Oestrus in dairy cattle has changed over the last decades, the duration has decreased and the intensity of oestrus has declined. A possible explanation can be their high and increasing milk production. Heifers ability to show oestrus is probably not affected to the same extent. The aim of this study was to estimate and compare oestrus duration and strength in heifers of the Swedish Red and Holstein breeds. Standing oestrus has been the primary oestrus sign during many years.

Saab Component Maintenance in Linköping, Sweden, offers maintenance, repair andoverhaul (MRO) services for civilian and military aircraft components. Lately, thedepartment has struggled with slow throughput rates, despite various counteractingattempts. Studies show, that large parts of the delays derive from the logisticsdepartment where goods arrive and dispatch. Therefore, Saab wants to carry out anextensive analysis of the department in order to further investigate what is causing itsslow throughput rates.The thesis begins with extensive mapping over Component Maintenances whole valuestream to find out how departments interact with each other and which roleindividual departments have in the total supply chain. Out of 13 000 different partnumbers, components were divided into five product families.

Investmentföretag har funnits sedan urminnes tider men har under senare år ofta fått stå tillbaka som investeringsalternativ till fördel för aktiefonder. Detta är lite motsägelsefullt då svenska investmentföretagen historiskt har haft en högre avkastning än den svenska aktiefondförvaltaren. Större delen av forskningen kring investmentföretag har fokuserat på substansrabatten. Vi fann väldigt få studier som berört investmentföretagens risktagande, speciellt ur ett portföljperspektiv. För att underlätta för den individuella investeraren ville vi använda ett riskmått som är lätt att förstå.

The interaction between the driver, the car and the road is essential for the road safety. This case study focuses on the road condition and its effect regarding road safety issues. By studying and isolating the road condition aspect and its contributing role to the accident occurrence, the aim is to explore their relationship, as well as highlight the road parameters that are commonly associated with accident occurrence. This result will be used to develop and increase awareness of the impact of poor road alignment and poor road surface conditions on traffic safety, in order to prevent these accidents from occurring. The road parameters chosen for this study include side friction, cross slope and rut bottom cross slope, road texture, curvature, drainage gradient and rutting.The case study was limited to lv 360 in Va?sterbotten, where all accidents with an unclear cause of the accident were studied, between 2003 and 2012 were carefully studied and assessed based on the condition of the road at the time of the accident.

Due to excess precipitation that cause runoff, all soils in Sweden naturally leaches nitrogen.High leaching from arable land is an environmental problem when the runoff reacheswaters. In the international agreement, Baltic Sea Action Plan, the aim is to reduce therunoff of nutrients. Sweden has agreed to reduce its load of e.g. nitrogen to the Baltic Sea.One of the proposed measures is an increased use of site-specific N-fertilization, which hasbeen shown to increase nitrogen use efficiency and therefore also reduce the nitrogen runoff.Either yields are increased with the same total amount of nitrogen, or the total quantityof nitrogen is reduced with preserved yield levels, which is profitable for the farmers.The dynamics of nitrogen leaching differs between top dressing applications above orbelow the economical optimum. There is a consensus about a difference in the dynamics,but not about its magnitude.

The globalization has increased the trade between different places and countries. Products are now available from all over the world, but this requires transports that have consequences in the environment as well as the economy. New professions are creates that do formality, organize, administrate and implement other businesses transports. Their operations are between the business and customer and they are called logistics companies. The purpose of this report was to study third-party logistics and why more and more companies use this logistics services.

Today?s forest managers implement a large number of methods to increase the amount of dead wood in Swedish forests. They use everything from high cutting of trees to girdling trees and burning forests. However, implementation of these measures without proper knowledge of their consequences is a common problem. This study has been performed to increase knowledge about two of these measures, girdling and high cutting, and how these actions affect the number of wood-living insects living on dead trees.

Fieldstudys on 22 farms (23 silos) to study relationships between the actual particle size of the maize silage and the theoretical length of cut. The measure of theoretical length of cut were stated by the farmers and not measured by us. Particle size of maize silage was determined using the New Penn State Forage Particle Separator. SLU Skara made a special sieve for us, that had larger holes than de original sieves. The samples were shaken after instructions and then the material was weighted. We have also been taking out samples for microbiological analyses from the silos on 13 of the farms.

