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Dear Madam/Sir,
All these pigeons are most likely infected with the disease. Actually the swallowing problem usually is also a neurological problem - the nerve to regulate the swallowing muscles is damaged -. Also it is logical that the pigeons will get generally weaker because of the severe kidney damage.
As far as therapeutical possibilities, like already mentioned in other answers to this disease, you should consider as much as nutritional support as possible, but also just vaccinating the birds could be of help. Although this is not the general rule it could be of great help to cope with this infection. This must be some kind of homeotherapeutic effect.
Kind regards
Dear Sir,
First of all when have you vaccinated your pigeons against PMV?
When a pigeon is infected with PMV the only thing you can do is give supportive care. The PMV infects the kidneys and the nervous system wich causes watery droppings because of the drinking of lots of water and nervous symptoms. Resistance to other diseases such as coccidiosis and tricho is reduced.
The disease can last for 6 or more weeks. When you have pigeons with heavy symptoms it is best to eliminate these pigeons. After 6 weeks the shedding of the virus has stopped but nervous symptoms and the symptom of watery droppings may persist longer.
Supportive care: electrolytes, probiotics, vitamins for boosting the immunity.
Consult your vet if antibiotics are necessary. After a secondary bacterial infection has been diagnosed you can consider to give an antibiotic.
Keep in mind that there is also a notification obligation when your pigeons are infected with paramyxovirus.
Kind regards,
Dr. Johan Van der Cruyssen
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Dear Sir,
The PMV virus is indeed very resistent in its environment and stays virulent for months between 8° and 20° Celcius (but also lower temperatures) and it resists acid and alcalic solutions. You can desinfect the loft by using a propane gas burner (very effective but be prudent in using), other desinfectants can be formol, fenol or butylhydroxytolueen. Most other desinfectants are not effective enough.
Kind regards,
Ruben Lanckriet
Dear Sir,
It would be advisable to treat the birds also for trichomoniasis (f.e. with ronidazole 400mg per liter water) and paratyphus (f.e. with enrofloxacine). Were the birds vaccinated for paramyxovirus, herpes and paratyphus? If not it could be wise to do so.
I cannot be sure of a diagnosis without seeing the birds, but there is a good chance by taking care of these diseases your problem will be solved.
The treatments you had to give, accounted only for candidiasis, streptococs and other bacteria (salmonella temporary) and coccidiosis.
Kind regards
Dear Madam/Sir,
It is advisable to let your birds be examined by an avian vet. Possibilities are paramyxovirus, paratyphus, endoparasites. Are your pigeons vaccinated/treated for paramyxo and/or paratyphus?
Kind regards
Dear Madam/Sir,
From the information you give me, I would first think of a traumatic injury f.e. a bad fall, that is causing the nervous symptoms. Nevertheless it is still possible she is suffering from paramyxovirus infection or paratyphus. That is why it could be wise to vaccinate your stockbirds for paramyxovirus only to be sure and treat with antibiotics and vaccinate for paratyphus, this in accordance with your veterinarian.
Kind regards
Dear Madam/Sir,
There could be a possibility the bird has had paramyxovirus when he was young. In that case there has been kidney damage and the bird always produces watery droppings. This doesn't give any problems for breeding.
There is also a possibility the bird is a paratyphus carrier, it means it carries the salmonella bacteria while seeming healthy. The bacteria could give chronic intestinal problems.
Also make sure the bird is free from parasites like worms and coccidiosis.
Kind regards
Dear Sir,
Normally there is no problem to vaccinate the birds for paramyxo while sitting on eggs.
Kind regards
Beste,
Waterige mest met sterfte van nestjongen wordt vaak veroorzaakt door E. Coli. Andere oorzaken zoals paratyfus, coccidiose, paramyxo, trichomonas of een intoxicatie kunnen echter niet uitgesloten worden. Het is daarom aangeraden om dit verder te laten onderzoeken. Controle van de oude duiven, van een staal uitwerpselen en autopsie van gestorven nestjongen door een dierenarts kunnen hier uitsluitsel geven over de oorzaak. In afwachting van de resultaten geef je electrolieten en mineralen ter ondersteuning. Ook start je best met een antibioticumkuur tegen E. Coli en secundaire infecties. Eens de resultaten van het onderzoek gekend zijn, kan de strategie in functie van de uiteindelijke diagnose aangepast worden.
Dear Madam/Sir,
A diagnostic examination of the birds by a veterinarian is important. With the symptoms you describe, there are some possibilities. It is important to know if there is/was any vomiting, problems flying or nervous problem. From the info I have from you I think mainly of adenovirus, paratyphus, endoparasites, perhaps paramyxovirus, streptococcus or another infection. There is also a possibility the young birds are weakened by the circovirus so any infection can cause severe problems, as this virus takes away the pigeon's immunity.
Kind regards
Dear Sir,
The paramyxovirus attacks mainly the kidneys of a pigeon. It is this kidney damage that determines whether the bird will be able to have a successfull racing career. Allthough I doubt all birds that have had the virus will be ever able to compete at the level they should, I also think a number of birds will be able to reach their normal racing capabilities. If the birds have had severe kidney damage it could take long before the birds have good droppings, even with the virus long gone. So the aspect of the droppings can give you an idea of the later preformance capability of the bird. It could help to vaccinate the birds an extra time for the disease.
Kind regards
Dear Madam/Sir,
Normally the bird should be free of the virus. If the birds you put him with are vaccinated, there is absolutely no danger. If the bird gets nervous signs later on, there is still a possibility the bird has the paramyxovirus, but other infections like paratyphoid should also be considered.
Kind regards
Dear Sir,
The newcastle disease vaccines for chickens can be used with pigeons with some results but I would advise to vaccinate the birds twice a year. The La Sota vaccine for chickens in the drinking water has to be used 4 times a year (every 3 months). The pox virus is more difficult. If you don't have any pox vaccine for pigeons, you cannot take preventive measures for the disease. If there is an outbreak you can try to quarantine infected birds and try to control the mosquitos in the loft. Mosquitos are the most important infecting vector.
Kind regards
Beste David,
De paramyxo-inenting heeft onder normale omstandigheden zeer weinig bijwerkingen. Het ruiproces wordt er zeer weinig tot niet door beïnvloed. Ik zou wel adviseren om de enting minstens 2 weken voor koppeldatum uit te voeren.
Vriendelijke groeten
Dear Sir, Some of the symptoms are indeed indicative for paramyxo virus. Nevertheless, as you mentioned yellow diarrhoea with birds before they die, I also suspect adenovirus type II. Yellow diarrhoea is a sign the liver is very badly harmed and that's the case with adenovirus type II. The virus even completely destroys the liver. With adenovirus II, there is 100% mortality, this means that if a bird gets sick it will certainly die. Luckely not all the birds get sick. It is not clear why one bird gets sick and the other not. The fact that sick birds also could survive on your loft, indicates adenovirus type II can't be the only problem. It is very possible that the watery dropping are caused by the hairworm infestation and/or paramyxo. The bad feathers could be an indication the young birds are also infected with circovirus. This virus attacks immune cells of the young bird (under 4 months old), this makes them vulnerable for all kinds of infections. It is a major problem this year in Belgium with a lot of deaths in young birds. They can die from ordinary infections like canker, but also from paratyphoid, adenovirus, etc... Certainly do not underestimate the hairworm infestation as it can also be cause of deaths. As for the vaccination for paramyxo, it is advisable to also do this as soon as possible. Kind regards