Browsing Master’s theses (BioVit) by Title
Now showing items 33-52 of 192
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Degradation and digestion of wheat and legume starch in broiler chickens as affected by pelleting and extrusion
(Master thesis, 2019)Starch is a quantitatively most important source of energy in broiler chicken diets. Diets may contain up to 50% starch on a dry matter basis. Despite high starch contents in the diet, broiler chickens can utilize a variety ... -
Derivation of economic values for important production traits in Atlantic salmon
(Master thesis, 2020)Atlantic salmon breeding programs selected several traits simultaneously. Lack of economic values may lead to inappropriate relative weighting of the traits selected for and with a suboptimal long-term genetic gain of the ... -
A descriptive study of the physical quality of commercial broiler pellets across the world
(Master thesis, 2021)This thesis work intends to give a general insight into commercial broiler pellets' physical quality and discuss the differences from a scientific point of view. The samples were delivered to the Norwegian University of ... -
Determination of organochlorine pesticides in the fish from freshwater lakes of Pakistan
(Master thesis, 2021)This study is a quantitative analysis of selected organochlorine pesticides in the muscle tissues of fish and water samples from Tarbela (34° N, 72° E) and Sukkur (27°N, 68°E); two major lakes with water from the river ... -
Developing a soft systems methodology for comparing the sustainability performances of ecologically active concrete to those of the traditionally used stone as scour protection material
(Master thesis, 2020)Sustainability is one of the ‘hottest’ topics of our times: governments, scientists and public opinion have all been actively involved in the conversation for decades now, and, as a consequence, also companies are experiencing ... -
Development of a method to compare sgRNA expression driven by heterologous and endogenous U6 promoters in an Atlantic salmon head kidney cell line
(Master thesis, 2021)Infectious diseases have negative impacts on fish welfare and sustainable aquaculture. Knowledge on host pathogen relationship and genes responsible for disease resistance could lead to development of vaccines and therapeutics ... -
Development of alternative baits based on rest raw materials, low-valued and surplus fish for baited gear fishing of Atlantic cod (Gadus morhua)
(Master thesis, 2018)The experiment was conducted to develop the alternative baits from low-valued and surplus fish for pot and longline fishing of Atlantic cod. Minced herring and capelin were used to produce baits for pots with increasing ... -
Development of winter wheat and weeds in organic reduced tillage
No-tillage and reduced tillage are soil conservation techniques directed to reduce soil erosion and to enhance soil fertility. These techniques are adopted into conventional agriculture where weeds are controlled with ... -
Dietary effect on skeletal development of Atlantic salmon (Salmo salar)
(Master thesis, 2019)The main aim of this thesis was to study the effect of dietary treatments on the skeleton of Atlantic salmon. This experiment was conducted prior to moving the fish to the seawater phase. The starting weight of the salmon ... -
Dietary effects on growth, skin morphology and stress marker genes of Atlantic salmon (Salmo salar L.) smolts
(Master thesis, 2021)The transfer of smolts from freshwater to saltwater is a challenging period during the commercial production of Atlantic salmon. The fish undergoes profound behavioural, developmental, and physiological changes. Additionally, ... -
Dominans av flerårig raigras (lolium perenne L.) i ulike artsblandinger : konsekvenser for avling og fôrkvalitet
(Master thesis, 2018)Flerårig raigras (Lolium perenne L.) er en mye brukt fôrvekst i tempererte områder på grunn av god fôrkvalitet og toleranse for intensiv drift. I Norge har derimot arten ofte ikke blitt inkludert i produksjonen på grunn ... -
Effect of afternoon feeding of particulate limestone on layers' performance, egg and bone quality
(Master thesis, 2018)An experiment was conducted to investigate the effect of split feeding of calcium on the laying performance of hens in the first production cycle, and to study the egg and bone quality of endof-lay hens. A total of 7700 ... -
Effect of air-classified faba bean protein on feed production, physical pellet quality, performance, and protein digestibility in broiler chickens
(Master thesis, 2019)Faba bean seed is a good source of crude protein (CP) (293.06 g/kg DM), however soybean meal (SBM) is the dominant protein source in broiler chicken diets. With air classification technique, faba bean seeds can separate ... -
The effect of black soldier fly (Hermetia illucens) larvae fractions in diets for Atlantic salmon (Salmo salar) on extruder parameters, pellet quality, growth performance and nutrient utilization
(Master thesis, 2021)This study focused on the effects of dietary inclusion of black soldier fly larvae (Hermetia illucens) fractions on extruder parameters, pellet quality, growth performance and nutrient digestibility and utilization in ... -
Effect of dietary protein and lipid sources on technical quality of pellets for Atlantic salmon
(Master thesis, 2022)The purpose of the research was to examine technical quality of pellets added protein (P) and oil (O) sources of vegetable (V) or marine (M) origin. Four different diets for Atlantic salmon smolts were produced with 1) ... -
Effect of packaging materials and storage conditions on development on tip rot in carrot
(Master thesis, 2022)Tuppråte er eit aukande problem ved lagring av norske gulrøter, og fører til mykje svinn og tap av god Gulrot er ein av dei viktigaste grønsakene dyrka i Noreg. I 2020 vart det produsert 54 000 tonn gulrot som utgjer ein ... -
The effect of processing on physical and chemical quality of pelleted feeds for ruminants
(Master thesis, 2018)This study carried out to examine the effect of feed processing on physical quality of feedstuff and on rumen degradation rate of dry matter, protein and starch. Each of three feedstuffs, barley, maize, and soybean meal ... -
Effect of short time temperature alteration on two key reproduction hormone levels of Nile tilapia (Oreochromis niloticus)
(Master thesis, 2020)This study investigates the effects of rapid and short temperature change on the levels of the hormones testosterone and estradiol-17β and the subsequent effect on egg maturation in Nile tilapia (Oreochromis niloticus). ... -
Effect of steam-conditioning and enzymatic treatment on rheological properties of the shrimp feed, formulated with torula yeast (Candida utilis) as a novel feed raw ingredient
(Master thesis, 2018)The use of yeast as an alternative source of protein has been in demand as a novel feed ingredient in shrimp feed nowadays. In order to optimize its use, more research and study is required. The objective of this study was ... -
Effect of temperature-photoperiod interaction on growth and winter bud development in Norway spruce (Picea Abies)
(Master thesis, 2020)Woody species growing in temperate and boreal regions, like Norway spruce (Picea abies) have to enter dormancy to survive winter and freezing temperatures, while simultaneously maximizing their growing period. Dormancy is ...