WO2025185652A1

WO2025185652A1 - A device and method to enhance fish growth rate, survival rate and yield

Info

Publication number: WO2025185652A1
Application number: PCT/CN2025/080730
Authority: WO
Inventors: Tsz Lung Alex LAM; Shun Ching CHAN; Chun Yin CHOW
Original assignee: Hong Kong Well Life Biotechnology Ltd
Current assignee: Hong Kong Well Life Biotechnology Ltd
Priority date: 2024-03-07
Filing date: 2025-03-05
Publication date: 2025-09-12
Anticipated expiration: 2026-09-07
Also published as: WO2025185652A8; AU2025204337A1

Abstract

A device (100) to enhance fish growth rate, survival rate and yield, comprising of: a box body deployed with:an ozone generator (112) and an oxygen generator (114); an air pressure pump (118) connected to a cooling fan (110);a display means (102, 104); wherein at least one display means (102, 104) is connected to an oxygen pressure indicator (106); a substance inlet (116); and a water pump (108); wherein the ozone generator (112) and oxygen generator (114) are coupled with the water pump (108) to create water current, pressurize, and atomize ozone and oxygen, respectively.

Description

A DEVICE AND METHOD TO ENHANCE FISH GROWTH RATE, SURVIVAL RATE AND YIELD

FIELD OF THE INVENTION

The present invention relates to an aquaculture field, in particular a device and method to enhance fish growth rate, survival rate and yield.

BACKGROUND OF THE INVENTION

Aquaculture, also known as aquafarming, involves the controlled cultivation of aquatic organisms. It is known that aquaculture is the breeding, raising, growing, and harvesting of aquatic organisms. At present, there is a lack of comprehensive methods to tackle common problems that occur in aquaculture. Such common problems include, for example, low oxygen levels in water, poor water current and quality, large-scale fish diseases induced by excrement and bacteria accumulation, and disease outbreaks caused by harmful chemicals and veterinary drugs.

Further, many fish fry will be injured, hypoxic, weakened or even die during the fish fry season due to the long transportation time. During live fish transportation, fish often die due to a lack of oxygen. Hence, there is a need to provide a method to overcome the low fish survival rate, which may reduce economic losses.

ChinaPatent Publication No. 112913771Adisclosesa conveying device capable of improving survival rate for fish culture, which comprises a clamping plate, a clamping frame, a culture cylinder, a control cabinet, a heating shell, an oxygenation pump and a storage battery, wherein the oxygenation pump is arranged at the bottom of one side inside the culture cylinder, a PLC (programmable logic controller) is fixedlyinstalled on the back of the top of the control cabinet, and a water temperature sensor is fixedlyinstalled on one side of the top of the PLC. According to the invention, the bottom of one side inside the culture tank is provided with the oxygenation pump for oxygenating water inside the culture tankto ensure oxygen supply to fishes, the temperature in the water inside the culture tank is detected bythe water temperature sensor on one side of the top of the PLC, and the water temperature is heated by the heating resistance wire arranged inside the internal heating shell at the middle position of thebottom of the culture tank to ensure the constant water temperature inside the culture tank, so that the survival of the fishes is facilitated, the survival rate of the fishes in the transportation process is improved by ensuring the constant water temperature and sufficient oxygen supply, and thecommercial value of the fishes is ensured. However, the invention is merely providing a constant water temperature and sufficient oxygen supply to improve the fish survival rate. This device may not be workable for improving the fish survival rate caused by fish diseases.

China Patent Publication No. 112450143discloses an environment-friendly aquaculture device capable of improving survival rate, which comprises a culture box with a box cover, ultraviolet disinfection lamps, and an oxygenation pump. The invention could improve the fish survival rate by recycling water resources, removing impurities in the water, providing a convenient cleaning device, and not needing to take out fish during the cleaning process. However, the aquaculture device is complicated as it comprises multiple compartments, such as filter assemblies and disinfection lamps, to improve fish survival rates. The said complicated compartments may require frequent maintenance, like filter assembly. This is time-consuming and economically inefficient.

China Patent Publication No. 216135023U discloses an aquaculture device capable of improving survival rates. For the oxygen content of guaranteeing the aquatic, the accessible oxygenation pump passes through the air inlet and extracts external air, the inside of shunt tubes is carried to the rethread oxygenation pipeline, which is shunted, later carried in the oxygenation section of thick bamboo, the oxygenation hole through the oxygenation section of thick bamboo surface carries the aquatic with the air, impresses the aquatic with the air, oxygen and water fully contact in the air, in order to reach and let partial oxygen melt into the aquatic, increase watered oxygen content, then can circulate the water of breeding the inslot through pumping device and water supply installation. The invention couldimprove the quality of water to prevent pollution and provide a good growing environment for aquatic products. However, the aquaculture device requires a filter device, which may require frequent maintenance. This is time-consuming and economically inefficient. Further, this invention may be effective in improving water quality and increasing water oxygen content only, which lacks a method in tackling the low fish survival rate caused by fish disease.

