Bursa-Vac

Manufacturer: Intervet/Schering-Plough Animal Health

Bursal Disease Vaccine, Live Virus

U.s. Vet. Lic. No.

226

Description

BURSA-VAC^® contains an attenuated strain of infectious bursal disease (IBD) virus.

Gentamicin is added as a preservative.

Bursa-Vac Indications

When administered properly to healthy, susceptible chickens, this vaccine is used as an aid in the prevention of Bursal Disease.

BURSA-VAC^® is recommended for vaccination of healthy chickens 7-14 days of age, only on premises with a history of IBD infection. However, if chickens are from immune parents, vaccination should be delayed until they are at least 10 days of age, for best protection.

Bursa-Vac Dosage And Administration

Read full directions below carefully.

Rehydration of the Vaccine:

1. Tear off the aluminum seal from the vial containing the dried vaccine.

2. Lift off the rubber stopper.

3. Carefully pour clean, non-chlorinated water into the vaccine vial until the vial is approximately 2/3 full.

4. Put back the rubber stopper and shake vigorously until all material is dissolved.

5. The vaccine is now ready for use in accordance with directions below.

Drinking Water Administration: For vaccination of healthy chickens from 7 to 14 days age by the drinking water method of administration:

1. Remove all medications, sanitizers, and disinfectants from the drinking water, preferably 72 hours before vaccinating, and 24 hours following vaccination.

2. Provide enough watering space so that at least 2/3 of the chickens can drink at one time.

3. Scrub waterers thoroughly and rinse with fresh, clean water.

4. Withhold water for 2 hours before vaccinating to stimulate thirst.

5. Rehydrate the vaccine as directed above.

6. Add rehydrated vaccine at the rate of 1 1/2 gallons (5.7 L) per 1,000 doses to clean, non-chlorinated water.

Age of Chickens	Water per 1,000 Doses
7-14 days	1.5 gal (5.7 L)
2-4 wks	2.5 gal (8.5 L)
4-8 wks	5 gal (19 L)
Over 8 wks	10 gal (38 L)

7. Distribute the vaccine solution as prepared above, among the waterers provided for the chickens. Avoid placing the waterers in direct sunlight.

8. Provide no other drinking water until all the vaccine treated water has been consumed.

Precaution(s)

Store vaccine in refrigerator under 45°F (7°C). Use entire contents when first opened. Burn containers and all unused contents.

Bursa-Vac Caution(s)

Use only in states where permitted and in chickens to be placed on premises with a history of infectious bursal disease.

Only vaccinate healthy chickens.

Consult your poultry pathologist for further recommendations based on conditions existing in your area at any given time. All susceptible chickens on the same premises should be vaccinated at the same time. If this is not possible, then strict isolation and separate caretakers should be employed for non-vaccinated units.

Efforts should be taken to reduce stress conditions at the time the vaccine is administered.

Care should be taken to avoid the spread of virus from vaccinated flocks to clean premises.

The capacity of this vaccine to produce satisfactory results depends on many factors, including, but not limited to, conditions of storage and handling by the user, administration of the vaccine, health and responsiveness of individual animals and degree of field exposure. Therefore, directions for use should be followed carefully.

The use of this vaccine is subject to applicable state and federal laws and regulations.

Warning(s)

Do not vaccinate within 21 days before slaughter.

Discussion

A few vaccinated chickens will usually develop symptoms, i.e. depression, anorexia and diarrhea, and occasionally chickens may die with typical lesions. In most instances, the total mortality in the vaccinated flocks is under 1%.

Field observations indicate that natural outbreaks of IBD in unvaccinated flocks will approximate at least 3% mortality, with numerous culls produced.

Presentation

Drinking water application: 10 x 1,000 dose (NDC 0138-5163-01), 10 x 2,500 dose and 10 x 5,000 dose vials.

Nac No.

10472680