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… 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 …
… was conducted at five different farms where six groups of suckler cows and heifers of following breeds and crossbreeds were observed; Aberdeen Angus, Charolais, Hereford, Scottish Highland Cattle, Simmental and the Swedish breeds SKB and SRB. The group sizes varied between 14 …
… 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
relaterat till data ifrån egen besättning
… divided into three main phases: calf period, puberty and pregnancy. When the heifers are about three months old a critical period begins. This period ends when the heifer reach puberty and have her first oestrus at around 9-12 months of age. In the critical period the mammary …
… 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 …
… 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 …
… be useful means of detecting oestrus. We monitored two oestrus cycles in four heifers. We found that during standing heat 81 % of the smears were 80-100 % covered with crystals while no smears during the luteal phase had this much crystals. During the luteal phase 74 % of the …
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 …
… 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 …
… compared with a healthy calf. At the age of 3-7 months almost half of all heifers get pneumonia which can result in a delay of the first calving with three months. Every month after the age of 24 months when the heifer has not had her first calf is unneces-sary rearing cost …
… 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.
