Uppsatser om production traits
39 uppsatser · sida 1 av 3
Masteruppsats · SLU
… breed group effect for several traits included in the Nordic breeding goals: production, fertility, udder health, calving performance, survival and other diseases. Breeding within the Holstein dairy breed has earlier been focused on increased milk production and conformation …
Masteruppsats · SLU
… often argued that longevity has been decreasing due to a strong selection for production traits in dairy cattle.The aims of this study were to find correlations between different longevity evaluations and between different estimates on longevity and other traits in the Nordic …
Kandidatuppsats · SLU
There are several factors influencing the profitability of production with sheep. Two of the most important factors are ewe fertility and lamb survival. Also growth capacity of the lambs is important. This paper aims to review correlations between the ewe’s fertility and …
Kandidatuppsats · SLU
… years and they have large economic importance for the farmers. Seasonally reproduction has been observed in goats from temperate areas. Ovulation is stimulated by using light treatments, hormonal treatments or introduction of bucks. Improvement of functional traits and disease …
Masteruppsats · SLU
… These activities lead to forest degradation which has negative impacts on production and biodiversity. Between 1970-1980 forests in Borneo, Sabah, Malaysia, was subjected to intense logging. In 1982 and 1983 Sabah was exposed to a prolonged drought followed by wildfires which …
Masteruppsats · SLU
… about farmers having different prerequisites and how it can affect the sheep production. The reason for keeping sheep and the specific breeds show the multiple objectives of the Maasai farmers. Adaptive traits, such as resistance to diseases and droughts, and productive traits …
Examensarbete · SLU
… behaviour traits in the selection for dairy cows to be suitable in the production systems of today. The purpose of this investigation was to study the genetic background to behavioural traits and the heritabilities for temperament, rank order, aggressiveness, feeding behaviour …
Övrigt arbete · SLU
… lot of different qualities as itis water rejecting and easy to form. The wool production today is concentrated to specificplaces in the world which leads to environmental problems and a distorted market. InJämtland, a province in Sweden, there is right now a staking going on for …
en pilotstudie på frisk labrador retriever
Övrigt arbete · SLU
… lot of different qualities as itis water rejecting and easy to form. The wool production today is concentrated to specificplaces in the world which leads to environmental problems and a distorted market. InJämtland, a province in Sweden, there is right now a staking going on for …
Masteruppsats · SLU
… lot of different qualities as itis water rejecting and easy to form. The wool production today is concentrated to specificplaces in the world which leads to environmental problems and a distorted market. InJämtland, a province in Sweden, there is right now a staking going on for …
genomic imprinting
Kandidatuppsats · SLU
… from. These parent-of-origin effects are currently overlooked in livestock production. Many economically important traits in livestock are so called quantitative traits, some of which have shown indication of being partially controlled by imprinted genes. A variety of imprinted …
Masteruppsats · SLU
… be used to improve the Swedish beef recording scheme for a more efficient production.
Kandidatuppsats · SLU
… breed. Throughout crossbreeding, the farmers can combine functional and production traits of different dairy breeds and utilize the heterosis effects which emerge when two or more breeds are crossed. Results from different studies with Holstein crossed with Jersey, Brown Swiss …
Masteruppsats · SLU
… in gilts and sows being too lean and consequently in a risk for reduced reproduction and health status. The Swedish recommendation includes that gilts should be mated after seven months of age, after one documented oestrus, at 120-140kg live weight and with a backfat thickness …
finns det genetisk variation som kan användas i avelsarbetet?
Examensarbete · SLU
… fertility of the beef cows is important for the profitability in beef cattle production. Today there is no genetic evaluation for female fertility in Swedish beef cows. The purpose of this study was to see if calving interval can be used in the genetic evaluation as a measure of …