Page 11 - National Poultry Newspaper

Raising the bar for salmonella control with Poulvac ST
SALMONELLOSIS is a disease of major impor- tance to the poultry in- dustry, not only because of the impact on growth and production in broil- ers and layers but also the implication to pub- lic health in transfer of salmonellosis from the food chain to the human population.
tivity loss by the adoption The advantage of this In older birds there
Salmonella is mostly in- troduced into flocks and farms with contaminated feed and water.
creasing, in large part due plied to chicks from one
While many different measures have been rec- ommended on poultry farms, vaccination with live-attenuated vaccines have a central role in the reduction of salmonella in commercial opera- tions, by increasing im- munity of the birds and preventing transmission of salmonella.
Zoetis poultry techni- cal services manager Dr Branko Karaconji said, “Poulvac ST can form an important part of your salmonella control pro- gram.”
The salmonella name is derived from the name of the US veterinarian Dan- iel E Salmon who isolated the bacterium from pigs.
In commercial produc- tion, the major problem with salmonella is related to the possibility of colo- nisation without clinical signs and disease mani- festations.
Another factor to be taken into consideration related to salmonella introduction in poultry flocks and farms is the move to free range pro- duction, where increased bacterial challenges oc- cur by feral birds, togeth- er with the other recog- nised risk factors.
Use of vaccines against salmonella typhimurium stimulate the immune response and the reduce severity and duration of naturally occurring dis- ease caused by salmonel- la typhimurium.
It also does not persist in the environment after 14 days post vaccination and is safe for birds and other non-target animals.
It is impossible to stop all of the factors that cause salmonellosis, though it is possible to help protect against both the disease and produc-
Poulvac ST vaccine is safe and efficacious in helping to build immu- nity in chickens.
That is why vertical transmission of salmo- nella with egg yolk and albumen contamination is a major problem.
Antibiotics are effective but will not eliminate sal- monella totally.
Vaccination goals are to reduce horizontal and vertical transmission and reduce salmonella bacte- rial load in the environ- ment.
For further information, contact ProductSupport. au@Zoetis.com or 1800 814 883.
of a well-managed vac- cination plan.
live-attenuated vaccine is its use by mass adminis- tration – spray or drink- ing water – to stimulate a strong long-lasting im- mune response.
may be hardly any clini- cal signs, however those birds become carriers of salmonella typhimurium and will spread bacteria and contaminate the egg surface.
to past excessive use of antibiotics.
day of age by the spray- ing vaccination method, and the second vaccina- tion two weeks later via drinking water.
The goals of vaccina- tion are to reduce hori- zontal and vertical trans- mission and reduce sal- monella bacterial load in the environment.
Salmonella typhimuri- um was first isolated from pig intestines in 1886.
Pathology findings are related to enteritis, perito- nitis, pericarditis, cheesy caeca, unabsorbed yolk sacs, and necrotic intesti- nal and liver lesions.
Salmonella infection may be also established in the rodent populations from which water and feed are contaminated.
The best tools to control salmonellosis are pre- ventative tools related to biosecurity, management practises and vaccination.
The vaccine initiates a self-limiting systemic in- fection that does not per- sist in birds after 14 days post vaccination.
“It is a live salmonella typhimurium vaccine for active immunisation of chickens, as an aid in the prevention of salmonella typhimurium colonisa- tion of internal organs, including intestines and caeca,” Dr Karaconji said.
Salmonella also causes disease and mortality in poultry and non-avian species.
It is impossible to stop all of the factors that cause salmonellosis – however, it is possible to help protect against both the disease and produc- tivity loss.
The vaccine does not revert to being infectious and can be differentiated in diagnostic laboratory from field strains.
The clinical signs and lesions of ST present themselves as an infec- tion, with high chick mor- bidity and high mortality, and include symptoms such as pasted vent, diar- rhoea, lethargy, anorexia, conjunctivitis, arthritis and indications of septi- caemia.
Salmonella can in- fect ovaries and migrate through eggshell pores and membranes.
Many different antibiot- ics are used for the treat- ment of salmonellosis.
Poulvac ST is presented as a refrigerated vaccine stored at 2-8C in a pack of 10 vials, each contain- ing 5000 doses.
Resistance to antibiotics used as a therapy in order to control salmonellosis has been constantly in-
Poulvac ST may be ap-
IMPACT SALMONELLA NUMBERS BEFORE THEY IMPACT YOURS.
What doesn’t get into your operation, won’t hurt you. Poulvac® ST aids in reducing Salmonella levels1. Discover the benefits of Poulvac® ST and help give Salmonella the boot.
CONTACT YOUR ZOETIS REPRESENTATIVE TO LEARN HOW POULVAC ST CAN HELP YOUR OPERATION EXPERIENCE MORE | 1800 814 883
1 Data on file, Study report No. 04-16-7ADMI
ZL1456
Aussie’s Admiral steamers sanitise and clean at the same time!
Efficient hygienic cleaning
PRESSURE cleaners and steam cleaners are widely used in poultry farms around Australia.
gets the job done faster. Aussie’s hot water ma- chines only come with slow-speed pump and mo- tor combinations running at 1450rpm – they provide for a longer and trouble-
Producers understand that high pressure cleaning must be fast, efficient and use less water.
free operating life.
The machines have four-
Aussie Pumps has devel- oped a range of high-pres- sure steam cleaners, with performance way above that produced by European machines.
pole 415V or 240V motors, depending on the size.
Aussie Pumps – Austral- ia’s major manufacturer of high-pressure water blast- ers – has been working with producers for the past 20 years.
Pistons are solid ce- ramic and pumps are all top-quality ISO 9001 – not knock-offs.
This has led to the de- velopment of products that are particularly suitable for shed washdown.
A steel chassis with bumper is stronger and longer lasting than poly- propylene and is suitable for tough conditions.
Many machines sold dec- ades ago are still working in farms and sheds around Australia and do a great job every day.
Four wheels, not castors, are included for ease of movement on uneven sur- faces.
Some farmers like the idea of being able to use hot water or even steam.
The new Admiral steam- er is way ahead of some imports.
They enjoy the concept of combined cleaning and sterilising capability.
It features a wide range of protection devices that are aimed at providing the maximum convenience for the operator.
Killing potential vi- rus germs in any intense animal husbandry appli- cations is considered es- sential.
These include low-water cut-out warning, safety thermostat, timed total stop with automatic shut- down, micro-leak detec- tion, a low fuel sensor with awarninglightand18litre diesel fuel tank.
Aussie’s new Admiral 4000 cleaner is a 4000psi steam cleaner with in- creased capability that can produce 130C.
The whole idea is to learn from the industry and ask growers what they need.
The Admiral can save time, water and electricity in the cleaning process.
The ultimate desire is to give them something better than they could imagine.
The 4000psi capability means it can move waste and debris fast, creating huge time savings for pro- ducers.
For further information, including information on Aussie’s free safety train- ing program, visit aussie pumps.com.au
That combination of high pressure and 15LPM flow
They all come with stain- less-steel covers, replacing the traditional European plastic cover.
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National Poultry Newspaper, April 2022 – Page 11