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Search Results: 1 - 10 of 379874 matches for " J.T. Ponce-Palafox "
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Effects of Protein and Lipids on Growth Performance, Feed Efficiency and Survival Rate in Fingerlings of Bay Snook (Petenia splendida)
J.L. Arredondo-Figueroa,J.J. Matsumoto-Soulé,J.T. Ponce-Palafox,K. Shirai-Matsumoto
International Journal of Animal and Veterinary Advances , 2012,
Abstract: A 120-days trial with three dietary protein levels (30, 40 and 50%, respectively) and two dietary lipid concentrations (6 and 12%, respectively) was conducted to investigate the optimum dietary protein and lipid level for the growth, feed efficiency and survival rate of bay snook fingerlings, P. splendida (0.18±0.05 g initial body weight). A 2x3 factorial experiment in a completely randomized design with three replicates was used. Whole body amino acids and fatty acids analyses were carried out for each diet and calculated growth performance, fed efficiency and survival rate. The results showed a higher survival rate. Final Body Weight (FBW), Feed Efficiency (FE), Protein Efficiency Ratio (PER), Feed Conversion Ratio (FCR) and condition factor (K) was significantly affected by dietary protein level (p<0.05) and FBW, SGR, PER and K were significantly affected by dietary lipids levels (p<0.05). The amino acid composition in diets and whole body was similar and Saturated Fatty Acids (SFA) showed a similar trend; the Polyunsaturated Fatty Acids (PUFA) indicated that 30/12 and 50/12 diets presented high values in whole body, whereas monoenes presented a dissimilar pattern. The best growth was observed with 50/12 diets where the lipid source was corn oil.
Parasitic Helminth Infection in Tropical Freshwater Fishes of Commercial Fish Farms, in Morelos State, Mexico
D. Hernández-Ocampo,R.F. Pineda-López,J.T. Ponce-Palafox,J.L. Arredondo-Figueroa
International Journal of Animal and Veterinary Advances , 2012,
Abstract: The principal aim of this study was realize a helminthological register of the species founded in ornamental fishes cultured in three fish farms and wild fishes existent in the effluents close to these farms in Morelos State, Mexico and an analysis and comparation of the infection values and their relative importance of helminth species invaders associated to ornamental fish industry and their manifestation in wild fishes close to farms. The helminth parasites of freshwater fishes of commercial fish farms, in Morelos State, Mexico were analysed. A total of 419 organisms of six freshwater fish species were collected in three fish farms and in small streams adjacent, in rainy and dry seasons. A total of 40 528 helminth were collected; the metacercarian of the flatworm Centrocestus formosanus affected largest number of host species. There were high levels of infection in all fish for this fluke, specifically for the Mexican molly, Poecilia sphenops it was also found in the native poeciliid fish the Asian tapeworm Botriocephalus acheilognathi, although with lower values in the parameters of infection. A non-deteriorated environment allowed complete the life cycles of parasites, permitting the establishment and maturation in various native and exotic fishes favoured the lack of host specificity of helminths and allogeneic generalists.
Physicochemical, Proximate Composition, Microbiological and Sensory Analysis of Farmed and Wild Harvested White Shrimp Litopenaeus vannamei (Boone, 1931) Tissues
D. Puga-lópez,J.T. Ponce-palafox,G. Barba-quintero,M.R. Torres-herrera
Current Research Journal of Biological Sciences , 2013,
Abstract: Physicochemical, proximate composition, microbiological and sensory analysis of farmed and wild harvested white shrimp Litopenaeus vannamei muscle were compared. The cultured white shrimp were obtained of two farms, whereas the wild shrimp were collected off the coasts of Sinaloa and Nayarit, Mexico. Both, the farmed and wild white shrimp muscle, supplied a good source of protein and polyunsaturated fatty acids. The physicochemical composition, microbiological and sensory properties could be associated to their origin and handling. The wild shrimp tended to have a better proximate composition than the farmed shrimp, due to the availability of a greater diet variety in their environment.
Producción de ensilados biológicos a partir de desechos de pescado, del ahumado de atún aleta amarilla (Thunnus albacares) y del fileteado de tilapia (Oreochromis sp), para la alimentación de especies acuícolas
Spanopoulos-Hernandez, M.;Ponce-Palafox, J.T.;Barba-Quintero, G.;Ruelas-Inzunza, J.R.;Tiznado-Contreras, M.R.;Hernández-González, C.;Shirai, K.;
Revista mexicana de ingeniería química , 2010,
Abstract: the purpose of this study was to produce silage and determine changes in the chemical and microbiological wastes smoked yellowfin tuna (thunnus albacares) and tilapia filleting residue (oreochromis sp), fermented with a commercial inoculum strain lactobacíllus caseí shirota. procedures were used rustic and easy access to materials to be used as fish feed supplement. we determined the optimal ratio of molasses for fermentation, and proximate and microbiological account silage. the waste is mixed with sugar cane molasses as carbon source and commercial inoculums lactobacíllus caseí strain shirota. at the end of six days of fermentation both silages had acceptable physical and chemical characteristics. the proportions of molasses produced the highest acidification were 15 and 20% in both silage and found no significant differences (p < 0.05). total coliforms, molds, yeasts and salmonella sp were not present because they are inhibited by the ensiling process and that have characteristics suitable for use as a supplement in food for aquatic organisms.
