DD141987A1 - AUTOMATIC GRAPE PACKAGING FOR FINE AND COMMERCIAL FARMING - Google Patents

Abstract

The aim of the invention is an automatic incubator, with the Different types of fish with high yield and under independent Separation of dead material can be hatched. invention task is the development of an automatic incubator, with which the invention goal is achieved. The automatic Incubator consists of one or more containers or similar, in those below the waterline, interchangeable sieve plates are strung together. It contains at least one electrical and / or mechanical base working Control device, the one through the sieve plates against the Gravity directed continuous, predominantly laminar, Fault delivers and this in the controllable clock a higher Flow velocity can superimpose pulses. The Incubator is completed by a fresh water treatment and or or delivery system and temperature and / or or pH regulator

Description

Field of application of the inventors

The invention relates to an automatic incubator for ornamental and Hutzfischzucht.

Characteristic of the known technical solutions

From commercial fish farming is the incubation of fertilized eggs in closed ponds with continuous or discontinuous

Prischvmsserversorgung or natural G _e installed cassettes water known. However, these methods result from grinding the eggs in moving water and bzv /. or by Pilsbefall and / or by poisoning, in particular by not separated dead material, to a considerable loss of fertilized spawning. Attempts have now been made to reduce the losses of fertilized eggs by intensive continuous or discontinuous feeding and / or by adding fungal control chemicals, however, such manipulations are only possible to the extent that the negative feedbacks (destruction of the eggs) are present Eggs, their poisoning) do not exceed certain limits, therefore the Uutzfischzucht works profitably only with the Pischarten, which give per L _a ichvorgang very many (above 1Cr eggs per fish) fertilizable eggs.

"2 - 2 υ 9 6 y 4,

Another disadvantage of the said systems and manipulations "is that an independent separation of the dead material is currently not possible to the extent necessary"

In particular, it has hitherto not been possible to breed species, preferably ornamental fish species, which provide only a few fertile eggs per spawning process in the plants and with the manipulations of commercial fish farming with high yield. In the DD-WP 61 669 therefore a cassette-shaped incubator is proposed, which is to simulate the natural breeding process. Furthermore, Hartleben, W. and Krüger, J ₀ (Aquariums Terrarien 24 (1977) 6, So 210 ff; 24 (1977) 7, So 244 £ f and 2J? (1978) 11, pp. 570 ff) described incubators, preferably for certain ornamental species The common disadvantage of these incubators is that an excessive proportion is destroyed by the emesis of the fertilized eggs; the breeding herd is barely 50%. In addition, a separate separation of the dead material is not possible in these brooders, which often leads to the loss of the whole brood.

Aim of the invention

The aim of the invention is an automatic incubator, can be hatched with the ornamental and Nutzfische with high yield and self-separation of dead material.

The technical problem _} which is solved by the invention

The invention has for its object to develop an automatic incubator, with which it is possible to achieve the goal of the invention »

-3-20 9694

Features of the invention

The hatching of fertilized ornamental and Nutzfischeiern with high yield and automatic separation of the dead material succeeds with a brooder in which the fertilized eggs are washed continuously with predominantly laminar flowing fresh water, the predominantly laminar flow must be directed against gravity and her in a controllable clock in the same direction a higher flow velocity is superimposed pulse-like ₀

According to the invention, the fertilized spawn is located on sieve bottom and is continuously circulated with fresh water without occurrence of visible turbulence (here referred to as predominantly laminar flow). It has now been shown that the specific pressure of the fertilized eggs is due to the continuous flow velocity in the direction against gravity the sieve bottom and sieve walls is lowered to the extent that their crushing or bursting can be significantly reduced. The speed of the continuous flow depends both on the ax and the amount of fish eggs and on the dimensioning of the sieve bottom and according to the invention must be infinitely variable over a wide speed range. The supply of fresh water can take place in a manner known per se by removal from natural reservoirs or better by treatment of spent water in the cyclic process, as is usual in aquaristics.

Finally, it has been found that the breeding yield can be further increased if the continuously washed, practically resting eggs are temporarily moved or circulated. This is inventively by itnpulsartige superposition of the continuous

Flow achieved at a higher speed. The timing and the amplitude of the pulses, which are superimposed on the continuous flow velocity, depend on the one hand on the type and quantity of fish eggs, on the other hand on the dimensioning of the sieve tray. Surprisingly, it was found that with adapted impulses not only a movement of the fish eggs, but at the same time an automatic separation of unfertilized or »dead eggs became possible. The dead material, carried by the flow, leaves the sieve trays above the overflow

The automatic incubator consists of basins, cassettes o _o ao, in which several sieve trays interchangeable, but strung together,. are attached. The shape and size of the basins and trays can vary over a wide range, so that in practice a mass and / or individual breeding is possible. Located in the basin

Furthermore, an electrically or in the simplest case mechanically operating control device, mitc / er the flow and the superimposed pulses can be controlled automatically. Conveniently

the control of the flow velocity via a continuously variable centrifugal pump, as they are used in particular for large aquarium operation »The water supply is conveniently carried out in the middle of the basin through an opening in the same or in particular small systems through an overflow nozzle, which ends just above the pelvic floor. For smaller brooders, especially for hatching ornamental fish, is also a mechanical control. The water circulation can be combined in this case

operated with filtering and aeration above higher water levels.

