46 uppsatser · sida 1 av 4
en fältstudie
… joined the EU and the control at the border disappeared. The oversupply of heifers that are not for any use are slaughtered in most cases. Instead these heifers can overcast and then become once-bred heifers. They get to calf one time before they go to slaughter in the autumn …
… animals, but unfortunately the behavioural and psychological needs of cows and heifers are often left unfulfilled. A long time for eating is beneficial for the digestion and also gives the cattle something to do and decreases the risks for developing abnormal behaviours. An …
… 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 …
… During the grazing period of 2004 semi-natural grasslands were grazed by heifers of the traditional Swedish breed Väneko and by the commercial Continental breed Charolais. Defoliation of F. ulmaria (Meadowsweet), J. effusus (Soft rush), A. glutinosa (Alder) and D. cespitosa …
… A possible explanation can be their high and increasing milk production. Heifers ability to show oestrus is probably not affected to the same extent. The aim of this study was to estimate and compare oestrus duration and strength in heifers of the Swedish Red and Holstein …
… the stereotypi level in cattle. The aim of this experiment was to study dairy heifers that had never been tethered before the start of the experiment, to evaluate the affect of tethering on the development of stereotypies and the impact of the feeding regime on the behavior of …
… 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 …
… factors for an effective, but also successful, way to raise and house heifers. This study can be used for other dairy farms to use as guidelines in their process to raise heifers. To let outside heifer growers house, feed and have the heifers pregnant before return, can save a …
… 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
… about the system before AMS, a description of the AMS in question, housing of heifers before calving, introduction of heifers into AMS, diseases and injuries in the herd and finally a comparison between the production and quality of the milk before and after introduction of AMS …
To turn the dairy heifers out on pasture is the most natural way for the cattle to get feed. At the same time it is cheap and if it is right treated a feed of high nutritive value. The problem today is to get dairy heifers to grow enough when they are grazing at natural pasture …
… wintering, which lasted over two winters, 97/98 and 98/99, with two groups of heifers indoors and two groups of heifers outdoors raised in different environments, indoors or outdoors during their second winter. Both indoor and outdoor heifer groups were fed grass silage ad …
… The result of this effort was aimed at the production of healthier calves and heifers. A literature review has been carried out based on both national and international material. Technical descriptions and designs were made for the different housing systems. The biological …
… proportion of offspring of either one or the other gender. In dairy cattle, heifers are more valuable, while in beef stock bulls are preferred. Semen is sorted based on the difference in DNA content between the X- and Y-chromosome in the genome of the sperm. X-chromosomes …
… grouping. You then divide the dry cows in proven sound, proven sick and heifers. The optimal number of groups is six, because you also should move the cows and heifers near calving into a service unit, and keep the three groups previously stated (Landin et al, 2007). Another …
