123 uppsatser · sida 7 av 9
… different milk products and other foodstuffs and it is often crucial for the dairy plants that the milk fat is stable for different manufacturing processes. Lipolysis is the enzymatic degradation of fat and is the one of the causes for an elevated amount of free fatty acids …
… and is associated with tetany, known as grass staggers. A high yielding dairy cow often loses more magnesium daily in the milk than she has available in the body, and magnesium thereby needs to be provided in the feed to prevent the cow from being affected by deficiency …
… review was to investigate how the rearing systems influence the behaviour of dairy calves. Calves are social animals that form groups within the herd where play and social licking between calves are important social activities. Suckling is a complex behaviour and essential for …
… the same amount of energy and protein (measured as in the classic system). The cows fed according to NorFor Plan consumed 1.5 kg more roughage (p
effect on milk yield, lactose content and somatic cell count at udder quarter level
… leakage, which can increase the risk for mastitis. This is important to each dairy farmer’s milk production as well as the udder health of each individual cow. The present study is composed of two experiments. The purpose of Experiment 1 was to investigate the frequency and …
Many dairy farms doesn’t keep their bull calves and cross cow calves, they sell them to breeders instead of raising them their self. It should be possible for the dairy farmers to do it them self’s. There is also a possibility to bread one calf from the cross heifers. The …
… to use ultrasonography as a diagnostic tool for sub-clinical mastitis in dairy cows. Five cows with high cell counts, and four cows with low cell counts were selected as cases and controls, respectively, and their udders examined with ultrasound during a 5 week period. The image …
Dairy farmers using artificial insemination (AI) are dependent on effective oestrus detection. In Sweden, AI is used for a majority of all dairy cows and oestrus synchronisation with hormones is not allowed. There are reports of declining ability to express oestrus with higher …
The purpose of this literature review was from dairy cows? behaviour and welfare point ofview describe how feed bunk and cubicles in a loose house system should be designed. Todaydairy cows in Sweden and in the world have high demands because of a high milk production,stress and …
relations between enteric production and production from faeces and urine
… higher methane production from the manure.In this study four rumen fistulated cows of the Swedish Red Breed was included. The cows where held in a separate part of a barn so that the sampling would not be disturbed by the other animals. The study was divided into four periods of …
… load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content …
… load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content …
a case study of goals and decision-making within the household
In Kenya the Maasai pastoralists have based their livelihoods on dairy production and the production goal is to maintain a sufficient milk supply throughout the year. The pastoral dairy production has two vital characteristics; breeding and milking. Traditionally, breeding is …
… antibodies against the parasite indicates infection. In the year 2000 Swedish dairy cows were tested for antibodies against N. caninum and this resulted in an estimated seroprevalence of 2% in dairy cows. No such screening has been performed in beef cattle in the country. The …
… 137Cs after the Chernobyl accident. The study also concluded a case study on a dairy farm in the county of Gävleborg. The aim of the case study was to calculate a stable balance for 137Cs. Samples were taken in the cowshed and on the pasture between July and October in 2005. The …
