Results 31 to 40 of about 1,001 (149)
Determination of optimal prey for rearing tropical gar Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) [PDF]
Revista de Biología Tropical, 2018 Larval feeding studies of both ornamental and consumable fish species are important for formulating successful management, and culture strategies for conservation purposes. In the present study, we evaluated prey selectivity for the tropical gar Atractosteus tropicus in the larval stage (first 8 weeks) using the zooplankton Artemia fransiscana, Daphnia
Luis Humberto Escalera-Vázquez +4 more
core +8 more sources
Tryptophan Reduces Intracohort Cannibalism Behavior in Tropical Gar (Atractosteus tropicus) Larvae
FishesThe 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
Revista de Biología Tropical, 2009 El cariotipo del pejelagarto Atractosteus tropicus se describe por medio de tinción Giemsa de 295 preparaciones cromosómicas en mitosis a partir de 120 larvas y 15 adultos (5 hembras y diez machos) de la población que habita en Tabasco, sureste de México.
Lenin Arias-Rodríguez +3 more
doaj +1 more source
FishesThe 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
Revista de Biología Tropical, 2012 En el sureste de México A. tropicus es una especie de gran importancia ecológica, económica, cultural y para acuicultura, sin embargo, sus poblaciones silvestres han disminuido a causa de diversas actividades antropogénicas, por lo que se caracterizó el ...
Otilio Méndez-Marin +4 more
doaj +1 more source
Improvement of Fish Growth and Metabolism by Oligosaccharide Prebiotic Supplement. [PDF]
Aquac Nutr, 2022 Finfish aquaculture is expected to continue to benefit from significantly improved fish diets, which are the source of energy to support the growth and health of fish. Strategies to enhance the transformation rate of dietary energy and protein to fish growth are greatly desired by fish culturists. Prebiotic compounds can be used as supplements to human,
Xu W, Lutz CG, Taylor CM, Ortega MC.
europepmc +2 more sources
Revista de biologia tropical, 2013 In Southeast Mexico, A. tropicus is a species with great ecological, economic, cultural and aquaculture value, however wild populations have diminished due to diverse anthropological causes. The objective of this study was to characterize the reproductive cycle of A.
Otilio, Méndez-Marin +4 more
openaire +3 more sources
Early Mild Stress along with Lipid Improves the Stress Responsiveness of Oscar (Astronotus ocellatus). [PDF]
Aquac Nutr, 2022 Early‐life exposure to mild stressors can assist animals in coping with more stressful events in later life. This study was aimed at investigating how early stress and dietary lipid contents affect growth, hematology, blood biochemistry, immunological responses, antioxidant system, liver enzymes, and stress responses of oscar (Astronotus ocellatus) (6 ...
Esmaeili N +4 more
europepmc +2 more sources
The hepatopancreas microbiome of velvet crab, Necora puber. [PDF]
Environ Microbiol RepWe provide the first description of the hepatopancreas microbiome of the velvet crab, Necora puber, identifying a microbial community dominated by Candidatus hepatoplasma and the presence of a core microbiome. We also investigate the variation explained by our study factors: crab sex, parasite infection status, and two different sampling time points ...
Martin S +8 more
europepmc +2 more sources
Changes in Digestive Enzyme Activities during Larval Development of Spotted Seatrout (Cynoscion nebulosus). [PDF]
Aquac NutrThe spotted seatrout (Cynoscion nebulosus)—an important commercial species—has a high potential for aquaculture in the Gulf of Mexico. To optimize its feeding during larval rearing, this study aims to evaluate the primary gastric (pepsin), intestinal (leucine aminopeptidase and alkaline phosphatase), and pancreatic (alkaline protease, trypsin ...
Arenas-Pardo MA +7 more
europepmc +2 more sources