SUMMARY OF THE INVENTION

It is an objective of the present invention to providea device and method for enhancing fish growth rate, survival rate and yield in aquaculture by increasing the dissolved oxygen level, water current, and water quality.

It is also an objective of the present invention to provide a device and method that could efficiently disinfect and sterilize water to reduce the number of fish diseases and improve aquaculture conditions.

It is also further an objective of the present invention to provide a device and method to improve fish nutrient absorption and reduce the incidence of fish disease.

Accordingly, these objectives may be achieved by following the teachings of the present invention. The present invention relates toa device to enhance fish growth rate, survival rate and yield, comprising of: a box body deployed with: an ozone generator and an oxygen generator; an air pressure pump connected to a cooling fan; adisplay means; wherein at least one display means is connected to an oxygen pressure indicator; a substance inlet; anda water pump; wherein the ozone generator and oxygen generator are coupled with the water pump to create water current, pressurize, and atomize ozone and oxygen, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS

The features of the invention will be more readily understood and appreciated from the following detailed description when read in conjunction with the accompanying drawings of the preferred embodiment of the present invention, in which:

FIG. 1illustrates a front-perspective view of the device to enhance fish growth rate, survival rate and yield in the present invention;

FIG. 2 illustrates a back-perspective view of the device in FIG. 1; and

FIG. 3 illustratesan example ofa graph diagram of the fish survival rate that utilizes the device and method in the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

For the purposes of promoting and understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and described in the following written specification. It is understood that the present invention includes any alterations and modifications to the illustrated embodiments and includes further applications of the principles of the invention as would normally occur to one skilled in the art to which the invention pertains.

The present invention teaches a device 100 to enhance fish growth rate, survival rate and yield, comprising of: a box body deployed with: an ozone generator 112 and an oxygen generator 114; an air pressure pump 118 connected to a cooling fan 110; a display means 102, 104; wherein at least one display means 102, 104 is connected to an oxygen pressure indicator 106; a substance inlet 116; and a water pump 108; wherein the ozone generator 112 and oxygen generator 114 are coupled with the water pump 108 to create water current, pressurize, and atomize ozone and oxygen, respectively.

In a preferred embodiment of the present invention, a molecular sieve bed is used to separate pure oxygen in the atmosphere.

In a preferred embodiment of the present invention, a reflective duct is used to convert ultraviolet light and oxygen into the generated ozone.

In a preferred embodiment of the present invention, the display means 102, 104comprises a dissolved oxygen and temperature monitor and a pH value monitor.

In a preferred embodiment of the present invention, the substance inlet 116comprises fish’s nutrients and medicines that provide a better fish diet and treat fish disease. The substance inlet116 further comprises a safe medication scale mark to calculate the appropriate dosage accurately.

In a preferred embodiment of the present invention, the pressurized and atomized ozone is configured to produce fine ozone bubbles, and the pressurized and atomized oxygen is configured to produce micro-meter-sized oxygen using at least one nozzle.

In a preferred embodiment of the present invention, a mixture of fine ozone bubbles and micro-meter-sized oxygen is carried out under a dual storage drum. The formed mixture of micro-meter-sized oxygen bubbles is configured to increase dissolved oxygen level and water current, disinfect and sterilize water, improve aquaculture conditions, and enhancefish growth rate, survival rate and yield.

In a preferred embodiment of the present invention, the device 100 comprises a cloud platform for remote controlling the device100, automatically notifying the user, responding, and taking corresponding action if detected water quality changes.

In a preferred embodiment of the present invention, the device 100 comprises software programs to control the water quality.

The present invention also teaches a method for enhancing fish growth rate, survival rate and yield, comprising the steps of: generating, pressurizing, and atomizing oxygen and ozone to produce micro-meter oxygen and fine ozone bubbles; andmixing the micro-meter oxygen and fine ozone bubbles to increase the dissolved oxygen level and water current, and disinfect and sterilize the water.

In a preferred embodiment of the present invention, the method further comprising the steps of: monitoring the dissolved oxygen, water temperature, pH value, algae concentration, and turbidity of the water; andalerting user when the dissolved oxygen in the water is lower than an acceptable level. The alert is configured to prompt the user to start the oxygenation function to respond to hypoxia.

