49 uppsatser · sida 2 av 4
… the opposite: conventional dairy herds had throughout, amongst both first calf heifers and multiparous cows, a higher prevalence of claws without lesions (69,5 % versus 49,7 %, P
… at theGästgivaregården and to show the space needed for cows and replacement heifers. Itwould also show the storage that will be needed. The design was largely based on resultsfrom studies on six different farms, but also the facts that are taken from research papersand articles …
… 5.5% of all calves born by beef cowsdied and about 8.5% of the calves born by heifers died. Most calves die during calving. Thereare some statistics that show calf mortality has increased in recent years. It is important to findout why this is happening. The literature review …
en enkätstudie
… There was no difference in the occurrence of inhibited milk let down between heifers that were introduced to the cows housing system before calving, compared to those that were moved to the cow stables after calving. The length of the introduction period varied between herds but …
en fältstudie för att bestämma lämplig undersökningsdag och frekvens på ultraljudsproben
… new method for early pregnancy diagnosis. In the present study 40 cows and 10 heifers were examined 16, 19, 22 and 25 days after artificial insemination to decide on what day an accurate pregnancy diagnosis could be made under field conditions. A 5 and 7,5 MHz transducer were …
… in the high fat line (4,5 %) compared to the low fat line (2,2 %). In general, heifers had more problems at calving than cows. The results indicate an increase in the live weight of SRB and SLB during the last decades. The weight of the mother at calving has increased more (in …
… is low in dairy cattle; the heritability was around one percent both in the heifer period and in lactation one to three in both breeds. About one fourth of the herds had a standard deviation in the herd of zero for the trait. This indicates that it is common that the scale for …
… activity, lying down and getting up behaviour, weight gain and cleanliness in heifers in cubicles versus on deep-litter. The study was conducted from autumn of 2005 until autumn of 2006 in a commercial organic dairy herd with 340 cows. In 2005 the farm rebuilt half of the young …
… followers and that is to low. But I can compensate this by letting some heifers be tied up in the old stable. When the barn is rebuilt I can have further 20 cows plus calves and 4 heifers. I can also have 3 cows in the calf pens, which make one pen for 20 cows. I consider this …
… answered the question that had used X-Vik and just over half of them use it to heifers. The main reason to use X-Vik was to have a calf after a specific cow. Many stated that they would expand the herd and had a shortage of heifers and some other were curious and wanted to test …
… of cows that were culled after one lactation than stable or increasing herds. Heifers were also found to live longer in loose housing barns and in organic systems. Heifers born or having their first calf during summer or autumn were more likely to live longer than cows born or …
… The aim of this report is to find differences between two groups of heifers, where one group is trained i.e. introduced to the AMS before calving and the other group is introduced after calving. Collected data is from a period of four years. Introducing a system to the heifer …
… the same also applied to cattle. We monitored three oestrous cycles in two heifers and exposed them to urine from bulls and to vaginal mucus and urine from cows in oestrus, substances thought to contain pheromones, during oestrus and dioestrus. We found that there was no …
… mixer fulfils the two goals under the condition that a new cattle shed for the heifers are built nearby the existing cowshed, which is planned.
… it them self’s. There is also a possibility to bread one calf from the cross heifers. The purpose of the investigation was to see if there is any economic possibility to breed beef cattle. I have used the same sample farm trough the hole study, because it would be easier to …
