Sök:

Sökresultat:

173 Uppsatser om Artificial insemination - Sida 1 av 12

Artificiell Insemination (AI) hos hund : en sammanställning över användandet av seminering inom hundaveln i Sverige under åren 1995-2004

The use of Artificial insemination (A.I.) as an alternative to normal mating in dog breeding in Sweden are controlled by regulations from the Swedish Board of Agriculture and by ethical rules assigned by the Swedish Kennel Club. Only veterinarians, who have a specific certificate and are specially trained and educated, are allowed to perform inseminations in dogs. Each Artificial insemination must be documented and reported to the Swedish Kennel Club (SKK) which, on the behalf of the Swedish Board of Agriculture, yearly presents statistics concerning the use of A.I. in Sweden. The objective of this study was to illustrate the use of Artificial insemination in dog breeding in Sweden for the last decade, using the yearly reports from the Kennel Club during the period of 1995 to 2004.

Artificiell insemination av får

AbstractThe purpose of this bachelor thesis is to describe the use of Artificial insemination (AI) in sheep and discuss the possibilities for AI in Sweden. Male and female fertility, heat detection, semen handling and insemination techniques in sheep are described. Advantages and disadvantages of AI are discussed. In order to achieve genetic progress it is important with well planned and implemented breeding programs. The Swedish Sheep Recording Scheme and computer software from Elitlamm are the basis for sheep breeding in Sweden.

Artificiell insemination i dikobesättningar

Den vanligaste produktionsformen av nötkött sker i dikobesättningar, där kor och kvigor förväntas föda en kalv per år. I sådana besättningar är fertilitet hos djuren en viktig faktor, då förmågan att föda fram en kalv varje år påverkar inkomsten. I Sverige används naturlig betäckning i störst utsträckning, men ett alternativ är artificiell insemination. Syftet med detta arbete är att undersöka för- och nackdelar med artificiell insemination och varför det inte används i samma utsträckning inom dikobesättningar som hos mjölkkor, samt när det kan vara aktuellt att använda sig av. Den artificiella inseminationens påverkan på dräktighetsresultat varierar mycket i studierna, från 37 till 74 %, men det antyds att 50 % är ett gränsvärde där resultat över detta kan anses godtagbara. Ekonomiskt finns fördelar så som ökade kalvvikter och mindre förluster relaterat till kalvningssvårigheter, men nackdelar i form av ökade kostnader för veterinärtjänster och mediciner samt för arbete.

The use of artificial insemination in dairy farms in urban/peri-urban Kampala, Uganda : a study of knowledge, attitude and practices

Uganda is one country with fastest growing populations in the world and with more than 25% of the population living in poverty. There is a rapid rural urban migration with increasing demands for food for low income earners especially in these areas. One way to mitigate food insecurity is to increase milk and meat production efficiency, and thus reproductive performance of cows is crucial for good production. A well-documented strategy for improving dairy cow productivity through faster genetic improvement is to breed dairy cows using proven semen via Artificial insemination (AI). AI has been used in Uganda for over 60 years but only less than 10 %, a small population of the country?s herd has been bred that way. The aims were to study knowledge, attitude and practices factors influencing cow fertility results on dairy farms around Kampala using AI and to propose ways of promoting increased use of AI in Uganda.

Variation i fruktsamhet hos semingaltar

Artificial insemination (AI) has had a great influence on the development of pig production and is today widely practiced (Gerrit et al., 2005). With AI, genetic progress can at a short period of time be spread worldwide compared with using natural service and the best boars can be intensively used. This is also one of the biggest risks with AI; the impact of semen containing a genetic disease or contamination of pathogens can be enormous. Fortunately, it is a small risk of disease transmission due to many tests of the boars and the semen before use (Maes et al, 2008). It is important that the boars used for insemination have good breeding values along with good reproduction features and have good fertility results (Robinson et al., 2005).

Pneumatiska artificiella muskler : med hjälp av en robotarm

According to the study [1] several firefighters are killed in action each year. This happens naturally in various ways. One of the major factors is that firefighters often do not know how the environment looks like, for example that a building in an industrial area contains hazardous gas cylinders. Without a solution, fire-fighters will continue to die in duty. It is therefore important to solve this problem so that we can minimize the risks and save lives.The goal of this project was a control system for pneumatic artificial muscles.

Reproduktion och reproduktionsproblem hos taxtikar

Artificial insemination (AI) has had a great influence on the development of pig production and is today widely practiced (Gerrit et al., 2005). With AI, genetic progress can at a short period of time be spread worldwide compared with using natural service and the best boars can be intensively used. This is also one of the biggest risks with AI; the impact of semen containing a genetic disease or contamination of pathogens can be enormous. Fortunately, it is a small risk of disease transmission due to many tests of the boars and the semen before use (Maes et al, 2008). It is important that the boars used for insemination have good breeding values along with good reproduction features and have good fertility results (Robinson et al., 2005).

Föräldraskap, vad är det? : en studie där lesbiska föräldrar som fått barn genom insemination står i fokus

Syftet med vår uppsats var att visa föräldrabegreppets mångfacettering och vi exemplifierade föräldraskapet genom att studera lesbiska föräldrar som fått barn genom insemination. För att uppnå syftet gjordes både litteraturstudier och kvalitativa respondentintervjuer. Studien hade ett socialkonstruktivistiskt perspektiv, rättsligt baserade perspektiv och ett visst barnperspektiv som teoretiska utgångspunkter. Dessa nyttjades även som analysverktyg och för att utforska motsägelserna i vårt material användes ett dialektiskt analysverktyg. Materialet analyserades enligt en ad-hoc metod.

