176 uppsatser · sida 6 av 12
… are then kept in individual pens, group pens or, more rarely, with a foster cow. Feeding system often depends upon housing system and calves in single pens are often feed through buckets or a bucket with a nipple. In group pens calves can be fed in the same manner or trough an …
To be a farmer and have suckler cows is a difficult combination especially considering the economy. Because of the increased feed costs, the margins have become tighter. The meat price from beef cattle has increased a little when this text is written (spring, 2008), but not so …
… 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
… on one front leg at forced extraction of a dead calf from an artificial cow. The experiment was performed in five parts with mechanical traction and two parts with manual traction. Numbers of pullingperiods and numbers of handle movements per pulling-period were registered. The …
The aim of this literature review was to investigate whether the modern dairy cow has the time she needs to lie down and to sleep and what deprivation of these behaviors could lead to. Current research seems to agree on the fact that sleep is essential but there is no uniform …
… in the following lactation is settled. In an average herd about 15% of the cows are dry (Marcussen & Krog Laursen, 2008). In many herd the dry cows are set aside, that means setting aside 15% of your herd, at the time when they are preparing for their next lactation. The …
… in the following lactation is settled. In an average herd about 15% of the cows are dry (Marcussen & Krog Laursen, 2008). In many herd the dry cows are set aside, that means setting aside 15% of your herd, at the time when they are preparing for their next lactation. The …
… features to include in the breeding goal. If longevity is increased each cow can produce more calves and the number of female calves used for recruitment can be reduced and only the best heifers need to be selected for breeding. The benefits of longer life is that it lowers the …
effekt på mjölkavkastning och betesbeteende hos mjölkkor
… was examined to see if the different concentrate levels affected the time cows spent grazing and ruminating. Since ruminating animals give rise to methane emissions, methane emissions from the different feed ratios were estimated using equations obtained from the literature. In …
… Standing- and lying down sensors were attached to the leg of sixteen beef cows. Ten of the sixteen beef cows gave birth to calves during the trial period. From these ten cows, data from six cows were used to assess the sensors fitness for use as calving indicators. The …
… that has been expressed lately. The objective is to co-digest fodder beet and cow manure in order to find the best methane yielding mixture(s), and based on these results be able suggest whether fodder beets are a suitable substrate to use in a greater extent. This might prove …
a case study
… in information with Delaval’s "feed first principle" system and Lely’s "free cow traffic" system.The results of the qualitative interviews with the dairy farmers who bought an AMS show that there are three important factors that influence the outcome: employees, suppliers and …
… (AMS). Studies have shown that transition to AMS affects the udder health of cows adversely, recognized primarily as elevated somatic cell counts. There are several reasons for this, for example the greater variation in milking frequency seen in AMS. On one hand, short milking …
The aim of this project was to quantify the total sleep time in modern dairy cows during24-hour periods and to investigate whether the total amount of sleep as well as timespent in different sleep stages varies between the dry period, early- and peak lactation.The distribution …
… interval would result in lower disease frequency. The hypothesis is that cows with a planned calving interval of 15 months have a lower disease incidence than cows with a calving interval of 12 months due to less number of calvings. Therefore the difference in disease frequency …
