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… period starts. The ewes can then be used as nature conservators on semi-natural grasslands. Large amounts of pasture, both for ewes and lambs are needed, in a production model with spring born lambs. In a production system with summer born lambs the ewes can e grazing …
According to the Board of Forestry, in Västerbotten, many natural regenerations of Scots pine (Pinus sylvestris) carried out on privately owned forest in the middle of 1990 in Västerbotten have rendered a bad regeneration outcome and will provide a low future forest production …
jämförelse mellan naturlig och mekanisk ventilation
… two types of ventilation system that can be used for animal transportation: natural and mechanical, the former being the most common. This system is based on the temperature difference between the external and internal air, wind speed and, most crucially, the speed of the …
Sitka spruce (Picea sitchensis) is a tree species that have its natural distribution along the West Coast of North America, from Alaska in the north to northern California in the south. Sitka spruce is a typical coastal tree species that can reach heights up to 85 meters and …
… as feed to cattle ” Silage quality and its effect on the feed intake ” Semi-natural pasture ” Concentrate supplement and compensatory growth These factors, among other, do affect the production result if they are mistreated. The calf has to have a good start in life. The …
en jämförelse mellan föryngring i produktions-, rekreation/produktion och rekreationsskog.
… the ”utvärderingstabell”. With this in mind, the municipality of Växjö can use natural regeneration in most of the storm-felled areas. The inventory could not prove any trend when comparing the number of seed trees and the number of seedlings. Nor could any trend comparing the …
Framtida konsumtion, export, import och produktion samt konsumtion under inverkan av ett klimatavtal
… to increase the more environmental friendly ones. Such an energy source is natural gas, which emit less greenhouse gasses than the extensive use of coal and oil in Australia.This paper reports on the future use of natural gas in Australia, depending on a modulation of …
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 …
To turn the dairy heifers out on pasture is the most natural way for the cattle to get feed. At the same time it is cheap and if it is right treated a feed of high nutritive value. The problem today is to get dairy heifers to grow enough when they are grazing at natural pasture …
… to study, it is thus difficult to determine which behaviors can be regarded as natural and thus positively related, acordingly the welfare of cattle have been forgotten and research on positive emotions of cattle have not been prioritized. The aim of this study was to observe …
en fält- och metodstudie
AbstractA prerequisite to be able to use semi-natural pastures in an optimal way is knowledge about their conditions and properties. One thing to consider is the amount of herbage mass that can be produced during one season on different types of semi-natural pastures. That …
… that these substances are not only anthropogenically but also producedin natural processes, like volcanoes and forest fires. To investigate if there is a need to take these naturally formed dioxins into account in the risk assessment processes, interviews with persons at …
En studie för Strängbetongfabrikerna i Veddige och Herrljunga
… report has been developed in association with Strangbetong AB, Sweden. The natural gravel that is being used as fine aggregate for concrete production today is an ending natural recourse and the Swedish government has decided to strongly reduce the extraction from the year of …
… the number of oocysts were greater but still at a level that indicates a naturally acquired immunity. With regard to the small number of samples it is hard to draw any conclusions from the results but with account taken to other studies vaccination seems an alternative to …
… to improve but on the whole many positive things were observed, e.g. use of natural grazing areas, maintenance of biodiversity, minor use of fertilizers and pesticides, use of land (pasture/leys) that otherwise would not be used for production of human food for direct …
