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Dear Madam/Sir,
The symptoms of catarrh you are describing could indicate an infection with trichomoniasis, candidiasis and/or herpes virus. Since you have already treated for canker, you and your vet should probably take these two other possibilities into account. Herpes is very common but is a virus so it is hard to treat. You could consider an L-lysine treatment and vaccination if possible.
Kind regards
Dear Madam/Sir,
Herpes is very common in pigeons and a lot of pigeons stay carrier of the virus. This doesn't at all have to mean that bird will not perform well, but in cases of immunity weakening this virus can cause some temporary respiratory and/or throat problems. This can happen because of the races, the stress in the baskets, etc... Then it can help to administer L-lysine on the food for one week f.e. This has a blocking effect on the multiplication of the virus and does help clinically, but it is no medication so it can come back when the birds still have a weak immunity or other diseases. Vaccinations can be of help to prevent the disease from breaking through.
Kind regards
Dear Madam/Sir,
Having read your complete story and search for a cause, I'm personally left with one main explanation from my point of view, but I could off course still be wrong. It could also be important to inform us on which kind of samples were sent (droppings, blood,...)?
From my perspective I think of herpes virus being responsible for the symptoms you are seeing. Although it came back negative I would be curious to know from which samples and with what technique herpes virus was investigated. It could be interesting to vaccinate your pigeons for pigeon herpes virus if you can get such a vaccine.
Also it is my experience that vaccinating against paratyphus (salmonella) (in my case always with dead vaccines), has a positive effect on general immunity and so also on immunity for herpes problems. There are a lot of false negative sample tests for salmonella, so coming back negative from a lab doesn't have to mean anything.
Hoping to be of some help.
Kind regards
Dear Madam/Sir,
These white-yellow spots could be caused by herpes virus, trichomoniasis or candidiasis. These spots could also be harmless sialolites. I would have to see the birds to be sure. Try to let the birds be checked by a vet for trichomoniasis and candida. My suspicion from your story is herpes virus. This is very common in racing birds but difficult to treat.
Kind regards
Dear Madam/Sir,
This symptom indicates strongly for a pigeon herpes virus infection. You should also consider candida, trichomiasis and/or bacterial overgrowth. The scratching is an indication for upper respiratory problem but this could also be related with the herpes virus.
Kind regards
Dear Madam/Sir,
Although the racing condition during the week and for short training tosses seems to be fine from the information in your question, it is still very probable a disease or syndrom is causing the problems you are talking about. I am thinking about streptococs, paratyphus and/or herpes. These diseases are not easily detectable on normal diagnostic examination. More information on history of the loft and diseases is necessary to get a complete picture and to be able to find the cause.
Kind regards
Bonjour Madame/Monsieur,
Les symptomes peuvent indiquer une E. coli problème. On doit aussi penser à la trichomonose, paratyphose ou herpes. Avec E. coli on peut traiter avec f.e. un sulfonamide avec trimetoprim (ou amoxicillin) pour 8 jours et/ou essayer de laisser faire une autovaccin.
Mes salutations sportives
Dear Sir,
Causes of this could be: trichomoniasis, herpes, upper respiratory problems (bacteria like mycoplasma and others), candida infections. Depending on the problem you should give different medication. Try to get a diagnosis with an avian vet. Treatment for trichomonas could be ronidazole, for bacteria antibiotics like spiramycine, linco-spectin,..., for candida nystatin, for herpes there is no effective treatment without losing condition of the birds completely, but I have some results with L-lysine. As a preventive measure I have good results with a high quality colloidal silver solution.
Kind regards
Dear Madam/Sir,
The symptoms you describe are indicative for a throat inflammation. This can be caused by trichomoniasis, herpes, candida and/or other bacteria like E. coli, staphylococcus, pelistega. A simple diagnostic examination by a vet could show if the birds are infected with trichomoniasis or candidiasis. It is always first important to rule out canker (trichomoniasis) before you can take other steps. When the pigeons are free from canker or candida and the symptoms remain, you can give antibiotics for bacterial problems. Lincomycine-spectinomycine and amoxicillin are mostly good antibiotics for these indications, but an antibiogram (after isolation of pathogenic bacteria in throat swabs) could give more information on what antibiotic is best. But even then we should not underestimate the influence herpes virus could have on the symptoms, even an underlying problem like paratyphus could be of great importance. Try to rule out all of these causes and give the pigeons enough space and fresh air.
Kind regards
Dear Sir,
There are no such pigeon vaccines available at the moment. The EDS vaccine for chickens has been used with pigeons for adenovirus, but scientifically the efficacity of this is seriously questioned, because the EDS adenovirus is very different to the pigeon adenovirus. The problem with vaccines developed for other animals is that these vaccines are not tested with pigeons for efficacity or side-effects. Sometimes the virus strains can differ a lot from the virus strain that causes disease with pigeons. It could be interesting to test the chicken circo vaccines on pigeons. I don't think it is interesting to use the Marek vaccines (herpes) for chickens, because the virus is quite different.
It is absolutely not advisable to use chicken pox vaccines with pigeons. In some chicken vaccines the original (living) pigeon pox virus is used. This means you would give your birds the pox disease.
Kind regards
Dear Sir,
The spots on the epiglottis are probably sialolites. These are harmless cristallisations of beak saliva. Sometimes it is associated with herpes virus. Mostly this is no problem for racing and it can stay there a long time.
A virus like herpes can not be treated effectively, but it can be sometimes advisable to treat the birds for secundary bacterial infections. In that case you can use antibiotics that are effective for upper respiratory problems f.e. linco-spectin, doxycycline, tylan, spiramycine, erythromycine, amoxicilline, sometimes enrofloxacine,... If the birds are healthy and show no repiratory signs I would not treat. As preventive measure colloidal silver can have excellent results.
Kind regards
Beste,
De symptomen die u beschrijft, heb ik reeds meermaals gezien bij duivenliefhebbers die eveneens van die matjes gebruik maakten. Bij verwijderen van de matjes waren de problemen verdwenen.
Andere mogelijke oorzaken van nestjongen sterfte, kan te maken hebben met E. coli septicaemie, trichomonasbesmetting van de navel (heden ten dage uitzonderlijk te noemen) en er wordt soms ook herpes virus aangetoond en geassocieerd met de problemen. De eerste twee zijn goed te behandelen (maar opletten met resistentie, dus het kan aangewezen zijn een antibiogram te laten maken). Het laatste is een virus en is dus moeilijk te behandelen.
In uw geval denk ik dat het verwijderen van de matjes voldoende zal zijn.
Vriendelijke groeten