In a preferred embodiment of the present invention, the method further comprising the steps of: adding fish’s nutrients to the water by pressurizing into fine ozone bubbles to improve the fish’s absorption; andinjecting an appropriate amount of fish’s medicines into the water by amplifying the penetrating power of the medicines and the fish’s absorption. The adding of fish’s nutrients to the water further comprising the step of: adding different elements to a farm in a timely and quantitative manner according to the needs of different weather, environments, water flow, water quality, and breeding cycles.

In a preferred embodiment of the present invention, the generating, pressurizing, and atomizing of oxygen comprising the steps of: drawing oxygen into the atmosphere to generate oxygen; pressurizing and atomizing the oxygen to produce a micro-meter form; andinjecting the micro-meter-sized oxygen into the water to increase dissolved oxygen level in the water.

In a preferred embodiment of the present invention, the generating, pressurizing, and atomizing of ozone comprising the steps of: drawing ozone; andpressurizing and atomizing the ozone to produce fine ozone bubbles.

In a preferred embodiment of the present invention, the method further comprising the step of: controlling the water quality using artificial intelligence.

EXAMPLE

FIG. 1and FIG. 2illustrate front-perspectiveand back-perspective views of the device 100 to enhance fish growth rate, survival rate and yield in the present invention. The device 100is also known as OzGen in the present invention. As illustrated in FIG. 1, the device 100consists of display means 102, 104 such as a dissolved oxygen and temperature monitor and a pH value monitor. The pH value monitor 104 is connected to an oxygen pressure indicator106. As such, the water quality of the dissolved oxygen, water temperature, acid-base value, algae concentration, and turbidity in the present invention is monitored twenty-four hours a day, seven days a week, despite the all-weather conditions. This is beneficial to the user, particularlythe fish farmer, to have early prediction and could react efficiently to tackle the problem, therefore reducing the rate of fish death. For example, when red tides come, the device 100automatically alertsthe user if the dissolved oxygen in the water is detected to be lower than an acceptable level. The user can take immediate necessary action insuch sudden situation.

As shown in FIG. 2, the ozone generator 112 is configured to draw and generate ozone simultaneously, while the oxygen generator 114 is configured to draw oxygen into the atmosphere to generate oxygen. The finely generated ozone bubbles from the ozone generator112 with the water pump 108 pressurizing could stay and float in the water for a long time due to their extremely fine details. The wider disinfection range could prevent the accumulation of bacteria and parasites, which would therefore effectively kill bacteria in the water.

The substance inlet 116in FIG. 2includes, but is not limited to nutrients and medicines inlet. For example, the user may add necessary nano-nutrients into the substance inlet116, which allows the nutrients to follow the water flow and the water pump 108 to pressurize into fine ozone bubbles for better fish absorption. This providesa comprehensive nutritional spectrum to the fish, which cannot be provided by feed. Besides, the user may inject an appropriate amount of medicine into the substance inlet116, whereina safe medication scale mark is provided to accurately calculate the appropriate dosage, which could effectively treat fish diseases.

The device 100is coupled with a plurality of water pumps108, wherein each water pump 108 creates water flow (9000L/h) and can pressurize oxygen, ozone, pure oxygen, and/or nano-nutrients into fine bubbles. The increase in water current could drive all the nutrients and/or oxygen to dissolve more effectively and wash away excretion in water for better fish health. It can actively protect fish on a large scale, further reducing fish disease and parasite invasion.

For instance, many fish fry will be injured, hypoxic, weakened, or die due to long transportation times during the fish fry season. During live fish transportation, fish fry often die due to a lack of oxygen. The device 100 in the present invention can supply fine, pure oxygen bubbles to awakenthe fish fry and recover them from stress and wounds instantly. The provided high-quality oxygen and water flow from the device 100could secure a high survival rate for fish fry and reduce economic losses even in long-hour transportation.

FIG. 3 illustrates an example of a graph diagram of the fish survival rate that utilizes the device 100 and method in the present invention. The data is collected from high-density farming and tested using the device 100 in the present invention. As shown in FIG. 3, the survival rate of sea bass was only 66%under high-density farming in 2019, wherein the device 100and method in the present invention were not utilized. In 2020 to 2022, the survival rates of pompano and batfish were greatly increased from 92%to 95%with the same surface area and high-farming density by utilizing the device 100and method in the present invention. From the survey, there was no large-scale fish disease outbreak and no parasites attached to the gills or fish bodies.

The Hong Kong Agriculture, Fisheries, and Conservation Department has tested the water quality periodically and confirmed that the bacteria and heavy material content were both below the required standard. The bacterial content is reduced by 50%compared with the same period last year after using the device 100. In general aquaculture, the fish survival rate is around 60-65%. In comparison, the fish survival rate is increased by 15-20%by utilizing the device 100, which means it provides farmers with an additional 10-15%increment in revenue and higher cost-effectiveness.

