Organic fertilization of nursery ponds for pike (Esox lucius)
| Autor: | Roland Billard, B. Lanoiselee, G. de Montalembert |
|---|---|
| Přispěvatelé: | Aménagements littoraux et Aquaculture (UR ALMO), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), Institut National de la Recherche Agronomique (INRA), PISCICULTURE DE VILLERIN, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Irstea Publications, Migration |
| Jazyk: | angličtina |
| Rok vydání: | 1986 |
| Předmět: |
0106 biological sciences
[SDE] Environmental Sciences biology 010604 marine biology & hydrobiology Fish farming 0402 animal and dairy science 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification 040201 dairy & animal science 01 natural sciences Manure Zooplankton Fishery Human fertilization Stocking Animal science [SDE]Environmental Sciences Dry matter computer Esox Pike computer.programming_language |
| Zdroj: | Aquaculture Aquaculture, Elsevier, 1986, 54, pp.141-147 |
| ISSN: | 0044-8486 |
| Popis: | Repeated dumping of pig manure (0.5, 1.5, 3.0 t ha −1 week −1 or an equivalent of 2.5, 7.5 and 15 kg dry matter ha −1 day −1 ) leads to an increase in pike fingerling biomass of 70% between ponds receiving the lower and upper rates of fertilization. Survival of larvae is also increased by fertilization, but mainly depends on the initial stocking density. Data on zooplankton density and stomach contents of young pikes show the beneficial effects of manuring on the fishpond biocenosis and may explain the better results obtained when a high rate of manure is added, even when the water temperature is low. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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