A Poultry Health Update Presented By Adam Hady

A Poultry Health Update Presented By: Adam Hady Agriculture Agent Richland County UWEX 11/06

Topics of the Presentation Ø Avian Influenza Ø Mites and Lice Ø Respiratory Diseases Ø Establishing a Biosecurity plan

Avian Influenza Ø What is it? Ø Why are we so concerned?

Low Path AI Ø Mild or no clinical signs in poultry Ø Decreased egg production Ø Mild respiratory signs: cough, sneeze Ø Feces, ocular, oral and nasal secretions Ø Bird-to-bird or contaminated equipment Ø Diagnosis: l l Virus isolation Serology Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Sudden death without clinical signs Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Decreased activity and decreased feed consumption F. A. O. - Italy Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Decreased egg production Ø Soft-shelled or misshapen eggs Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Swelling of head, eyelids, comb, wattles and hocks Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Purple discoloration (cyanosis and hemorrhage) of wattle, comb and legs Source: AVIAN INFLUENZA / “BIRD FLU”,

High Path AI Ø Nasal discharge, coughing, sneezing Ø Lack of coordination Ø Diarrhea F. A. O. - Italy Source: AVIAN INFLUENZA / “BIRD FLU”,

Gross Lesions HPAI Ø Vesicles and ulcers on comb Ø Facial edema Source: AVIAN INFLUENZA / “BIRD FLU”,

Gross Lesions HPAI • Hemorrhage throughout internal body organs and fat Source: AVIAN INFLUENZA / “BIRD FLU”,

Gross Lesions HPAI • Hemorrhage throughout internal body organs and fat Source: AVIAN INFLUENZA / “BIRD FLU”,

Other Health Concerns Ø Mites & Lice

Mites & Lice Ø Mites Size: 1 millimeter in diameter Color: Dark Reddish Black Egg Color & Location: White to off-white along the feather shaft Mites live on the host and in the environment

Mites & Lice Ø Lice Size: 2 -3 millimeters long Color: Light Brown Egg Color & Location: White and at the base of the feather Lice only live on the host, and appear to be fast moving.

Mites & Lice Symptoms: l l Decreased Food Intake Decreased Egg Production Decreased Weight Gain Increased Susceptibility to Other Diseases If any of these symptoms are observed a visual inspection around the vent for lice or mites is recommended.

Mites & Lice Ø Treatment l l Sanitation and cleanliness are keys to control Chemical control: • Dust bath with Sevin® • Pyrethrin-Based spray • Ivermectin medication

Respiratory Diseases Ø These are some of the most common diseases of poultry. Ø They cause a wide variety of impact on the flock, from production loss to mortality.

Respiratory Diseases There are many causes and is very common Signs: • Coughing • Sneezing • Discharge from the eyes and nostrils

Respiratory Diseases Ø Causes: l l Viruses Bacteria Parasites (such as the gapeworm) High ammonia levels

Respiratory Diseases Ø Vectors: l l Other Chickens Rodents Manure Dust

Backyard Biosecurity Ø What is Biosecurity Measures that are taken to prevent the transfer of diseases from place to place and animal to animal.

Six Steps To Biosecurity 1. Keep Your Distance 2. Keep It Clean 3. Don’t Haul Disease Home 4. Don’t Borrow Disease 5. Be Informed 6. Report Sick Birds

Biosecurity Plan Ø What is it? l A biosecurtiy plan is written document that outline procedures for preventing and handling diseases. Ø Are they practical for me? l Yes, no matter what your size of operation it is worth taking time to look at how to minimize disease threats.

Building a Biosecurity Plan Ø The first step: l What am I currently doing? • • Housing Feeders and Waterers- how are they located? What kinds of birds are commingled? What age groups of birds do I have? What are my feed sources? How do I bring new birds into the flock? How do I handle dead birds? Etc.

Building a Biosecurity Plan Ø Step Number Two: l l Identify the areas where diseases could be introduced Identify areas where cross contamination could occur.

Building a Bio Security Plan Ø Step Number Three l Outline ways that you could prevent contamination from your list in step #2 Ø Step Number 4 l Follow your Plan

References Ø AVIAN INFLUENZA / “BIRD FLU”, Power. Point presentation by Ron Kean , UW-Extension Poultry Specialist, 2006 Ø “Common External Parasites in Poultry: Lice and Mites” Ohio State University Fact Sheet Ø “Backyard Biosecurity Practices to Keep Your Birds Healthy” UDSA/ APHIS publication May 2004 Ø American Poultry Association Website: http: //www. amerpoultryassn. com/

Questions ? ? ?