2013 Annual Report
1a.Objectives (from AD-416):
The objectives are to examine farm management systems for year round gastrointestinal nematode control, identify resistant animals to minimize problems with nematode infection, conduct on-farm studies on the feasibility of techniques developed from research studies, and educate outreach professionals and producers on adopting available organic gastrointestinal nematode control strategies in small ruminants by disseminating state-of-the-art knowledge and procedures.
1b.Approach (from AD-416):
The impact of continuous use of integrated methods that have been developed by these investigators previously will be examined using a systems approach on farm by producers who will submit information on the success of approaches employed. Development of decision tools for producers will occur and teaching modules for farmers, educators and students will be developed and implemented.
Scientists from Heifer Ranch and the USDA, ARS Dale Bumpers Small Farms Research Center in Booneville, Arkansas, examined the relationship between fecal egg counts determined on the ewe during the peri-parturient (late gestation and lactation) period and her offspring around the time of weaning (time when separated from the ewe) to examine the two selection indices and correlations. Samples have been collected from the USDA, ARS Dale Bumpers Small Farms Research Center, Heifer Ranch, and other producers from Arkansas, Missouri, Ohio, Georgia, New York, and Maine from Katahdin sheep. Data is being analyzed to develop indices for identifying genetics for both parasite resistance in the young lamb and in ewes during gestation and lactation.