- • 5-2

For the control device, the commercially available components can be used v / ground. The electrical control circuit therefore consists at least of a sensitive flow meter, which is located in a sieve bottom vessel, Zeitplansollwertgeber, possibly microelectronic design, thyristor actuator and continuously variable pump. Connection to EDVA is possible in principle. '

The mechanical control can be carried out differently "The most favorable structural design consists of two sieve-bed-free containers in which fresh water is constantly pumped, which flows directly out of the one vessel and thus supplies the continuous flow. In the other container, the inflowing water is passed through a system of levers which provide the pulses by controlling the emptying of the building up high level in the equipped with sieve bottom low level in accordance with the invention _o A corresponding, simple solution variant uses bilateral lever in balance beam arrangement _β

Electrical and mechanical control of the flow and its superimposed pulses can be advantageously combined.

The automatic incubator is completed by the Frischwasserauf preparation and / or delivery system and the temperature control device and possibly an automatic pH control and control system.

Execution at play

The invention will be explained in more detail by the following exemplary embodiment.

-6- 2 0 9694,

tert, but the invention is not limited to this example »

The automatic incubator shown in Fig. 1 consists of five chambers:

a the rear storage chamber, b the equalizing chamber, c the collecting canals, d the filter chamber and e the pressure chambers β a, c and d are components of the water treatment and circulation system b provides the continuous, predominantly laminar, flow; • e by emptying the superimposed pulses.

Through the opening 11 stale, tempered fresh water is filled in d, which passes through the filter mass 14 and flows from below through a slot to a »About the riser channels 10, which are open at the bottom to a and b above, is using on a air conveyor connected emanator Frischw _ater to b gefördertο the inflowing in b V / ater now flows from below through the screens 2 and the hopper 1 via the funnel top edge by c and from there via the network 13 by d, happened 14, etc. in the cyclic process. The openings 11 and 12 serve the water renewal resp. water supplements

After e water comes out of a through the riser channels 7> 10 analog work. As a result, a higher water level is established in e than in a and c. If the water exceeds the lower limit TOn 6 when the water is closed 4, the water flows into the pot 5 · 5, which is inclined by the excess weight and thereby opens 4, so that the water is released e impulsively over b through 2 and 1 flows to c. The pulse moves the eggs lying on the sieves 2 3 times. rinses out dead material that is in

• can be caught. No. 8 regulates v / ie far Ur. 9 raises and thus the flow rate through ITr. 4 ·

In the vessel 5 is an adjustable opening, which leaves the filled pot idle in the desired time sequence, so that 4- can close again. The whole process begins again.

In the described plant eggs were hatched by mouth-breeding Malawicichliden. In a 3 to 8 minute continuous flow of 0.05 to 0.2 liters of water per minute and sieve (screen area 24 to 25 cm ^) and 2 to 5 seconds lasting pulses of 0.3 to 0.4 liters of water per screen a brood yield (based on fertilized eggs) of 100% was obtained.

Claims (1)

Invention application ^: B _r utapparat for ornamental and Mutzfischzucht, characterized in that the automatic B _rU tapparat consists of one or more filled with fresh water containers in which a plurality of lined-up sieve tray are removably installed below the water line, in these containers at least one of electrical and or mechanical basis operating automatic control device is installed, which generates a continuous, predominantly laminar, flow of fresh water, in the direction against gravity through the sieve bottom and the flow of this flow in a controllable clock in the same direction a higher flow velocity impulsively superimposed, wherein the electrical control circuit from located in a sieve tray per container per se known sensitive flow meter and per se known Zeitplansollwertgeber ,, if necessary. mifcroelektronischer design, thyristor actuator and continuously variable pump,. , , , ... and / or the mechanical control loop from at least two sieve-bottom-free containers into which a per se known pump a continuous fresh, water inflow takes place, which flows from the one vessel directly into the sieve tray and in the other vessel via a system of levers, Preferably, according to the principle of balance, is passed and flows after building a higher level pulses, consists, in the form that the automatically adjustable flow over at least one adjustable opening in the ground the container and / or at least one adjustable overflow nozzle, which ends just above the container bottom, and which are preferably mounted in the middle of the container, is guided into the container, wherein the automatic incubator further with a known Prischwasserversorgungs- and or or -aufbereitungsanlage connected and equipped with per se known temperature and or or pH ~ value control device. fiierzu ^ 2__Seiten Drawings