scholarly journals Programación nutricional en el pejelagarto (Atractosteus tropicus): efecto del almidón de maíz sobre la bioquímica sanguínea

2021 ◽  
Vol 5 (6) ◽  
pp. 11853-11867
Keyword(s):  
Atractosteus Tropicus

El pejelagarto es una especie carnívora, en la que se ha demostrado una mejora en el crecimiento durante el larvicultivo al incluir almidón de maíz en su dieta, así como una eficiencia en la ruta de la gluconeogénesis al utilizar hasta 23% de carbohidratos en sus dietas. El objetivo de esta investigación fue determinar si el uso de almidón de maíz en el larvicultivo puede producir un afecto de programación metabólica, determinado mediante la bioquímica sanguínea durante la etapa juvenil. Los peces fueron divididos en 3 grupos, los cuales se alimentaron durante 73 días con las dietas experimentales, que tenían diferente porcentaje de inclusión de almidón de maíz (13.8, 22.5 y 28.9 % de carbohidratos). Posteriormente, los peces de los 3 grupos fueron sometidos a una prueba de tolerancia a la glucosa y se midió la concentración de glucosa, triglicéridos y colesterol a las 0, 1.5, 3 y 5 h después de aplicar una descarga de dextrosa intraperitonealmente. Los resultados demuestran que la concentración de carbohidratos y lípidos suministrada mediante la dieta durante la etapa temprana de crianza puede modificar de forma permanente las concentraciones de glucosa y triglicéridos en plasma de los pejelagartos juveniles.

Partial sequence characterization and ontogenetic expression of genes involved in lipid metabolism in the tropical gar ( Atractosteus tropicus )

2018 ◽  
Vol 50 (1) ◽  
pp. 162-172 ◽  
Author(s):  
Luis D. Jiménez‐Martínez ◽  
Carlos A. Álvarez‐González ◽  
Erick De la Cruz‐Hernández ◽  
Dariel Tovar‐Ramírez ◽  
Mario A. Galaviz ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Partial Sequence ◽  
Sequence Characterization ◽  
Expression Of Genes ◽  
Tropical Gar ◽  
Atractosteus Tropicus

Partial characterization of digestive proteases in tropical gar Atractosteus tropicus juveniles

2013 ◽  
Author(s):  
R. Guerrero-Zárate ◽  
C. A. Alvarez-González ◽  
M. A. Olvera-Novoa ◽  
N. Perales-García ◽  
C. A. Frías-Quintana ◽  
...  
Keyword(s):  
Partial Characterization ◽  
Digestive Proteases ◽  
Tropical Gar ◽  
Atractosteus Tropicus

The complete mitochondrial DNA of the tropical gar (Atractosteus tropicus)

2014 ◽  
Vol 27 (1) ◽  
pp. 557-558 ◽  
Author(s):  
Miguel A. Del Río-Portilla ◽  
Carmen E. Vargas-Peralta ◽  
Fabiola Lafarga-De La Cruz ◽  
Lenin Arias-Rodriguez ◽  
Rigoberto Delgado-Vega ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Tropical Gar ◽  
Atractosteus Tropicus

Trypsin gene expression in adults and larvae of tropical gar Atractosteus tropicus

2019 ◽  
Vol 46 (1) ◽  
pp. 145-155
Author(s):  
Kristal de M. Jesús-De la Cruz ◽  
Ángela Ávila-Fernández ◽  
Emyr Saúl Peña-Marín ◽  
Luis Daniel Jiménez-Martínez ◽  
Dariel Tovar-Ramírez ◽  
...  
Keyword(s):  
Gene Expression ◽  
Tropical Gar ◽  
Atractosteus Tropicus

Digestive enzymatic activity on Tropical gar (Atractosteus tropicus) larvae fed different diets

2011 ◽  
Vol 38 (3) ◽  
pp. 679-691 ◽  
Author(s):  
Carlos Aguilera ◽  
Roberto Mendoza ◽  
Israel Iracheta ◽  
Gabriel Marquez
Keyword(s):  
Enzymatic Activity ◽  
Tropical Gar ◽  
Atractosteus Tropicus

scholarly journals 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

Fishes ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 27 ◽  
Author(s):  
Karen Nieves-Rodríguez ◽  
Carlos Álvarez-González ◽  
Emyr Peña-Marín ◽  
Fernando Vega-Villasante ◽  
Rafael Martínez-García ◽  
...  
Keyword(s):  
Gene Expression ◽  
Enzyme Activity ◽  
Immune System ◽  
Digestive Enzyme ◽  
Intestinal Barrier ◽  
Digestive Enzyme Activity ◽  
Tropical Gar ◽  
Atractosteus Tropicus

scholarly journals Bioeconomic profitability analysis of tropical gar (Atractosteus tropicus) grow out using two commercial feeds

2019 ◽  
Vol 47 (3) ◽  
pp. 433-439
Author(s):  
David Palma ◽  
Rafael Martinez ◽  
Carlos Alvarez ◽  
Ronald Contreras ◽  
Eucario Gasca ◽  
...  
Keyword(s):  
Profitability Analysis ◽  
Tropical Gar ◽  
Commercial Feeds ◽  
Atractosteus Tropicus

scholarly journals Dietary live yeast (Debaryomyces hansenii) provides no advantages in tropical gar, Atractosteus tropicus (Actinopterygii: Lepisosteiformes: Lepisosteidae), juvenile aquaculture

