CN103782926A - Device and method for reducing heat stress in poultry transportation in summer - Google Patents
Device and method for reducing heat stress in poultry transportation in summer Download PDFInfo
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- CN103782926A CN103782926A CN201410052139.0A CN201410052139A CN103782926A CN 103782926 A CN103782926 A CN 103782926A CN 201410052139 A CN201410052139 A CN 201410052139A CN 103782926 A CN103782926 A CN 103782926A
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Abstract
The invention discloses a device and method for reducing heat stress in poultry transportation in summer. The device is characterized by comprising a cooling chamber (1) and a cooling device (2); the cooling device (2) comprises a water supply unit (3), a spraying-ventilating unit (4) and a circuit unit. The method is a cooling method through using the device. According to the device and method for reducing the heat stress in poultry transportation in summer, fans (comprising a suction fan and axial flow fans) are used in combination with atomizing spray heads, so that the effects of atomizing spraying, three-dimensional ventilation and rapid cooling are achieved; processing quality of slaughtered poultry is effectively guaranteed, the conditions of water loss and meat quality softening are improved, meanwhile, production cost of an enterprise is reduced, and the needed device is simple, easy and convenient to operate, high in operability and suitable for being widely popularized and applied.
Description
Technical field
The present invention relates to a kind of reduce poultry transporting hot in summer stress device and method, belong to environmental control system technical field, be specifically related to a kind of heat stress producing in transportation in summer for poultry and carry out the device and method of anti-heat stress.
Background technology
Under summer high temperature (30 ℃ of ambient air temperature >) condition, poultry is because the high temperature in inadaptable transportation can produce heat stress.The concept of so-called heat stress is the upper limit (excessive temperature that exceedes the hot-zones such as poultry when environmental temperature, the excessive temperature of poultry is generally in 32 degree left and right, kind with poultry, age, starvations etc. have substantial connection) time, body heat radiation is obstructed, physics regulates can not maintain thermostasis, accumulation of heat in body, hyperthermia, metabolic rate also raises, the increase of heat production has further increased the weight of accumulating of body heat, finally cause high heat to be delaied, there is insanity, endocrinopathy, mouth breathing, appetite is absolutely useless, drinking-water increases, the productivity even dead phenomenon that significantly declines.Simply heat stress is under hot climate condition, and temperature exceedes the body heat regulation ability of poultry own, causes a kind of idiosyncrasy that poultry body produces.The lighter affects metabolism, and severe one collapse is dead.The heat stress that poultry produces in transportation is different from the heat stress producing in pouity dwelling place, and the cooling method of taking is also different; Existing bird heat sink focuses mostly on aeration-cooling in using cascade to carry out pouity dwelling place, and because bird in pouity dwelling place is that plane formula distributes, fowl body heat content is evenly and distributes in pouity dwelling place, therefore use cascade cooling can meet the cooling requirement under this kind of condition; And bird on fortune fowl car is three-dimensional loading, in the middle of fortune fowl car, the fowl of portion is only the most easily because ventilate not freely on the lower, and excess Temperature and death, therefore adopt traditional pouity dwelling place heat sink effectively to lower the temperature to the bird of transporting on fowl car.
Heat stress is unfavorable to killing rear Quality of poultry meatan issue of growing importance, produce after killing when fresh and when the cooking heating juice ooze out too much economic characters loss.In order to reduce this heat stress phenomenon, present poultry processing enterprise is generally transported to behind slaughter house poultry, reduces poultry heat stresses by 3 kinds of ways: 1), governments official fowl car is docked to spacious paulin rest; 2), the top water pipe (ordinary tap water pipe, the about 2CM of interior diameter) that carries fowl car from top to bottom artificial shower then have a rest about half an hour; 3), then have a rest about half an hour with the blowing of Wind Volume blower fan in year fowl car side; Wherein way 2) and 3) can be used in combination simultaneously.
Adopt way 2), local easily cold water shower too much causes that poultry cold stimulation is unfavorable to Quality of poultry meatan issue of growing importance, and all the other positions can not get effective temperature-reducing; Way 3) limitation be to carry chicken car to be subject to the impact of side exposed space and to make practical function in the deficiency in draught of poultry under spacious paulin condition, ventilate and cooling-down effect undesirable; Way 1) limitation be that temperature fall time is long, can not effectively alleviate heat stress, often there will be poultry to kill before dead phenomenon.
The present invention adopts the technical scheme of being combined with drawing-in type top draft type from bottom to top to the atomization cooling method of centre spray from wall, form three-dimensional atomization turbulent flow, can fast and effeciently lower the temperature to the bird on fortune fowl car, quality of poultry after guaranteeing to kill, its technique effect is better than above 3 kinds of ways.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of reduce poultry transporting hot in summer stress device and method, can reduce in the short period of time transportation vehicle interior temperature, effectively and fast alleviate the heat stress situation of poultry after transportation in summer, be conducive to guarantee to kill the processing quality of rear poultry, improve the situation of water loss and meat deliquescing.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Reduce poultry transporting hot in summer stress a device, it is characterized in that: comprise temperature reduction house and heat sink;
Described heat sink comprises for water unit, spray-unit ventilators and circuit unit;
The described water unit that supplies comprises immersible pump, water pipe, high-pressure pump and filter;
Described spray-unit ventilators comprises some shower nozzles and blower fan;
Described blower fan comprises air exhauster and several axial flow blowers;
Described circuit unit comprises distribution box and electric wire;
Described temperature reduction house comprises side wall two sides, Hou Qiang, roof and for replacing the rolling screen door of front wall; Described axial flow blower is installed on described in two sides on side wall, and described air exhauster is installed on described roof; The delivery port of described immersible pump accesses the water inlet of described filter, the delivery port of described filter is connected with the water inlet of described high-pressure pump, the delivery port of described high-pressure pump is connected with described water pipe, on described water pipe, be provided with some described shower nozzles, described water pipe rack is located on described rear wall and two sides side wall and is positioned at the top of described axial flow blower.