Statistisk analys av journalmaterial från två stuterier : en retrospektiv studie

Retrospective data from two stud farms, in this study named stud farm A and B, including 742 mares, was statistically analysed. Parameters included in the analysis were type of insemination, date of the first insemination, number of inseminations, the age of the mares, if the mares had a foal or not, foaling date, result of pregnancy examination (if it was done), twin pregnancy and treatments given to the mares. The pregnancy results and the treatments where compiled into a number of frequency tables in which the mares where arranged according to age, month of first insemination, foal or not and type of insemination. There was a significant difference in pregnancy result between the years at both stud farms (2001 better than 2002). At stud farm A, in year 2001, month (at start of insemination) significantly influenced the pregnancy result.

Analys av artificiella marktyper vid vatten med hjälp av GIS, Värmlands län 2007

On commission of the County administrative board in Värmland County a method was developed for analysis of the occurrence of artificial land use at lakes and watercourses. With artificial land use is meant land significantly affected by man. Two bases have been used to carry out the analysis. In one of the analysis the vegetation database and in the other GSD¹-Marktäckedata (land cover data) was used (this method has been used by County administrative board in Jönköping County).The analysis comprises all watercourses within Alsterälven river basin. The digital water bodies are created by the Swedish Meteorological and Hydrological Institute on the basis of GSD-Översiktskartan (general map).

Nedskrivningsprövning av goodwill ? ett verktyg för att jämna ut resultat?

År 2005 implementerades IFRS 3 och IAS 36 inom EU. Införandet innebär att företag årligen ska nedskrivningspröva goodwillvärdet istället för att linjärt skriva av posten under dess beräknade nyttjandeperiod. Nedskrivningsprövningen baseras på företagsledningens bedömningar om framtiden och flertalet studier har belyst att det nya regelverket lett till att goodwillposten utnyttjas opportunistiskt för att manipulera det rapporterade resultatet. I denna uppsats undersöks om det i en svensk kontext finns indikationer på att goodwillposten utnyttjas för artificial smoothing. Vi gör det genom att undersöka sambandet mellan goodwillintensitet och resultatvolatilitet och sambandet mellan onormalt stora vinster och goodwillnedskrivningar.Undersökningen visar att det föreligger ett signifikant negativt samband mellan goodwillintensitet och resultatvolatilitet och att det därmed finns indikationer på att goodwillposten utnyttjas för artificial smoothing.

Maybe, eventually, I'll be allowed to be a parent to my own child

The purpose of this essay is to examine how same-sex couples experience the second-parent adoption process. To assist us, we have used our questions: how do the couples describe their experiences of the adoption process? Which are the couples? stories about the experience of contact with the involved professionals? What are the opportunities and barriers for same-sex couples to start a family? How do the couples describe their experience of reactions from the community and society, and how do they think the future will look like for same-sex couples? This study has been achieved through a qualitative approach. The empirical data is based on seven semi-structured interviews with same-sex couples or pair members that want to or have had a second-parent adoption. The theory we have used for analyzing the results is phenomenology with focus on queer theory, heteronormativity, and power.

Miljö- och hälsorisker med konstgräsplaner

In Sweden today many municipalities and sport clubs chooses to build artificial turfs becauseof the increased period of using the turfs during the year and less maintenance requirementsthan for natural grass fields. What could be problematic with artificial turfs is the rubbergranules used as infill material in the turf matt. The rubber granules are often made fromrecycled tires, which may contain for the human health and the environment, harmful substances.This was the reason why the Swedish Chemicals Agency commissioned a statusreport in 2006 which, among other things, concluded that the environmental and health risksassociated with granules made from recycled tiers in artificial turf fields were small, but thatthere could be a local environmental hazard. The purpose and objective of the risk assessmentwas to identify how artificial turf plans granules can affect recipients in the area closeto the pitches and provide input to reduce the spread of metals and substances harmful forboth human health and the surrounding environment. The work was divided into three parts:(1) the construction of artificial turf pitches and their material content, the spread of granulatesoutside the fields and disposal of artificial turf pitches.

Glukokortikoiders inverkan på fertiliteten hos ston med kvarstående betäckningsinducerad endometrit

Kvarstående endometrit efter betäckning eller insemination, "perstistant mating-induced endometritis" (PMIE) har länge orsakat problem med fertiliteten hos ston och anses i vissa fall vara den största anledningen till infertilitet. Ett av de tydligaste tecknen på att ett sto drabbats av PMIE är att det finns ?2cm vätska i livmodern 6-24 timmar efter betäckning/insemination. Det inte har funnits några standardiserade behandlingsprotokoll för PMIE men nya studier har visat en markant ökning i dräktighetsfrekvensen när ston som identifierats som predisponerade för PMIE har behandlats med glukokortikoider innan betäckning/insemination. När ston med antingen tidigare oförklarad infertilitet eller tidigare symtom på PMIE behandlats med prednisolon innan insemination har dräktighetsprocenten ökat från 3% till 65% dräktighet samt från 0% till 64,5% dräktighet.

Kanske, eventuellt, får jag vara förälder till mitt eget barn

The purpose of this essay is to examine how same-sex couples experience the second-parent adoption process. To assist us, we have used our questions: how do the couples describe their experiences of the adoption process? Which are the couples? stories about the experience of contact with the involved professionals? What are the opportunities and barriers for same-sex couples to start a family? How do the couples describe their experience of reactions from the community and society, and how do they think the future will look like for same-sex couples? This study has been achieved through a qualitative approach. The empirical data is based on seven semi-structured interviews with same-sex couples or pair members that want to or have had a second-parent adoption. The theory we have used for analyzing the results is phenomenology with focus on queer theory, heteronormativity, and power.

1 Nästa sida ->