The device 100 and method in the present invention can effectively and efficiently address major challenges in high-density farming by increasing the dissolved oxygen levels in the water, water flow and current, disinfecting and sterilizing water, and adding necessary nutrients to enhance fish growth rate, survival rates and yield and reduce the risk of disease outbreaks. Accordingly, the productivity and fish’s digestion ability and health can be improved, therefore increasing the marine meat conversation rate. The device 100 in the present invention is user-friendly and convenient to use due to the easy remote control via the cloud platform.

The present invention explained above is not limited to the aforementioned embodiment and drawings, and it will be obvious to those having an ordinary skill in the art of the prevent invention that various replacements, deformations, and changes may be made without departing from the scope of the invention.

Claims

A device (100) to enhance fish growth rate, survival rate and yield, comprising of:

a box body deployed with:

an ozone generator (112) and an oxygen generator (114) ;

an air pressure pump (118) connected to a cooling fan (110) ;

a display means (102, 104) ;

wherein at least one display means (102, 104) is connected to an oxygen pressure indicator (106) ;

a substance inlet (116) ; and

a water pump (108) ;

wherein the ozone generator (112) and oxygen generator (114) are coupled with the water pump (108) to create water current, pressurize, and atomize ozone and oxygen, respectively.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein a molecular sieve bed is used to separate pure oxygen in the atmosphere.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein a reflective duct is used to convert ultraviolet light and oxygen into the generated ozone.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein the display means (102, 104) comprises a dissolved oxygen and temperature monitor and a pH value monitor.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein the substance inlet (116) comprises fish’s nutrients and medicines that provide a better fish diet and treat fish disease.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 5, wherein the substance inlet (116) further comprises a safe medication scale mark to calculate the appropriate dosage accurately.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein the pressurized and atomized ozone is configured to produce fine ozone bubbles and the pressurized and atomized oxygen is configured to produce micro-meter-sized oxygen using at least one nozzle.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 7, wherein a mixture of fine ozone bubbles and micro-meter-sized oxygen is carried out under a dual storage drum.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 8, wherein the formed mixture of micro-meter-sized oxygen bubbles is configured to increase dissolved oxygen level and water current, disinfect and sterilize water, improve aquaculture conditions, and enhance fish survival rate and yield.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein the device (100) comprises a cloud platform for remote controlling the device (100) , automatically notifying the user, responding, and taking corresponding action if detected water quality changes.
The device (100) to enhance fish growth rate, survival rate and yield, according to claim 1, wherein the device (100) comprises software programs to control the water quality.
A method for enhancing fish growth rate, survival rate and yield, comprising the steps of:

generating, pressurizing, and atomizing oxygen and ozone to produce micro-meter oxygen and fine ozone bubbles; and

mixing the micro-meter oxygen and fine ozone bubbles to increase the dissolved oxygen level and water current, and disinfect and sterilize the water.
The method for enhancing fish growth rate, survival rate and yield, according to claim 12, wherein method further comprising the steps of:

monitoring the dissolved oxygen, water temperature, pH value, algae concentration, and turbidity of the water; and

alerting user when the dissolved oxygen in the water is lower than an acceptable level.
The method for enhancing fish growth rate, survival rate and yield, according to claim 12, wherein the method further comprising the steps of:

adding fish’s nutrients to the water by pressurizing into fine ozone bubbles to improve the fish’s absorption; and

injecting an appropriate amount of fish’s medicines into the water by amplifying the penetrating power of the medicines and the fish’s absorption.
The method for enhancing fish growth rate, survival rate and yield, according to claim 14, wherein the adding of fish’s nutrients to the water further comprising the step of:

adding different elements to a farm in a timely and quantitative manner according to the needs of different weather, environments, water flow, water quality, and breeding cycles.
The method for enhancing fish growth rate, survival rate and yield, according to claim 12, wherein the generating, pressurizing, and atomizing of oxygen comprising the steps of:

drawing oxygen into the atmosphere to generate oxygen;

pressurizing and atomizing the oxygen to produce a micro-meter form; and

injecting the micro-meter-sized oxygen into the water to increase dissolved oxygen level in the water.
The method for enhancing fish growth rate, survival rate and yield, according to claim 12, wherein the generating, pressurizing, and atomizing of ozone comprising the steps of:

drawing ozone; and

pressurizing and atomizing the ozone to produce fine ozone bubbles.
The method for enhancing fish growth rate, survival rate and yield, according to claim 12, wherein the method further comprising the step of: controlling the water quality using artificial intelligence.