Last week we received regognition from FrieslandCampina, our milk collector who makes all kinds of tasty and healthy products form our milk, for our efforts to produce in a more sustainable way. Not only last year 2018, but this is the second year in row that we one of the 25 most sustainable farms of FrieslandCampina.


The text below was enclosed with the prent in the upper image, stating out our efforts within FrieslanCampina has not gone unnoticed.


We still receive very regular often to our company. Many visitors come for our new Windstreek house for broilers. But the cows also receive regular visitors. Last Friday, May 17 was such a day with many visitors.

In the morning was the kick-off of the visit , the primary school the Korenbloem from Raalte. This primary school (with the class of one of our kids came for both the chicks, the cows and the calves.

A group of Japanese people came to visit around noon. These were accompanied by a number of people from the breeding organization Hubbard from the Netherlands and the United States of America. This group of Japanese were mainly people from the management who were curious about new housing systems and slower growing broilers

These days with visitors are not only educational for the groups but also for ourselves! We always gain new knowledge with stories from other people.

Strange birds…

It seems to be almost a tradition that in the spring we see birds other than our own chickens. In addition to the usual meadow birds, we have had a curlew in the country and a pair of partridges at the feed storage. But today a stork was a guest with the cows in the country.

Emission measurements

In order to comply with the conditions of the awarded experimental status of WIndstreek, our poultry house, we have now started with measuring the emissions. In order to be allowed to keep animals in the Netherlands, these animals must be kept in a recognized low emission housing system. If you are designing from scratch (such as the Windstreek house), you can only keep animals in the system if you request an experimental house status. With this the system must be measured after the actual emission of ammonia and sometimes also odor and particulate matter emissions. The last months, Buro Blauw, an independent laboratory,  has already been busy to draw up the correct measurement protocol. and now the actual measurements have been started, as shown in the pictures below.

Because a full year has to be measured under all circumstances, the final emission figures will still take some time before they will be published.


From 1963 we raise up broilers on our farm. Since 2015 we only raise up slower growing broilers with a Better Life Label from the animal welfare company Dierenbescherming.

In 2015 we also build a new poultry house, the windstreek house. This house is a huge step forward in animal welfare and sustainability. click here for more information about this unique poultry house. But sustainability is also important for our whole farm. Click here for more information about sustainability in our farm.

In 2015 the two broiler houses are rebuilt for slower growing broilers with an extended wintergarden and daylight windows in the roof.

The picture below shows our poultry house 1, while the day old chicks are just arived. When the broilers come out of the egg, the are direct transported to our farm. Here we try to do our best to raise them up as good as possible to an averaged weight of 2.4 kg.


Heat from the sun…

We started in May 2017 with the construction of a sustainable heat storage installation. In doing so, we not only use solar heat to heat up the floor in the chicken house and in our own house, but we also use the heat released during the cooling of the milk in this innovative heat storage system. The Ecensy company has designed the system and is now fully engaged in the installation of the various components.

The total system consists of a large water solar collector surface with heat pump, a insulated hot water storage tank of 50,000 liters, a closed source system for bottom heat storage, a refrigerant storage tank of 300 liters for cooling the milk and a heat pump. In addition, there is a storage tank of 1000 liters with hot water in the cow house and at the house. A new milk tank has also been purchased so that it fits seamlessly into the system.

The total system is operating by 15 February 2018. At the end of summer 2017, the milk cooling with heat pump, closed source and residential heating was put into operation. In addition to the gas reduction that has already been measured at the home last winter, we hope that with the linking of the heat pump with solar collectors (where water is heated up), on the roof of the poultry house, to the already operating system, an even more substantial reduction to achieve our gas consumption.

Below is a photo album with an overview of the progress of the total installation.

  • Een viertal bronnen wordt geboord voor warmte opslag in de bodem
  • Witte vat is warmwater opslag, het blauwe de koude opslag (2°C) en in het midden de warmtepomp
  • Het plaatsen van de warmte opslagtank van 50.000 liter
  • De nieuwe melktank, waarmee de vrijkomende warmte van de melk gebruikt wordt om water op te warmen, is geplaatst
  • De opslagtank van 50000 liter is geisoleerd en van een strakke beplating voorzien
  • Rechtsonder op de foto de zonnecollectoren waar het water dorheen wordt gepompt
  • Temperatuur overzicht van de installatie
  • Proces overzicht in schema


As a Nuffield 2018 Scholar Robert does research to use all his computer data from the poultry houses to develop management skills and with the help of block chain he is wordking on a better data transfer trough the meat chain. He also hopes it can hhelp inform consumers to get a better understanding in the way broilers are raised up.

This project has a specific page on You also find information about the world tourGFP India, witch is part of the Nuffield traject.

More about Nuffield, look at