Dear Dr Marshall,

I have seen your articles on the excellent new budgerigar website set up by Gerald Binks. I am hoping you can help me.

I bred three skyblue cocks in 2008. Their sire died at the end of that year and his symptoms were:

• 1. Loss of Weight
• 2. A pulsing in the crop area.

I treated him over a period with tetracycline paste, baytril, megabac and amoxicillin trihydrate. He did not respond and eventually died after 6 months had passed. Now two of his sons have the same weight loss. They are fluffed up and again do not respond to any treatment. They can look fit for a while, but then relapse. There is no nasal discharge. No vomiting, but the faeces are yellowish in colour. Have you any suggestions as to the problem?
(Name and address supplied)

Dr Marshall’s reply:

Weight loss over a prolonged period is consistent with Megabacterial infection. In my book I describe Megabacteria as a secondary disease related to immune suppression. So we have to look for another primary infection which may be a genetic weakness, but more often inherent Polyomavirus infection and / or stress related psittacosis. I would look for the presence of French moult in the stud. Treatment for megabacteria is complicated and requires direct action via crop needle, but the underlying cause has to be identified. Irrespective, the long term approach is to breed away from this line as it is genetically weak.

Fancier’s response:

What do you recommend for treating megabacteria?

Dr Marshall’s reply:

I suggest Fungalin in liquid or tablet form. You need to treat1/4 ml of fungalin liquid with our “Quik Gel”, ER Formula, with a dosage rate of 2.5 mls daily via crop needle for 10 days. After this assess the situation. Often streptococcus is also involved. So an additional antibiotic, e.g. Clavulox liquid 0.1 in the mixture is a help. If good fertility is a problem or patchy, you may have a psittacosis infection which will then be the primary cause and megabacteria the secondary factor because the polyomavirus seems under control.

Fancier’s response:

I have now obtained the fungalin, but in tablet form. How do I mix this prior to inserting it via crop needle as you advised?

Dr Marshall’s reply:

Dissolve one crushed tablet in 10 mls of water. This makes a working solution which you can keep in the fridge. Shake well before use. This should do for a complete course. You can extrapolate the dose down, according to the number of birds involved.

Fancier’s response:

Thank you for your considerable help and advice. It is much appreciated and I have requested Gerald Binks to publish this on Budgerigar.co.uk for the general benefit of the fancy at large.

• By Symptoms
• Emergency First Aid Medicine Options
• Medicine Options for the Flights
• Medicine Options for Breeding Cabinets

By Symptoms

• Sick birds are given their best chance of being saved by adding an appropriate medicine into the ER/Quik Gel formula and administering it directly by crop needle.

  At the same time, whilst waiting for the final outcome of veterinary tests, adding Quik Gel to the drinking water may temporarily protect healthy in-contact birds.

  First aid medicines are “guestimated” from the following list of medicine / symptom options.

Emergency First Aid Medicine Options

• The symptoms are used to “guestimate” the first choice of medicine. The correct medicine choice is confirmed by a positive response of the sick bird to the medicine or from the results of veterinary testing.

   
  The probability of selecting the correct medicine is improved by knowledge of the symptoms and behaviour of the various diseases.

  • Sulfa-type Antibiotic (Sulfadimadine / Trimethoprim)

     
    Sulfa-type antibiotics should be selected when:

    • A sudden cluster of deaths occurs in the flights
    • Stained vents appear in individual birds
    • There is an odour associated with the droppings
    • When the dropping is watery
       

  • Penicillin type Antibiotic (Amoxycillin / Tylan)

     
    Penicillin-type antibiotics should be selected when a sudden illness is associated with:

    • Feather staining above the nostrils
    • Vomiting after cold weather
    • White or brown droppings
    • French Moult and Yellow Belly
    • Pasted vents
       

  • Doxycycline hydrochloride Antibiotic (Doxycycline 10%)

     
    Doxycycline-type antibiotics should be selected when:

