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| Registros recuperados: 84 | |
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| Machado Tamayo, R.. |
| To monitor the genetic variability of L.vannamei shrimp-specie as founder stock and their correspondent first generation (F1), four microsatellite DNA loci species-specific for these animals were used. Data from allelic diversity (size, number and frequency of alleles) and levels of hetrozygozity were obtained as measures of genetic diversity. The protocol used is belonging to the lab, from the Norwegian College of Fishery science (NFH) of the University of Tromsø (Uitø). The results indicated a decrease in some of measures for genetic diversity. The number of allele (Na) ranged from 1-9 and their effectives number of alleles (ne) from 1.1 to 6.72. The mean value observed heterozygosity (Ho) by populations range from 0.29 to 0.63, which were lower than the... |
| Tipo: Preprint |
Palavras-chave: Aquaculture; Shrimp culture; Aquaculture; Http://aims.fao.org/aos/agrovoc/c_550. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1522 |
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| Pérez Santos, I.E.; Arencibia Carballo, G.; Capetillo Piñar, N.; Isla Molleda, M.. |
| In this work the result of the project “Determination of the environmental impact on aquaculture in the coastal zone" is presented. Where there were sampled more than 28 points. The water quality of the ecosystems is studied around the shrimp farms like coastal lagoons, rivers and the coastal area, where the shrimp farm get the water from, and at the same time the waste water of the process is spilled. The obtained values of the analisis in water and silts give a valuation of the environmental state of the area; revealing that the lagoon Las Playas is in a not well environmental state, (salinity of 47 ppt, DQO between 3,26 and 6,14 mg/L, N-NO3 700 - 900 µg/L, ammonium 36 - 148 µg/L and silicates between the 1600 and 3400 µg/L) and silts (carbon and... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Shrimp culture; Environmental impact; Ecosystems; Coastal zone; Water quality; Environmental impact; Ecosystems; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2482. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1884 |
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| Galindo, J.; Barbarito, J.; Fraga, I.; Alvarez, J.S.. |
| Se evaluó el efecto de la zeolita como aditivo en el alimento de postlarvas y juveniles de camarón blanco Litopenaeus schmitti (0.8 ± 0.02 mg y 2.35 ± 0.1 g de peso inicial promedio respectivamente). Los bioensayos tuvieron una duración entre 30–50 días y se ensayaron alimentos balanceados elaborados a base de materias primas convencionales con diferentes niveles de inclusión de zeolita. Los niveles de zeolita ensayados no afectaron la supervivencia de las postlarvas y juveniles. Las postlarvas que consumieron la dieta con 1% de zeolita alcanzaron los mayores crecimientos (p<0.05). La inclusión de este ingrediente mejoró significativamente el factor de conversión del alimento en ambos grupos experimentales. La relación entre el nivel de inclusión de... |
| Tipo: Journal Contribution |
Palavras-chave: Zeolites; Shrimp culture; Zeolites; Http://aims.fao.org/aos/agrovoc/c_15928. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2619 |
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| Balsinde, M.; Fraga, I.; Galindo, J.. |
| The artificial feeds elaboration for aquatic species, it has always used as conventional technology of pelletized prosecution. The artificial balanced feeds production for the commercial breeding of the shrimp constitutes the base of the feeding of most of the cultures of aquatic species in Cuba. In this work three diets were elaborated by the extrusion technology substituting flour of having fished by silage, according to the nutritional requirements recommended for the white shrimp (Litopenaeus schmitti) the used inclusion percents were the following ones: (Diet I = 16%, Diet II = 20.5% and Diet III = 27%). starting from the nutritional answer of the animals that was evaluated by the parameters Factor of Conversion of the Food (FCA) and Gain in Weight of... |
| Tipo: Proceedings Paper |
Palavras-chave: Fish silage; Shrimp culture. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/2078 |
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| Flores Gutiérrez, E. R.; Espino Martínez, R.; Wong Wong, C.; Pérez Luis, M.. |
| The absorption and loss of the sulfhite in the shrimp has great importance in their post-crop handling, since the sulfhite residual can give a measure of the protection that presents the shrimp against the appearance of the melanosis. Shrimps were taken and underwent to a treatment in solution of MBS to 8 % using different times of immersion, being determined the residual of sulfhite in the product obtained in each case. Additionally, the shrimps tried during five minutes were placed in plastic containers with ice in proportion 1:1, those that were storaged in a refrigeration camera to a temperature between 7 and 10 °C during five days. The residual ones were determined every day with the objective of quantifying the losses that take place during the... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp culture; Absorption (physics). |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3448 |
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| Jaime Ceballos, B.; Villareal, H.; Garcia, T.; Pérez Jar, L.; Alfonso, E.. |
