Proceedings

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2011
Saturday, February 26th
12:00 AM

Anaplasmosis in Iowa

Grant A. Dewell, Iowa State University

12:00 AM

In 2010 we saw an increased number of cases of Anaplasmosis from submissions to the Iowa State University Veterinary Diagnostic Laboratory (ISU-VDL). Although the disease is not enzootic in Iowa it is observed regularly. Environmental conditions in 2010 may have enhanced the spread of anaplasmosis within the state. Anaplasmosis is caused by a protaozoan parasite (Anaplasma marginale) that is spread by ticks and biting insects. Additionally, it can be transmitted by needles or surgical equipment. Once the parasite reaches the blood stream in infects red blood cells (RBCs) where they multiply. Anemia results from a phagocytosis of the RBCs. Anemic animals will develop icterus (jaundice) but not hemoglobinuria (red urine) because RBC destruction occurs from phagocytosis in the spleen rather than RBC lysis in the blood vessels.

Another Year of Record Fed Cattle Prices

Ron Plain, University of Missouri–Columbia

12:00 AM

The beef supply is declining and cattle prices are rising. Fed cattle prices averaged $95/cwt in 2010, up $12.30 compared to the year before and up $2.75 from the previous record set in 2008. Feeder cattle prices were close to record high last year. Yearling prices were the second highest ever with 750-800 pound steers averaging $108.71/cwt at Oklahoma City, up $12.58 from the year before and only $2.23/cwt short of the 2005 record. Steer calves weighing 500-550 at Oklahoma City averaged $124.54/cwt in 2010, the third highest annual average behind 2005 and 2006.

Diverse Cattle Operations—One Common Goal

Tim Kaldenberg
Bill Couser
Colin Woodall, National Cattlemen's Beef Association
Sparky Wellman

12:00 AM

The common goal is: “To provide a safe, nutritious, consistent quality product for our families and consumers in an environmentally friendly way…without government intervention.”

Finding Links in the Value Chain

Jeff Ryan

12:00 AM

Jeff Ryan and his family run a diversified operation in Winneshiek County in northeast Iowa. In addition to a mix of corn and alfalfa, they also operate a cow-calf herd of just under 100 head of commercial cows. The cowherd originated from their dairy operation in the 1970’s. Jeff has been in charge of the beef portion of the operation since age 14 in 1982. That’s when he initiated an artificial insemination program to improve genetics of the cowherd. A scale was added the following year to measure feedlot performance.

Hay Storage Approaches

Miles Keaton, John Deere

12:00 AM

Hay is an incredibly valuable crop, the 3rd most valuable crop in Iowa. Producing baled hay uses a large amount of resources (land, labor, seed, fuel, fertilizer, equipment). The way you store that hay after baling can have a big effect on losses in hay quality, so it’s worth investing additional resources (money, labor, equipment) in hay storage to preserve the value of the hay and to ensure a good return on your initial investment.

Management Intensive Grazing And How We Look at Costs

Dave Lubben, Lubben White Oak Farms

12:00 AM

We have a family owned farm cooperation consisting of my father and one employee. Our operation is 1900 acres in size with 650 acres in corn, 500 acres in soybeans, 160 acres in hay, and 500 acres in pasture in which we practice management intensive grazing. We have 200 beef cows and 300 head finishing feedlot.

Preventing Perinatal Beef Calf Mortality

Terry J. Engelken, Iowa State University

12:00 AM

Perinatal calf mortality (PCM) refers to death loss from the time of calving through the first month of life. Previous USDA estimates put this loss at over 2.7 million calves ($976 million) annually, with nearly 70 percent coming within four days of calving. Financial estimates from a 1993 Colorado State University study put the cost of sick and dead calves at nearly $12.50 per weaned calf. This includes 35 pounds of lost weaning weight from each sick calf.

Producer and Practitioner Assisted Research: Suckling Beef Calf Pneumonia

Terry J. Engelken, Iowa State University

12:00 AM

In an effort to better define the causes and costs of respiratory disease in suckling beef calves, we need your help! Faculty members at the ISU College of Veterinary Medicine are looking for calves that are showing evidence of respiratory disease prior to weaning. We would like to work with you and your local veterinarian to collect a set of samples from the sick calf and two normal herdmates. We are sampling both sick and normal calves to be able to tell the difference in pathogen load between the two groups.