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FEFAC: Among the current crises, let’s not forget climate change!

Last year has brought more unexpected turmoil in the feed industry. But even with the effects of COVID-19 and the Russian invasion of Ukraine, the importance of combating climate change has not diminished. If anything, these crises have only highlighted the need for more sustainable feed production practices, said Asbjørn Børsting, president of the European Feed Manufacturers’ Federation (FEFAC).

The events of the past year have highlighted the need for the EU feed industry to continue and expand its environmental efforts, according to a progress report published by FEFAC on its progress this year towards the associations’ 2030 sustainability goals. Shortages and rising prices highlight the need to integrate resilience into sustainability goals. While sustainability goals could potentially fall by the wayside in the face of crisis, it’s important to note that climate change has contributed to some of the difficulties the feed industry faces, said Børsting.

The progress report highlights the publication of a handbook on circular feed in June 2022 as an area where current conditions could accelerate progress towards sustainability. The use of circular feeds not only contributes to sustainability goals by reducing waste and carbon emissions, but also increases the EU’s feed autonomy by creating a more resilient, localized supply chain, Børsting said. Hopefully, he said, legislative measures will improve the industry’s ability to implement circular feed concepts.

Audio monitoring can provide broiler health insights

Audio analytics, sensors and other new tools assess bird behaviour and vocalizations to provide early warning of potential problems related to broiler health and welfare, explained Tom Darbonne, CEO at AudioT Inc. at the International Production & Processing Expo (IPPE) in Atlanta, Georgia, about AudioT’s technology.

The use of sounds to monitor the health and welfare of broilers is nothing new, it’s just that in the old days, farmers had to sit in the barn and listen. Audio-based assessments help automate this process. “It’s not an entire solution, but it’s a part of the solution,” added Darbonne. “The two technologies that track behaviour really well are visual and auditory.” The system uses a combination of acoustic signal processing techniques and machine learning to track and analyse sounds heard in poultry houses.

When an unusual event (e.g. coughs) or an anomaly (e.g. dry auger or fan motor failure) occurs, farmers are alerted. Darbonne said that in addition to assessing behaviour, welfare and health, the audio technology can also detect potential environmental issues, including feed shortages, disruption to sleep cycles, instances when water pressure in the lines are too low, when ventilator fans are about to fail and other unseen or otherwise undetectable issues.

Revealing why vaccination failed to control avian influenza

In some countries, vaccination is the most commonly used strategy to control avian influenza. However, the majority of vaccination programmes against the H9N2 avian influenza subtype have proven ineffective against infection and transmission in the field, although these vaccines were reported to work well in laboratory in specific pathogen-free (SPF) chickens.


The reason for this, according to a press release from Wageningen University & Research in the Netherlands, is that maternal-derived antibodies (MDAs) can interfere with the immune response of chickens to vaccination, which are passed on to the unborn chicks through the egg. The presence of MDAs may be one of the reasons why most vaccination programmes against avian influenza have proven ineffective in poultry in practice. This is one of the conclusions of the research on the low pathogenicity H9N2 avian influenza virus currently prevalent in China, which was the subject of Xue Pan’s PhD thesis at Wageningen University & Research.


“Our results highlight that we need to pay more attention to MDA interference of avian influenza virus vaccines in the field, rather than just looking at antigenic distance,” said Pan, adding, “It is important to develop new vaccines to overcome MDA interference in the field.” During his research, Pan has come up with some new vaccines, such as a new adjuvant for the conventional H9N2 inactivated vaccine and turkey herpesvirus vector vaccine to improve the efficacy of the vaccines. Pan has also identified several mechanisms that influence vaccine efficacy.