| To evaluate the effect of Spirulina platensis inclusion in microdiets for white shrimp Litopenaeus schmitti larvae, a completely randomized experimental design was developed with 4 treatments and three replicates. Diets with 3 inclusion levels (0, 2.5 and 5%) were prepared. A control was fed Artemia nauplii. Larvae were fed for 120 hours from mysis I to postlavae 1 every 4 h, and water quality parameters were measured daily. At the end of the experiment survival was determined, and the development index of the larvae was calculated. The chemical score of the diet was also determined, using the L. schmitti postlarvae amino-acid pattern as reference. Triptophan and hystidine were the first and second limiting amino acids in the diets. Survival was around 80%... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp culture; Feeding experiments; Diets. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1891 |
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| Villamil-Díaz, L.; Martínez-Silva, M.A.. |
| Las bacterias probióticas se definen como microorganismos vivios que administrados como suplemento en la dieta pueden causar modificaciones en la microbiota asociada al tracto gastrointestinal del hospedador y generar efectos benéficos como el cincremento en la conversión alimantaria, en la resistencia a enfermedades y de la calidad del agua. Durante la última década, su aplicación en el cultivo de camarón se ha hecho frecuente ya que han rugido varios productos comerciales ideados para este fin. Al mismo tiempo, aunque hay publicados varios artículos científicos en el tema, es evidente que hace falta orientar los estudios para entender los mecanismos de acción de los probióticos, así como para establecer los protocolos de aplicación, teniendo en cuenta... |
| Tipo: Journal Contribution |
Palavras-chave: Bacteria; Shrimp culture; Bacteria; Http://aims.fao.org/aos/agrovoc/c_765. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3615 |
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| Alvarez, J.S.; Sorí, M.A.; Pelegrin, E.; Galindo, J.. |
| Esta investigación se realizó en la camaronera CULTIZAZA, Sancti Spiritus, ante la necesidad de continuar profundizando sobre el comportamiento alimentario del camarón blanco del Pacífico Litopenaeus vannamei, como una vía más para mejorar las condiciones financieras y salud de la camaronicultura cubana. Los resultados indicaron que en época de invierno se requiere de mayor vigilancia en el manejo del alimento en los estanques de cultivo respecto al verano, para evitar suministros innecesarios de alimento que incrementarían la contaminación en los estanques, las situaciones de estrés y aparición de enfermedades que conspiran finalmente con la rentabilidad de la granja. |
| Tipo: Book Section |
Palavras-chave: Feeding; Shrimp culture; Feeding; Http://aims.fao.org/aos/agrovoc/c_2838. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4015 |
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| Fraga, I.; Galindo, J.; Jaime, B.. |
| Un diseño experimental completamente aleatorizado se desarrolló, durante 7 semanas, para evaluar el efecto de niveles de inclusión (0, 5, 10 y 15%) de harina de cangrejo (HC) Gecarcinus ruricola, sobre el crecimiento del camarón Litopenaeus schmitti. Los juveniles de camarón (peso medio inicial 0.44 ± 0.02 g), se distribuyeron en recipientes con 40 L de agua de mar a una densidad de 17.8 g/m2. El contenido de metales pesados (Pb, Cd, Cu, Zn) de la HC, dietas y camarones, se determinó por el método de absorción atómica. La calidad proteica de los alimentos experimentales se evaluó por el método del cómputo químico. Las dietas que contenían HC promovieron los más altos crecimientos (P< 0.05). Los juveniles que consumieron alimento con 5% de HC... |
| Tipo: Journal Contribution |
Palavras-chave: Balanced diets; Crab culture; Shrimp culture; Fish meal. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4607 |
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| Kontara, E.K.M.; Merchie, G.; Lavens, P.; Robles, R.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.. |
| L-ascorbyl-2-polyphosphate (ApP) was used as a vitamin C source to study the ascorbic acid (AA) requirements for the early postlarval stages of white shrimp (<i>Penaeus vannamei</i>). First the stability of ApP in the diets was determined: ApP losses after pelletizing and 10 min immersion in seawater were 25-35% and 30%, respectively. Semipurified diets with five levels of ApP (0, 20, 40, 100 and 200 mg kg<sup>-1</sup> expressed as active AA were fed <i>ad libitum</i> to <i>P. vannamei</i> (PL-14 stage, mean dry weight 0.73 mg) for 26 days. Each treatment was run in five replicates. No significant differences in growth were observed among treatments after 26 days of feeding. As of day 19 of feeding, increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diets; Polyunsaturated fatty acids; Shrimp culture; Penaeus vannamei. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2959 |
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| Tosta,Gitonilson Antonio Moreira; Albinati,Ricardo Castelo Branco; Carvalho,Gleidson Giordano Pinto de; Carvalho,Jaciane Vergne de; Souza Filho,José Jerônimo de; Vasconcelos,Fabíola Rios; Kuhnen,Vanessa Villanova; Sanches,Eduardo Gomes. |
| Abstract: The objective of this work was to evaluate different feeding rates on the productive performance of cobia (Rachycentron canadum) grown in brackish waters. For the experiment, 1,600 juveniles were distributed in 16 enclosures installed in an estuarine pond. Four different feeding rates were evaluated: 1, 3, 5, and 7% live weight (LW) per day. The following performance parameters were assessed: survival, final biomass, specific growth rate, daily weight gain, apparent feed conversion, protein efficiency rate, lipid efficiency rate, and hepatosomatic index. Survival was greater than 80% at all feeding rates. The most efficient feed conversion rate was obtained with the feeding rate of 5% LW per day, which also resulted in better values for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rachycentron canadum; Feeding management; Hepatosomatic index; Mariculture; Shrimp culture. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101106 |
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| Registros recuperados: 84 | |
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