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Visar resultat 1 - 5 av 21 uppsatser som matchar ovanstående sökkriterier.
1. Analysis of relatedness and genetic diversity in Swedish sheep breeds using medium density (50K) SNP data
Master-uppsats, SLU/Dept. of Animal Breeding and GeneticsSammanfattning : The local Swedish sheep breeds belong to a group of sheep breeds known as North European short-tailed sheep breeds. Evaluation of genetic diversity, relatedness, and population structure of local breeds offers crucial metrics to prevent inbreeding depression, genetic erosion, and crossbreeding between locally adapted and exotic sheep breeds since these occurrences can have detrimental effects and ultimately lead to extinction. LÄS MER
2. How does a beef x dairy calving affect the dairy cow’s following lactation period?
Master-uppsats, SLU/Dept. of Animal Breeding and GeneticsSammanfattning : In dairy x beef breeding, much of the research has focused on the performance of the crossbred calves, yet little focus has been given to the subsequent performance of the cow itself. This study aimed to evaluate the performance of dairy cows for milk yield, fertility, and survival traits after giving birth to crossbred calves, and to compare this to the performance of dairy cows after giving birth to purebred dairy calves. LÄS MER
3. Comparing crossbred and purebred dairy cows for economically important traits
Master-uppsats, SLU/Dept. of Animal Breeding and GeneticsSammanfattning : The use of dairy x dairy crossbreeding as a breeding strategy has increased in Sweden, which has led to an increase of Brown Swiss, Jersey and Montbéliarde crosses. Multiple studies have been done on Montbéliarde and Jersey crossbreds in the USA but to our knowledge, no such study has been done on Swedish data. LÄS MER
4. The ethical price for dairy
Master-uppsats, SLU/Dept. of Animal Environment and HealthSammanfattning : In the 21st century people in modern society within Europe are used to go to a supermarket to buy groceries of daily need. Everything is easily available and affordable and barely anyone is aware of the production of their consumed goods, their origin and unpleasant side effects. LÄS MER
5. Hybrid walnut : results from a five year field trial in southwest Sweden 2015-2020
Master-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : A crossbreeding between american black walnut and Persian walnut lead to the development of a hybrid walnut (Juglans x intermedia). In a field trial from southwest Sweden have been tested the impact of different levels of nurse trees, fertilization and weed control on the early growth of two hybrid walnut varieties: NG23 and NG38. LÄS MER
