PROCESS FOR GROWING FRESH-WATER CRAYFISH (ASTACUS LEPTODACTYLUS ESCH.) IN MIXED CULTURE WITH NON-PREDATORY SPECIES OF FISH

The invention relates to a process for growing fresh-water crayfish in mixed culture with non-predatory species of fish, comprising a first stage where the shelters for the juveniles are placed in some ponds, the ponds being then filled with water during the period from the 10-th to the 20-th of May...

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Hauptverfasser: PECHENU CONSTANTIN, JECU ELENA, MIHALACHE GRIGORE, POPA CARMEN, BOCĂNEALĂ VASILE
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creator PECHENU CONSTANTIN
JECU ELENA
MIHALACHE GRIGORE
POPA CARMEN
BOCĂNEALĂ VASILE
description The invention relates to a process for growing fresh-water crayfish in mixed culture with non-predatory species of fish, comprising a first stage where the shelters for the juveniles are placed in some ponds, the ponds being then filled with water during the period from the 10-th to the 20-th of May, when the temperature of the water is of 18 °C, during the period from the 1-st to the 15-th of June said ponds being populated with juveniles of 5...10 days of age, at a density of 1...8 individuals/ m2 of water surface, afterwards the ponds being populated with juvenile fish of 21 days of age, in October-November the juveniles of one summer of age being harvested, disinfected with formalin and the ponds being populated for wintering during the period from the 15-th of October to the 15-th of November. During the second stage, the fish ponds are populated with juveniles of one year old, at a density of 0.5...1 individual/m2 of water surface, and after the growing period the crayfish harvesting is carried out. Invenţia se referă la un procedeu de creştere a racului de baltă în policultură cu specii de peşti paşnici, în care, într-o primă etapă, are loc amplasarea refugiilor pentru puiet în nişte bazine, inundarea bazinelor în perioada 10...20 mai, când temperatura apei este de 18°C, popularea bazinelor în perioada 1...15 iunie cu puiet de 5...10 zile, la o densitate de 1...8 exemplare/mluciu apă, popularea bazinelor cu puiet de peşte în vârstă de 21 de zile, recoltarea puietului de o vară în perioada octombrie-noiembrie, deparazitarea acestuia cu formalină şi popularea bazinelor pentru iernat în perioada 15 octombrie-15 noiembrie. În cea de-a doua etapă, are loc popularea bazinelor piscicole cu puiet în vârstă de un an, la o densitate de 0,5...1 exemplar/mluciu apă, iar după parcurgerea perioadei de creştere, are loc recoltarea racilor.
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IN MIXED CULTURE WITH NON-PREDATORY SPECIES OF FISH</title><date>2003-04-30</date><risdate>2003</risdate><abstract>The invention relates to a process for growing fresh-water crayfish in mixed culture with non-predatory species of fish, comprising a first stage where the shelters for the juveniles are placed in some ponds, the ponds being then filled with water during the period from the 10-th to the 20-th of May, when the temperature of the water is of 18 °C, during the period from the 1-st to the 15-th of June said ponds being populated with juveniles of 5...10 days of age, at a density of 1...8 individuals/ m2 of water surface, afterwards the ponds being populated with juvenile fish of 21 days of age, in October-November the juveniles of one summer of age being harvested, disinfected with formalin and the ponds being populated for wintering during the period from the 15-th of October to the 15-th of November. During the second stage, the fish ponds are populated with juveniles of one year old, at a density of 0.5...1 individual/m2 of water surface, and after the growing period the crayfish harvesting is carried out. Invenţia se referă la un procedeu de creştere a racului de baltă în policultură cu specii de peşti paşnici, în care, într-o primă etapă, are loc amplasarea refugiilor pentru puiet în nişte bazine, inundarea bazinelor în perioada 10...20 mai, când temperatura apei este de 18°C, popularea bazinelor în perioada 1...15 iunie cu puiet de 5...10 zile, la o densitate de 1...8 exemplare/mluciu apă, popularea bazinelor cu puiet de peşte în vârstă de 21 de zile, recoltarea puietului de o vară în perioada octombrie-noiembrie, deparazitarea acestuia cu formalină şi popularea bazinelor pentru iernat în perioada 15 octombrie-15 noiembrie. În cea de-a doua etapă, are loc popularea bazinelor piscicole cu puiet în vârstă de un an, la o densitate de 0,5...1 exemplar/mluciu apă, iar după parcurgerea perioadei de creştere, are loc recoltarea racilor.</abstract><oa>free_for_read</oa></addata></record>
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subjects AGRICULTURE
ANIMAL HUSBANDRY
CARE OF BIRDS, FISHES, INSECTS
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
NEW BREEDS OF ANIMALS
REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR
TRAPPING
title PROCESS FOR GROWING FRESH-WATER CRAYFISH (ASTACUS LEPTODACTYLUS ESCH.) IN MIXED CULTURE WITH NON-PREDATORY SPECIES OF FISH
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