176 uppsatser · sida 11 av 12
Human-animal interaction is suggested to be a main feature within livestock production. The quality of handling, for instance, appears to be greatly depending on the attitudes and behaviour of the stock people. Various studies have been conducted on relationships between human …
Approximately 20% of the milk within the udder of a cow is stored in the cistern and immediately available for milk removal, while activation of the milk ejection reflex is required for removing the remaining milk stored in the alveolar compartment. The aim of this literature …
When facing the fact that high yielding dairy cows has an increasing energy requirements, the practice of adding lipid supplements such as concentrates rich in palm oil and/or palm oil industry by-products become more common. Palm oil containing high levels of C16:0 causes high …
… has in studies abroad showed some positive effects among high yielding dairy cows. Among other things it has been suggested that the periparturient metabolic stress becomes lower, that the fertility is improved and dry off becomes gentler for the udder, due to a lower milk …
… and biogenic amines in silage and their effects on the health of the dairy cows. After harvest-ing, the plant proteases degrade the proteins in the plant. The protein degrades to different fractions with different digestibilites in the rumen. Fraction A contains non- protein …
Milk allergens were digested by allowing them to flow through a chromatography column, where pepsin was conjugated to the stationary phase of the column. The allergen fragments were then characterized both biochemically, by using SDS-PAGE and gel permeation chromatography, and …
… The results indicated that an introduction had no larger effects on the cow’s rank in the herd. In summary, training results in a higher milk production, however an introduction during the late part of pregnancy should be avoided as it may have negative effects on the rank of …
I sen dräktighet och vid laktationens inledning avger mjölkkor stora mängder kalcium till fostret och mjölkproduktionen. Kons förmåga att upprätthålla kalciumbalansen sker med hjälp av mobilisering av kalcium från skelettet samt upptag av kalcium från tarmen, mekanismer som …
Att uppfylla Sveriges lag om betesgång under sommarhalvåret är inte helt lätt för alla mjölkbönder. Särskilt i de större besättningarna krävs noggrann planering inför betessäsongen, exempelvis gällande drivgångar, kotrafik och tillhandahållande av betesareal. Inte alla gårdar …
The animal welfare act in Sweden states that dairy cows need to have at least a dim light present at night, but there are no recommendations for what intensity the light should have. It is unknown how cows perceive and react to low light intensities and earlier studies on this …
The relatively poor economy in European dairy farming might be improved from efficient feeding systems and dietary management. Increasing herd sizes and transition to loose housing systems in Sweden, increases the possibilities for other feeding systems than separate feeding …
… composition and content of FFA. Milking frequency (MF=number of milkings per cow and day) and the composition of feed are two examples of factors generally performed at farm level. The objective of the present study was to evaluate how FA composition of milk and amount of FFA …
… behaviors were recorded in intervals of 10 minutes on 18 adult non-lactating cows of each breed during the first five hours of the pasture time. Ankole cattle spent more time resting (4.9 %) than Boran cattle (1.95 %) (p=0.001). Ankole cows also spent more time in shade than …
… part of a research project with the purpose to examine the behavior of dairy cows inside a barn. Each cow needs to be tracked with a precision of 50 cm, and since GPS-technique has poor functionality at indoor environments, an indoor positioning system needs to be developed …
en före- och efterstudie
Fertiliteten hos högavkastande mjölkkor i världen har en negativ trend. Eftersom brunststyrkan avtagit i takt med att mjölkproduktionen ökat, och lantbrukarna har allt mindre tid avsatt för observation av sina djur, finns en växande marknad för automatiska brunstpassningssystem …
