Ameraucana Forum
The Official Ameraucana Forum => Housing, Health & Hatching => Topic started by: Suki on July 10, 2015, 04:06:09 PM
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Someone on FB posted about perosis. I have never experienced it but it seems to be a vitamin takeup issue. Anyone have experience with it here?
http://www.thepoultrysite.com/publications/6/diseases-of-poultry/220/slipped-tendon-perosis/
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Which is another reason I believe in feeding a scientifically balanced commercial starter feed - it has, or should have, all the necessary nutrients and vitamins that chicks need. I suppose it is possible there have been cases of perosis that were misdiagnosed as Marek's disease, because the apparent symptoms can be very similar.
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A lot of people these days are going to fodder for all their chickens needs.
http://www.the-chicken-chick.com/2014/02/sprouting-grains-for-chickens-fodder.html
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Years ago my nephew had pheasant chicks with it. I have a Salsbury Manual of Poultry Diseases and could tell that is what it was. I asked what he was feeding them and he said chick starter. He didn't know they needed a game bird starter and the problem went away once he switched to the proper feed.
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We have 1 bird ( a 10 week old pullet) with similar symptoms. We were concerned about Marek's but we have no other sick birds out of 150 or so. Can you have just 1 bird with Marek's? Maybe it is something like this or a genetic mutation prohibiting vitamin uptake?
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We have 1 bird ( a 10 week old pullet) with similar symptoms. We were concerned about Marek's but we have no other sick birds out of 150 or so. Can you have just 1 bird with Marek's? Maybe it is something like this or a genetic mutation prohibiting vitamin uptake?
Yes, I would guess Marek's over Perosis if all the birds are on the same feed/conditions and only one to several out of 150 birds show those symptoms.
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Recently, from the library discard sale, I got a book published in the UK on Poultry Diseases. On Perosis it says:
--------------------------- Osteopetrosis (Thick Leg Disease; Osteodystrophia Fibrosa).The virus causing this condition appears to be related to that causing lymphoid leucosis. Itis characterized by increased osteoblastic activity in birds about 2 - 3 months old and is more common in the male than in the female. The long bones of the extreÂmities, especially the metatarsi, are thickened, deformed, and take on a boot-like appearance, which is characteristic of the disease (Fig. 5). The affected portions are hot and insensitive. The disease is slowly progressive and ends fatally in about two months . It is transmitted from chicken to chicken and / or from turkey to chicken.The lesions can be distinguished from those of rickets because the bone is deforÂmed without thickening, whilst in rickets the keel bone is often bent). In perosis there is also a twisting and flattening of the hock joint.
I gave up trying to upload the shot...Look over here. https://flic.kr/p/BPomYa (https://flic.kr/p/BPomYa)
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I don't believe I ever have seen an affected bird. Guess I've been fortunate.
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I ran into this again....seems it happened in Northwestern states/Western Canada because they use they used dolomitic limestone instead of Oyster Shell for calcium for hens. It can also happen if you give birds a lot of epsom salts -- another high in magnesium product.