Doctoral theses (ProdMed)
Unless otherwise stated on the individual theses, the works in this collection are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Health and mortality in two broiler hybrids differing in growth rates
(PhD Thesis;2024:38, Doctoral thesis, 2024)Over the past 60 years genetic selection for a substantial increase in growth rate and breast meat yield in broilers has led to increased occurrence of various health and welfare problems; these include high mortality, ... -
Fasciola hepatica and Ostertagia ostertagi in Norwegian cattle : diagnostic tests and farmers’ management
(PhD Thesis;2024:52, Doctoral thesis, 2024)Infections caused by pasture parasites (PP) impact animal health and welfare, and cause some of the most important production-limiting diseases in grazing cattle worldwide. This thesis will focus on the brown stomach worm ... -
What is the value of a dead fish? : the biological and economic impact of delousing farmed Atlantic salmon in Norway
(PhD Thesis;2023:61, Doctoral thesis, 2023)The impacts of the ectoparasite salmon lice (Lepeoptheirus salmonis (Krøyer, 1837)), is a major challenge for sustainable production of farmed Atlantic salmon (Salmo salar) in Norway, and has been so for over 40 years. ... -
Embryo loss in Norwegian Red cattle : subclinical endometritis and paternal contribution to early embryo development
(PhD Thesis;2023:33, Doctoral thesis, 2023)The productivity in the dairy cattle industry is highly dependent on fertility. In the last decades, an alarming decrease in the reproductive capacity has been detected in most dairy cattle breeds. Subfertility in dairy ... -
Antimicrobial resistance in companion animals and their home environments : a One Health perspective
(PhD Thesis;2022:57, Doctoral thesis, 2022)Antimicrobial resistance (AMR) is disseminated in all three sectors comprised by the One Health concept: Humans, animals, and environment. Yet, much is unknown regarding the reservoirs for antimicrobial resistance in our ... -
Norwegian raw cow`s milk, a potential source of zoonotic pathogens?
(PhD Thesis;2022:71, Doctoral thesis, 2023)The worldwide emerging trend of eating “natural” foods, that has not been processed, also applies for beverages. According to Norwegian legislation, all milk must be pasteurized before commercial sale but drinking milk ... -
Exploring the short and long-term effects of developmental exposure in zebrafish exposed to anthropogenic chemicals
(PhD Thesis;2020:44, Doctoral thesis, 2020)Persistent organic pollutants (POPs) are anthropogenic chemicals omnipresent in the environment and animal tissues. Due to their persistency they are rarely found as single compounds within organisms but rather in complex ... -
Selenium requirement in Norwegian high-yielding pigs
(PhD thesis;2002:10, Doctoral thesis, 2022)Selenium (Se), one of the essential trace elements with respect to animal and human health, has a narrow range spanning from essentiality to toxicity. It unfolds its vital properties in living organisms as part of the 21st ... -
Respiratory disease in Norwegian pig production - with focus on Actinobacillus pleuropneumoniae
(PhD Thesis;2022:3, Doctoral thesis, 2022)Respiratory disease is considered a major challenge to the porcine health, welfare, and production. To limit the occurrence and impact of clinical respiratory disease, knowledge of the etiologic agent is crucial. Efforts ... -
Molecular epidemiology of multidrug-resistant tuberculosis among pulmonary tuberculosis patients in Tigray Region, Ethiopia
(Doctoral thesis, 2021)Tuberculosis (TB), which is caused by closely related Mycobacterium tuberculosis complex (MTBC) species, is an ancient human disease that gravely affects millions of people every year. TB is a preventable and treatable ...
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