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Download the 85 Case Studies in One File! Creation and monitoring of case studies Maximum milk from fresh grass Farm: “Weidebedrijf Aeres Farms” Location: DRONTEN, THE NETHERLANDS Background The Weidebedrijf (PastureBarn), the educational farm of Aeres Hogeschool in the city of Dronten in the Netherlands is an organic farm with a grazing system based on the Irish system: more milk from fresh grass with maximum grazing. Maximum grazing and more milk from fresh grass are realized through an intensive grazing management, strip stocking, and a spring calving herd. The Weidebedrijf of the Aeres Farm currently has 60 Holstein dairy cows and 28 young cattle. It is not a family business, but it is an independent company that runs for research and educational purposes. The farm has a grazing platform of 45 ha light clay soil with an organic matter content of 4%. The grazing platform is classified as permanent grassland. The grazing platform is fully available for grazing. Next to several grazing cuts, it is on average mowed 1.5 times per year. The machine park is very limited for Dutch conditions and consists of: • Enricher • 60 hp tractor • Mower • Rake • Sprinkler device for spreading straw in the barn • Manure scraper in the barn • Milking parlour 2x14 swing over • Feed cart (25% for the Weidebedrijf and 75% for the Flevoland barn, which is close to the Weidebedrijf) The work at the Weidebedrijf is done by one employee and several students from different study programs, both from vocational schools and universities of applied sciences. 1 Creation and monitoring of case studies The barn at the Weidebedrijf is 40 meters by 75 meters large. There are 20 igloos available for the young stock. When the cows are in the stable in the winter, they are checked three to four times a day. The veterinarian visits on average once a month. The calves are dehorned. In some cases, there is more than 10% mastitis in the herd and ketosis occurs in more than 10% of the herd. Acidosis and milk fever are less common, with less than 10% of the herd. Parasites, infections and claw problems do not occur. All cows are artificially inseminated. The cattle are fed once a day. Their ration consists of grass. Concentrates are fed in the milking parlour. The water supply consists of tap water, which is provided via drinking bins both in the stable and on the pasture. The average milk production of the Weidebedrijf is 8200 liters per cow per year and the total milk production is 500.000 liters per year. Detailed description The innovation of the Weidebedrijf (PastureBarn) is that it uses a completely different grazing system than the average Dutch farmer. The farm was set up as a low-cost farm in 2015. The philosophy behind the system is that costs are reduced in every part of the farm and in this way, you will be able to earn money as a farmer. Full grazing is a key characteristic of this system. A second aim of the farm is to show the possibilities of this system to young agricultural students and entrepreneurs and show them the benefits of the system. The grazing system of the Weidebedrijf is inspired by turning a maximum amount of fresh grass into milk. The system is set-up to allow the cows to consume as much fresh grass as possible. In order to achieve this, the Weidebedrijf works with a spring-calving herd. The motto is: Let the cow do the work and use machinery as little as possible. You could say that the cow is used as a 'contract worker'. Results The cows graze for about 22 hours per day during the majority of the grazing season and a little bit less in spring and autumn. The grazing season is about 240 days per year. The grazing platform is divided into plots of approximately 0.8 ha and every day a new plot is offered. The botanical composition of the grazing platform is a mixture of mainly perennial ryegrass and clover. The 2 Creation and monitoring of case studies average yearly grass yield equals about 11 tons dry matter of grass per ha. About 4 tons per ha is cut for silage and about 7 tons is used as fresh grass for grazing of dairy cows. The fertilization consists of solid manure from the stable and slurry in a ratio of about 50/50. The farmer evaluates the strategy of the Weidebedrijf positively. Results of the innovation are an efficient and intensive grazing system and limited costs. The strategy of the farmer is based on more milk from fresh grass with grazing. This works quite good. The cows currently produce 8200 liters per cow from fresh grass and only a limited amount of concentrates. Adoption criteria A very important observation made by the farmer is that when starting a different concept like the current one, it is crucial to stick to the plan. This is difficult at times, but what is the added value of a new concept if the idea soon deviates from the original plan? Perseverance and learning by doing are important. The innovation is successful on this farm due to a number of reasons that interfere with each other: • The availability of (scientific) knowledge, since the Weidebedrijf of Aeres Farms is closely connected to Aeres University of Applied Sciences. • The Weidebedrijf is an educational farm for agricultural students. The farm/innovation has multiple purposes: a normal economic farming purpose but also a purpose for learning processes. The combined functions create the opportunity to innovate. • The curiosity of the farm management and the students to try new methods. For other farmers that would like to adopt this innovation, it is crucial to meet a few adoption criteria. The farmer needs to have a large grazing platform (in relation to their number of cows) and needs to have a grazing mind-set. Farmers need to be flexible in order to adjust grazing to fluctuating weather conditions. Future prospects From the farmer’s point of view, this system is in theory possible in many areas of the Netherlands. However, the corresponding and necessary grazing mind-set is often not available among Dutch 3 Creation and monitoring of case studies farmers. Education is crucial to change the mind-set and to provide scientific knowledge about the benefits of this system. The Weidebedrijf makes a strong contribution in this area by educating a large group of young agricultural students and entrepreneurs. 4 Creation and monitoring of case studies Organic low-cost farm with own brand Farm: “Farmer Bart” Location: Rotstergaast, THE NETHERLANDS Background On the sandy soil in Rotstergaast in the province of Friesland (northern part of the Netherlands) is the farm of Bartele Holtrop settled. Farmer ‘Bart’ milks over 100 Jersey cows at his organic farm with about 50 hectares grassland in use. Four years ago he started realizing his dream; a farm based on a more natural production process that can last for a thousand years. This means for him that his farm can exist for a long time and not be dependent on others. Next generations must also have the opportunity to have a future on the farm. To achieve this goal, the farmer uses a low cost farming strategy based on maximum use of natural resources. Farming management The cows are grazed day and night from March to November. Maximum grazing is the base for the farm and therefore the herd is spring calving. The organic managed grassland is rich of a broad kind of different species of grass and legumes. The most common species and legumes are Italian ryegrass, perennial ryegrass, red and white clovers, goose grass and chicory. 1 Creation and monitoring of case studies Every 12 , the cows get a new piece of grass at their disposal. This change takes place after milking, because the cows are milked in the field. The farm uses a 2x15 mobile milking parlour. The mobile milking parlour can be moved anywhere by means of a tractor. A big advantage of this is that the soil is protected, because the cows do not have to go back to the shed. During milking, the cows get about 1 kg of grass-based concentrate next to the fresh grass. The organic milk is sold to a cheese factory. Last year, the farm has reached an important milestone. The Jersey milk was processed into an own cheese brand called '' the Tjonger''. The Jersey cows have a milk production of on average 4,200-4,500 liters milk per cow per year, with high levels of fat and protein. The daily work on the farm is done by 2 AWUs (Annual Work Unit). The machine park of the company is simple and for daily use only, based on the natural farming system. The machine park consists of: • Tractor New Holland T6140 with front loader • Silage cutter • Feed mixer • Mobile milk parlor The land processing, the spreading of manure and the harvesting is done by a contractor. Financials The annual costs of the farm activities are low due to the low cost management strategy. The cost price of the production of 1 liter milk is about €0.42. The annual main costs are the maintenance of the milking parlor and the purchase of organic concentrates and feed additives. The selling price of the milk is on average about €0.65 per liter milk. The net earnings of 1 liter milk are €0.23, so the farm is in a healthy financial situation. The farm has a company-website with a lot of information about the activities on the farm: www.boerbart.nl.
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