Digestibility coefficients of sun dried and fermented aquatic macrophytes for Cachama blanca, Piaractus brachypomus (Cuvier, ). Coeficientes de. Genero: Piaractus. Especies: Piaractus Brachypomus “Cachama blanca”. “La cachama alcanza su madurez sexual a los 3 años de edad”. The effects of straws volume, cryoprotectants and thawing temperatures were evaluated on the sperm quality of cachama blanca Piaractus.

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International Union of Pure and Applied Chemistry, 81 1: Fish were manually fed the experimental diets once daily to apparent satiety. Consultado el 19 de septiembre de The ADC drymatterADC protein and ADC energy of the tested ingredients were significantly acchama between plant material types and processing methods, but not between their combinations Table 1.

Histopathological analysis showed gills and liver lesions, like a lamellar hyperplasia and lipid vacuolization, respectively, in response blznca detoxification processes. J World Aquac Soc. Robinson E, Li M.

The samples were collected at 60 min intervals over a period of 12 h per day during two wks. Livest Res Rural Dev. The improper disposal of mercury-containing substances may cachaa toxicity and accumulate in fish tissues. To enhance the nutritional value of plant materials for fish, simple methods for processing suitable for marginal areas have been investigated.

Animals and Feeding Trial A total of juveniles of Piaractus brachypomus with a similar initial body weight of All the energy values of the tested ingredients were relatively low and aquatic macrophytes can be described as a feed source poor in lipids and soluble carbohydrates, which do not possess desirable features to be used as an energy source.

Fish, Acute Toxicity Test. Este valor es cercano a lo registrado en otras especies de peces y representa el primer registro de toxicidad aguda para el mercurio en cachama blanca. Particularly, diet and dietary compound digestibility are essential for exact determination of nutrient demands in fish metabolism.


Thus, fish species of the genus Piaractus are desired for using unconventional plant ingredients as nutrient sources in the rural aquaculture. Relationship of blood mercury levels to health parameters in the loggerhead sea turtle Caretta caretta. Faeces were collected by a specific sedimentation system. Grabner M, Hofer R.

Pomacanthus arcuatus – Wikipedia, la enciclopedia libre

Afterwards, seven experimental diets one reference diet and six test diets were randomly assigned to triplicate experimental groups. A total of juveniles of Piaractus brachypomus with a similar initial body weight of Bony fishes part 2 Opistognathidae to Molidaesea turtles and marine mammals. Wood C, Shuttleworth T, editores. Western Central Atlantic Fishing Area The experiment was carried out in the toxicology laboratory of the University of Tolima Colombiaunder controlled conditions Practical gross necropsy of exotic animal species.

Blood mercury levels in US children and women of childbearing age, The lower ADC drymatter of sundried aquatic macrophytes could be explained by their high mineral content ash content when compared to the fermented aquatic plants.

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The Indian Journal of Medical Research, 4: Los peces marinos de Venezuela. In addition, ensuring a high diet digestibility preserves the aquatic environment by avoiding the accumulation of indigestible ingredients. Apparent digestible energy and nutrient digestibility coefficients of diet ingredients for pacu Piaractus brachypomus.

Reproduction in reef fishes. Histopathological analyses were conducted on 2 fish per treatment group on samples of liver, brain and gills tissues.

Generalidades de la Cachama by Juan Camilo Arias Robledo on Prezi

Determination of the immunotoxic potential of heavy metals on the functional activity of bottlenose dolphin leukocytes in vitro. In feed formulation, the most important characteristics of the components are their nutrient quantity and quality as well as their digestibility, mainly digestible protein and energy Austreng ; Fagbenro Revista de la Facultad de Medicina Veterinaria y de Zootecnia.


Among test ingredients, the highest ADC drymatterADC protein and ADC energy were obtained for fermented macrophytes, whereas the significantly lowest value was displayed by the sundried macrophytes. Evidence of early nervous systems dysfunction in amazonian populations exposed to low-levels of methylmercury.

The dietary gross energy was not different in the test diets. Geobios Jodhpur Journal9: De Wikipedia, la enciclopedia libre. Aquatic Toxicology, 48 4: Thus, the fermentation process of aquatic macrophytes seems to be adequate, since it considerably reduces fibre content and antinutritional substances present in the plants Bairagi et al.

Cachama blanca

In conclusion, this study showed that ADC drymatterADC protein and ADC energy of fermented aquatic macrophytes were significantly higher than those of sundried aquatic macrophytes. Thus, fermented aquatic macrophytes, particularly Spirodela polyrhiza, Lemna minorand Azolla filiculoides can be recommended as dietary ingredients into diets for the Cachama blanca Piaractus brachypomus.

The water quality parameters presented during the experimental period were within optimal requirements for Piaractus brachypomus, reported by Vasquez-Torres Digestibilidad aparente de ingredientes de origen animal y vegetal para Cachama Piaractus brachypomus.

The lactic acid silage fermentation process was carried out using a commercial silage lactic acid bacteria LAB inoculant as described by Cruz et al.

Pomacanthus arcuatus

Spanish pdf Article in xml format Article references How to cite this article Automatic translation Send this article by e-mail. The 3 x 2 factorial analysis of variances indicated that the digestibility coefficients of the tested macrophytes were significantly different between plant material and treatments, but not between their combinations. Toxicity of mercury to some freshwater organisms.

Methylmercury concentrations in six fish species from two Colombian rivers.