Sökning: "Fistulated animal"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Fistulated animal.

  1. 1. The digesta passage rate among dairy cows with different abilities to consume large quantities of roughage : its impact on the milk production, and the reliability of the chemical fibre marker

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

    Författare :Maria Elisabeth Eklund; [2020]
    Nyckelord :chemical markers; chromium; chromium mordanted fibre; cobalt; concen-trate level; EDTA; iNDF; mean re-tention time; ethylenediaminetetraacetic acid; forage consumption; indigestible neutral detergent fibre; liquid digesta phase; MRT; rumen evacuation; sol;

    Sammanfattning : The objectives of the present master thesis were to investigate the passage rate among lactating Holstein and Swedish red dairy cows to investigate the hypotheses of: 1) The cows’ individual total mean retention time (TMRT) has a negative relationship to the cows’ individual forage intake capacity. 2) A reduced TMRT contributes to a reduced feed efficiency, but a higher milk yield. LÄS MER

  3. 2. Evaluation of the performance of a wireless magnetoelastic pH-sensor in rumen environment

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

    Författare :Mohammad Oli Ullah; [2013]
    Nyckelord :SARA; pH; Rumen; Fistulated animal; Magnetoelastic sensor;

    Sammanfattning : Sub-acute rumen acidosis (SARA) is a problem with major economic importance in dairy production. The definition of SARA is a low pH (< 5.3-5.5) in the rumen during several hours in the day. LÄS MER

  4. 3. Methane production from dairy cows : relations between enteric production and production from faeces and urine

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

    Författare :Agnes Willén; [2011]
    Nyckelord :methane emission; enteric; faeces; urine; dairy cow; feed regime; peas; legumes; grass silage;

    Sammanfattning : Methane (CH4) is a greenhouse gas (GHG) that contributes to the global warming. One of the largest sources of methane is livestock, preferably ruminants which alone counted for 30% of the total agricultural anthropogenic methane emissions in the year of 2000. LÄS MER

  5. 4. Effekter av två olika hösilagefoderstater på tarmfloran och träcksammansättningen hos häst och gris

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

    Författare :Sara Ringmark; [2008]
    Nyckelord :häst; gris; tarmflora; hösilage; fibrer; träcksammansättning;

    Sammanfattning : The aim of this study was to investigate if the botanical composition of haylage affects pH, dry matter content and microbial composition of the faeces in horse and pig and ileal environment in pigs. Two separate studies were conducted where pigs and horses were fed two diets containing haylages with different botanical composition. LÄS MER

  7. 5. Glycerol till mjölkkor : effekter på våmmetabolismen

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

    Författare :Karin Kullberg; [2008]
    Nyckelord :glycerol; mjölkkor; våmmetabolism;

    Sammanfattning : Glycerol is essential for the lipid metabolism of both plants and animals. Glycerol is formed in the rumen by hydrolysis of lipids from the feed. Glycerol is also a by-product from the production of biodiesel from rapeseed oil and other fat sources. LÄS MER