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Bovine leukosis is a contagious disease of cattle caused by Bovine Leukemia Virus (BLV). The disease is characterized by a persistent leukemia which can culminate in malignant lymphosarcoma. The National Animal Health Monitoring System (NAHMS) determined that BLV is present in 89 percent of U.S. dairy operations.
Only 30 to 40 percent of BLV carriers will develop leukemia, while less than 5 percent develop malignant lymphosarcoma. A later study determined the incidence of lymphosarcoma was six to seven cases per year per 1,000 cows if the herd prevalence of BLV was 50 percent.
In the nearly 20 years of writing this column, I often have written about science and art: what they are to me and how we might describe their role in our public space.
For instance, I have written that science is a methodological approach of testing ideas or premises. We start with little knowledge and use inductive reasoning and empirical evidence to arrive at understanding.
Here are some of the new products or updates to previous products that have been announced as of October 12, 2011. Return to this section of the Progressive Dairyman website periodically to find out what new products will be impacting the dairy industry.
The All-American Dairy Show, held Sept. 17-22 in Harrisburg, Pennsylvania, featured six days of high-quality dairy cattle, youth activities and industry meetings.
For the first year in the show's 48-year history, Progressive Dairyman attended the event, giving away magazines and sponsoring the daily Barn Grazing newsletter. Each day the newsletter featured trivia questions, and those who were the first to answer received a free Proud to Dairy hat.
Precision Diagnostics LLC, based in New Holland, Pennsylvania, will be hosting an embryo transfer school October 18-20. The training will take place at Red Knob Farm in Peach Bottom, Pennsylvania. For more information about the program, contact Doug Speicher at (717) 443-4662 or visit the website at www.precisiond.com.
The three-day course provides intense, hands-on training about embryo placement and specifics related to handling, paperwork and equipment involved in embryo transfer.
The concept of nutrient management is not new, as agricultural producers have always gone through some version of logically deciding the amount, source, placement, form and timing for nutrients delivered to their crops.
It is to the farmer’s advantage to think this through and make good crop nutrition and soil fertility decisions, as crop productivity and farm profitability are impacted.
Demand for compost products is on the rise, presenting a viable value-added product for farmers. Yet few farmers take advantage of this opportunity, often lacking the time or marketing skills to explore turning compost into a marketable commodity.
Compost marketing plan
Successful marketing of compost requires a foundation of knowledge about compost – benefits to potential customers, uses for compost, the composting process and compost characteristics. It helps to assure customers that your facility is legitimate and dependable.
Governor Tom Corbett recently established a dairy leadership council that will help ensure that state government meets the needs of Pennsylvania‘s nearly $2 billion dairy industry.
The Pennsylvania Dairy Leadership Council, chaired by Agriculture Secretary George Greig, will make recommendations to the governor on policies, procedures, regulations and legislation that may aid in the development of the dairy industry.
Kansas needs to invest hundreds of millions of dollars more in its dairy, beef and pork industries in order to give the state a larger share of U.S. animal agriculture production, Gov. Sam Brownback said.
"I just want to see us put that on steroids and grow it," Brownback said during an economic development summit in Garden City.
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