Trakealkollaps är relativt ovanligt förekommande hos hästar men är något vanligare hos småvuxna ponnyraser. Sjukdomen har ett progressivt förlopp och är ofta långt framskriden innan respirationssymtom som missljud, hosta och dyspné uppkommer. De tillgängliga behandlingsalternativen ger sällan tillfredsställande resultat och prognosen vid höggradig kollaps med grava symtom får anses som dålig. Syftet med den här studien var att undersöka om och i så fall i vilken grad trakealkollaps påverkar hästens användbarhet, detta gjordes genom att undersöka om det fanns någon skillnad i arbetstolerans och lungfunktion mellan en grupp friska shetlandsponnyer och en grupp shetlandsponnyer med trakealkollaps. Den friska gruppen bestod av tio ponnyer och gruppen med kollaps av fyra ponnyer, varav tre hade trakealkollaps av grad 3 och en av grad 2.

The evaluation of the function of the feeding of sheep herds is suggested to involve the work effort, the fulfilment of the nutrient needs of the sheep and the feed waste. Mechanisation of the feeding can be very simple or include high degrees of mechanisation. Three different farms, representing different levels of mechanisation are presented. Descriptions and analysis of the feeding systems including mechanisation, work effort and estimations of the feed waste are made on each farm. The herd with the most advanced feed mechanisation included a rolling feed band and mix wagon. The other farms were partly or little mechanised including ad lib feeding from big bales and manual distribution of hay and concentrates. The most mechanised farm was able to feed a large herd of sheep at a low work effort and little feed waste. However, the investment in machinery has to be weighed against the improved efficiency.

Fossil fuels are affecting our climate negatively and there is a limited amount of them in the world, which leads to the importance of finding alternative fuels. One alternative is biogas, which is produced though a digestion process of different organic materials in a biogasreactor. Organic substrate that comes from farms has the biggest potential to increase the production of biogas in Sweden. Primarily crops from farms, but also waste products like manure are of great importance.Today there is a calculated theoretical potential for biogasproduction of 14TWh per year, which is around ten times larger than Sweden?s production today.

Fossil fuels are affecting our climate negatively and there is a limited amount of them in the world, which leads to the importance of finding alternative fuels. One alternative is biogas, which is produced though a digestion process of different organic materials in a biogasreactor. Organic substrate that comes from farms has the biggest potential to increase the production of biogas in Sweden. Primarily crops from farms, but also waste products like manure are of great importance.Today there is a calculated theoretical potential for biogasproduction of 14TWh per year, which is around ten times larger than Sweden?s production today.

The purpose of this study was to find out if motion movements, e.g. number of lying bouts and lying time with a registered activity monitoring sensor can detect an impending calving and thereby be used as a measure and an indicator for an upcoming calving. For this, automatically step sensors were used and were attached to one of the cows? hind leg. The sensor registered the individual step and movement activity of the cow.

Knowledge about feed racks for feeding forages to horses is lacking. Racks for sheep and cows are sometimes used for horses. Feeding roughage on the ground, or feeding silage bales with the plastic and net still on, can bring on a lot of different problems. The opportunity to control the hygienic quality is small and feed losses can be high. The purpose of this experiment was to investigate how the eating behaviour and consumption of horses were influenced by feeding racks of different constructions. Feed losses and changes in chemical composition of the forage were also studied.

The purpose of this study was to examine whether urea could be an option as a nitrogen source for young cattle, the study was limited to risks related to feeding, growth and feed efficiency. Microbes in ruminants have the ability to convert nitrogen to protein, this has been highlighted by beef producers as they are in search of cheap protein feed resources. Urea can be a worthy source of nitrogen for growing young animals, because of its high nitrogen content and the low price. Studies have shown that the replacement of a portion of the total protein content by urea in diets with low content of crude protein, like corn silage, may improve animal growth and feed efficiency. Replacement of all the true protein with urea can result in reduced feed intake and microbial growth.

Glycerol is essential for the lipid metabolism of both plants and animals. Glycerol is formed in the rumen by hydrolysis of lipids from the feed. Glycerol is also a by-product from the production of biodiesel from rapeseed oil and other fat sources. Glycerol might be used as a dietary glucose precursor for dairy cows in similar ways as propylene glycol. Due to increased production of biodiesel more glycerol has been available to a lower price.

This study investigates a farm in Dalarna which includes 16 ha of farmland and 1, 7 ha of pasture. The purpose is to find out if it is possible to start an animal production in Dalarna. The study is set only to compare spring lamb production with nurse cow production. There are two buildings on the farm that can be used for this purpose. One is an old cowshed, and the other is an unused silo for silage with a roof on top. Both of the buildings are compared to every alternative in the calculations.

