Results 11 to 20 of about 1,505 (162)

Tryptophan Reduces Intracohort Cannibalism Behavior in Tropical Gar (Atractosteus tropicus) Larvae

open access: yesFishes
The intracohort cannibalism present in tropical gar larvae (A. tropicus) generates great problems in its culture, as in other fish species around the world.
César Antonio Sepúlveda-Quiroz   +9 more
doaj   +4 more sources

Characterization and Differential Expression of Sex Genes in Adults of Tropical Gar (Atractosteus tropicus)

open access: yesFishes
The tropical gar (Atractosteus tropicus) is a primitive freshwater fish of significant commercial importance in southeastern Mexico. However, its population is in danger due to habitat loss and overexploitation.
Otilio Méndez-Marin   +11 more
doaj   +3 more sources

Modulation of Gene Expression in the Digestive Tract of the Tropical Gar (Atractosteus tropicus) in Response to Cricket Meal (Acheta domesticus)

open access: yesFishes
The tropical gar (Atractosteus tropicus Gill, 1863) is a prehistoric fish of high nutritional value in southern Mexico and Central America. However, some aspects related to the effects caused by alternative protein sources, such as insect meal, as a ...
Fanny Janet De la Cruz-Alvarado   +8 more
doaj   +3 more sources

Use of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae [PDF]

open access: yesFishes, 2017
Tropical gar, Atractosteus tropicus, is a carnivorous fish species from Southern México with high value and acceptance in local markets. Therefore, the present study aims to spare proteins in diets for larviculture of this species. An experiment was performed using three different experimental diets with increasing carbohydrate levels based on potato ...
Carlos Frías-Quintana   +6 more
openaire   +2 more sources

Cost-benefit analysis for the production of juveniles of tropical gar (Atractosteus tropicus Gill): a comparison of four feeding schemes.

open access: yesAgro Productividad, 2021
Objective: To determine the production cost and profitability of different feedingstrategies during the tropical gar larvicultureDesign/methodology/approach: Growth and survival obtained from the evaluationof an experimental diet with maize starch, comparing against the conventionalstrategy (commercial diet for rainbow trout and co-feeding with Artemia
David J. Palma-Cancino   +6 more
openaire   +3 more sources

Effect of β-Glucans in Diets on Growth, Survival, Digestive Enzyme Activity, and Immune System and Intestinal Barrier Gene Expression for Tropical Gar (Atractosteus tropicus) Juveniles [PDF]

open access: yesFishes, 2018
The application of β-1,3/1,6-glucan derived from yeast at five concentrations (0%, 0.5%, 1.0%, 1.5%, and 2.0%) in formulated diets was evaluated in juveniles for its effects on the growth, survival, digestive enzymatic activity, and expression of ...
Karen N. Nieves-Rodríguez   +9 more
doaj   +2 more sources

Range extension of Tropical Gar, Atractosteus tropicus Gill, 1863 (Lepisosteiformes, Lepisosteidae), to the Yucatan Peninsula, Mexico [PDF]

open access: yesCheck List
The distribution of Atractosteus tropicus Gill,1863 is represented by three separate populations, which range from southeastern Mexico to Costa Rica. Herein, we document the first record of A.
Luis Fernando Del Moral-Flores   +4 more
doaj   +5 more sources

Fructooligosaccharide supplementation in diets for tropical gar ( Atractosteus tropicus ) juvenile: Effects on morphophysiology and intestinal barrier function

open access: yesAquaculture Research, 2020
Supplementary fructooligosaccharides (FOS) were evaluated on growth, survival, gut morphology, digestive enzyme activity and expression of intestinal barrier genes in tropical gar (Atractosteus tropicus). Four treatments were designed to include FOS (5, 10, 15 and 20 g/Kg) and were compared with a control (0 g/Kg) and the current commercial trout diet.
Cesar Antonio Sepúlveda‐Quiroz   +11 more
openaire   +3 more sources

Evaluation of Mannan oligosaccharides (MOS) in balanced diets for tropical gar juveniles (Atractosteus tropicus) [PDF]

open access: yesHidrobiológica, 2018
Antecedentes: Los prebióticos son polisacáridos no digestibles por el huésped, pero, por otro lado, son los encargados de estimular la actividad de microorganismos benéficos en el sistema digestivo, lo que puede maximizar la ganancia en peso, la ...
Álvarez-González, Carlos A.   +7 more
openaire   +3 more sources

Corticosteroid and progesterone transactivation of  mineralocorticoid receptors from Amur sturgeon and tropical gar [PDF]

open access: yes, 2016
The response to a panel of steroids by the mineralocorticoid receptor (MR) from Amur sturgeon and tropical gar, two basal ray-finned fish, expressed in HEK293 cells was investigated. Half-maximal responses (EC50s) for transcriptional activation of sturgeon MR by 11-deoxycorticosterone, corticosterone, 11-deoxycortisol, cortisol and aldosterone, and ...
Baker, Michael E
openaire   +2 more sources

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