be controlled affordably

Study shows Johne’s disease can be controlled affordably


A Wisconsin field trial has proven that a Johnne’s disease control program is both effective and affordable.

For the past six years, the University of Wisconsin-Madison School of Veterinary Medicine’s Dr. Mike Collins, in cooperation with the Wisconsin Milk Marketing Board, United States Department of Agriculture and the Wisconsin Department of Agriculture, Trade and Consumer Protection has conducted a trial on nine Wisconsin dairy herds ranging from 72 to 1,400 cows.

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Seven Steps To High Calving Rates

Seven Steps To High Calving Rates

Boyd Kidwell

Progressive Farmer

With 800 brood cows, Tim Sutphin of Dublin, Va., knows the importance of calving season. He and wife, Cathy, run a 2,270-acre cow/calf operation at Hillwinds Farm in Virginia’s Blue Ridge Mountains. “With a calving season of 60 days, our livelihood for the year is determined in a short period of time,” says Sutphin.

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Calf Abortions: Elusive Profit Robbers

Calf Abortions: Elusive Profit Robbers


The problem is easy to identify: early embryonic deaths that lead to repeat breeders and delayed calving result in reduced income, and abortions after the breeding season result in no income. The cause, however, is typically much more difficult to determine. In fact, over half the abortion cases sent to diagnostic labs end up in the “undetermined cause” category.

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Evaluating Cow Nutritional Status

Evaluating Cow Nutritional Status

John Dhuyvetter, Area Extension Livestock Specialist, North Dakota State University

The early onset of winter, extreme cold conditions, and marginal hay quality have contributed to cattle stress and a poorer nutritional status of cows than normal. Visual appraisal of cows for flesh and body condition is useful in evaluating their status, implications for production, and appropriate feeding strategies.

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Blizzard wreaks havoc on livestock producers

Blizzard wreaks havoc on livestock producers

Steve Miller

Tri State Livestock News

Most producers in the region don’t appear to have suffered large-scale livestock losses from the March 23-24 blizzard, but they definitely lost some animals, according to preliminary reports from Extension officials and others.

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Disease Profile: Bluetongue

Disease Profile:  Bluetongue

Walter J. Tabachnick, Chelsea T. Smartt, and C. Roxanne Connelly

University of Florida

Bluetongue is a disease of ruminant livestock that is caused by the bluetongue virus. Bluetongue virus does not cause disease in humans. This virus is transmitted to livestock by selected species in the genus Culicoides (Diptera: Ceratopogonidae). These small insects are biting midges and in some areas are called no-see-ums, sand flies or punkies. Bluetongue virus was among the first recognized insect borne viruses. The disease was first described in livestock in South Africa in 1902.

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Fertilizing Pastures

Fertilizing Pastures

Dr. Bruce Anderson, Professor of Agronomy, Agronomy & Horticulture, University of Nebraska

After adding a hundred, sixty, or even just forty pounds of nitrogen per acre to your pastures in past years, did your grass grow really nice in April and May? Then did it get stemmy in June with cows trampling and laying on it more than eating it? And by August was most of the grass brown or dead, much of it matted down, with the only green material so short that cows could barely get any of it? If this describes your pastures, do something a little different this year.

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