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41 Uppsatser om Laying hen - Sida 1 av 3

Tungmetaller i metabolismen hos värphöns och slaktkycklingar

Mussel meal is a potential source of protein, with a good composition of amino acids, for Laying hens and broiler chickens, and may replace the use of fish meal in organic poultry production. Lead and cadmium are heavy metals which occur in the environment and can be accumulated in mussels. When poultry are exposed to heavy metals, the metals are absorbed in the small intestine and distributed in the body in the form of ions, complexes or bound to proteins. In poultry, lead accumulates in bone tissue, liver and kidneys, while cadmium accumulates in liver and kidneys. Generally very low concentrations of these heavy metals occur in muscles of broilers which have been exposed to feed contaminated with cadmium or lead.

Produktionsbur som främjar hönors naturliga beteende

Today?s housing system for Laying hens has limitations for the hens natural behavior. Despite the current law of prevention of cruelty to animals, this might implicate health problems for the hens. This degree project is aiming to improve the situation for Laying hens in cage-systems. The aim with our project is to bring forward a draft of a cage that improves the welfare of Laying hens.

Styrd borrning eller konventionell schaktning : en jämförelse av två rörläggningsmetoder

This is a diploma thesis executed as a part of the examination of the educationalprogram Building engineer ? Construction management at Halmstad University. The aim of the thesis is to compare and evaluate conventional open-cut pipe-laying withhorizontal directional drilling. The thesis includes a comparison of the economic,environmental and time-based aspects of both methods and discusses which factorsthat determine the optimal choice of method.The study is mainly based on previous studies regarding the subject and oninterviews with professionals from the industry.A fictional project with five realistic cases of pipe-laying scenarios was compiled,sent to different companies for calculation, evaluated and compared. Our conclusionregarding when it?s suitable to use which method is entirely dependent on thespecific project.

Vaktelproduktion för ägg och kött

The aim of this study is to review the commercial quail production for eggs and meat in the world. Another aim is to review the potential for increased production. Globally the quail production is very small, except in China where it is the second largest poultry industry. The production globally is small despite the quail's rapid growth, early sexual maturity and its high feed efficiency. The quail is also used as a laboratory animal and can be reared to be released in hunting areas.

Performance of laying hens in a cognitive bias task : effect of time since change of environment

In the debate on Laying hen welfare, and specifically housing conditions, the main focushas been on physiological and behavioural measures. What is lacking is knowledge of howthe hen experiences the situation ? her state of mind.This study is an attempt to gain insight into the private mental states of former batteryhens. It uses a cognitive bias method based on spatial judgement, i.e. judgement of aambiguous stimulus placed spatially in between a reinforced and an unreinforced stimulus.This method has previously shown differences in judgement by animals in enriched versuspoor housing.

Effects of genotype, age and feed on the fat components of egg yolk

The aim of this study was to investigate if the hen?s genotype, age and diet affect fat components in egg yolk. The fat components measured were total fat content, phospholipids, cholesterol and the fatty acid profile. This trial involved 12 groups of Laying hens housed in 8-hen cages enriched with perches, dust baths and nests. The genotype Lohmann Selected Leghorn (LSL) and the genotype Lohmann Brown (LB)was used.

Bacterial contamination of eggshells in conventional cages and litter floor systems for laying hens in Jordan

In the country of Jordan, egg production is very important economically, but several bacte-ria are involved in food borne diseases transmitted from eggs or other poultry products. The most important are Salmonella spp., Campylobacter jejuni and Escherichia coli. In Jordan two different housing systems are used for hens in large scale egg production; con-ventional cages and litter floor systems. Eggs from four different farms were analysed and compared to see if a difference could be found regarding the presence of pathogenic bacte-ria on the egg surfaces between these two systems. Total number of aerobic bacteria was analysed, the presence of Salmonella spp., C.

BRA Metodik - Balanserad ruttanpassning för mjölkrundetåg i JIT-organiserade monteringsavsnitt

This thesis aspires to construct a routing optimization method customized for Volvo Powerstrain?s manufacturing plant in Skövde, Sweden. In order to enforce Volvo?s own understanding and control of there own organization, as well as optimize the utilization of the in-house tow trains, the BRO methodology where created. The methodology where created from observations of the currents working environment, analysis of order data as well as a comparison with two similar producing factories.

