49 uppsatser · sida 3 av 4
planering för om-, till- och nybyggnad
… to finance. All livestock is in loose house system. The cows and the pregnant heifers are kept in cubicles and manure alleys whit scrapers. The younger cattle are kept in pens whit slatted floor and the calves are kept in large pen whit deep litter and automatic calf feeder. The …
… 150 bulls and another small dairy cattle farm with 26 cows and 20 replacement heifers and calves. Faeces and nasal swabs were analysed with PCR and ELISA. The result shows that PCR seems to be a reliable method for detecting BCV but that the ELISA test can not be used as a …
kostnader och åtgärder
To get a good economy on the dairy farms the fertility control of heifers and cows is a crucial factor. It is also important to know which key parameters that should be tracked. In this work well established routines for heat detection have to be applied. When the dairy farmers …
betydelsen av lockgiva och regelbundna tider
… The reinforcement consisted of concentrate. Eight groups of cows, mostly heifers, were tested for five days for each treatment. All groups were tested with all treatments in a balanced order. The animals behaviour, if they came or not and the time it took until they were within …
… 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 …
… it can be given as an energy complement to cow and calf in beefproduction, to heifers and dairy cows. More studies are needed as an increased production ofmaize for silage in Sweden may be profitable economically as well as nutritionally.
… diseases are often difficult to detect in calves. In Kvigprojektet (”the heifer project”) only half of the cases of pneumonia confirmed by veterinarians had been detected by the farmers. In a group system it is not easy to identify which one of the calves that suffers from …
… 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 costs of recruitment animals, it increases the number of young animals that become available for slaughter …
effekt på mjölkavkastning och betesbeteende hos mjölkkor
… a standardized decrease in milk yield of 0.6 and 0.4 kg ECM for older cows and heifers, respectively. During AP and FP the cows grazed together on 10 ha in a rotational grazing system with 6 paddocks. Sward height was measured before and after the cows grazed each paddock and …
… of Agriculture (SJV) in 1996, it appeared that there were around 780 cows and heifers of the SLB breed (SJV, 1997). SJV did in 2006 a plan for the development of livestock genet-ic resources and the number of cows of SLB was estimated at approximately 200. This meant that the …
… of Agriculture (SJV) in 1996, it appeared that there were around 780 cows and heifers of the SLB breed (SJV, 1997). SJV did in 2006 a plan for the development of livestock genet-ic resources and the number of cows of SLB was estimated at approximately 200. This meant that the …
… feeding recommendations would affect plasma calcium level at calving. Twelve heifers and 24 cows (all pregnant) of the Swedish Red Breed were divided into six blocks based on age and calving date. Animals within block were randomly allocated to one of three experimental diets; a …
… her stall for tied dairy cattle to a loose-housing system for recruitment heifers for milk production asked me as an ethologist to find a system which can be fit to her existing tie-stall barn for 30 dairy cows, considering the animal needs in terms of movement, social …
… parturition seemed to have more lying time, mean 57.4% per day compared with heifers, with only one calf at parturition, mean 44.8% lying time. Based on the results from the study the cow’s individual number of steps per day is the most reliable parameter to use when it comes to …
… 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 …
