Glad you are doing better Aubrey.
Here is an update on my flock....Boy am I relieved.
Took a chilled dead bird with no symptoms and a live bird with the respiratory crud to the vet for testing early last week. I also took a sparrow that was trapped in the sparrow trap.
The vet delivered the dead bird and the live sparrow to the vet school at OSU and took blood samples and swabs from the live chicken. He also advised me to keep up with the Tylan 50 shots and to feed 18% medicated Hog starter with Oxytetracycline. He also suggested soluable tetracycline in the waterers mixed fresh each day for 7 days or until we got the tests results back..
I had lost 30 birds by that time and was getting more and more frustrated. There seemed to be two things going on at the same time. Some birds were dying with not smptoms presenting...fine the evening before and dead the next morning. Others were dying with symptoms of sneezing, watery eyes and sometimes a crud round the nostrils. A few did not have the crud, but would breath by lifting their heads.
While waiting for the results, I chose to take extra steps. During a nice day, I cleared out the coop and run to another pen and I removed all the deep litter in the hen house and all the floor covering in the brooder room (concrete floor with wood shavings). All the nest boxes, feeders and waterers, and wall cages were taken outside and throughly cleaned and sunned. I used a shop vac in the two sections and then I sprayed down all the ceilings, rafters, walls, nooks and crannies as well as the floors with a 20% bleach solution. When dry, I brought back in the nest boxes and wall cages and used new wood shavings in the brooder room and wood shavings and oak leaves in the hen house.
Then I checked every bird and treated with ivomec if they had any sign of mites just to be on the safe side.
Since this past Saturday, I have found no birds that have any sign of the crud or sneezing...and most importantly have lost no more birds.
Tests and necropsy show that the flock was affected by two strains within the Respiratory Disease Complex and one in the Respiratory Adenovirus Infection category...I copied both categories.
Ruled out were both Mycoplasma gallisepticum, Mycoplasma synovaieas well as Fowl Typhoid.
This web page is where I copied the information. The vet gave me this link when he gave me the test results:
http://www.thepoultrysite.com/diseaseinfo/91/respiratory-adenovirus-infection-mild-respiratory-disease
Respiratory Disease Complex
Introduction
Respiratory infections in chicken and turkeys are seen worldwide but especially in temperate poultry-producing areas in winter months. A number of respiratory viruses (Infectious Bronchitis, Avian pneumovirus, Lentogenic Newcastle disease virus, vaccinal and field strains) and bacteria (
Ornithobacterium rhinotracheale,
E. coli) may be involved. Dust, ammonia and other gases, and other factors associated with poor ventilation, may act as predisposing factors. Morbidity is typically 10-20%, mortality 5- 10%. If condemned birds are included mortality may be more than 10%.
Signs
- Snick.
- Sneezing.
- Head swelling.
- Conjunctivitis.
- Nasal exudate.
- Rattling noises.
Post-mortem lesions
- Severe tracheitis with variable exudate - catarrhal to purulent.
- Airsacculitis.
- Pericarditis.
Diagnosis
Lesions, serology, response to environmental changes. Differentiate from Chronic Respiratory Disease (Mycoplasmosis). Given that many flocks are vaccinated it is necessary to establish normal serological response in vaccinated flocks in the absence of disease (some of which may, of course, be challenged by some of these pathogens).
Treatment
Antimicrobial treatment of specific bacterial infections.
Prevention
Effective ventilation, sanitation of drinking water, carefully applied appropriate viral vaccines.
Respiratory Adenovirus Infection, 'Mild Respiratory Disease'
Introduction
An adenovirus infection of chickens with a morbidity of 1-10% and a mortality of 1-10%; at least 12 sero-types have been described and these may be isolated from healthy chickens. Infected birds may remain carriers for a few weeks. Transmission may be vertical and lateral, and by fomites. The virus is generally resistant to disinfectants (ether, chloroform, pH), temperature, formaldehyde and iodides work better. Opinions vary as to whether adenovirus can be characterised as a primary respiratory pathogen. It may occur as an exacerbating factor in other types of respiratory disease.
Signs
- Mild snick and cough without mortality.
Post-mortem lesions
- Mild catarrhal tracheitis.
Diagnosis
History, lesions, intranuclear inclusions in liver. The virus grows well in tissue culture (CE kidney, CE liver).
Treatment
None.
Prevention
Quarantine and good sanitary precautions, prevention of immunosuppression
So...we are still giving antibiotics and making every effort to keep the coop and pens clear of wild birds and working on better water sanitation and dust removal.
Hubby is talking about building a new building and pens for the flock too. He has been wanting my two enclosures in the barn for a shop.