Sökning: "Jersey cattle"

Hittade 5 uppsatser innehållade orden Jersey cattle.

  1. 1. Characterization of bovine milk from indigenous species from Sri Lanka

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Jonathan Skager; [2022]
    Nyckelord :Milk; total proteolysis; protein profile; capillary electrophoresis; fluorescence; indigenous cattle; Jersey cattle; Friesian cattle; Sri Lanka;

    Sammanfattning : Sri Lanka is a country in south Asia that from the beginning of the 21st century, until 2016 almost doubled their quantity in milk import, this to meet their national market demand for dairy products. The country is divided into different agroecological zones, which are the up-country, mid-country, and the lowlands. LÄS MER

  3. 2. Comparing crossbred and purebred dairy cows for economically important traits

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

    Författare :Sofie Liedgren; [2022]
    Nyckelord :Crossbreed; Holstein; Montbéliarde; Jersey; Fertility; Production;

    Sammanfattning : 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. LÄS MER

  4. 3. Field study of the drought’s impact on feeding strategy and biological parameters in early lactation dairy cattle

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

    Författare :Mikaela Würtz; [2019]
    Nyckelord :dairy cattle; drought; energy balance; feeding; metabolism;

    Sammanfattning : The summer of 2018 was unusually warm and dry. For animal production, this resulted in poor pastures, reduced harvests of crops, such as roughage and grains, and increased risk for heat stress in the animals. The drought led to problems as in shortage of animal feed, which made the feeding of dairy cattle difficult. LÄS MER

  5. 4. Case study: phenotypic and economic effect of crossbreeding in a Swedish red and white dairy cattle herd

    Master-uppsats, SLU/Dept. of Agricultural Research for Northern Sweden

    Författare :Victoria Ekenberg; [2017]
    Nyckelord :crossbreeding; heterosis; case study; dairy cattle; SRB; Holstein; Montbéliarde; Jersey;

    Sammanfattning : Profitable dairy production is always strived for. In recent years, dairy production in developed countries struggle with genetic problems like increasing inbreeding, reduced fertility and at the same time increasing market demands for competitiveness. LÄS MER

  7. 5. Hornlöshet hos kött- och mjölkkor: nedärvning och samband med andra egenskaper

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

    Författare :Elin Dalemar; [2015]
    Nyckelord :hornlöshet; kullig; horn; nötkreatur; mjölkkor; köttdjur; genetiska samband; avhorning;

    Sammanfattning : I denna litteraturstudie sammanfattas information angående hornlöshet hos kött- och mjölkkor. Syftet omfattar att undersöka hur fenotypen nedärvs, om det finns skillnader mellan raser samt att redovisa samband med andra egenskaper. Kor med horn kan orsaka skador på såväl djur som människor och korna blir därför svårare att hantera. LÄS MER