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… av riktigt varma eller regniga dagar. SUMMARY Earlier studies of grazing dairy cattle have not taken the climate under consideration. A high lactating dairy cow produces a great amount of heat which she has to dissipate in order to maintain her deep body temperature. The ways of …
Oestrus in dairy cattle has changed over the last decades; the intensity of oestrus has declined and the duration decreased. Several studies have shown that not all dairy cows stand to be mounted, and that oestrus expression in many cases may be characterized by other …
finns det genetisk variation som kan användas i avelsarbetet?
The Swedish beef cattle population is growing when the dairy cattle become fewer. The 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 …
validation of national genetic evaluation models
… genetic evaluations of beef cattle, the international genetic evaluation of dairy cattle and the work performed in Interbeef on beef cattle.
… from Ingemar Olsson, SLU, and Jens Fjelkner, Skånesemin. Ten producers of dairy steers located in Skåne was chosen for this study. The producers were interviewed to collect information about their steer production with respect to their planning and results. All producers …
… which elements that functioned in a positive way on the natural behaviors of dairy cattle among KRAV certificated and conventional farms. The study was based on reading of earlier research and completed by interviews with farmers, animal health inspectors and consumers. The …
… which elements that functioned in a positive way on the natural behaviors of dairy cattle among KRAV certificated and conventional farms. The study was based on reading of earlier research and completed by interviews with farmers, animal health inspectors and consumers. The …
and preparations for a metagenomic survey of virus in mosquitoes
… virus, SBV, was discovered in 2011 as an "emerging infectious disease" in dairy cows in Germany. The virus causes fever, diarrhea and reduced milk production in dairy cows as well as abortions and malformations in newborn calves. From these cows could SBV be detected using …
… of generations. In theses I have chose to make two drawings, one for dairy cows and one for cattle rearing. The drawings are made for a future alternation of generations at my parental home in the province Dalarna. The results are made out of educational visits at different …
… was to compare feed intake, growth, feed utilisation and rumen function in dairy calves fed dried distiller’s grains with solubles (DDGS) or Swedish grown rolled soya beans (SSB) compared to imported soya bean meal (SBM) as protein feed in a total mixed ration.In the trial 84 …
… of different lines or breeds. It is one of several breeding strategies in dairy production used to increase the economic profit. The use of crossbreeding increases due to changes in the dairy market and an increase of inbreeding among purebred Holstein. The main benefit of …
Background: Mastitis in dairy cattle is a common ailment worldwide. A cause of mastitis can be bacteria such as Escherichia coli. Mastitis is not a deadly ailment and sometimes the dairy cows show no symptoms but if certain virulence genes are present in the bacteria that cause …
The incidence of many of the most common diseases in dairy cattle has been proven to be highest during the time closest to calving. It is possible that the current breeding strategy with 12 month calving intervals increases the risk for disease in dairy cattle, which is …
Dairy farming in Uganda provides a source of food, employment and income. Previous studies have revealed high frequencies of bovine mastitis, a costly disease for the dairy farmer. The aims of this study were to investigate the bacteriological panorama in milk from udder …
Milk yield levels in dairy cows are influenced by many factors such as nutrition, breed, health status, management and environment. This study was conducted among small scale farmers in Zambia, where the climate can be dry for up to six months per year and cause a lack of green …
