744 research outputs found

    Exercise yards for dairy cows

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    The required area per cow depends on the use of the exercise yard. If all the cows are forced to go out at a certain time and if they are fed in there, an area between 5 and 10 m² per cow is needed. But if there is no feeding and the cows have free access to the yard only 4-5 m² per cow is needed. It is recommended to design the yard so that the area covered with soft material can be blockaded when ever it gets too wet. The design of sloping has to be very careful. The laboratory tests have shown that with filters consisting of straw, peat or woodchips it is possible to significantly lower the nutrient content of runoff waters

    Jauhatustyön järjestelyjä ja kustannuksia

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    Exercise yards in Finland - structures and environmental impact

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    Two exercise yards have been designed, constructed and monitored. Samples from the runoff water have been taken regularly, and their nutrient concentrations(nitrogen, phosphor), total solids, pH, total chemical oxygen demand and hygienic quality have been analysed. The behaviour of animals has been observed

    Tuotantorakennusten alapohjia ja piha-alueiden päällysrakenteita

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    vokMyynti VAKOLA (09) 224 251. Yksikön huom.: Kirjast

    Pidä silmällä pihattojen ritiläpalkkeja

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    Suomessa vanhimmat pihatot ovat runsaat 20 vuotta vanhoja. Niiden ritiläpalkit alkavat vaurioitua jo 10 käyttövuoden jälkeen. Vuosina 1989-1999 maassamme sattui noin 60 tapaturmaa, jotka johtuivat ritiläpalkkien rikkoontumisesta. Ne pitäisi tutkia säännöllisesti, jotta vältytään ikäviltä onnettomuuksilta.vo

    Betonit ja muovit navetan lattiamateriaaleina

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    Lietelannan ilmastus

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    Nimekkeen selvennys: Aeration of liquid manure.vo

    Concrete and plastic as floor materials in barns

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    vokMyynti VAKOLA (09) 224 251Concrete and plastic as floor material in barns; Betong- och plastsorter med olika bindemedel som golvmaterial i ladugårda

    Rehtijärven keinokosteikko

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