Navigation Links
For lambs, a pasture a week keeps blood suckers away

This release is available in Spanish.

Deworming lambs can be minimized with rotational grazing and checking the animals' eye color, according to an Agricultural Research Service (ARS) study.

Animal scientist Joan Burke at the ARS Dale Bumpers Small Farms Research Center in Booneville, Ark., and colleagues made this finding as part of a continuing collaboration with scientists, veterinarians, and extension agents from the Southern Consortium for Small Ruminant Parasite Control.

The consortium was formed in response to the threats posed by worms resistant to parasiticides. Unnecessary de-worming speeds development of resistant worms. Reducing the use of conventional parasiticides fits well into organic and grass-fed management systems and meets consumer preferences of minimizing chemical residues in meat.

The blood-sucking worm, Haemonchus contortus, can cause severe anemia in animals. It is called the barber pole worm for the spiraling of its white, egg-filled ovaries around blood-filled intestines. Worldwide, they cost farmers and ranchers millions of dollars in losses. Animals shed worm eggs with their manure, and the larvae that hatch can be eaten by other livestock.

Burke and colleagues found that gel capsules filled with copper oxide wire particles eliminated the need for conventional dewormers in all but one case. And lambs that also rotated pastures needed fewer dewormings with the copper oxide pills.

They tested 71 lambs naturally infected with the barber pole worm. This is the first study of rotational grazing that used worm-infested lambs. They did the copper oxide deworming only to animals whose inner eyelid color was medium pale, Stage 3, on an eye color chart used as part of a clinical, on-farm system for detecting anemia and eliminating unnecessary dewormings for barber pole infestations.

The stages range from the red eyelids of healthy livestock (Stage 1) to the almost white eyelids of severely anemic goats and sheep (Stage 5).

Some of the lambs grazed on bermudagrass in the same pasture all season, and some were rotated every 3.5 to 7 days.

This work was published in the journal Veterinary Parasitology.


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

Related biology news :

1. Summer-dormant tall fescue grass shows promise for pasture improvements
2. Cape tulips -- pretty but pests in pastures
3. Does pasture irrigation increase groundwater contamination?
4. Right breakfast bread keeps blood sugar in check all day
5. NASA keeps eye on ozone layer amid Montreal Protocols success
6. Genetic tag team keeps cells on cycle
7. Scientists discover DNA knot keeps viral genes tightly corked inside shell
8. Candy-coating keeps proteins sweet
9. A walk in the park a day keeps mental fatigue away
10. Scrawny gene keeps stem cells healthy
11. Dont go changing: New chemical keeps stem cells young
Post Your Comments:
(Date:6/27/2016)... Research and Markets has announced the addition of the ... offering. The report forecasts the ... at a CAGR of 12.28% during the period 2016-2020. ... analysis with inputs from industry experts. The report covers the market ... also includes a discussion of the key vendors operating in this ...
(Date:6/22/2016)... June 22, 2016  The American College of Medical Genetics ... Executive Magazine as one of the fastest-growing trade shows ... at the Bellagio in Las Vegas . ... percentage of growth in each of the following categories: net ... and number of attendees. The 2015 ACMG Annual Meeting was ...
(Date:6/22/2016)... , June 22, 2016   ... management and verification solutions, has partnered with ... software solutions for Visitor Management, Self-Service Kiosks ... provides products that add functional enhancements to ... provides corporations and venues with an automated ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 2016   Boston Biomedical , an industry ... to target cancer stemness pathways, announced that its ... Drug Designation from the U.S. Food and Drug ... including gastroesophageal junction (GEJ) cancer. Napabucasin is an ... cancer stemness pathways by targeting STAT3, and is ...
(Date:6/23/2016)... June 23, 2016 A person commits a crime, ... scene to track the criminal down. An outbreak ... and Drug Administration (FDA) uses DNA evidence to track down ... Sound far-fetched? It,s not. The FDA has increasingly used ... investigations of foodborne illnesses. Put as simply as possible, whole ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is ... has received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval ... Bob Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods ...
(Date:6/23/2016)... 23, 2016  The Biodesign Challenge (BDC), a university ... to harness living systems and biotechnology, announced its winning ... New York City . ... showcased projects at MoMA,s Celeste Bartos Theater during the ... MoMA,s senior curator of architecture and design, and ...
Breaking Biology Technology: