FR2545689A1 - Container for raising snails - Google Patents

Abstract

THE INVENTION CONCERNS A BREEDING BIN FOR SNAILS IN AN IMPUTRISCIBLE MATERIAL IN THE FORM OF A DOUBLE-SLOPED ROOF WHOSE EDGES 1 ARE RAISED, THE JUNCTION OF THESE EDGES BETWEEN THEM AND WITH THE SLOPING PARTS BEING ROUNDED, CONDUCTING THE WASTEWATER AND WASTE TO TWO DRAIN CHUTS INCLUDING A FILTER SYSTEM 2 PROHIBITING THE PASSAGE OF SNAILS. THE UPPER PART OF THE CONTAINER BEING OPEN, IT IS EQUIPPED WITH AN ANTI-VASION FENCE 6 MADE WITH EXTRUDED SOFT PVC IN WHICH CONDUCTIVE STRIPS ARE SET IN STAINLESS STEEL WITH A HIGH NICKEL-CHROME CONTENT. SHELTERS WITH GLUED SURFACES 7 ARE PROVIDED, THE SHAPE OF WHICH ALLOWS HOLDING IN STABLE EQUILIBRIUM ON THE UPPER PART OF THE CONTAINER. THE BINS ACCORDING TO THE INVENTION CAN BE USED IN SUPERIMPOSES, THE CHUDS THEN BEING CONNECTED BY PIPES AND Y-CONNECTIONS.

Description

 The present invention relates to a breeding tank for snails of three grams and more and all its accessories for its use both in air-conditioned building or not as well as outside.

 The latest helicultural knowledge highlights the fact that snail farming must be carried out in a context that puts them in the optimal natural conditions suitable for reproduction and fattening by occulting the summer periods as much as possible. - calving and wintering which are the main factors of the slowdown in growth, generators of weight loss, mortality of infants and juveniles by dehydration or freezing.

 Currently the two main factors of failure in the management of snail farming are: the time spent in cleaning and handling, the responsibility of which lies in the fact that the breeding tanks are too small, inaccessible and clean The second factor stems from the first in that the cleaning requiring too long a time is carried out at spaced tvFf periods, but the escarfots emit large droppings (feces) in volume whose accumulation stains the water, food as well as movement surfaces and become (especially at a temperature of twenty degrees and more) the privileged focus of pathogenic germs by facilitating the proliferation of nematodes, trematodes and other mites which are the most harmful enemies to the life of snails.

 In addition, the nature of the tanks and the way in which they are installed must be as well armed as possible against the invasion of visible predators, whether underground, terrestrial or aerial, such as shrews, lampyres, birds.

 It is moreover essential that the relbsee food is quickly and easily removable, the refusal being motivated by the too great abundance of this one having regard to the possibilities of ingestion of the population of the tank or by the fact that being in process of decomposition it became inappetant.

 It is moreover essential that the areas of evolution of the snails are moist but without thickness of water and especially that this water does not stagnate more than a few hours under penalty of transformation of this one into broth of culture.

 The various current farms take into account only partially or not at all these various requirements, in particular with regard to the ease of cleaning and the stagnation of the waters leading to the supersaturation of infested households generating stress or combating illnesses or growth arrest and mortality in variable but never negligible proportions.

The breeding tank according to the invention makes it possible to achieve the imperatives cited at the top by remedying the irmconadvantages cited below. This can be used per unit or in a number limited only by the capacity of the farm is characterized in that it comprises
A tray made of rot-proof material that is variable in manufacture in all its dimensions, or slopes, or radiuses of curvature in its angles, made of polyester resin on a mold with weft of glass fiber fabrics. The food-type gel-coat finish varies in color. thickness of the resin will depend on the size for which it has been chosen.

 It can also be produced in any other thermoformed material on a mold, in particular in dense polystyrene or in food polyvinyl chloride by emitting the same reserves of variability as at the start.

 The color of the gelcoat for reasons of preference of the snails will be dark, in particular black or midnight blue, without prejudging the use of another shade.

This tank is in the form of a double-pitched roof, all the edges of which would be raised, the junction of these edges with the sloping parts being rounded to facilitate access and cleaning, it is the same for the side unctions;
The upper part is where. strong.

 At one end of the two parts serving as a drainage channel for the b-rrumisation water or the washing water and facing each other are placed two chutes provided during manufacture. All along these channeling anglets are arranged plastic grids of studied shape and curvature also studied, with a square mesh of two millimeters on the side this to avoid muddy deposits of debris in the channel, avoid clumps retaining the water and allowing during washing the easy passage through this grid of all excrement or food waste while preventing the precipitation of snails in the drainage chute.

 When assembling the tubs on feet or on supports, the drainage chutes must be, relative to the other end of the channel, lower by at least three centimeters per meter to ensure good flow by gravity water or residue.

 To avoid escape, an anti-escape system is continuously mounted on the internal periphery of the upper part of the breeding tank. This multi-conductor electric fence type anti-escape system is made up of two parts. The first consists of a semi-rigid polyvinyl chloride strip, extruded and of a particular shape to prevent the conductive strips of stainless steel with a high nickel-chromium content which constitute the second part of this fence and are crimped in the footprints of the first part, cannot escape.

 This fence can be supplied with DC current at very low voltage using a battery, a battery, or a pulser made specially for this purpose.

 The bonding surface shelters are made of hot-formable plastic, dense polystyrene, P.V.C, etc.

Their dimensions are variable in all directions according to the choice of the breeder and the type of size of tanks to be equipped, characteristics in that they must keep in stable equilibrium on the upper part of the tank, which implies obligation to always keep the same shape at the manufacturing for the lower part of this material.

 In a breeding that it is intensive or not it is desirable to mount the tanks in batteries of three, in superposition the saving of space thus realized is very important and the access remains easy. In the case of industrial farming, the desirable arrangement is to proceed in rows of ten tanks in groups of three, which gives a total of thirty tanks per row.

 The advantage of this assembly is that the troughs are venta 'plumb from each other in groups of three or an easy connection using pipes and PVC Y to then connect the lower part to a general collector.

 These bins can be used indoors or outdoors or even moved according to the seasons.

 In the case of use in buildings preferably air-conditioned and stacked, the useful rearing area is greater than twice the area of the room, taking into account the loss represented by the aisles on either side of the alignments.

 Connections will be made at low cost, both in time and in equipment with regard to electrical connections, misting and the evacuation of waste water laden with residues. The high possible concentration of snails thanks to the possibility of maintaining advanced hygiene will minimize movement. Quick water intakes will save a lot of time when cleaning.

To alleviate the invasion of predators, the room must be watertight and its ventilation openings fitted with fine mesh,
In the case of outdoor use, the tank supports will be made of PVC and the bottom of the tanks will be placed at least sixty centimeters from the ground, this to avoid the risk of invasion by terrestrial predators.

 A mesh of twenty seven millinleters will be placed on the tank which will not interfere with cleaning or feeding operations and will serve as anti oi waters.

Claims (5)

REVENDICA V ON S  1 .- Tray for the breeding of snails and its accessories, characterized in that its usable part for breeding has two inclined planes and four vertical planes channeling the waste water and the waste towards two discharge chutes comprising a filtering system. This bin is also equipped with an anti-escape fence and bonding surfaces.  2.- Tray according to claim 1 in that it is made of polyester resin with a glass fabric or thermoformed plastic frame.  3.- Tray according to claim i characterized: in that two grids placed in the lower parts prohibit the passage of snails or waste by allowing easy and rapid cleaning thereof.  4.- tray according to claim 2 in that it is characterized by a shape which allows stacking by providing easy access for cleaning or handling.  5.- Tray according to claimsl-2-3 in that it is fitted with an anti-escape fence produced using flexible extruded P.V.C and stainless steel strips with a high NI.CH content.  6.- 6ac according revendicatiora1-2-3-4 characterized in that it is equipped with an adjustable number of bonding surfaces of original shape.  7.- Eac according to claims i-2-5-4-5 characterized in that it is equipped with two discharge chutes placed at the lowest part thereof.