Duck Viral Hepatitis Vaccine

Duck Hepatitis Virus Vaccine Description

This live attenuated vaccine is developed using the CH60 strain of duck viral hepatitis virus (DHV-1), providing effective protection against one of the most acute and fatal diseases in young ducklings.

Duck viral hepatitis is characterized by rapid onset, high mortality, and severe liver damage, particularly in ducklings under one week of age. Early immunization is critical to prevent outbreaks and minimize economic losses.

This vaccine is designed for dual application strategies:

1. Direct immunization of ducklings
   • Provides rapid onset of immunity, with partial protection developing within 3–5 days and strong immunity established within 7 days
2. Pre-laying vaccination of breeding ducks
   • Enables transfer of maternal antibodies, protecting newly hatched ducklings
   • Offspring receive effective passive immunity approximately 14 days after maternal vaccination

The vaccine provides more than 1 month of protection in ducklings and up to 6 months in breeding ducks, making it suitable for both short-cycle meat production and breeder programs.

Immunization Program

• Ducklings (1–7 days old):
  • Best administered at 1 day of age (especially with maternal antibodies)
• Breeding Ducks:
  • Vaccinate at 22–24 weeks of age
  • Approximately 1 week before laying

Dosage & Administration

• Dilute with sterile normal saline according to label instructions

Administration routes:

• Ducklings:
  • Intramuscular injection (leg)
  • 0.25 mL per bird (1 dose)
• Breeding Ducks:
  • Intramuscular injection (leg)
  • 1.0 mL per bird (1 dose)

Composition

• Attenuated duck viral hepatitis virus (CH60 strain, serotype I): ≥ 10⁴.⁰ ELD50 per dose

Product Characteristics

• Appearance: Pale red spongy loose mass
• Easily detached from vial wall
• Rapid dissolution after dilution

Safety & Adverse Reactions

• Generally no visible adverse reactions
• Safe for use in healthy ducklings and breeding ducks

Precautions

• Check vaccine vial before use:
  • Ensure vacuum integrity
  • Do not use if contamination or mold is present
• Use only in healthy ducks
• Do not vaccinate weak or diseased animals
• Maintain aseptic procedures:
  • Disinfect injection tools and site (e.g., 5% iodine)
• After reconstitution:
  • Store in cool, dark conditions
  • Use within 4 hours
• Dispose of vaccine materials safely

Packaging & Specification

• Specifications:
  • 1000 doses/vial
  • 2000 doses/vial
• Packaging: 10 vials/box

Storage & Shelf Life

• Storage: 2–8°C
• Protect from light
• Shelf Life: 24 months