Evidence of three growth stanzas in rainbow trout (Oncorhynchus mykiss) across life stages and adaptation of the thermal-unit growth coefficient

Dumas, André; Bureau, Dominique

doi:10.1016/j.aquaculture.2007.01.041

Cited by 106 publications

(88 citation statements)

References 38 publications

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“…The rainbow trout thermal growth coefficient of 1.5%-3% of body weight daily was used to calculate the rations (Dumas et al 2007). Fish were fed a commercial salmonid ration containing 44%-55% protein and 15%-22% fat, depending on life stage.…”

Section: Fish Husbandry and Sample Collectionmentioning

confidence: 99%

Co-localization of growth QTL with differentially expressed candidate genes in rainbow trout

Kocmarek

Ferguson

Danzmann

2015

Genome

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Abstract:We tested whether genes differentially expressed between large and small rainbow trout co-localized with familial QTL regions for body size. Eleven chromosomes, known from previous work to house QTL for weight and length in rainbow trout, were examined for QTL in half-sibling families produced in September (1 XY male and 1 XX neomale) and December (1 XY male). In previous studies, we identified 108 candidate genes for growth expressed in the liver and white muscle in a subset of the fish used in this study. These gene sequences were BLASTN aligned against the rainbow trout and stickleback genomes to determine their location (rainbow trout) and inferred location based on synteny with the stickleback genome. Across the progeny of all three males used in the study, 63.9% of the genes with differential expression appear to co-localize with the QTL regions on 6 of the 11 chromosomes tested in these males. Genes that co-localized with QTL in the mixed-sex offspring of the two XY males primarily showed up-regulation in the muscle of large fish and were related to muscle growth, metabolism, and the stress response.Key words: rainbow trout, QTL, neomale, growth.Résumé : Les auteurs ont voulu vérifier si des gènes montrant une expression différentielle chez des grandes et des petites truites arc-en-ciel étaient situés au même endroit dans le génome que des QTL pour la taille. Onze chromosomes, connus comme étant porteurs de QTL pour la masse et la longueur des truites, ont été examinés pour des QTL au sein de familles de demi-frères produits en septembre (1 mâle XY et 1 néo-mâle XX) et en décembre (1 mâle XY). Dans des travaux antérieurs, les auteurs avaient identifié 108 gènes candidats pour la croissance qui sont exprimés chez le foie et les muscles lisses chez un sous-ensemble des poissons analysés dans ce travail. Les séquences de ces gènes ont été alignées (BLASTN) sur les génomes de la truite arc-en-ciel et de l'épinoche pour déterminer leur position (truite arc-en-ciel) ou position inférée sur la base de la synténie avec le génome de l'épinoche. Parmi les progénitures des trois mâles employés dans ce travail, 63,9 % des gènes affichant une expression différentielle ont semblé présenter une co-localisation avec des QTL sur 6 des 11 chromosomes testés chez ces mâles. Les gènes qui co-localisaient avec les QTL au sein des progénitures des deux sexes des deux mâles XY étaient principalement surexprimés chez le muscle des grands poissons et étaient impliqués dans la croissance musculaire, le métabolisme et la réponse aux stress. [Traduit par la Rédaction]

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Section: Fish Husbandry and Sample Collectionmentioning

confidence: 99%

Co-localization of growth QTL with differentially expressed candidate genes in rainbow trout

Kocmarek

Ferguson

Danzmann

2015

Genome

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“…Although addition crystal amino acid improved amino acid profile as FM, it did not improve growth in fry and bigger fish. According to Dumas et al (2007), TGC could be used to distinguish growth stanzas. When we compare the four sizes of gibel carp fed FM diet, the TGC could be divided into three stages, fry and juvenile belonging to different stages, whereas 1 year old and broodstock was the same stage.…”

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confidence: 99%

Effect of substitution of dietary fishmeal by soya bean meal on different sizes of gibel carp (Carassius auratus gibelio): nutrient digestibility, growth performance, body composition and morphometry

et al. 2015

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Four 70-day growth trials were performed to investigate the effects of substitution of dietary fishmeal (FM) by soya bean meal (SBM) in different sizes of gibel carp CASIII (Carassius auratus gibelio). The initial weights of fry, juvenile, 1-year fish and broodstock of gibel carp were 0.8, 5.0, 62.7 and 135.6 g, respectively. In each trial, eight diets were formulated to be iso-nitrogenous and iso-energetic, and different levels of soy bean meal protein were used to replace fishmeal protein at 0%, 20%, 40%, 60%, 80% and 100%. Another diet containing all SBM protein and supplemented with crystalline amino acids was also tested. The results showed that apparent digestibility coefficients (ADCs) of dry matter and energy decreased with SBM substitution while the ADCs of phosphorus increased. The ADCs of protein of high SBM substitution were higher than those of FM groups. Juveniles show lower ADCs than grown-up fish. Dietary SBM substitution showed negative effects on survival, growth and feed utilization in gibel carp. One-year fish and broodstock gibel carp have relatively higher tolerance to dietary SBM than fry and juveniles.

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“…Fish growth was modeled based on the thermal growth coefficient (TGC) from Dumas et al (2007). The two main model assumptions are that growth rate is allometrically related to body weight (W in g) and that growth rate is an allometric constant related to mean daily water temperature averaged over the rearing period (Dumas et al, 2007).…”

Section: Individual Growth Modelmentioning

confidence: 99%

“…Clean-up water was re-used in rearing tanks and only 30 m 3 /day of effluent water was directed to a municipal waste water treatment plant. The bioeconomic model was divided in 3 parts: (1) fish model, estimating individual fish growth using thermal growth coefficient (Dumas et al, 2007) and estimating individual emission of pollutants using massbalance (Cho and Kaushik, 1990;Cowey and Cho, 1991); (2) batch model, estimating the maximum stocking density of a batch according to the two limiting factors, the density at harvest (230 kg/m 3 ) and the maximum treatment capacity of the bio-filter (40 kg of dissolved NH3-N per day); (3) farm model, estimating annual fish production, pollutants emission, feed consumption and finally annual profit by combining technical and economic parameters. Further details about the bioeconomic model are given in appendix 3.1.…”

Section: Bioeconomic Modelmentioning

confidence: 99%

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Matching breeding goals with farming systems to enhance the sustainability of fish farming

Besson¹

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Evidence of three growth stanzas in rainbow trout (Oncorhynchus mykiss) across life stages and adaptation of the thermal-unit growth coefficient

Cited by 106 publications

References 38 publications

Co-localization of growth QTL with differentially expressed candidate genes in rainbow trout

Co-localization of growth QTL with differentially expressed candidate genes in rainbow trout

Effect of substitution of dietary fishmeal by soya bean meal on different sizes of gibel carp (Carassius auratus gibelio): nutrient digestibility, growth performance, body composition and morphometry

Matching breeding goals with farming systems to enhance the sustainability of fish farming

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