Example 2 Cubicle housing for 60 dairy cows and young stock • • • • • • • • • • • 60 dairy cows Young stock (heifers) Cubicle housing Alleys with slated floors Mattresses in cubicles Common feed alley Dairy cows on one side of the feed alley, young stock on the other Natural ventilation Uninsulated building Calving pen with litter 2 x 7 herringbone milking parlor Function and design Three row housing system with cubicles. There is a drive thru feed alley for distribution of feed e.g. means of tractor, mini loader or similar. On one side of the feed alley there are two single rows of cubicles for lactating cows. Dry cows and heifers are placed in one row of cubicles on the other side. red with straw. A small area for storage of straw is placed next to the calving pen. 10 individual pens are used for both heifers and bull calves up to 8 weeks old. These are placed close to the milking parlour and the calving pens so it requires less work to feed milk. The individual pens are placed in a separate room limited with three solid walls and gates on the last side to avoid draught on the calves. Heifer calves from 8 weeks to 6 month are in two joint pens with deep litter and short non-littered feeding area. Young stock (heifers) above 6 month of age is housed in joint pens with cubicles. Cubicles for young stock are dimensioned in four different sizes, which are 200 kg, 300 kg, 400 kg and 500 kg. There are 11, 15, 12 and 10 stalls in weight each group. Manure from cows and young stock is handled as slurry in manure channels covered with slats. There are two single calving pens with the size of app. 12 m2 each. The pens are litte- Cubicles with low front rail. Individual pens for calves. 14 Cubicle housing for 60 dairy cows and young stock Man hole with boot wash Dry cows are placed in the same side as young stock. It is possible to split the 8 stalls for dry cows into two dry cow groups. There is at least one feeding place per animal on both side of the feeding alley so all animals can feed at one time. Milking is carried pout in a 2x7 herringbone milking parlour. There is adjustable floor in the operator pit in the milking parlour. The walking area between the two rows of cubicles serves as holding area. A double hoof bath is established in the return alley with pure water in the first bath and a disinfection agent in the next bath. The milk storage room is equipped with a 4000 litres bulk milk tank that can contain the milk from 2 days production from a high yielding herd. There is a separate room for technical equipment such as comp ressor, vacuum pump. In connection with the milk storage room, there is also a room for storage and one for equipment and a office. Area consumption The total building area is 1340 m2, and the feed alley requires 251 m2 of them. Herringbone milking parlor. 15 Example 2 Adjustable curtains. Net areas for resting and walking areas: • 8,5 m2 per lactating cow which gives a total of 517 m2 • 5,5 m2 per animal in average in the area for dry cows and young stock which gives a total of 367 m2 Floors All floors in feeding and walking areas are slatted floors. Slatted floors are with 120 millimetre wide walking surfaces and 35 millimetre wide slots. The cubicles have solid floor of concrete covered with mattreses. Equipment Self locking feeding barriers are placed by the lactating cows. The barriers are placed at an angle of 20° to vertical. Self locking feeding barriers are placed in the section with dry cows and the three groups with heifers dimensioned for 300500 kg. The younger groups have front barriers with adjustable neck rail. The lowest part of the feeding barrier is solid, to avoid feed being drawn into the pens. Open front gate in the calving pen. 16 Cubicle partitions ends 0.30 metres from the rear kerb of the cubicle to prevent the animals, walking in the alley behind the cubicles, from getting injured. The partitions are with a low front rail. There are gates in the feed barrier to all the groups of young stock, dry cows and calving pens. Water supply Water troughs are placed in the cross alleys by the dairy cow group. There are 6 troughs of 2.00 metres and with a width of 0.45 metres. Water troughs are placed next to the feeding barrier and between the groups in the side with dry cows and heifers. Water troughs there are 2.00 metres long, so 1.00 metre is available in each group. Feeding A total mixed ration is distributed by a tractor driven mixer wagon. Manure handling system Manure is handled as slurry in the slurry channels. It is a slurry circuit system with a propeller mixer situated outside the building in a mixer pit. The slurry pump is Cubicle housing for 60 dairy cows and young stock Building design and construction Water trough placed in the side partitions between two boxes. also situated in the pit. The slurry is mixed ones daily to keep it floating. Litter handling The stalls is littered daily with at least 0.3 kg of straw to keep them clean and dry. Ventilation The building is natural ventilated. In the sides there is adjustable curtains, and in the roof ridge there is an open roof ridge covered with light plates and air outlets in both side. Light The light in the whole housing is dimensioned to 100 lux at floor level, and can then manual be adjusted to 5 lux during the night. The penetration of natural light through the sides and roof will normally give appropriate working light during daylight. In the milking parlour, in the calving pens and in the individual boxes for calves the light is dimensioned to 200 lux. Tractor with TMR feed mixer. 17 Example 2 Building design and construction Load-bearing structure The load-bearing structure is divided into two main structures. The first is steel frames that support the roof. The steel frames are supported on spot foundations in both sides. The second part is the foundation that carries the load of the walls. Foundation Continuous strip foundation of concrete under external, internal and partition walls. To secure against penetration of moisture or water both from the ground and the housing it is necessary to make an 18 insulation of tarpaper laid in two layers on asphalt pitch. The foundation is protected against moisture penetration with a leak stopping agent on the outer side. Manure channels Slurry channels are made of 25 MPa concrete, at a depth of 120 centimetres. The sides and bottom are reinforced. The inside surface of all slurry channels is coated –the bottom as well as the sides – with a leak stopping agent. The slatted floors are prefabricated elements. Floors All floor constructions consist of a minimum of 150 mm non-capillary layer (to pre- Cubicle housing for 60 dairy cows and young stock Building design and construction vent capillary action) as well as 120 mm concrete 20-25 MPa. All floors are reinforced with steel mesh to prevent contraction cracks. Walls Both external walls and interior partition walls are made of 180 mm light concrete elements. The walls in the areas with animals consist of light concrete elements the first 1,2 metres above ground level and then adjustable curtains in a height of 2.0 metres. There are windows in the walls in the service rooms. Gables Both gables are made of 180 mm light concrete elements in the height of 3,20 met res. Trapezoid steal plates are used in the rest of the height up to the roof. Roof and ceiling The roof is covered with roofplates of fiber-cement and placed on purlins. In each side of the roof is one row of transparent plates to increase natural light penetration into the building. There is an insulated roof over the milking parlor and service areas. The inner surfaces of the building are plastered and edges are rounded off. 19 Example 2 20 Cubicle housing for 60 dairy cows and young stock Building design and construction 21 Example 2 22 Cubicle housing for 60 dairy cows and young stock Building design and construction Detail C 23 Example 2 Plan drawing (1:200) - slorry circuit system 24 Cubicle housing for 60 dairy cows and young stock Building design and construction 25
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