Electromagnetic Force-Driven Needle-Free in Ovo Injection Device

Needle-free injections are mainly used for administering human or mammalian vaccines or drugs. However, poultry vaccines, in ovo injections to embryos, subcutaneous injections to chickens, and intramuscular injections are administered using needle injections. This article presents a new needle-free...

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Bibliographic Details
Published in:Veterinary sciences 2022-03, Vol.9 (3), p.147
Main Authors: Huang, Ko-Jung, Li, Cheng-Han, Tsai, Ping-Kun, Lai, Chia-Chun, Kuo, Yu-Ren, Hsieh, Ming-Kun, Cheng, Ching-Wei
Format: Article
Language:English
Subjects:
Amniotic fluid
Automation
Disease
Eggs
embryonic egg
Embryos
Experiments
Hatching
in ovo
Infections
Injection
injection device
needle-free
Nutrition
Pathogens
Poultry
Power supply
Pressure
Specific pathogen free
Vaccines
Viral infections
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Summary:Needle-free injections are mainly used for administering human or mammalian vaccines or drugs. However, poultry vaccines, in ovo injections to embryos, subcutaneous injections to chickens, and intramuscular injections are administered using needle injections. This article presents a new needle-free in ovo injection device method that uses push-pull solenoids to eject liquid jets, mainly for embryonic eggs of chickens. Furthermore, our study investigated the suitable jet pressures for using this method and the post-injection hatching rates in 18-day-old embryonic eggs. Using this method, we could deliver the liquid to the allantoic and amniotic cavities or the muscle tissue through the egg membrane of the air chamber using a jet pressure of ~6-7 MPa or ~8 MPa. After injecting 0.25 mL of 0.9% saline into 18-day-old Lohmann breed layer embryonic eggs and specific pathogen-free (SPF) embryonic eggs at a jet pressure of ~7 MPa, we observed hatching rates of 98.3% and 85.7%, respectively. This study's electromagnetic needle-free in ovo injection device can apply vaccine or nutrient solution injection for embryo eggs and serve as a reference for future studies on needle-free in ovo injection automation systems, jet pressure control, and injection pretreatment processes.
ISSN:2306-7381
2306-7381
DOI:10.3390/vetsci9030147