When rubber equipment in a milking system ages, physical and chemical deterioration occurs and cracks, crevices, as well as deposits of organic and inorganic material is formed on the surface. Bacterial colonization can accumulate, especially on ageing rubber equipment and if the cleaning procedure is not functioning properly. Formation of biofilm in milking equipment could in turn cause bacterial contamination of bulk tank milk. ATP bioluminescence is a fast and easy way to determine the hygienic status of a surface based on its ATP content, and results are given in relative light units (RLU). The method measures both bacterial contamination as well as residues from other organic material.

Infection with Parascaris equorum is common among young horses in Sweden as well as in the rest of the world. The parasite has a direct lifecycle and reproduces in the small intestine. The eggs are passed out with faeces and become infective after approximately two weeks. The horses get infected when they ingest eggs that are dispersed in the environment. The symptoms seen in horses usually include retarded growth and loss of weight.

 AbstractThis study is performed by studying seven livestock businesses in the agricultural sector. The focus of the essay has been put on the structures that limit and enable the lives of the farmers in this study. One of these major structures that affect everyday life is the gender structure and to this day the housewife role exists where the women are responsible for the home, family and domestic pets while the men are responsible for the production, machinery and the heavier tasks on the farm. This is grounded in the history and the development that agriculture has gone through, but also in the strong patriarchal power structure that exists in this industry. In this essay I also show how the life form analysis of Liselotte Jakobsen and the independent life form can not be fully applied to the farmer as he is not completely independent in his work.

Inledning Implantatbehandlingar har blivit allt vanligare och material som associeras med implantat är oftast dentalt titan och dentala keramer. Även kompositmaterial förknippas ibland med implantat. Det är inte helt ovanligt att kompositmaterial förekommer vid submukösa implantatbehandlingar och få studier är hittills gjorda på kompositmaterials cytotoxiska påverkan på omkringliggande vävnad. Material och metod Sammanlagt tillverkades 24 stycken provkroppar till studien av två kompositmaterial (Crea.lign och SinfonyTM) och ett fältspatsporslin (Noritake). Tre provkroppar av varje material ytanalyserades med hjälp av optisk interferometri.

The objective of this thesis was to get more knowledge about how to design a dairy farm reducing the working hours and the work tasks whit high work load. I will try to reduce the working hours and the tasks whit high work load on my own farm witch I am about inherit. Today, the old stanchion barn has room for about 60 cows and 74 young cattle and need two men to run it every day. The total acre is 188 hectare, 100 hectare forest, 65 hectare farmlands and 23 hectare natural pasture. I have studied two solutions. In the first solution, I will use my old barn for young cattle and build a new barn for the cows.

Problems with wild boars are increasing in Sweden and some people argue that the wild boar population must decrease. This is mostly the opinion by farmers, while the hunters want more wild boars in Sweden. Today the population is the strongest in the south of Sweden and in the eastern parts of the country. However the population is growing stronger in other parts of Sweden as well. The population origins from these areas where they escaped from pens around 1970.

The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important process that we need to understand in order to possibly counteract the negative effects of mercury in the environment. The seasonal dynamics of mercury biogeochemistry is likely of great importance for the accumulation of MeHg in the aquatic food web. In thesis the chemical speciation and transformations of Hg and MeHg in bottom waters and sediments is followed in Ängessjön, a small lake located on the east coast in the middle of Sweden. The lake is not directly affected by any industrial pollution and concentrations of Hg in the sediment reflect the atmospheric deposition in this area, as well as processes taking place along the hydrological pathways from soil to lake. Samples from sediment, bottom- and streamwater were collected in average every second month during the period Feb.

Swedish goats are mainly held for cheese production and therefore, both milk quality and composition are of great importance for dairymen. Today, only few data exists on milk composition from Swedish dairy goats and the casein content is still unknown. One way to reduce the work load for goat farmers and increase animal welfare can be to keep goats and kids together for longer periods. The aims of this study were to investigate how milk yield and composition were affected when kids suckled their dams during 8 weeks, and to measure the casein content on farm level by a mid-infrared spectroscopy method, previously calibrated for goat milk. Lactating goats were kept in two different MIX- systems where the dams are both suckled and milked.

The purpuse with this work is to see if there is a possibility to buy a farm with a low amount of own capital. We have been doing budgets for five farms with different kind of productions. Some of the farms in this work are possible to buy with a low amount of capital but if you start without any money you will run into problems with the bank. The bank is not very pleased with fully financed projects; they would recommend an own capital of at least 10-20%. The farms with the best budgets were farms with animals..

Today cultivation of cereal in Sweden has high costs for establishment in relation to the rest of the world, and if this cultivation will be able to continue, the farmers have to control their costs. It is important to see all costs, not the maximum harvest achieved, but the net result. All farmers have different conditions with respect to soil, direction of the farm and were the farm is located geographically. With the right knowledge and ambitions, we think most farmers could change to reduced tillage. In this paper we have tried to find out if reduced tillage is an alternative for farmers.

There have been significant changes in the agricultural sector during the past 20 years (Jordbruksverket, 2008). The development of today is towards deregulation and adaption to global market conditions. As farmers try to adapt to the changed and more competitive market conditions investments are often necessary (LRF Konsult et al, 2012). Loans to agriculture and forestry businesses have increased to record levels and debt has doubled over the past years. The financial turbulence of the past years has contributed to an increase of the meaningfulness and willingness of the banks to be able to understand and handle risks associated with agriculture and forestry (Breiding, 2010).

 AbstractThis study is performed by studying seven livestock businesses in the agricultural sector. The focus of the essay has been put on the structures that limit and enable the lives of the farmers in this study. One of these major structures that affect everyday life is the gender structure and to this day the housewife role exists where the women are responsible for the home, family and domestic pets while the men are responsible for the production, machinery and the heavier tasks on the farm. This is grounded in the history and the development that agriculture has gone through, but also in the strong patriarchal power structure that exists in this industry. In this essay I also show how the life form analysis of Liselotte Jakobsen and the independent life form can not be fully applied to the farmer as he is not completely independent in his work.

Biogas is an expanding sector within the broad field of agriculture and animal production. Small-scale biogas offers local combined power and heating production and the substrate is transformed into high-quality biological fertilizer. This bachelor thesis focuses on a pig farm in south-western Sweden, where biogas is produced from pig manure, evaluates and suggests ways of optimizing the process and investigates whether investing in an upgrading plant would be a feasible and more cost-efficient option. The results show that the biogas plant is working well, although the production differs from the original plans. This shows in turn that planning and examining the basic conditions before making the investment is of great importance, as well as monitoring and keeping detailed statistics of the running process.

During the period 1905 to 1940 it was possible to get a loan from the state to buy land and build a small farm or a house in rural areas. This loan act and its effects have been studied earlier in different ways, but never as a total study for a geographic region. The region Malmöhus Län has been chosen. The purpose of this paper is to study in which parts of the area loans were taken and who sold the land that was used for these purposes. Earlier studies have looked at a larger geographical area for some specific years.

AbstractPrevious studies have shown that wild smolt have 2.5-4.5 times higher survival rate than smolt grown in culture and that starved reared smolt behave more like wild born smolt. The purpose of this project was to study whether there are differences in migration patterns and survival during migration to the coast between wild and reared smolt and between different types of reared smolt.In 2009, 25 smolts in three different groups were tagged with acoustic transmitters: Wild Born, conventionally reared 2-year and 1 ?year old smolt. For the 2010 trial there was also added a group of reared 2 ?year old smolt that were starved before release.