VN April 2022

Vetnews | April 2022 33 2) Wing web stab The wing web stab method of application is commonly used for vaccines that contain fowl pox. One of the organ systems that fowl pox affects is the skin. This route allows for the vaccine to be introduced into the skin. 3) Injection The site for subcutaneous injection is the base of the skull. Both live and inactivated vaccines can be given here. The most widely used site for intramuscular injection is the pectoral (breast) muscle. This is a common site to give inactivated vaccines to older layer and breeder pullets. 4) In-ovo injection In-ovo injection was introduced in the United States to give Marek’s vaccine to chicks while they were still in the egg. This gave the vaccine a chance to start replicating and stimulating an immune response before the chicks were placed on the farm where the challenge awaited them. This route of application has been expanded to include vaccines against other diseases like infectious bursal disease. The first commercial machines, the Embrex® BioDevices, started vaccinating chicks 30 years ago. Billions of eggs are now vaccinated annually globally using Embrex® BioDevices. In conclusion While there are many routes to give poultry vaccines, the right route must be used for the chosen vaccine. Properly handling vaccines and giving them correctly to healthy animals according to the vaccination program maximises the chance of a successful vaccination. A successful vaccination is an important step in disease prevention. For more information on vaccination in poultry, please speak to your Zoetis. v Regulars I Zoetis Livestock Column Full product information available from : Zoetis South Africa (Pty) Ltd. Co. Reg. No.: 2012/001825/07 6th Floor, NorthWing, 90 Rivonia Road, Sandton, 2196 PostNet Suite 53, Private Bag 9976, Sandton, 2146, SA Tel: + 27 11 245 3300 or 0860 ZOETIS (0860 963847) www.zoetis.co.za PP/SD/03/22/169 Examples of application routes and relevant vaccines Application route Disease Vaccine (please refer to the package insert for full application details) Drinking water Avian encephalomyelitis AE Vac Infectious bursal disease (IBD) or Gumboro Bursine®- 2 Specific Salmonella spp. Poulvac® ST (2 nd dose) Infectious bronchitis (IB) Poulvac® IB Primer Spray IB Poulvac® IB Primer IB Poulvac® IB QX Specific Salmonella spp. Poulvac® ST (1 st dose) Escherichia coli (E. coli) Poulvac® E. Coli In-ovo injection IBD Poulvac® Magniplex Subcutaneous injection IBD Poulvac® Magniplex Mycoplasma gallisepticum (MG) MG Bac® Intramuscular injection MG MG Bac® Figure 2: Embrex® Inovoject® Site of Injection All products are for animal use only. Please refer to the package insert approved by the Medicines Regulatory Authority for complete prescribing information. AE Vac , Reg. No. G0471 (Act 36/1947) A lyophilised, modified live virus vaccine of avian encephalomyelitis for drinking water administration. Bursine®-2 , Reg. No. G0963 (Act 36/1947). Intermediate, modified, live, infectious bursal disease virus of chick-embryo origin. Lyophilised. MG Bac® , Reg. No. G0902 (Act 36/1947). An inactivated vaccine as an aid in the prevention of clinical signs of Mycoplasma gallisepticum in healthy fowls. Contains inactivated Mycoplasma gallisepticum in an oil emulsion. Poulvac® AE+Pox , Reg. No. G1683 (Act 36/1947). Live viruses of avian encephalomyelitis and fowl pox, chicken embryo origin. Lyophilised with a stabiliser. Poulvac® E. Coli , Reg No. G3874 (Act 36/1947). The vaccine is an avirulent, live, freeze-dried culture of Escherichia coli in a glass or plastic vial. It contains ≥1,7 x 10 7 CFU per dose of vaccine. Poulvac® IB Primer , Reg. No. G4293 (Act 36/1947). Each dose contains: Infectious bronchitis virus strain H120 10 3.0 – 10 5.4 EID 50 and Infectious bronchitis virus strain D274 clone 10 3.0 – 10 5.4 EID 50 . Poulvac® IB QX , Reg. No. G4034 (Act 36/1947). Lyophilisate for suspension for spray vaccination and contains live, attenuated Avian Infectious Bronchitis virus, strain L1148. It contains 10 3,0 – 10 5,0 EID 50 per dose. Poulvac® Magniplex , Reg. No. G4447 (Act 36/1947). Each dose contains: IBD virus, V877 complexed with antibodies against Infectious Bursal Disease. (GMT SN ≥ 1:32). Poulvac® ST , Reg. No. G3736 (Act 36/1947). The vaccine is a live culture containing Salmonella typhimurium organisms in a glass or plastic vial. It contains ≥ 2,0 X 10 10 CFU/mℓ of vaccine.