Essays about: "insemination"

Showing result 1 - 5 of 76 essays containing the word insemination.

  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. Bacteria in the vagina during the estrous cycle in mares

    University essay from SLU/Dept. of Clinical Sciences

    Author : Timjan Åkerholm; [2023]
    Keywords : artificial insemination; bacteriology; breeding; embryo transfer; equine reproduction; estrous cycle; ovulation; stud farm; vagina;

    Abstract : An understanding of the normal bacterial flora of any organ is essential to provide the background to conditions and interventions that might cause the flora to change. In the vagina of the mare, a change of bacterial flora could be induced by introduction of semen, treatment with antibiotics, backflow from an unhealthy uterus etc. READ MORE

  4. 3. 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

  5. 4. Förlängt kalvningsintervall : stämmer rekommendationerna om att 12 månaders kalvningsintervall är mest lönsamt?

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Viktor Ronström; [2022]
    Keywords : Kalvningsintervall; lönsamhet; mjölkavkastning; fertilitet; Calving interval; profitability; milk yield; fertility;

    Abstract : Svenska mjölkkors mjölkavkastning ökar för varje år som går. Ett kalvningsintervall om 12–12,5 månader är vanligt och har varit rekommendationen de senaste 30 åren för att uppnå en maximal vinst då försök visat att mjölkavkastningen sjunker ju längre laktationen går. READ MORE

  6. 5. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples

    University essay from SLU/Dept. of Clinical Sciences

    Author : Lea Enenkelová; [2021]
    Keywords : sheep reproduction; Jezersko-Solčava sheep breed; colloid centrifugation; melatonin;

    Abstract : The composition of the ram sperm membrane renders it vulnerable to injury during cryopreservation. Production of reactive oxygen species, which are by-products of metabolism, increases during freezing and thawing, causing damage to sperm membranes and acrosomes as well as affecting mitochondrial activity. READ MORE