Essays about: "kalvningsegenskaper"
Showing result 1 - 5 of 6 essays containing the word kalvningsegenskaper.
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1. Comparing crossbred and purebred dairy cows for economically important traits
University essay from SLU/Dept. of Animal Breeding and GeneticsAbstract : The use of dairy x dairy crossbreeding as a breeding strategy has increased in Sweden, which has led to an increase of Brown Swiss, Jersey and Montbéliarde crosses. Multiple studies have been done on Montbéliarde and Jersey crossbreds in the USA but to our knowledge, no such study has been done on Swedish data. READ MORE
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2. Dystocia in Swedish beef cattle : effects of different scoring systems on the genetic evaluation
University essay from SLU/Dept. of Animal Breeding and GeneticsAbstract : In Swedish beef cattle breeding, the genetic evaluation comprises calving traits, carcass traits and growth traits. For the calving traits stillbirth, birth weight and dystocia severity grade are recorded. READ MORE
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3. Calving ease and stillbirth in dairy herds using beef and dairy breed bulls
University essay from SLU/Dept. of Animal Breeding and GeneticsAbstract : The aim of this study was to evaluate the effect of different sire breeds on calving traits when used in dairy herds. Records from 1,423,851 calvings from 1990-2016 were collected from the Swedish milk recording scheme from Swedish Holstein, Red dairy cattle, Hereford, Charolais, Aberdeen Angus, Limousin and Simmental sires mated with Swedish Holstein, Red dairy cattle or crossbred dams. READ MORE
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4. Optimal användning av köttrassemin i svenska mjölkkobesättningar
University essay from SLU/Dept. of Animal Breeding and GeneticsAbstract : Inom den svenska mjölkbranschen är användandet av köttrassemin i mjölkkobesättningar ett hett diskussionsämne för tillfället. Mjölkpriset är lågt och det sänker priset på dräktiga kvigor. READ MORE
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5. Orsaker till kalvningssvårigheter och dödfödslar hos SLB och SRB
University essay from SLU/Dept. of Animal Breeding and GeneticsAbstract : Difficult calvings and stillborn calves are costly for the producer and lowering these frequencies can decrease the costs for the dairy operation. Each calving in the herd is registered by the farmer and stored in a central database. READ MORE