Physico-chemical water parameters variation in the floating cages of snappers (Lutjanus peru and L. guttatus) farmed in tropical sea
Vargas-Machuca, S. C.;Ponce-Palafox, J. T.;Arredondo-Figueroa, J. L.;Chávez-Ortiz, E. A.;Vernon-Carter, E.J.;
Revista mexicana de ingeniería química , 2008,
Abstract: the water column in a fish farm was sampled at three depth layers to determine large and short term changes in water quality. the overall goal of this study was to determine the variation of nutrient concentrations in the water column in open-ocean floating cages with cultures of lutjanus peru (pacific red snapper) and l. guttatus (spotted rose snapper). nutrient concentration (ammonia-n, nitrite-n, nitrate-n, and phosphate) were evaluated every fifteen days in the water column at three stations (cages) and two depths; likewise, several water quality parameters were analyzed daily (water temperature, salinity, dissolved oxygen and secchi disk). analyses of water in general showed that no significant differences existed between the monthly concentration of nutrients from the control stations and depths. nitrate was the nutrient with the highest concentration (2.83 to 3.56 mg/l); however, these values were relatively low and normal for these waters. the results show that when working with fish densities of 2500 to 3500 fish/cage and small quantities of food (60 ton/year) no impact is made on the water column quality in the floating cages culture system.
Ammonia and nitrite removal rates in a closed recirculating-water system, under three load rates of rainbow trout Oncorhynchus mykiss
Arredondo-Figueroa, J. L.;Ingle de la Mora, G;Guerrero-Legarreta, I;Ponce-Palafox, J. T.;Barriga-Sosa, I. de los A.;
Revista mexicana de ingeniería química , 2007,
Abstract: nitrification and denitrification rates of inorganic nitrogen were studied in a closed recirculating-water system, comparing three load rates of rainbow trout oncorhynchus mykiss (89, 156 and 194 kg in each tank with two repetitions). six self-cleaning water circular fish tanks with a volume of 4.3 m3 were used, maintaining a 3.94 m3/day of average flow rate and constant aeration. a total of 371 rainbow trout, 524 ± 8 g initial wet weight were introduced in the system and fed with a commercial feed that contained 38% of protein. a total study time of 44 days was divided into three phases of 14, 17 and 13 days according to the load fish rate. temperature, dissolved oxygen, ph, total ammonia nitrogen (tan), un-ionized ammonia, nitrite and nitrate were daily evaluated at four monitoring sites: fish tank (ft), settling tank (st), biofilter (b) and reconditioning tank (rt). water physicochemical characteristics and their fluctuations played an important role in treatment efficiency. water temperature varied between 18 °c and 20.5 °c and dissolved oxygen from 4.6 to 7.7 mg/l. the lowest values of these two variables were registered in the st where all wastes accumulate. no significant differences (p<0.05) were observed in ph values (8.3-8.6). these conditions allowed good nitrification and denitrification rates. tan varied from 0.2 to 1.96 mg/l; however, this value was 80% lower in the outlet (rt) as compared to the inlet (st). the load fish rate caused a significant difference (p<0.05) in tan and non-ionized ammonia in the ft with the lowest value for 89 kg load density as compared to 156 and 194 kg respectively. conversely, nitrite concentration did not show a significant difference (p>0.05) among load fish rate. nitrate concentration had an accumulative tendency at 156 kg load rate batch up to 30 days with a further decrease. the results showed that a reduction of load rate did not change apparently the equilibrium of bacteria population. therefore, it is possible to c
Performance of Brooders, Fry and Growth of the Nile Tilapia (Oreochromis niloticus) Cultured in an Experimental Recirculating Aquaculture System  [PDF]
José Luis Arredondo-Figueroa, Laura Georgina Nú?ez-García, Jesús T. Ponce-Palafox, Irene de Los ángeles Barriga-Sosa
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.69096
Abstract: We present results of a long-term study aimed to optimize Nile tilapia O. niloticus production in a recirculating aquaculture system (RAS) in México City. Three experiments were evaluated: 1) fry production; 2) production of masculinized fries; and 3) assessment of growth under three different densities (10, 30 and 75 fish/m3). The broodstock produced on average 2400 ± 600 fry every 15 days during six months, with a total production of 28,800 ± 2000. One hundred percent males were produced in 274-L raceways in an eight-week period. The obtained results in fish production in the RAS system indicated variations related to density. A daily growth rate of 3.6 g/day was registered with a density of 10 fish/m3, 0.9 g/day in 30 fish/m3 and 0.4 g/day in 75 fish/m3. This information could be useful for production purposes in this type of systems.
