Results 21 to 30 of about 1,055 (152)

Esquemas de alimentación para larvicultura de pejelagarto (Atractosteus tropicus Gill): crecimiento, supervivencia y canibalismo [PDF]

open access: yesEcosistemas y Recursos Agropecuarios, 2019
El diseño de dietas con base en la fisiología digestiva, así como un adecuado esquema de alimentación, per- miten la disminución del canibalismo y el incremento de la supervivencia en la etapa larvaria de peces.
David Julian Palma-Cancino   +4 more
doaj   +3 more sources

Predation by Atractosteus tropicus on Bufo marinus and its possible affect on population in a lowland tropical wet rainforest [PDF]

open access: yes, 2022
Fish predation can affect amphibian populations. Most examples report invasive fish species and their negative effect on specific amphibians. Here we provide an occurrence of natural fish predation by the tropical gar Atractosteus tropicus on the cane toad Bufo marinus. We observed physical damage caused by A. tropicus attacking B. marinus.
Todd R Lewis   +3 more
core   +4 more sources

Survival, Growth, and Development in the Early Stages of the Tropical Gar Atractosteus tropicus: Developmental Critical Windows and the Influence of Temperature, Salinity, and Oxygen Availability

open access: yesFishes, 2021
Alterations in fish developmental trajectories occur in response to genetic and environmental changes, especially during sensitive periods of development (critical windows).
Gil Martínez   +5 more
doaj   +2 more sources

Inulin Supplementation in Diets for Tropical Gar (Atractosteus tropicus) Larvae: Effects on Growth, Survival, and Digestive and Antioxidant Enzyme Activities

open access: yesAquaculture Journal, 2023
The effect of adding inulin to balanced diets for tropical gar (Atractosteus tropicus) larvae on growth, survival, digestive enzyme activity, and antioxidant activity was evaluated.
Eduardo De La Cruz-Marín   +11 more
doaj   +2 more sources

Sex-specific differences in transcriptome profiles of brain and muscle tissue of the tropical gar [PDF]

open access: yesBMC Genomics, 2017
Background The tropical gar (Atractosteus tropicus) is the southernmost species of the seven extant species of gar fishes in the world. In Mexico and Central America, the species is an important food source due to its nutritional quality and low price ...
Kayla M. Cribbin   +4 more
doaj   +2 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

Effects of Dietary Sodium Propionate on Growth, Digestive Enzyme Activity, and Expression of Immune System Genes in Juveniles of Tropical Gar (Atractosteus tropicus)

open access: yesAquaculture Journal, 2023
We determined the effects of sodium propionate (SP) added to the diets of Atractosteus tropicus juveniles with respect to the growth, survival, digestive enzyme activity, and expression of genes that are associated with the immune system. Five treatments
Jesús G. Arellano-Carrasco   +11 more
doaj   +2 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.   +14 more
core   +4 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   +2 more sources

Incorporation of Fructooligosaccharides in Diets Influence Growth Performance, Digestive Enzyme Activity, and Expression of Intestinal Barrier Function Genes in Tropical Gar (Atractosteus tropicus) Larvae

open access: yesFishes, 2022
This study was conducted to investigate the effects of dietary fructooligosaccharides (FOS) on the growth, survival rate, digestive enzyms activity, and the expression of intestinal barrier function genes in tropical gar (Atractosteus tropicus) larvae. A
Graciela M. Pérez-Jiménez   +12 more
doaj   +2 more sources

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