Valor nutritivo de harinas de macroalgas para el cultivo de la almeja japonesa, Ruditapes philippinarum: pruebas preliminares
Nutritive value of two macroalgal meals (Undaria sporophytes and gametophytes) for Manila clam Ruditapes philippinarum (Adamsampersand Reeve, 1850) seed culture was studied. Both meals were tested at a substitution level of 50 % of the daily food ration and as single diets; these diets were then com...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/313796 |
| Acceso en línea: | http://hdl.handle.net/10261/313796 |
| Access Level: | acceso abierto |
| Palabra clave: | Acuicultura Dietas alternativas Centro Oceanográfico de Murcia macroalgas semilla almeja japonesa Ruditapes philippinarum crecimiento |
| Sumario: | Nutritive value of two macroalgal meals (Undaria sporophytes and gametophytes) for Manila clam Ruditapes philippinarum (Adamsampersand Reeve, 1850) seed culture was studied. Both meals were tested at a substitution level of 50 % of the daily food ration and as single diets; these diets were then compared with the reference diets comprising the microalgae Isochrysis galbana Parke clone T-ISO, either as the entire daily food ration or half of the ration. In both cases, 50 % substitution of the microalgae by the macroalgal meals doubled the growth observed, compared with the reference diet. Moreover, growth rates of the seed clams fed on the substitution diets were statistically comparable, on a dry weight basis, to the 100 % control diet in the case of sporophytes meal, or lightly lower in the case of gametophytes meal (20% lower than the control diet). These results point out the interesting potential of the macroalgal meals as partial or total substitutes of live microalgae. Further future research focused on increasing the substitution level, along with modifying the meals in order to increase their digestibility, could determine the potential of these diets in the feeding of bivalves, and even in other filter-feeding animals, such as rotifers. |
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