Ducks At A Distance

anatipestifer

anatipestifer

An acute or chronic septicaemic disease caused by Riemerella anatipestifer, syn Pasteurella, or Moraxella a. It affects ducks of any age, sometimes turkeys, and may also be isolated from chickens, game birds and wild waterfowl. Mortality is 2-75% in childish ducks. Transmission is mainly preside over, bird-to-bird, via toenail scratches, especially of the duckling foot, or through respiratory epithelium during respiratory disease. It can also be by faecal contamination of feed, water or the environment where survival of the infectious agent may be prolonged. Adverse environmental conditions and pre-existing disease are predisposing factors.

Sulphonamides and potentiated sulphonamides are the products most commonly recommended for drinking water application. Subcutaneous injections of penicillin + dihydrostreptomycin, or streptomycin + dihydrostreptomycin are also highly effective.

Excellent husbandry and hygiene, rigid depopulation and disinfection, adequate protection, ‘hardening off’, right household relative damp, sulphonamides in feed. Inactivated and attenuated vaccines available in some countries. Autogenous bacterins sometimes used.

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Signs of anatipestifer are:

Weakness.
Neck tucked in.
Head/neck tremor.
Ataxia.
Disinclined to walk.
Incoordination.
Dyspnoea.
Perihepatitis without much smell or liver hurt.
Pericarditis.
Airsacculitis.
Enlarged liver and spleen.
Occasionally fibrinous meningitis.
Salpingitis
Purulent synovitis.
Chronic arthritis, sometimes with erosions of the joint cartilage.
Visual and/or nasal discharge.
Hyperexcitability

Lesions, isolation and identification of organism – blood or chocolate agar in candle jar or 5% CO2. Differentiate from duck viral enteritis, duck viral hepatitis, fowl cholera, colibacillosis, coccidiosis, chlamydiosis.

For more Health tips and guidance, stay kool

For more Health tips and guidance, stay kool

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Mixed flock AHM 4-1-10 1

A few nice waterfowl identification images I found:

Mixed flight AHM 4-1-10 1
waterfowl identification

Image by THE Holy Hand Grenade!
A mixed flight of shorebirds and waterfowl at Arrowhead Marshland, MLK Regional Shoreline, Oakland, CA. Taken by a Nikon D40x at ISO 400 with a Sigma 70-300 DG non-APO macro lens. (at 300)

Visible: Superior Scaup Aythya marila, Willet Catoptrophorus semipalmatus, Black-necked Stilt Himantopus mexicanus, Mallard Anas platyrhynchos., and possibly a Lesser Scaup Aythya affinis. (see clarification: I only ID’d the first bird of the species I saw…) There doubtless are one or more other species present, but I’m missing them due to the hard lighting (backlit by the rising sun…) and/or the birds position (there are many "sterns" in view that are all that you can see of that bird!)

One viewer has a note that some of the smaller birds are "Small-billed Dowitchers": Dowitchers Limnodromus sp? they may be, but in these lighting conditions, I have severe doubts that anyone could separate a Long- from a Small-billed in the field, (the bill lengths really overlap…) or from this photo. The only reliable field identification of Dowitchers is by hearing them call – and these weren’t calling.

Egyptian goose
waterfowl identification

Image by doozzle
Identification thanks to Mr. Moor

Barrow’s Goldeneye
waterfowl identification

Image by ????????
There was another man taking pictures of this beauty. We spoke briefly. He told me what this was, but I didn’t catch what he said and subdue had to pore through my Bird Guide to make an identification.

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