Effect of the initial stocking body weight on growth of spotted rose snapper Lutjanus guttatus (Steindachner, 1869) in marine floating cages
Castillo-Vargasmachuca,Sergio; Ponce-Palafox,Jesús T; Chávez Ortíz,Ernesto; Arredondo-Figueroa,José Luis;
Revista de biología marina y oceanografía , 2007, DOI: 10.4067/S0718-19572007000300006
Abstract: spotted rose snapper were stocked at body weight sizes of 24.5 ± 3.7 g, 55.4 ± 3.5 g, and 110.2 ± 4.6 g in three replicated marine floating cages of 100 m3 and reared for 153 days at santa cruz de miramar in nayarit, mexico, to determine the appropriate stocking body weight size. caged snapper were fed twice a day with commercial pellets containing 35% crude protein during the first three months and 25% during the last two months, respectively. the water temperature of cages ranged from 25.6 to 32.3°c. mean survival ranged from 67.5 to 74.7%. stocking body weight sizes of snapper exerted significantly different (p≤0.05) effects on the final biomass. the maximum mean weekly weight gain was 12.8 g week-1 in cages with the 110.2 ± 4.6 g body weight size. these results suggest, as a good strategy, the introduction of snappers with a total weight of 110 g for grow out in marine cages culture
El desarrollo sostenible de la acuicultura en América Latina (The sustainable development of the acuicultura in Latin America)
Jesús T. Ponce-Palafox,Oscar Romero Cruz,Sergio Castillo Vargasmachuca,Raúl González Sala
REDVET , 2006,
Abstract: América Latina y el Caribe han experimentado una rápida expansión en su producción acuícola (16.4% anual durante la década de los 90). El presente trabajo tiene la finalidad de hacer un análisis de la situación de la región y determinar sus perspectivas de acuerdo al comportamiento actual de la industria. Chile presenta el crecimiento más rápido en la región con un crecimiento anual de casi 20%. La producción acuícola se concentra en los salmónidos principalmente en Chile y en los camarones marinos en el Ecuador, México, Honduras, Colombia, Peru, Panamá y Belice, estos productos son principalmente para la exportación. El cultivo de la tilapia en Brasil, Colombia, Costa Rica, Cuba, Ecuador, México y Jamaica tiene la tasa de crecimiento más alta en la región y se exporta el 50%. La producción de carpa es importante en Brasil, Cuba y México. El pez nativo que más ha aumentado su producción es el Colossoma spp en Brasil, Colombia y Venezuela.. Pero también, se debe de revalorar la acuicultura de subsistencia y semicomercial como una estrategia nacional para generar empleos directos e indirecto a las zonas marginadas, contribuir a la producción de proteína de alto valor nutricional y disminuir la pobreza. Latin America and the Caribbean have experienced a quick expansion in their aquatic production (16.4 annual% during the decade the 90). The present work has the purpose to make an analysis of the situation the region and to determine its perspectives according to the current behavior gives the industry. Chile presents the quickest growth in the region with an annual growth 20%.The aquatic production concentrates mainly on the salmon in Chile and in the marine shrimps in the Ecuador, Mexico, Honduras, Colombia, Peru, Panama and Belize, these products are mainly for the export. The cultivation the tilapia in Brazil, Colombia, Costa Rica, Cuba, Ecuador, Mexico and Jamaica has the highest rate of growth in the region and 50% is exported. Carp production it is important in Brazil, Cuba and Mexico. The native fish that more has increased his production is the Colossoma spp in Brazil, Colombia and Venezuela. But also, it owes to revalue the aquaculture subsistence and commercial low as a national strategy to generate direct and indirect employments to the excluded areas, to contribute to the production protein high nutritional and to diminish the poverty.
Effect of organic carbon input on water and sediment quality in a lutjanid sea-cage farm
Flores,Miguel ángel; Ponce-Palafox,Jesús T; Castillo-Vargasmachuca,Sergio; Santana-Hernández,Heriberto; Arredondo-Figueroa,José Luis;
Revista de biología marina y oceanografía , 2009, DOI: 10.4067/S0718-19572009000100024
Abstract: resumen se analizó el efecto de la entrada de carbón orgánico en la calidad del sedimento y su correlación con la interfase agua-sedimento y las condiciones hidrográficas en una granja de lutjánidos en jaulas marinas. los resultados indican que se presenta una correlación de la temperatura del agua y el potencial de oxido reducción en la zona más profunda de la columna de agua con el contenido de carbón orgánico (ioc) en el sedimento. este resultado permite contar con una herramienta de fácil acceso para conocer en una forma indirecta el enriquecimiento orgánico del sedimento.
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