Avancerad sökning

Hittade 5 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Analys av juverhälsodata från kärnbesättningen Viken

    L3-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Emelie Tufvesson; [2007]
    Nyckelord :mjölkkor; kärnbesättning; juverhälsa; celltal; testdagsmodell; avelsvärdering;

    Sammanfattning : Nötcenter Viken is a Swedish nucleus herd for dairy cattle. The goal for the farm is to select suitable mothers for the next top generation of bulls. Today the selection for udder health is based on a pedigree index and phenotype data. The pedigree index is based on the cow's father and grandfathers breeding values. LÄS MER

  3. 2. Är korta spenar ett problem i samband med mjölkning?

    L3-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Anna Israelsson; [2006]
    Nyckelord :spenar; mjölkning; mjölkkor; mjölkkvalitet; juverhälsa;

    Sammanfattning : In some herds it has been observed that extremely short teats have become a problem; with a negative influence on the milking performance. The aim of this study was therefore to investigate to what degree the quality of the teats and the milk in cows with short teats is affected as compared with cows with normal teat length and furthermore if the milking performance could be improved by using a liner adapted to short teats. LÄS MER

  4. 3. Samband på individnivå mellan akuta klövskador och cellhalten i mjölk hos mjölkkor

    L3-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Frank Lilja-Helmersson; [2005]
    Nyckelord :klövskador; cellhalt; akuta klövskador; individnivå;

    Sammanfattning : The purpose of the present study was to investigate the cow-level association between acute hoof lesions and the somatic milk cell count in dairy cattle. Cows from three loose-housed Swedish dairy herds were enrolled in the study if they had an acute hoof lesion treated by a veterinarian or professional hoof trimmer during the preceding year, according to farmer records. LÄS MER

  5. 4. A comparison between bulk tank milk samples and individual milk samples from dairy herds in Uruguay

    L3-uppsats, SLU/Dept. of Microbiology

    Författare :Anneli Axelsson; [2004]
    Nyckelord :mastitis; sub-clinical mastitis; bulk tank milk; Uruguay;

    Sammanfattning : Uruguay is situated between Argentina and Brazil in eastern South America and is the main exporting country of milk and milk products in the region. Thus, the dairy industry is of great economic importance to Uruguay. Mastitis is an inflammatory reaction of the mammary gland, which has significant health and economic implications. LÄS MER

  7. 5. Amkosystem i mjölkkobesättningar : byggnadslösningar och erfarenheter

    L3-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Stina Norrbom; [2001]
    Nyckelord :mjölkkor; amkor; stallbyggnader; kalvar; uppfödning;

    Sammanfattning : Allt fler mjölkproducenter börjar använda sig av amkor till sina kalvar. En betydande orsak till detta är det ökande antalet producenter som är medlemmar i KRAV och KRAVs regler om helmjölk till kalvar och naturligt beteende. Även konventionella gårdar börjar använda sig av systemet. LÄS MER