Extended-range spray applicator

Abstract

The disclosure relates to an extended-range spray applicator, and methods of making and use thereof, for dosing vaccines and / or probiotics to avian animals at a distance.

Description

CROSS-REFERENCE TO OTHER APPLICATIONS[0001]This application claims priority to US provisional patent application serial No. U.S. Ser. No. 62 / 161,440, filed on 14 May 2015, and herein incorporated by reference in its entirety.RELATED APPLICATIONS / INCORPORATION BY REFERENCE[0002]Any foregoing applications and all documents cited therein or during their prosecution (“application cited documents”) and all documents cited or referenced in the application cited documents, and all documents cited or referenced herein (“herein cited documents”), and all documents cited or referenced in herein cited documents, together with any manufacturer's instructions, descriptions, product specifications, and product sheets for any products mentioned herein or in any document incorporated by reference herein, are hereby incorporated herein by reference, and may be employed in the practice of the invention. Citation or identification of any such document in this application is not an admission that such ...

AI Technical Summary

Benefits of technology

The invention is an extended-range spray applicator that is designed to deliver liquid medicament, such as vaccines and probiotics, to avians (especially chickens) by spraying them with droplets ranging in size from 50 μM to 200 μM. This spray applicator can vaccinate or administer probiotics to avians at a distance ranging from 5 to 10 meters. The technical effect of this invention is to provide an effective and safe method for delivering liquid medicament to avians, which can help prevent and treat various respiratory diseases in birds.

Problems solved by technology

Nevertheless, it is not always synonymous of efficacy as it can lead to vaccination failures uneven uptake and / or development of post-vaccination reactions PVR if it is not properly managed.

However, the principal cause of sheet breakup stems from interaction of the sheet with the surrounding air, whereby rapidly growing waves are superimposed on the sheet.

However, the time allowed for spraying is determined by the length of time during which the shed / house ventilation can be inoperative.

The UlvaVac provides the uniform droplet size required for vaccinating avian animals including chickens, including broilers, but its range is limited i.e. the user must be relatively close to the birds.

For example, if increasing the speed of the air flow caused the vaccine droplet size to become too small, the vaccine would end up in the lungs of the birds, which is not desirable.

Furthermore, if higher speed caused the vaccine to be sprayed non-uniformly, some of the birds would be under-protected, while others would be over-dosed, and suffer from side effects.

For broilers, protection from good spray vaccination reduces the possibility of economic losses caused by diseases that enter via the respiratory tract and can cause weight loss and general poor performance of the flock.

For layers and breeders, as well as respiratory disease, Infectious Bronchitis viruses can damage the kidneys and oviduct with infections resulting in false layers, drops in production and poor quality eggs.

If there is a lot of air movement, the vaccine can get blown away by the ventilation system.

IB vaccines and probiotics are quite fragile, so when poultry producers reconstitute the vaccine or probiotic, they must vaccinate and / or administer the probiotic to the birds as quickly and effectively as possible.

If an IB vaccine is put through drinker lines, it can take the birds more than two hours to drink it all so a lot of the vaccine virus will have died before it has been consumed by the birds.

Similarly, administration of probiotics through drinker lines is known to be problematic as the liquid may be spilled by the birds or the probiotic settles in the lines and does not result in even distribution to the flock.

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