Skip to main content
Published on: July 7, 2020
Last updated on: October 22, 2025

Ongehoord has released footage of pigs filmed at Van den Oever VOF, the company owned by Farmers Defense Force leader Mark Van den Oever. The footage, taken in April 2020, shows "Beter Leven" pigs in bare pens with slatted floors under a manure pit. Many animals have red, inflamed eyes and necrotic wounds on their ears.

Pigs with red eyes are a sign that the animals are living in an unhealthy barn environment. Dust and high ammonia levels (from sources such as manure pits beneath the barn floor) irritate the mucous membranes of the nose and eyes. This irritation causes inflammation, resulting in pain and itching.

Ear necrosis can be identified by the presence of black spots and bloody wounds on the ears of pigs. This condition results from ear biting. When pigs bite each other's ears, wounds form that can become infected with bacteria. The ears lose their normal blood supply, leading to the death of the ear tips. As the infection worsens, the ear becomes thick and swollen.

Ear biting is akin to tail biting and other biting behaviors. It is a behavioral disorder mainly triggered by boredom and lack of stimulation. The pigs feel unhappy and display their stress and frustration towards their companions.

Biting is a widespread issue in pig farming.

A commonly used "measure" to limit the damage caused by tail biting is the preventive tail docking of piglets shortly after birth. Tail docking is a painful procedure because the peripheral nerves of newborn piglets are already developed all the way to the tip of the tail. Using a heated device, the tail is cut off without anesthesia, and the wound is cauterized at the same time. However, tail docking is not a true solution.

Van den Oever VOF, located on Kievitsdwarsweg in Sint Hubert, specializes in fruit growing, Christmas tree cultivation, and pig fattening. The animals arrive at the farm when they are 10 weeks old and are fattened for four months until they reach a slaughter weight of 120 kg. Van den Oever VOF receives European subsidies under the Common Agricultural Policy. In 2018, this amounted to €25,592.43, and in 2019, €29,061.93.

1 location

Sources

  1. 1

    Vermeer, H.M., Hopster, H. 2017. Signal indicators for enforcement of "Open Standards" for animal welfare; Pilot climate in pig houses. Wageningen University & Research - Livestock Research.

  2. 2

    Online Veterinarian: Ear necrosis and ear biting. Van Boekel, 2015. Article in Pigbusiness.

    pigbusiness.nl/artikel/20...-oornecrose-en-oorbijten/

  3. 3

    Dossier: Preventing tail biting in pigs. Wageningen University & Research - Livestock Research.

    wur.nl/nl/show/Staartbijt...voorkomen-bij-varkens.htm

  4. 4

    Half of pig farms struggle with tail biting. J. Zonderland, C. de Lauwere, M. Bracke, 2009. Wageningen University & Research - Livestock Research.

  5. 5

    Tail-biting behavior in finishing pigs: prevalence, pathogenesis, symptoms, predisposing factors, prevention, and treatment. B. Driessen, D. Smulders, T. Parmentier, J. Van Thielen, R. Geers. Veterinary Journal, 2008.

  6. 6

    FDF leader: "Activism is pushing the boundaries." Article in "Boerderij," 2019

    boerderij.nl/Home/Achterg...-randje-opzoeken-499975E/

  7. 7

    Information from a telephone conversation with Van den Oever on July 6, 2020

  8. 8

    Database mijn.rvo.nl/europese-subsidies-2018 VAN DEN OEVER V.O.F. 5454GP MILL EN SINT HUBERT

  9. 9

    Database mijn.rvo.nl/europese-subsidies-2019 VAN DEN OEVER V.O.F. 5454GP MILL EN SINT HUBERT

  10. 10

    Farmers Defence Force activists also receive substantial subsidies from Brussels. Article in the Financieel Dagblad, 2020.

    fd.nl/economie-politiek/1...veel-subsidie-uit-brussel

View our investigation into the Dutch and Belgian animal industries with undercover footage.

We greatly appreciate a donation. Every cent donated is spent on fair investigative work into the animal industry.

Join Ongehoord and help improve animal welfare. Discover how you can contribute to our work.

Do you have a question or want to share something? Please contact us via the contact form.

2026 OngehoordData access