2021 ◽  
Vol 51 (3) ◽  
pp. 311-320
Author(s):  
Iris Adriana Hernández-López ◽  
Dariel Tovar-Ramírez ◽  
Susana De la Rosa-García ◽  
Carina Shianya Álvarez-Villagómez ◽  
Gloria Gertrudys Asencio-Alcudia ◽  
...  
Keyword(s):  
Transforming Growth Factor ◽  
Digestive Enzyme ◽  
Control Diet ◽  
Debaryomyces Hansenii ◽  
Daily Weight Gain ◽  
Fish Feed ◽  
Southern Mexico ◽  
Tropical Gar ◽  
Atractosteus Tropicus ◽  
Live Yeast

Tropical gar, Atractosteus tropicus Gill, 1863, is an ancient freshwater fish that is commercially cultivated in southern Mexico. Currently, there is a specific diet for its culture; however, the addition of probiotics has not been investigated. The objective of this study was to evaluate the supplementation of live yeast Debaryomyces hansenii for A. tropicus juveniles on growth, productive parameters, survival, somatic index, digestive enzyme activity, and immune system gene expressions (interleukin 10, il-10, Transforming growth factor β1, tgf-β1, and β2 microglobulin, b2m). Three experimental diets increased the dose of live yeast (0.5, 1.0, and 1.5%; 1014, 1015, and 1016CFU g diet–1, respectively) and a control diet (CD; without yeast) were designed. Daily weight gain and specific growth rate were higher in fish fed with CD and 0.5% D. hansenii. High activities of trypsin, chymotrypsin LAP, and α-amylase, as well as overexpression of il-10 in the spleen, were detected in fish feed 0.5% D. hansenii. The inclusion of D. hansenii had no positive effect on aquaculture for A. tropicus, lower doses should be tested to optimize the diet.

scholarly journals Gut Microbiome Analysis In Adult Tropical Gars (Atractosteus tropicus)

2019 ◽  
Author(s):  
Roberto Méndez-Pérez ◽  
Rodrigo García-López ◽  
J. Santiago Bautista-López ◽  
Jorge F. Vázquez-Castellanos ◽  
Emyr S. Peña-Marín ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Gut Microbiome ◽  
Aeromonas Hydrophila ◽  
Illumina Miseq ◽  
Gut Contents ◽  
Estuarine Fish ◽  
Southern Mexico ◽  
Bacterial Gene ◽  
Sequencing Platform ◽  
Atractosteus Tropicus

AbstractTropical gar (Atractosteus tropicus), is freshwater and estuarine fish that has inhabited the Earth since the Mesozoic era, undergoing limited physiological variation ever since. This omnivorous fish is endemic to southern Mexico and part of Central America. Besides its recognized cultural and scientific relevance, the species has seen remarkable growth in its economic impact due to pisciculture. Previous studies have highlighted the role of microbial communities in fish, particularly those in the gut microbiome, in maintaining their host homeostasis or disease. In this study, we present the first report of the whole taxonomic composition of microbial communities in gut contents of adults’A. tropicus, by sex (female/male) and origin (wild/cultivated). Using culture-independent techniques, we extracted metagenomic DNA that was used for high throughput 16S rDNA profiling by amplifying the V4 – V5 hypervariable regions of the bacterial gene. A total of 364,735 total paired-end reads were obtained on an Illumina MiSeq sequencing platform, belonging to 508 identified genera, with the most and least abundant areCetobacterium, Edwardsiella, Serratia, Clostridium sensu stricto, PaludibacterandCampylobacter, Snodgrassella, Albirhodobacter, Lentilitoribacter, respectively. We detected that, by sex and origin, Proteobacteria, Fusobacteria, Firmicutes and Bacteroidetes phyla are the core gut microbiome of the adults’A. tropicus. We discover the Deinococcus-Thermus phylum sequence, wildtype males only, with extremophile capacity in another freshwater fish. We also identified the speciesLactococcus lactisstrains CAU929 and CAU6600, Cp6 and CAU9951,Cetobacteriumstrain H69,Aeromonas hydrophilastrains P5 and WR-5-3-2,Aeromonas sobriastrain CP DC28 andAeromonas hydrophilawith probiotic potential in aquaculture within the three dominant phyla, especially in wild-type organisms.

scholarly journals Evaluación de alimentos microencapsulados en el cultivo de larvas de pejelagarto (Atractosteus tropicus)

2018 ◽  
Vol 66 (3) ◽  
pp. 1298
Author(s):  
Miguel Saenz de Rodrigáñez ◽  
Federico Vladymir Aguilar-Tellez ◽  
Francisco Javier Alarcón-López ◽  
Ruth Pedrosa-Islas ◽  
Emyr Saul Peña-Marín ◽  
...  
Keyword(s):  
Enzyme Preparation ◽  
Fish Meal ◽  
Control Diet ◽  
Control Treatment ◽  
Nannochloropsis Gaditana ◽  
Growth And Survival ◽  
Artemia Nauplii ◽  
Design And Manufacturing ◽  
Tropical Gar ◽  
Atractosteus Tropicus

Four microencapsulated diets were evaluated with respect to the growth and survival of tropical gar Atractosteus tropicus larvae. The treatments consisted of four experimental diets and one control diet 1) fish meal, 2) a combination of pork and poultry meals, 3) Nannochloropsis gaditana meal, 4) enzyme preparation and the control treatment 5) Artemia nauplii. The evaluation indicated that the larvae fed the Artemia nauplii obtained the greatest growth and survival (3.93 cm, 0.19 g y 82 % respectively), which justifies a correct culture system operation. While larvae fed microencapsulated diets best values in survival were observed with diets Nannochloropsis gaditana and enzyme preparation (20.0 and 19.2 %). Our results showed that microencapsulated could be used to feed A. tropicus in feasibly form. However, more information concerning to optimize the design and manufacturing are required to improve the growth and survival of organisms.

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