Effective Vaccination Program for Squabs from Vaccinated and NonVaccinated Pigeons with Tissue Culture Adapted Pigeon Pox Live Attenuated Vaccine Regarding Maternal Immunity
Journal Title: Journal of Applied Veterinary Sciences - Year 2022, Vol 7, Issue 1
Abstract
In this study, the duration of immunity as well as maternally derived antibodies (MDA) induced by the innovated tissue culture pigeon pox vaccine (TC-PPV) were evaluated for the first time. It was found that the postvaccinal reaction was more prominent in pigeons vaccinated with egg-adapted PPV (EG-PPV) (100%) than in pigeons vaccinated with TC-PPV (88%). The duration of induced immunity was higher using EG-PPV (1 year with a peak of neutralizing antibodies index 3.25 while it was 2.75 using TC-PPV) after 1 month of vaccination. MDA in squabs of vaccinated dams with TC-PPV maintained the protective level of antibodies up to 3weeks post-hatching (WPH) with 100% protection against a challenge. In contrast, in squabs of vaccinates with EG-PPV, it remained up to 4 WPH with 90 % protection. Such antibody levels hinder the immune response to vaccination with TC-PPV resulting in vaccination failure with 40% protection for squabs of TC-PPV vaccinated dams at 3rd WPH and 60% protection for squabs of EG-PPV vaccinated dams at 4th WPH reflecting the successive vaccination at the 4th WPH and 5th WPH, respectively for hatched squabs with 80% protection in both groups while in squabs of unvaccinated dams; the vaccination with TC-PPV appears to be protective from 2nd WPH with 100% protection. In addition, this study recommends revaccination of pigeons with TC-PPV after 10 months and vaccination of their squabs not before 4 WPH to avoid vaccination failure by MDA.
Authors and Affiliations
Kafafy, M. H. and Ayatollah, I. Ibrahim
Keywords
Related Articles
- EP ID EP698586
- DOI 10.21608/JAVS.2021.104273.1113
- Views 117
- Downloads 0
Pharmacodynamic and Pharmacokinetic Comparison between Selective and Non-selective COX-2 Inhibitors in Mice
Nowadays, there is a need for good and efficacious NSAIDs with minimal side effects to be applied in veterinary medicine. The aim was to compare the pharmacodynamics (analgesia and inhibition of COX-2) and pharmacokineti...
Evaluation the effect of high and low viscosity Nano-hydroxylapatite gel in repairing of an induced critical-size tibial bone defect in dogs: Radiolographical study
Many types of bioactive materials are categorized as bone tissue substitutes for reconstruction and regeneration of bone defects, such as nano-hydroxyapatite. The objective of the present study was to radiologically eval...
A mini-review on fish mass kills within the Egyptian fisheries and aquaculture sectors: Impacts and proposed solutions
Mass fish kills are abrupt events in which a significant number of fish of different ages and species perish in a specific aquatic region. Dramatic waves of mass kills have involved a large variety of economic fish speci...
Isolation, identification and sensitivity of Mannheimia haemolytica from Ewes udder with clinical mastitis
The current study aims to isolate and identify <em>M. haemolytica</em> from ewes with clinical mastitis using conventional techniques with comparative study to their resistance to several types of antibiotics for the iso...
Histopathological And Ultrastructure Alterations In Gills Of Common Carp (Cyprinus Carpio) After Long Time Exposure To Zinc Oxide Nanoparticles
This study aimed to assess the toxicity and severity of zinc oxide nanoparticle (ZnO-NPs) in the tissues of gills. Therefore, carp fish (Cyprinus carpio) were subjected to sub-lethal concentration of (ZnO-NPs) 9mg/l for...