    • Intermittent deaths & recurrent diseases occur throughout the stud
    • There is widespread infertility or poor breeding results
       

  • Anti-fungal Medicine (Amphotericin B)

     
    Antifungal medicines should be selected when an illness is associated with:

    • Black or brown and large droppings linked with weight loss
    • The presence of mould on droppings
       

  • Baytril (Enrofloxacin)

     
    Enrofloxacin-like antibiotics should be selected when an illness is associated with:

    • Mice infestation
    • Contaminated food
       

  • Canker Medicines (Ronidasole & Metronidasole)

     
    Canker-type medicines should be selected when:

    • There is vomiting, sudden severe illness with dark green droppings often starting in related birds
    • Watery, smelly droppings of breeding birds
       

  • Water Cleansers & Water Buffers (Water Buffers or Citric acid)

     
    Water Cleansers should be used:

    • In the drinking water to protect all in-contact healthy birds whilst a diagnosis is being confirmed
    • Following a disease to disinfect the flights breeding cabinets, water and food containers

     
    Water Buffers should be used:

    • Whenever there is wet weather or when large droppings appear in the flights
       

Medicine Options for the Flights

• Flights crowded with young birds are especially susceptible to illness because of the fierce competition for feed and rest.

   
  At this time often the birds “just don’t look right” and it is difficult to know whether or not to use medicines.

  At the first signs of large droppings, Quik Gel should be given to the flock before thinking about using antibiotics.

  Veterinary dropping tests are the best means for determine an appropriate antibiotic.

• At the First Signs of Illness in the Flights

  • Isolate sick birds for individual emergency first aid treatment
  • Select a medicine from the symptoms and add to ER/Quik Gel, then administer by a crop needle
  • Add Quik Gel into the drinking water of all other birds whilst waiting for the diagnosis from veterinary tests or response to the “treatment trial”
  • Clean then disinfect or blow-torch floors of flights
  • The correct choice of medicine is confirmed by a positive response of the sick bird to the selected antibiotic. The entire flock (except breeding pairs) should receive this antibiotic medicine when two or more birds have died within a two-week long period
  • Antibiotic choice is incorrect and should be changed when the ill bird fails to respond after 48 hours of emergency first aid treatment. By this time veterinary tests should have returned a definitive diagnosis and indicate the best antibiotic to use

Medicine Options for Breeding Cabinets

• Individual breeding cabinet rather than flock treatment is the best approach for most breeding problems as most diseases of the breeding season reflect the health status of the individual pairs rather than the entire flock.

   
  It is far better to treat individual pairs in their individual breeding cabinets and to avoid flock treatment when problems occur in the breeding cabinet. Exceptions to this rule occur when food contamination infects all breeding pairs and when Psittacosis and French Moult are seriously impacting on breeding performance.

  Flock treatment for the breeding birds is given only for those diseases transmitted through the air or food (French Moult, Aspergillosis, Mite Infestations and Psittacosis) and is not recommended for other diseases such as Canker and Megabacteria which reflect a weakness in individual pairs.

• At the First Signs of Illness in the Breeding Cabinets

  • Treat the individual bird in the breeding cabinet with ER/Quik Gel and selected antibiotic by crop needle
  • Add Quik Gel and selected antibiotic to the drinking water of the affected breeding cabinet
  • Clean and disinfect the affected breeding cabinet
  • Mix Quik Gel into the drinking water of all other breeding cabinets
  • The correct choice of medicine is confirmed by dropping tests or a positive response of the sick bird to the selected medicine. This medicine is then given in the drinking water of in-contact breeding birds but not to the entire breeding room
  • Medicines are stopped but crop feeding continued when the ill bird fails to respond after 48 hours of treatment. By this time the veterinary tests should have returned the diagnosis and the best treatment

Dr Rob’s Products

To order the products mentioned in this article, please use the links on the Dr Robert Marshall page.