Effect of insoluble fibre enrichment on egg quality in laying hens

Studien var en del i ett större projekt som syftade till att undersöka hur värphöns påverkas beteendemässigt och nutritionellt av ökad konsumtion av olöslig fiber. I det nu aktuella projektet undersöktes hur ökat intag av olöslig fiber påverkar äggkvalitén. Fiberkällan utgjordes av halmpellets som antingen blandades i fodret med 3 % inblandning, alternativt utgjorde strömaterial för att undersöka strömaterialets betydelse som fiberkälla. Två olika hybrider ingick i försöket, 720 Lohmann Selected Leghorn (LSL) och 720 Lohmann Brown (LB), varav halva antalet av varje hybrid hölls i frigående system och andra hälften i inredda burar. Totalt insamlades och undersöktes 180 ägg från varje inhysningssystem då hönorna var 31-32 veckor gamla.

Fågelreproduktion med fokus på värphöns

Syftet med denna litteraturstudie är att beskriva fåglarnas reproduktion och hur den skiljer sig från däggdjurens. I studien har störst vikt lagts på värphöns men många aspekter som beskrivs gäller även för vilda fåglar. Reproduktionen beskrivs översiktligt för både värphöna och tupp. Reproduktionsorganen beskrivs anatomiskt, fysiologiskt och histologiskt samt en del om det endokrina systemet och dess påverkan på hönsens reproduktion ingår också. I uppsatsen beskrivs även hur ljuset kan påverka framförallt hönans äggläggningscykel. Slutsatsen av denna litteraturstudie är att fåglarnas reproduktionsorgan ser annorlunda ut och har flera funktioner som inte är analoga med däggdjurens, men det finns också vissa likheter.

Torkad eller gastät lagrad spannmål till värphöns : en fallstudie

The purpose with this study is to compare different systems of grain storage from a financial point of view. Grain that is supposed to be fed to Laying hens. The systems that were compared were different airtight storage of grain and a system of conventional storage. To make this case study I choose to compare four different systems. In the case study there was one system with bin drying of the grain, two systems with airtight storage of the grain and one system where you buy dried grain during the season. I made several of capital investment appraisal where I found the cost of each system, then I took the cost and divided it with the total grain use and calculated the cost for each kilogram of grain, and also the cost of the feed. Then I compared the cost from my case study with the cost of buying feed. All the systems except for one, gave a lower cost for the hen feed than buying feed from a dealer The best system, witch were bin drying lower the cost with about 80 000:- SEK.

EU:s svårföränderliga jordbrukspolitik - En studie om varför CAP är så svårföränderligt ur ett nyinstitutionalistiskt perspektiv

The European Union's long-term budget negotiations during the summer of 2005 were obstructed from being successful due to a quite fierceful debate about the future guidelines of the Common Agricultural Policy. A quarrel about money and who gets what, was the common answer as to why it took the European leaders six months to accept the budget, and quite rightfully. This essay, however, goes beneath those explanations and tries to see what other reasons there might be for such a phenomena.With a new institutionalistic approach this study seeks to see what underlying reasons for why an institution such as CAP is so resistant to change. With special attention to the new historical institutionalism and the rational choice institutionalism the study successfully shows that though the front laying reasons to the problems with the budget might have been economical, several other factors also affected the outcome of the budget negotiations.Structures, national identity and decisions taken when outlining the Common Agricultural Policy in the 1960's still affect the European union, its members and foremost of all, the Policy/institution itself..

Matematik i förskolan : Hur arbetar man med matematik i förskolan?

The word mathematics is often associated to addition, subtraction, division or multiplication. This is not the kind of mathematics that belongs to pre-school. In my essay I have chosen to write about how mathematics is used in pre-school. In the literature it is written that the best way of becoming familiar with mathematics, is to integrate it in the every day life but that there are educators that use traditional mathematics education in pre-school. The questions I would like to answer are:1.

Finansiering av djurstall :

I conducted this examinasions work because I want to find out how loan to farmes are working and more specific towards younger farmers. What you have to think about before you go to the bank and what the banks are thinking about lending money to farmers. This work is based on an investment plan propasal for 20 000 Laying hens on a farm in the Kalmar area. The investment plan propasals have two diffrent alternetives, one farm on 25 hectares and one on 50 hectares. I have chosen this becouse I wanted to study how the diffrent sizes of farms are changing the banks thoughts about lending money. These investment plan propasals have included four banks with questionnaire and deep interview.

Läsning i Läsandets kultur ? En studie om synen på läsning och bibliotekariernas läsfrämjande arbete i Litteraturutredningen 2012

The purpose of this thesis is to examine the view on reading and reading promotion in the Culture of Reading (SOU 2012:65), based on three different approaches to reading and reading promotion; the pragmatic, the emancipatory and the traditionalistic. The thesis is based on the following questions; which view on reading can be seen in the Culture of Reading and which view on librarians? reading promotion can be seen in the Culture of Reading. To answer these questions, I am going to apply the aforementioned approaches on the Culture of Reading. The Culture of Reading is an official report from the Swedish government and parts of it will be subject to a qualitative content analysis.

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