Browsing Brage NMBU by Author "Gjøen, Hans Magnus"
Now showing items 1-20 of 25
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Analysis of crosses between three strains of striped catfish (Pangasianodon hypophthalmus) in Viet Nam
Tran, Phuc Huu (Master thesis, 2016-08-18)This study focused on harvest body weight of striped catfish (Pangasianodon hypophthalmus) in a selective breeding program in Vietnam. The first objective was to estimate additive, non-additive genetic effects and heritability ... -
Artificial fertilization and generating families for a selective breeding programme of large yellow croaker (Larimichthys crocea)
Yu, Xinxiu; Wu, Changwen; Gjøen, Hans Magnus (Journal article; Peer reviewed, 2017) -
Breeding for disease resistance against Edwardsiella ictaluri in Mekong striped catfish (Pangasianodon hypophthalmus)
Pham, Khoi Dinh (PhD Thesis;2020:77, Doctoral thesis, 2020)Bacillary necrosis (BN) is a disease caused by Edwardsiella ictaluri (E. ictaluri) that results in severe economic losses in farming of Mekong striped catfish (Pangasianodon hypophthalmus) in Vietnam. Genetic selection ... -
Case study development of a challenge test against Ewardsiella ictaluri in Mekong striped catfish (Pangasianodon hypophthalmus), for use in breeding
Pham, Khoi Dinh; Nguyen, Sang Van; Ødegård, Jørgen; Gjøen, Hans Magnus; Klemetsdal, Gunnar (Peer reviewed; Journal article, 2020) -
Conspicuous carotenoid-based pelvic spine ornament in three-spined stickleback populations—occurrence and inheritance
Amundsen, Cesilie Røtnes; Nordeide, Jarle Tryti; Gjøen, Hans Magnus; Larsen, Berner; Egeland, Einar Skarstad (Journal article; Peer reviewed, 2015) -
Conspicuous carotenoid-based pelvic spine ornament in three-spined stickleback populations—occurrence and inheritance
Amundsen, Cesilie Røtnes; Nordeide, Jarle Tryti; Gjøen, Hans Magnus; Larsen, Berner; Egeland, Einar Skarstad (Journal article; Peer reviewed, 2015) -
Construction of Genetic Linkage Maps From a Hybrid Family of Large Yellow Croaker (Larimichthys crocea)
Yu, Xinxiu; Joshi, Rajesh; Gjøen, Hans Magnus; Lv, Zhenming; Kent, Matthew Peter (Peer reviewed; Journal article, 2022) -
Development and evaluation of 4-way crossbred chicken population in Southern Ethiopia
Ambaye, Fassil Bekele (PhD Thesis;2010:46, Doctoral thesis, 2010)Village chickens in Ethiopia are predominantly indigenous. They play an important role in the livelihood of farmers mainly by providing animal protein through meat and egg, as a source of income and family saving, and means ... -
Development and Validation of 58K SNP-Array and High-Density Linkage Map in Nile Tilapia (O. niloticus)
Joshi, Rajesh; Arnyasi, Mariann; Lien, Sigbjørn; Gjøen, Hans Magnus; Alvarez, Alejandro Tola; Kent, Matthew Peter (Journal article; Peer reviewed, 2018) -
Effect of short time temperature alteration on two key reproduction hormone levels of Nile tilapia (Oreochromis niloticus)
Sultana, Nowshim (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). ... -
Establishment of a base population for long-term genetic improvement of Nile tilapia in Ethiopia
Workagegn, Kassaye Balkew (PhD Thesis;2019:8, Doctoral thesis, 2019)The success of genetic improvement obtained in fish breeding programs depends on the genetic diversity of the founder populations and how the base population is constructed, as they influence the genetic variation of the ... -
Estimation of genetic parameters and strain genetic effects in Oreochromis mossambicus
Das, Koushik (Master thesis, 2019)A breeding program for Oreochromis mossambicus has been established by CEPAQ (Centro de Pesquisa em Aquacultura, translated as The Research Centre in Aquaculture) and is intended to develop the local fish farming industries ... -
Genetic analysis of resistance in Mekong striped catfish (Pangasianodon hypophthalmus) to bacillary necrosis caused by Edwardsiella ictaluri
Pham, Khoi Dinh; Ødegård, Jørgen; Van Nguyen, Sang; Gjøen, Hans Magnus; Klemetsdal, Gunnar (Journal article; Peer reviewed, 2020) -
Genetic correlations between challenge tested susceptibility to bacillary necrosis, caused by Edwardsiella ictaluri, and growth performance tested survival and harvest body weight in Mekong striped catfish (Pangasianodon hypophthalmus)
Pham, Khoi Dinh; Ødegård, Jørgen; van Nguyen, Sang; Gjøen, Hans Magnus; Klemetsdal, Gunnar (Peer reviewed; Journal article, 2020) -
Genetic parameters and response to selection for body weight, fillet traits, body size traits and survival in Nile Tilapia (Oreochromis niloticus)
Gulzari, Benan (Master thesis, 2017)This study evaluates the genetic parameters and selection responses in relation to harvest body weight, fillet yield, fillet weight, body size traits (length, depth, thickness) and survival of GenoMar Supreme Tilapia (GST™) ... -
Genetic studies on improvement of striped catfish (Pangasianodon hypophthalmus) for economically important traits
Nguyen, Sang van (PhD Thesis;2010:43, Doctoral thesis, 2010)The aim of this study was to find non-invasive methods for measuring fillet weight, fillet yield and fillet fat on striped catfish (Pangasianodon hypophthalmus), to examine the magnitudes of genetic variance and covariance ... -
Genomic dissection of maternal, additive and non-additive genetic effects for growth and carcass traits in Nile tilapia
Joshi, Rajesh; Meuwissen, Theodorus; Woolliams, John Arthur; Gjøen, Hans Magnus (Peer reviewed; Journal article, 2020) -
Maternal, dominance and additive genetic effects in Nile tilapia; influence on growth, fillet yield and body size traits
Joshi, Rajesh; Woolliams, John Arthur; Meuwissen, Theo; Gjøen, Hans Magnus (Journal article; Peer reviewed, 2018)There are only few studies of dominance effects in non-inbred aquaculture species, since commonly used mating designs often have low power to separate dominance, maternal and common environmental effects. Here, a factorial ... -
Melanin-based skin pigmentation and stress in Atlantic salmon (Salmo salar)
Thorsen, David Krokedal (Master thesis, 2019-05-12)Anybody who has studied, fished for, handled, or consumed Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) will have noticed that the skin of these fishes is typically dappled with black spots. In ... -
Non-additive genetic effects in Nile tilapia
Joshi, Rajesh (PhD Thesis;2018:101, Doctoral thesis, 2018)Nile tilapia (Oreochromis niloticus) is the world’s fastest growing aquaculture species, in terms of annual increase in production (ca 10%) and is today produced world-wide. Most of the commercial and farmed Nile tilapia ...