Corn is an important food and feed crop in the world, in Sweden it?s up till now grown on limited acreages mainly for silage. But I think it can get more important if you can grow it also for grain, because it?s a good animal feed for example, for life stock-, pigsand poultry. On of corns advantage is that it can produce the same amount of dry matter as for example wheat, barley and rise but with 25% less water. I will examine if it possible to grow corn for grain production in the south of Sweden.

SammanfattningMajsensilage blir allt vanligare i svenska foderstater och då är det viktigt att ha ett branäringsinnehåll och en god hygienisk kvalitet. Det kan uppnås genom att skörda vid rätttidpunkt samt att motverka värmegång i ensilaget efter öppning av silon med hjälp avtillsatsmedel vid skörd. Syftet med detta projekt var att studera effekt av mognadsstadium vidskörd och tillsatsmedel på näringsinnehåll, hygienisk kvalitet och lagringsstabilitet hosmajsensilage lagrat under olika tidsperioder.Under försöket skördades majsen vid tre olika mognadsstadier R4 degmognad (28 % ts), R5dentmognad (37 % ts) och R6 fysiologisk mognad (41 % ts) och lagrades i 28 respektive 110dagar. Vid ensilering av grönmassa, som lagrades i 28 dagar, tillsattes två ensileringsmedel,Kofasil Majs N (saltpreparat med natriumbenzoat och kaliumsorbat, 2 liter/ton grönmassa,Addcon Europe GmbH, Bonn, Tyskland) och ProMyr® XR680, (syrapreparat med myrsyra,propionsyra och formiat i lösning, 4 liter/ton grönmassa, Perstorp AB, Perstorp, Sverige),vilka jämfördes med en obehandlad kontroll. Vid 110 dagars lagring provades ytterligare etttillsatsmedel, Kofasil Life ?M? (bakteriepreparat med heterofermentativa mjölksyrabakterienLactobacillus buchneri, 1*105cfu/g grönmassa, Addcon Europe, GmbH, Bonn, Tyskland).Tillsatsmedlens doseringar är rekommenderade doser från tillverkarna.

Majsensilage blir allt vanligare i svenska foderstater och då är det viktigt att ha ett bra näringsinnehåll och en god hygienisk kvalitet. Det kan uppnås genom att skörda vid rätt tidpunkt samt att motverka värmegång i ensilaget efter öppning av silon med hjälp av tillsatsmedel vid skörd. Syftet med detta projekt var att studera effekt av mognadsstadium vid skörd och tillsatsmedel på näringsinnehåll, hygienisk kvalitet och lagringsstabilitet hos majsensilage lagrat under olika tidsperioder.Under försöket skördades majsen vid tre olika mognadsstadier R4 degmognad (28 % ts), R5 dentmognad (37 % ts) och R6 fysiologisk mognad (41 % ts) och lagrades i 28 respektive 110 dagar. Vid ensilering av grönmassa, som lagrades i 28 dagar, tillsattes två ensileringsmedel, Kofasil Majs N (saltpreparat med natriumbenzoat och kaliumsorbat, 2 liter/ton grönmassa, Addcon Europe GmbH, Bonn, Tyskland) och ProMyr® XR680, (syrapreparat med myrsyra, propionsyra och formiat i lösning, 4 liter/ton grönmassa, Perstorp AB, Perstorp, Sverige), vilka jämfördes med en obehandlad kontroll. Vid 110 dagars lagring provades ytterligare ett tillsatsmedel, Kofasil Life ?M? (bakteriepreparat med heterofermentativa mjölksyrabakterien Lactobacillus buchneri, 1*105cfu/g grönmassa, Addcon Europe, GmbH, Bonn, Tyskland).

The project was initiated by Medipharm which produce microbial inoculants which used as additives to preserve forage. The main goal was to test three inoculants to produce maize silege. The following Medipharm produced inoculants were tested, Milab 393, Lactisil Wolecrop II, Lactisil 300 2. An untreated control was included in the study. The trial was done at Swedish university of Agriculture and Science in Alnarp, Sweden. Eurostar was the cultivar of the maize and was grown on 20, 5 hectares.

The corn plant came to Europe with Christopher Columbus in the 14th century and have ever since bin cropped here, but corn haven?t bin very common in Scandinavia until recently. The mainly use for this crop silage but even corn for grain is cropped in Europe. Corn for grain is a common part of feed in beef and chicken farming. In Sweden corn for grain is pretty rare but almost 1000 hectares are used for this crop, Lantmännen Sverige is the biggest buyer of corn at the moment.

Weaning is a standard procedure at most studs, and the methods of weaning varies greatly. The method used at the stud in this particular study is supposed to decrease stress. The purpose of the study was to compare the behaviour of foals in group before and after stepwise removal of their mares. Standardbred foals with their mothers were kept in three different groups at pasture (12, 11 and 11 foals, respectively, mixed sexes). They had free access to silage and the foals were fed concentrate in a creep-feeding area. By the time the foals were 5 months old, the mares were stepwise removed from the pasture.