176 uppsatser · sida 12 av 12
… (SH) and Swedish Red (SRB) was estimated in this study. Observations on cows born between 1990 and 2012 were used to estimate the heterosis effect and breed group effect for several traits included in the Nordic breeding goals: production, fertility, udder health, calving …
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 …
… foals could be estimated and compared to three commercial milk replacers and cow’s milk with 1,5 % fat.
Engagerande och emotionella icke-spel
En ny spelgenre har ökat i popularitet de senaste fem åren. En spelgenre som faller utanför den klassiska definitionen av spel. En spelgenre vid namn ”Idle Games”. Föreliggande studie handlar om vilka element i dessa spel som får spelaren att fortsätta spela och hur elementen …
… days in April 2006. Four animals in every group were studied; two high ranked cows and two low ranked. Rank order influenced in which pace the animals left the test-person. The pace was calmer on day 5 than on day 1 (p=0,007, Anova) for the low ranked animals. The flight …
Six cows were subjected to an intravenous glucose tolerance test (GTT) to evaluate the amount of glucose that is needed to stimulate the release of insulin from pancreas. Four of the cows were in early lactation and two were non-lactating and not pregnant. Series of …
… utero from an infected mother. The infection is transmitted efficiently from cow to her offspring and this can occur for generations. An infected fetus may be aborted but it is more common that the calf is born clinically healthy but chronically infected with N. caninum. Once …
… how dairy farmers store, deal with and feed distillers? grain to dairy cows. Knowledge about feeding with distillers? grain was gained from study visits to dairy farms and interviews with dairy farmers, advisors and veterinarians. The aim of collecting this information was to be …
The milk production per cow has increased considerably during the last 50 years and due to the breeding for higher milk production also brings decreased reproduction efficiency. In a Swedish study 1996 it was shown that on average only half of all estruses were detected. Every …
… 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 samples were analysed for 137Cs. Stable balance calculations were accomplished for the grazing period and the winter period for one cow …
en praktisk guide
… doing ultrasound of other organs in the abdomen the knowledge is more limited. Cows are very large animals, so it is not possible to examine everything inside the abdomen with ultrasound, simply because the ultrasound beam has a limited penetration. There is also lots of gas …