Botswanas ekonomiska tillväxt utgör ett sällsynt exempel på ett afrikanskt land som har lyckats använda sina naturtillgångar till att driva på en ekonomisk utveckling och samtidigt minimerat effekterna av den så kallade Holländska sjukan (HS). HS är ett ekonomiskt fenomen som går ut på att en växande sektor som baseras på naturtillgångar skadar landets tillverkningssektor och leder därmed till en indirekt de-industrialisering. Botswanas diamantindustri står för drygt 35% av BNP:n och hela 75% av exportintäkterna vilket gör att landet har en mineralbaserad ekonomi. Detta faktum har gjort landet väldigt intressant för forskning. Aktuell forskning har med hjälp av ekonometriska metoder visat att landets tillverkningssektor har undvikit eller drabbats minimalt av de effekter som HS utgör.

Intramuscular injections to cats can generate strong reactions in some individuals while reactions of the same extent, according to the author, not always are recognized when using the subcutaneous route. The reactions are probably caused by fear, stress and/or pain. When the injection can generate pain one has to take that into account, which can be a limitation in treatment. It is well known that injections generate pain, but knowledge about the cause and processes of the injection-associated pain is limited. This is mainly due to the difficulty in finding objects to study pain on, high cost of use of laboratory animals and difficulty to obtain objective measurements. Although there is evidence that there may be a local muscle injury by intramuscular injection, it is not always that the extent of damage is related to the pain experienced. Facts about the causes of injection-associated pain have been studied in a literature review.

Optimization of soil tillage and crop rotation is important in many aspects, but particularly in maximizing profit margins. Since the economic outcome is usually decisive, it can be interesting to study different combinations of soil tillage systems and crop rotations in order to identify the maximum economic outcome. How a crop functions in a particular tillage system determines whether it is profitable to grow that crop. Different tillage systems affect the soil and its processes in different ways. Reduced tillage often works best on weak-structured heavy clays and on silty clays.

The thesis has been written as a part of the Bachelor degree in Industrial engineering and management at the School of Engineering in Jönköping. The work is focused on the part of Husqvarna AB?s supply chain that is associated with the lorry transports to Italy. Husqvarna AB has approximately ten Italian customers, whose delivery patterns have been studied from January 2007 to July 2008. Some of the customers have a low delivery frequency and small amounts of goods that they therefore have not been fully analyzed in this report.

Background: Investors have several options to choose from when the goal is to achieve the highest yield at the lowest cost and risk. Stocks are a common investment options, but is also associated with risks. Portfolios are usually constructed with several different assets to reduce the unsystematic risk of investment. Funds are similar to composite stock portfolios, the big difference is that they dealt with in their entirety and investors may not affect the fund's content. The problem remains that whether you choose stocks or mutual funds there is still uncertainty as to how the future will unfold.

When single-family lots are valued for development of new residential areas,the valuation is influenced by several factors. The valuation is a matter ofdefinition that varies according to its interpreter. Previous research conductedin other countries, has identified a number of value-influencing factors. Thesefactors are the basis for this study.The study's purpose is to highlight the value-influencing factors thatcustomers value and are looking for in the choice of single-family lots. Thestudy also seeks to determine if there is an unknown difference between howprofessionals and clients value single-family lots.The study showed that the value factors considered important for customersand also professionals are consistent and applicable with the factors reportedfrom previous research.

Abstract One of the leading causes of food borne infections in the world is due to Salmonella by con-suming poultry products including eggs and meat. According to US Food and Drug Admin-istration (2009), 2 to 4 million cases of Salmonellosis in humans occur every year only in US. Salmonella causes wide range of diseases with enteric and typhoid fever, food poisoning, di-arrhea and gastro-enteritis. Many serotypes of Salmonella do not have host specificity and cause disease in all kinds of animals and humans. Salmonella has capability to modify accord-ing to the changing environment and it can develop resistance against routine elimination practices of sanitation, chemical treatments and antibacterial drugs. Newly established poultry industries in Pakistan are confronting various infectious diseases including Salmonellosis while in Sweden Salmonella prevalence in animal products con-sumed for humans is extremely low.