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ARS Home » Southeast Area » Mississippi State, Mississippi » Poultry Research » Research » Publications at this Location » Publication #171414


item Branton, Scott
item Roush, William
item Evans, Jeff
item Collier, Stephanie
item PHARR, G.

Submitted to: Southern Poultry Science Society Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 10/30/2004
Publication Date: 1/15/2005
Citation: Branton, S.L., Roush, W.B., Evans, J.D., Collier, S.D., Pharr, G.T. 2005. A self-propelled, constant speed spray vaccinator for commercial layer chickens. Southern Poultry Science Society Meeting. Abstract 210. p. 50.

Interpretive Summary:

Technical Abstract: Vaccination of commercial layer chickens is labor intensive and often results in poor rates of seroconversion which, in turn, generally correlates with decreased flock uniformity and performance. Major problems with vaccinators currently in use by the layer sector of the poultry industry include the non-uniform speed of the applicator system and pressure fluctuations at the spray nozzles which together contribute to sporadic dispersion of the vaccine as the vaccinator is carried or pushed past the cages. The CPJ Vaccinator is battery-powered, self-propelled, maintains a constant speed, and operates with constant nozzle pressure. In field use, the CPJ Vaccinator has resulted in a labor savings (from 5 men to 1 man) and time savings (from 45 minutes to 7.5 minutes) to vaccinate a house of 75,000 pullets with live Mycoplasma gallisepticum (MG) vaccine. Six-week post-vaccination seroconversion rates for MG were also improved - 90.63% as compared to 70.57%