Search for dissertations about: "Lactation"

Showing result 21 - 25 of 80 swedish dissertations containing the word Lactation.

  2. 21. Glycerol supplementation in dairy cows and calves

    Author : Anna Werner Omazic; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The production of biodiesel from rapeseed oil methyl ester leaves glycerol (synonym: glycerine, 1,2,3-propanetriol) as a valuable by-product and a promising feed supplement for farm animals. This thesis provides information about the supplemental feeding with glycerol to dairy cows in early lactation and to young calves, and describes the fate of glycerol entering the rumen and the impact of glycerol on enteric methane production and gastrointestinal microbial populations. READ MORE

  4. 22. Immunity, microbiota & immune-related disorders in German shepherd dogs

    Author : Åsa Vilson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : In an epidemiological study based on insurance data we described a breed-specific pattern of diseases in German Shepherd dogs (GSD) and confirmed that this breed is predisposed to immune-related disorders. A prospective study was performed in order to further investigate immunological changes in the GSD using a large number of dogs, 30 bitches and their litters, from the same kennel under well controlled natural conditions. READ MORE

  5. 23. The effect of dry period length on milk production, health and fertility in two cow breeds

    Author : Elisabeth Andrée O´ Hara; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The transition from not producing milk during the dry period to the huge nutrient demands as milk production rapidly increases after parturition imposes significant metabolic strain on high-yielding dairy cows. The drying-off procedure is also demanding and high milk yield at dry-off increases the risk of mastitis and metabolic problems. READ MORE

  6. 24. Neonatal Developmental Neurotoxicity of Brominated Flame Retardants, the Polybrominated Diphenyl Ethers (PBDEs)

    Author : Henrik Viberg; Per Eriksson; Susan Schantz; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; brominated flame retardants; polybrominated diphenyl ethers; PBDE; neonatal; development; neurotoxicity; behaviour; cholinergic system; Biologi; Biology; Biologi;

    Abstract : This thesis examines developmental neurotoxic effects of polybrominated diphenyl ethers (PBDEs), PBDE 99, PBDE 153, and the fully brominated PBDE 209, after exposure during the newborn period in rodents. Our environment contains vast numbers of contaminants, including the flame retardants, PBDEs. READ MORE

  7. 25. Milk production from grass and byproducts : for improved sustainability of dairy production

    Author : Johanna Karlsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Ruminants can produce meat and milk from fibrous feed and byproducts not suitable for human consumption. However, high-yielding dairy cows are generally fed high proportions of cereal grain and pulses, which can be consumed directly by humans. READ MORE