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Showing result 1 - 5 of 106 essays matching the above criteria.

  1. 1. Äggstockscystor hos mjölkkor : en jämförelse av den kliniska bilden, förekomst, och diagnostiken idag mot för 10–20 år sedan

    University essay from SLU/Dept. of Clinical Sciences

    Author : Julia Nygårds; [2024]
    Keywords : follikelcysta; fruktsamhetstörning; fertilitet; riskfaktorer;

    Abstract : Äggstockscystor är en vanlig anledning till nedsatt fruktsamhet hos mjölkkor. Tillståndet uppstår till följd av en utebliven ägglossning där follikeln fortsätter att växa och blir kvarstående i äggstocken. Cystorna gör korna infertila under tiden som de finns kvar i äggstocken och kan därmed förlänga kalvningsintervallet. READ MORE

  3. 2. How does a beef x dairy calving affect the dairy cow’s following lactation period?

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Roberto Espinola Alfonso; [2022]
    Keywords : beef cattle; dairy cattle; crossbreeding; milk yield; fertility; survival;

    Abstract : In dairy x beef breeding, much of the research has focused on the performance of the crossbred calves, yet little focus has been given to the subsequent performance of the cow itself. This study aimed to evaluate the performance of dairy cows for milk yield, fertility, and survival traits after giving birth to crossbred calves, and to compare this to the performance of dairy cows after giving birth to purebred dairy calves. READ MORE

  4. 3. Biokol som tillsats i vallensilage utfodrat till mjölkraskvigor : inverkan på konsumtionsförmåga, smältbarhet, träckens konsistens och färg, samt djurens renhet

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Ida Milton; [2022]
    Keywords : Biokol; Smältbarhet; Vallensilage; Aktivt kol; Mjölkraskvigor; Konsumtionsförmåga; Träckkonsistens; Färg; Renhet;

    Abstract : Biokol är en produkt som tillverkas av organiskt material eller biomassa i en process som kallas pyrolys, då materialet upphettas i en temperatur från 350 till 1000 ̊C i en syrefri miljö. Biokol är lagringsstabil under lång tid innan den bryts ned och fungerar därför som kolsänka. READ MORE

  5. 4. Quality parameters and protein profile in raw milk from individual cows with different lactation number and breed

    University essay from SLU/Department of Molecular Sciences

    Author : Jennifer Hallqvist; [2022]
    Keywords : Raw milk quality; protein profile; actation number; Swedish Red; Swedish Holstein;

    Abstract : Swedish dairy cows have an average life expectancy of 5 years, which means that each cow undergoes about 2.5 lactation cycles through her life. Reasons for culling dairy cows are mainly impaired fertility, udder health (mastitis) and low milk yield. READ MORE

  6. 5. Evaluation of bonding and maternal behaviours in cattle : swedish dairy cows in a cow-calf contact system

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Elin Svensson; [2022]
    Keywords : cow-calf contact; cow-calf bonding; maternal behaviours; preference test; dairy production;

    Abstract : In today’s commercial dairy production, it is common practice to separate the cow and calf a few hours after parturition. There is, however, increased interest from both farmers and consumers, to keep the cow and calf together for a longer period while still maintaining dairy production, because it is perceived as more animal friendly. READ MORE