1a. Objectives (from AD-416):
The overall goal is to study the effectiveness of natural strategies in the control of enteric problems such as necrotic enteritis and Salmonella and Campylobacter infection and promote gut health in poultry raised under organic conditions, while assisting organic poultry producers to comply with the requirements of the National Organic Program. Specific research objectives for Appalachian State University are: 1. Evaluate the effectiveness of management strategies to prevent and control enteric pathogens in organic poultry this will include evaluating the impact of forage types on poultry performance and 2. Determine the impact of feeding methods that incorporate native woody perennials on poultry performance. The outreach/extension objectives for Appalachian State University are to: 1. Disseminate results of the project to the organic poultry community, through numerous delivery methods including conferences, electronic and printed materials, and training activities in a research and teaching oriented organic poultry facility; and 2. Conduct outreach to organic poultry producers, avian health professionals, extension specialists and other interested stakeholders regarding the objectives and results of this project; including organization of organic poultry.
1b. Approach (from AD-416):
As part of a USDA Organic Research and Extension Initiative funded proposal research and extension objectives will be conducted in cooperation with collaborators from the ARS Unit in College Station (Byrd); University of Arkansas, Fayetteville; University of Connecticut; Appalachian State University; University of Tennessee; Penn State University; University of Arkansas, Pine Bluff; and the University of Kentucky, focused on a comprehensive approach to reduce pathogen and disease sources in organic poultry production systems. Caprylic acid (CA) is a natural, fatty acid present in bovine milk and coconut oil, and is an FDA-approved food-grade compound. Trans-cinnamaldehyde (TC) is also a food-grade compound naturally present in cinnamon oil. Our preliminary research indicates that CA and TC are bactericidal on Salmonella and Campylobacter, highlighting the potential of CA and TC as new tools to control these pathogens in organic poultry. In addition there is evidence that these compounds may reduce necrotic enteritis in birds and a disease model will be used to assess this approach. In addition, treating birds and the litter with natural products such as these essential oils, probiotics, and bacteriophage will also be assessed.
3. Progress Report:
This project, funded through the Organic Agriculture Research and Extension Program, NIFA, USDA is a collaborative effort with Appalachian State University. Studies are being conducted on using combinations of natural plant compounds and lactose (natural milk product), and management approaches customized for organic production; our objective is to develop comprehensive strategies to eliminate enteric diseases (necrotic enteritis) and foodborne bacterial contamination (Salmonella and Campylobacter) in organically raised poultry. Research is currently being conducted under Research Objective 1. Evaluate the effectiveness of management strategies to prevent and control enteric pathogens in organic poultry. We are currently conducting trials evaluating the effect of pasture access and housing and feeding systems on the health of the birds and incidence of enteric pathogens. Under the Extension/Outreach Objective 1: Disseminate results of the project to the organic poultry community, we have been working to develop a multi-faceted outreach plan for helping organic poultry farmers implement science-based management strategies to improve bird health and increase the microbiological safety of organic chicken products. During this period of the project we have participated at multiple meetings to present our project to producers and interested stakeholders, have visited with organic poultry producers, and have made significant progress in the development of educational materials for the online community and printed materials for producers without access to internet services.