Navigation Links
Dairy farmers can fight growing disease threat with chlorine and stainless steel

This press release is available in Spanish.

Two good tips for preventing Johne's disease on dairy farms: Use stainless steel water troughs and add chlorine to the water. That's according to Kim Cook, an Agricultural Research Service (ARS) microbiologist at the agency's Animal Waste Management Research Unit in Bowling Green, Ky. Cook did the research with Carl Bolster, a hydrologist at Bowling Green, and other colleagues.

Stainless steel troughs are expensive, but not as expensive as Johne's disease. Caused by the bacterium Mycobacterium paratuberculosis, this disease can cause losses of as much as $200,000 per year in a herd of 1,000 dairy cows. The losses are mostly from a drop in milk production and the need to cull infected animals. A continued increase in the number of cases of Johne's disease among dairy cattle suggests that there may be unknown sources of contamination on farms.

Cook thought that water troughs would provide a perfect home for bacteria, so she counted the Mycobacteria in the slimy layers in water on the sides of the most commonly used troughs: concrete, plastic, stainless steel, and galvanized steel.

She wanted to see if there were differences in the ability of the bacteria to adhere to and survive on the surfaces of the different materials.

Cook found high concentrations of the bacteria on all troughs within three days of inoculating the water with the bacteria, and they survived for more than 149 days. But the bacterial survival rate was lowest on the stainless steel.

When she added 3 tablespoons of chlorine bleach per 100 gallons of trough water weekly, she found that, by the end of the third week, less than 1 percent of the bacteria remained on stainless and galvanized steel troughs. On the other hand, 20 percent remained on plastic and 34 percent remained on the concrete troughs.

The chlorine's disinfectant effects may have been weakened by the higher pH of concrete and by the tendency of plastic to absorb chlorine.

Based on these results, using stainless steel water troughs with chlorinated water should be one of the recommended practices included in any Johne's control plan, according to Cook.


Contact: Don Comis
United States Department of Agriculture-Research, Education, and Economics

Related biology news :

1. A balanced protein diet can reduce accumulation of nitrogen on dairy cattle farms by up to 35 percent
2. Alperujo -- a beneficial complement in diet of dairy sheep during non-grazing periods
3. Avoiding dairy due to lactose intolerance is unnecessary in most cases
4. Potential of dairy-based package wraps outlined
5. Composted dairy manure in foliage plant production
6. Purdue study finds dairy better for bones than calcium carbonate
7. Farmers beliefs on a higher plain
8. Genetically engineered crops benefit many farmers, but the technology needs proper management to remain effective
9. ORNL, Los Alamos pioneer new approach to assist scientists, farmers
10. Rot-resistant wheat could save farmers millions
11. From genes to farmers fields
Post Your Comments:
(Date:9/30/2015)... , Sept. 30, 2015  The U.S. Court ... issued another key ruling in favor of Crossmatch ... Korean fingerprint scanner company Suprema and its U.S. partner ... 1930, a trade provision that declares it unlawful to ... by infringing two of Crossmatch,s patents, the 5,900,993 patent ...
(Date:9/29/2015)... , Sept. 29, 2015  iDAvatars is excited to be ... its product to market. The official announcement was recently made ... event in San Francisco , where ... powered by IBM Watson. "It is both an ... 100 companies to bring to market the cognitive power of ...
(Date:9/28/2015)... The global image sensors ... billion by 2020, growing at a CAGR of 4.6% ... Illumination (BSI) technique to improve picture quality are expected ...      (Logo: , The light ... loss and, thus, reduce the noise interference and increase ...
Breaking Biology News(10 mins):
(Date:10/9/2015)... ANNAPOLIS, Md. , Oct. 9, 2015 ... entered into the Congressional Record her statement recognizing the ... celebrated October 11-17. IPAW is sponsored by the ... companies, and is designed to:   , Raise ... contributions of plasma donors in saving and improving lives ...
(Date:10/9/2015)... and ROCKVILLE, Md. , Oct. ... privately-held biotechnology company developing next generation vaccines based ... has entered into an exclusive worldwide licensing agreement ... the treatment or prevention of any and all ... agreement, Immunomic Therapeutics will receive an upfront payment ...
(Date:10/9/2015)... Inc., (NASDAQ: PULM ) will be webcasting the Company,s ... th Annual BIO Investor Forum on Tuesday, October 20, ... --> th Annual BIO Investor Forum on Tuesday, ... --> Pulmatrix will be presenting at the ... October 15, 2015 at 8:30 am EDT. Additionally, the Company ...
(Date:10/9/2015)... ... 09, 2015 , ... Leading microbial genomics startup uBiome today launched the first-ever ... between weight management and the microbiome. The study uses the ResearchKit framework, designed by ... app. , The uBiome app is available as a free download from the App ...
Breaking Biology Technology: