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450 Uppsatser om Liquid feeding - Sida 15 av 30
Lönsamheten vid nystart av slaktsvinsproduktion : en fallstudie
I have done a case-study about building a new stable for slaughter pigs at a farm close to Kalmar. The farm is able to supply the breeding with cereals and it has enough area to
spread the manure on. The most important factors to gain profit, is the cost for building
the stable, the price of the feeding-stuff and the growth of the pigs. The discount from
the slaughter-house was less important than I thought from the beginning, and it?s a
factor that is hard to influence.
With the new production of slaughter-pig and cattle that already exist on the farm, the
farm will get a well-functioned rotation of crops with lye and autumn rape as
interruption-crop.
Registrering och avel för brunstvisningsförmåga hos mjölkkor
Dairy farmers using artificial insemination (AI) are dependent on effective oestrus detection. In Sweden, AI is used for a majority of all dairy cows and oestrus synchronisation with hormones is not allowed. There are reports of declining ability to express oestrus with higher levels of milk production. This makes oestrus detection more difficult. Several aids for oestrus detection have been developed, for instance pedometers and mounting detectors.
Tillverkning av mikronålar för medicinsk tillämpning
Transdermal drug delivery, besides painfulinjections with syringes, has long been associatedwith small size particle pharmaceuticals, which candiffuse through the skin. This method of drugadministration has only been applicable on a smallnumber of drugs, where active molecules are smalland delivery time should or can be long.Other drug delivery options are oral administrationand injection with hypodermic needles (ordinaryhospital syringes). In oral administration thestomach and liver tend to dissolve the drug and theeffect becomes more difficult to anticipate, anddrug delivery rates difficult to control. Hypodermicneedles are used as a mean of drug injectiondirectly into the bloodstream. This method ispainful and risks infection due to tissue damageand skin penetration.One way to get a painless non-damaging techniquewith high delivery rate that still can delivery largemolecules is to manufacture an array of microscopichollow needles and equip them with a pumping unitthat delivers the correct amount of drugs.This thesis shows the technique and possibility ofmanufacture micromachined needles using low costtechniques of Ion Track Technology (radiation ofheavy ions creates porous materials), electrolessdeposition (non-current activated wet chemistrymethod of depositing metal) and electroplating.
Itrakonazol till häst : en farmakokinetisk möjlighet?
Itraconazole is a third generation azol, a fungicide which acts by inhibiting ergerosterol synthesis in the fungal cell membrane, and thereby disturbing fungal regeneration. It has proven to be less toxic, to have a broader spectrum of activity and to be more potent than its predecessor ketoconazole. Itraconazole is only available in therapheutics approved for human use. Pharmacokinetic studies has been performed in humans, dogs, cats and laboratory animals. Although itraconazole has been used tentatively with good effect against fungal infections in horses, no pharmacokinetic studies have yet been done.
Kalvens beteende i olika uppfödningssystem :
The purpose of this literature review was to investigate how the rearing systems influence the behaviour of dairy calves. Calves are social animals that form groups within the herd where play and social licking between calves are important social activities. Suckling is a complex behaviour and essential for the calf's survival. In the modern rearing systems the calf is usually separated from its mother soon after birth. Calves are then kept in individual pens, group pens or, more rarely, with a foster cow.
Safe retrieval of nutrients to improve food security
Safe retrieval of nutrients from human excreta to fertilize crops in order to gain adequate yields will increase food security and sustainability in agriculture areas with nutrient-poor fields. Safe and nutritious food will meet the dietary needs of the individual which promotes public health and the ability of an active life. Human excreta should be considered as a resource instead of being assumed as waste. Human faeces and urine is excellent fertilizers which may close the nutrient loop if utilized properly. However, sanitation of the excreta is required to prevent disease transmission by reducing the content of gastrointestinal pathogens such as bacteria, viruses and parasites.
The objective of this study was to in small scale evaluate the sanitation in a combined liquid compost and urea treatment by monitor the inactivation of bacteria and viruses at the combination three start temperatures, 45, 40 and 35 °C, and three additions of urea, 0.5, 0.75 and 1 % and reference, 0 % urea addition.
Svansbitning hos gris relaterat till individuell tillväxt och ras :
The purpose with this study was to find out if tailbiting pigs have a higher or lower daily weight gain than non-tailbiting pigs in the same pen before tailbitingbehaviour occur. The purpose was also to compare the occurrence of tailbiting between different breeds (Swedish Landrace, Yorkshire and Hampshire). Tailbiting among pigs has been a problem for pigfarmers a long time. Tailbiting means reduced animal welfare for the pig and economical loss for the farmer. The results of this study are based on statistical analyses.
Bioactive peptides in long-time ripened open texture semi-hard cheese
Bovine milk is an excellent source of bioactive peptides. The bioactive peptides are in an inactive state in the protein and are released during enzymatic activity, e.g. during cheese ripening. Specific properties of bioactive peptides from ripened cheese has been reported, e.g. antihypertensive, antioxidative, antimicrobial, immunomodulatory and mineral binding.
Teknik för biogasanvändning
This thesis is made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg?s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the possibilities to enrich, upgrade biogas. The use of methane rich gases like biogas and natural gas is today low in Sweden compared to major parts of the world.
Simultan kvantifiering av metylmalonsyra och total homocystein : En kombinationsmetod baserad på hydrofil interaktion vätskekromatografi och elektrospray jonisationsmasspektrometri
Endometrios, en sjukdom med symtom som smärtor eller blödningar i samband med menstruation, börjar ofta i tonåren men diagnostiseras inte förrän flera år senare. Kvinnorna med denna diagnos beskriver ofta att de inte fått förståelse för sina problem under tonåren. Sjukdomen kan innebära stora besvär för den drabbade och följder på det fysiska, psykiska och sociala planet kan ses. Syftet var att studera hur unga kvinnor med endometriossymtom upplevde skolsköterskans stöd under högstadie- och gymnasietiden, för att kunna påverka deras livskvalitet. Via Svenska endometriosföreningens ungdomssektion i Sverige gjordes en kvantitativ undersökning med kvalitativt inslag. Ett frågeformulär skickades ut till föreningens 59 medlemmar, 24 kvinnor svarade. Resultatet visade att några få kvinnor var nöjda med den hjälp de fått under skoltiden men de flesta kvinnorna uttryckte att de saknade kunskap, stöd och förståelse från skolsköterskan vilket ibland gav ett icke tillfredsställande bemötande.
Effekten av suggans näringsstatus på fostertillväxt och smågrisöverlevnad
The pig industry suffers economical loss due to stillbirths, piglet mortality and low birth weight. This is due to breeding programs that have resulted in larger litters. It has been suggested that these problems are due to the metabolic state of the sow during gestation and the fact that she might not be able to supply her foetuses with enough nutrients for survival and a high and even birth weight. A lot of research has been done to investigate whether body weight and back fat thickness of the sow has any impact on her reproductive traits and if there are any special feed components that improve reproduction. Fibers and unsaturated fatty acids have a positive impact on reproductive traits as long as the sow is fed a sufficient amount of energy and protein during gestation and lactation.
Om sättet att tillhopa gå, en kvalitativ studie om ungdomars tankar kring sex och relationer
Young people of today have a much wider access to information on sex and relationships, and they receive this information from a variety of different sources. This information can sometimes paint a diverse and inconsistent picture. School constitutes one of these sources, and one of the few places were young people can discuss and reflect on these issues together with their peers as well as adults. The purpose of this essay is to gain insight on what adolescents between the age of 15 to 18 think about sex and relationships and their thoughts about sex education in school. It?s a qualitative study based on discussions with adolescents divided in four focus groups, two groups of girls and two groups of boys.
Comparison of four transport systems for enetric pathogens
ABSTRACT: Commercial swab transport systems are used for collection and transporting of fecal and other microbiological samples. This system must maintain viability and contribute to survival of microorganisms during transport to the laboratory. Four swab transport systems have been compared, eSwab, ?- Transwab and fecalSwab, all three with flocked swabs, and Copan Venturi Transystem with rayon swabs. The study followed the recommendations from the Clinical Laboratory Standard Institute; document M40-A for recovery of Samonella, Shigella, Yersinia and Neisseria gonorrhoeae after storage for 0, 6, 24, 48 and 72 h at room- (22-25°C) and refrigerated (2-8ºC) temperature.
KOGNITIV PROBLEMLÖSNING UNDER STRESS : PÅVERKAR FYSIOLOGISK AROUSAL PRESTATIONEN?
Förmågan att prestera under akut eller kraftig stress är en förutsättning för en del yrken. Forskningsresultaten gällande hur stress påverkar prestation pekar åt olika håll. Denna studie undersökte sambandet mellan fysiologisk arousal och kognitiv problemlösningsförmåga under stress. Trettiotvå polisstudenter testades på Ravens test av flytande intelligens APM set II både före och efter att antingen ha sprungit i tjugo minuter eller haft en självskyddslektion på ca fyrtio minuter. Resultaten från en mixed ANOVA för beroende mätningar visade på en signifikant interaktionseffekt (F (30) = 6,547, p < 0,05) ? en ökning i prestationen hos självskyddsgruppen med arton procent och en minskning med femton procent hos löpningsgruppen.
Butorfanol till get : farmakokinetik efter subkutan injektion
Today there are no analgesic drugs approved to be used in goats. Drugs approved for use in other species are consequently being used without knowing the pharmacokinetics of these drugs in goats. The purpose of this study was to investigate the pharmacokinetics of the opioid butorphanol when given subcutaneously in goats. Subcutaneous administration might extend the half-life compared to intravenous or intramuscular administration. Eight clinically healthy, non-pregnant 6 months old female goats were used.