Page 13 - National Poultry Newspaper

Ensuring successful installation of in ovo technology
TO date, more than 50 Embrex Inovoject systems are installed in hatcher- ies across the Asia-Pacific region, accounting for 80 percent of devices used for in ovo vaccination.
for our field service spe- cialists to make.
to the environment.
“And if you have bacteria
in the hatch basket.
In this case, the crucial
technology for all eggs at the hatchery.
Training breeds confi- dence
“If the customers aren’t trained or they don’t retain it, they likely won’t oper- ate or follow best practices correctly.
in operations.
Biological support is also
With an upward trajec- tory predicted, how can successful installation and high chick quality be en- sured, especially when the technology is new to most customers?
Focus on hatchery biol- ogy
Though with good hy- giene practices, in ovo vac- cination has proven to be the best vaccination meth- od to protect chicks against diseases.
Once an agreement is signed and the technology is in place, further sam- pling is done to confirm that the environment is clean enough to begin vac- cinating.
Training is crucial for successful operation, as is ensuring buy-in from pro- ducers who may be unfa- miliar with the technology, Mr Abbott said.
“The result of improper training may mean they’re not going to get the results that the device is capable of delivering.”
As an example, if a cus- tomer is unsure of hatch results, eggs are opened to carry out residue analysis – a deep examination of the root cause of any problems.
It’s all about establish- ing baselines and provid- ing support throughout the process, said two ex- perts.
Zoetis biodevice support specialist Ekapol Prueng- panyanont said that taking a whole-hatchery view that considers all contributing factors to good chick health and development is the bedrock of successful in- stallation and use of in ovo vaccination technology.
If a site’s condition is not conducive to in ovo vac- cination, installation is not advised.
Then, the system itself will be tested and vali- dated.
Zoetis field service spe- cialists have tended to be trained on the device in person, but the COVID-19 pandemic has hastened moves toward interactive remote training.
To help ensure compli- ance with best practices, there are further remind- ers provided in the form of instructional placards, documents and diagrams installed on hatchery walls.
The full-service approach not only helps ensure suc- cessful vaccination of flocks but also contributes to the longevity of the in ovo machinery on produc- tion sites.
Zoetis global biodevice technical and operational support manager Jonathan Abbott said, “Being set up for success matters all the way through – not only for the installation of the device.”
“In ovo vaccination is not only the device – it’s about the biology within the hatchery,” Mr Prueng- panyanont said.
However, should a hatch- ery have slightly below- average conditions and a willingness to improve, the Zoetis hatchery support and technical team can still work collaboratively with the hatchery on a targeted approach to reducing mi- crobial load in key areas.
These checks are particu- larly important when the equipment is being import- ed from the US to Asia, Mr Pruengpanyanont said.
GoPro cameras and other audio visual equipment have been invaluable in this, while Microsoft Ho- loLens smart glasses have been used to get a first-per- son view inside hatcheries during installations.
Comprehensive service prolongs device life
“If the device is regularly serviced and customers follow best practices and processes, it’s going to be a well-performing machine for a long time,” Mr Abbot said, noting that in the US where 99 percent of broiler chicks are vaccinated in ovo, customers have devic- es that are still running well after 20-plus years.
“Our manufacturing de- partment has done a good job perfecting the assem- bly of our biodevices, with strong quality control.
“We assess a site by sam- pling and analysing micro- biological cultures, to see what the bacteria or fungus load looks like and if it’s suitable for in ovo vaccina- tion.
In some cases, custom- ers are advised to use bot- tled water – but only after the chosen brand has been tested for microbiological content.
Eggs are opened and test- ed head-to-head, whereby in ovo and manually vacci- nated eggs of the same age and from the same flock, set and hatcher are com- pared.
“Our technicians who give the customer training are probably the most criti- cal part in ensuring success in the market,” Mr Abbott said.
Technical support is aid- ed by a preventative and proactive approach to the maintenance of the devices, which can involve replac- ing parts before they may cause a fault and so avoid any unnecessary downtime
“This may seem like a complex process to sup- port, but the investment is worthwhile, as evidenced by the fact that two-thirds of broiler eggs globally are now vaccinated in ovo, with this figure expected to continue growing.”
“That helps to make the installation a lot easier, because the devices are ready to ‘plug and play’ at that point, with only certain minor adjustments
“The technology means you’re going to put a hole into the eggs – that is basi- cally the embryo exposed
Another issue commonly detected is contamination
Alterations are made if necessary, and the quanti- ties are increased until the vaccination quality is such that it is possible to use the
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National Poultry Newspaper, June 2022 – Page 13
“This helps us to focus more on the customer training aspect,” Mr Ab- bott said.
or fungus in the hatchery, you would incubate those too.”
advice is around what chemicals to use to elimi- nate the issue.
From installation to testing
essential in ensuring con- fidence.
“So we have to evaluate the site before any custom- er signs an agreement to lease our equipment.
Water contamination can pose a major threat to the hygiene of the vaccination procedure in some parts of Asia.
During the initial vac- cination, a small batch of eggs will be used, with resi- due testing after two days.
Knowledgeable and equipped field staff is one thing but making sure those operating the devices day-to-day are using them to their optimum potential is another.
Managing a complex and nuanced process such as the vaccination of devel- oping birds always raises questions from time to time and continuous cus- tomer support allows for any issues to be addressed promptly, Mr Pruengpan- yanont said.
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