861 resultados para fish parasite


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This study was materialized to analyze the management issues regarding the seafood processing waste generated including its impact on the coastal community in one of the important seafood hubs of India Aroor Seafood Industrial Belt Alappuzha District Kerala The area has witnessed serious pollution issues related to seafood waste and seldom has any action been implemented by either the polluters or the preventers Further this study is also intended to suggest a low cost eco friendly method for utilizing the bulk quantity of seafood solid waste generated in the area for the promotion of organic farming The high nutritional value of seafood enables the subsequent offal to be considered as an excellent source for plant nutrition The liquid silage accepted worldwide as the cheapest and practical solution for rendering fish waste in bulk for production of livestock feed is adopted in this study to develop foliar fertilizer formulations from various seafood waste The effect of seafood foliar sprays is demonstrated by field studies on two plant varieties such as Okra and Amaranthus

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In fish processing plants, there is huge amount of skin that is left as the waste. When this skin is taken and processed into fish collagen, it will save large amount of money that is used for extraction of collagen from other animal s.Fish collagen can be used as an alternative to replace mammalian collagen, especially collagen extracted from bovine, when we consider the outbreak of bovine spongiform encephalopathy (BSE), transmissible spongiform encephalopathy (TSE) and the foot - and-mouth disease (FMD) issues. BSE and TSE are progressive neurological disorders affecting cattles caused by proteinacious infectious particles called prions.The study aims in producing collagen that has been extracted from fish skin to replace other animal collagen so as to overcome the problem of other animal collagen issues. Also the study utilized the abandoned fish waste produced by fish processing industry since bone, skin, fin and scales of fish can be a useful source of collagen.

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Fish and fishery products are having a unique place in global food market due to its unique taste and flavour; moreover, the presence of easily digestible proteins, lipids, vitamins and minerals make it a highly demanded food commodity.Fishery products constitute a major portion of international trade, which is a valuable source of foreign exchange to many developing countries.Several new technologies are emerging to produce various value added products from food; “extrusion technology” is one among them. Food extruder is a better choice for producing a wide variety of high value products at low volume because of its versatility. Extruded products are shelf-stable at ambient temperature. Extrusion cooking is used in the manufacture of food products such as ready-to-eat breakfast cereals, expanded snacks, pasta, fat-bread, soup and drink bases. The raw materialin the form of powder at ambient temperature is fed into extruder at a known feeding rate. The material first gets compacted and then softens and gelatinizes and/or melts to form a plasticized material, which flows downstream into extruder channel and the final quality of the end products depends on the characteristics of starch in the cereals and protein ingredient as affected by extrusion process. The advantages of extrusion process are the process is thermodynamically most efficient, high temperature short time enables destruction of bacteria and anti-nutritional factors, one step cooking process thereby minimizing wastage and destruction of fat hydrolyzing enzymes during extrusion process and enzymes associated with rancidity.

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Resumen basado en la publicación

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Cumple con los requisitos del currículo de Inglaterra, Gales y Escocia aportando los conocimientos básicos relacionados con el aprendizaje de la lectura y la escritura en niños de seis y siete años. El texto sirve de base para conocer e identificar los sonidos en las palabras. En esta historia, se trata la rima'in', y en ella vemos cómo los pícaros peces engañan al pescador.

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Indicado principalmente para niños que no están haciendo los avances esperados en la lectura y tienen la necesidad de consolidar sus habilidades antes de convertirse en lectores con fluidez. En esta historia, Curly el gato de la familia, descubre quién roba el pescado del estanque del jardín.

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Es una colección de cuentos tradicionales de China, África, Corea y España, escritos por narradores del pasado que, aunque proceden de muy distintos países y continentes, tienen deseos comunes de un mundo mágico y de un mundo soñado por las personas, independientemente, de donde vivan.

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A Toby le encanta ir a la feria y está más entusiasmado que de costumbre porque se ha ganado un pez de colores. Nunca tuvo una mascota antes y está muy emocionado con su pescado Moby. Para que Moby sea feliz y se sienta como en casa, le hace en la pecera su propio recinto ferial.

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Varias historietas de humor absurdo sobre situaciones en la playa. Una chica toma el sol tranquilamente a la orilla del mar en una silla y detrás de ella tiene un amenazador oso pardo. Unos niños hacen en la playa unos enormes castillos de arena utilizando una pala excavadora.

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En el occeano viven muchos tipos de peces que tienen diferentes colores, formas y características. Algunos se ocultan de sus enemigos para protegerse y mantenerse a salvo. Otros son depredadores, y se ocultan a fin de poder atacar a otros animales.

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En el profundo mar azul, vive Swam un pez que quería un deseo y cada deseo se hace realidad. Desea un castillo, un coche, un caballo, desea volar, esquiar. Pero un día, quiere ser igual que los otros peces.

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Historia ilustrativa sobre el egoísmo y la vanidad. El pez más bello de todo el océano se niega a compartir sus brillantes escamas. Cuando su avaricia le deja sin amigos o admiradores el pez busca el consejo del sabio pulpo, que le asesora para regalar su belleza y descubrir cómo ser feliz.

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Ireland’s waters constitute one of the richest habitats for cetaceans in Europe. Marine mammals, particularly cetaceans, are known to be definitive hosts of digestive parasites from the Fm.Anisakidae. The main aim of this study is to collect and compile all the information available out there regarding parasites of the Fm. Anisakidae and their definitive hosts. Secondary objectives are to relate the presence of cetacean species with the presence of parasites of the Fm. Anisakidae and to determine whether this greater number of cetaceans relates to a greater level of parasitism. Prevalence and burdens of anisakids in definitive hosts vary widely with host species, geographic location, and season. Results from several post-mortem exams are given. However, they cannot be compared due to differences in collecting techniques. Anisakis simplex is the most commonly and widespread parasite found in the majority of the samples and in a major number of hosts, which include harbour porpoise, short-beaked common dolphin and bottlenose dolphin. Studies on harbour porpoise obtained prevalences of Anisakis spp. of 46% (n=26) and of 100% (n= 12). Another study in common dolphin reported a prevalence of 68% (n=25). Several reasons could influence the variations in the presence of Anisakis. Studies on commercially exploited fish have reported prevalences of Anisakis simplex ranging from 65-100% in wild Atlantic salmon and from 42-53.4% in Atlantic cod

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Actualment una de les principals amenaces a la biodiversitat és la introducció d'espècies. Revisant 26 variables de les 69 espècies de peixos continental de la Península Ibèrica concloem que la filogènia, variabilitat i els usos de l'home són necessaris per entendre millor les diferències entres les espècies natives i invasores. Entre les especies més afectades per la introducció de peixos es troben els ciprinodontiformes endèmics del Mediterrani. Aportem les primers dades sobre l'ús d'hàbitats ocasionalment inundats i la selecció de preses del fartet (Aphanius iberus), observant un canvi ontogenètic, clarament relacionat amb el microhàbitat. També demostrem que la salinitat influeix en l'èxit invasor de la gamúsia, afectant la seva densitat i biologia reproductiva. Per altra banda, demostrem experimentalment que amb l'increment de salinitat la gambúsia disminueix la seva agressivitat i captura menys preses, reduint la seva eficàcia competitiva respecte dels ciprinodonts natius.