Described distribution box be installed on temperature reduction house indoor or outdoors all can, described electric wire be embedded in described side wall and after within the walls, connect described distribution box and heat sink by electric wire.
Described water pipe is the U-shaped water pipe of closed loop; Described water pipe comprises the downcomer and the upper hose that be arranged in parallel; Described axial flow blower comprises several left axial flow blowers and several right axial flow blowers, and described left axial flow blower is parallel to be installed on the described side wall in left side, and described right axial flow blower is parallel to be installed on described in right side on side wall.
Vertical range between described left axial flow blower and described downcomer is 1000 ~ 1600mm, vertical range between described right axial flow blower and described upper hose is 800 ~ 1200mm, the vertical range on described left axial flow blower and ground is 1400 ~ 1800mm, the vertical range on described right axial flow blower and ground is 2300 ~ 2700mm, the height of described side wall is 4200 ~ 4600mm, the length of described side wall is 11000 ~ 13000mm, horizontal range between described left axial flow blower is 2800 ~ 3200mm, horizontal range between horizontal range between described right axial flow blower and described left axial flow blower equates, be 3800 ~ 4200mm near the described left axial flow blower of described rolling screen door and the horizontal range of described rolling screen door, be 2300 ~ 2700mm near the described right axial flow blower of described rolling screen door and the horizontal range of described rolling screen door, the number of described left axial flow blower and right axial flow blower is 3.
The length of described rear wall is 4800 ~ 5200mm, and described high-pressure pump is connected with described water pipe by described rear wall, is provided with the valve for adjusting water outlet pressure between described high-pressure pump and water pipe; In described temperature reduction house, be also provided with temperature indicating device and temperature sensor.
The diameter of described axial flow blower is 390mm, and rated power is 0.55kw, and model is T35-11-3.15, and the air-out direction of described axial flow blower is indoor.
Described air exhauster is positioned at the center on described roof, and the rated power of described air exhauster is 0.75kw, and model is xwy-146x6.
The spacing of adjacent described shower nozzle is 2300 ~ 2700mm, and the water outlet direction of described shower nozzle is all pointed within doors, and described shower nozzle is spraying nozzle, and the diameter that drips of ejection is less than 0.5mm.
The material of described filter is 304 stainless steels.
Described high-pressure pump is high-pressure plunger pump, and rated power is 1.5kw, and maximum pressure reaches 5MPa and discharge pressure is adjustable, and model is 3SY35-0.82/2.5.
Reduce poultry transporting hot in summer stress a method, it is characterized in that: comprise the following steps:
Step 1: open rolling screen door, the truck of fully loaded cage mounted poultry is fallen back and enters temperature reduction house, close rolling screen door;
Step 2: open air exhauster, axial flow blower and shower nozzle, spray-ventilation operation, spray-ventilation time is 8 ~ 12min, completes after spray-ventilation operation, closes air exhauster, axial flow blower and shower nozzle;
Step 3: again open rolling screen door, truck is outputed temperature reduction house, rests at sunless spacious paulin, and the time of resting is 28 ~ 32min, guarantees that spray-ventilation time and the summation of the time of resting are 40min, then slaughters poultry.
Described poultry comprises broiler chicken and meat duck.
Provided by the invention a kind of reduce poultry transporting hot in summer stress device and method, heat stress situation for poultry after transportation in summer, design poultry and killed front atomizing spray-Three-D ventilation system, i.e. spray-unit ventilators, use heat exchange principle, adopt vaporization cooling method, the underground water of 14-18 ℃ is by high-pressure plunger pump boost pressure regulation, spray with superfine particle through atomizer, fully mix with air in temperature reduction house, water smoke absorbs amount of heat in vaporescence, the axial flow blower of being installed by side wall again and the air exhauster on top are worked jointly, accelerate air three-dimensional mobile, vaporization rate is accelerated, can in 3-5 minute, reduce indoor temperature 6-10 ℃.Fetch water with traditional water pipe and strong wind pusher side top blast wind facies ratio, can fast and effeciently alleviate the heat stress situation of poultry after transportation in summer, be conducive to the situation that assurance is killed the processing quality of rear poultry, improved water loss.In addition, spray ventilating system can utilize existing spacious paulin to transform, and without additionally taking up an area, does not affect the smooth and easy of wagon flow and the stream of people.Provided by the invention a kind of reduce poultry transporting hot in summer stress device and method, adopt the technical scheme of being combined with drawing-in type top draft type from bottom to top to the atomization cooling method of centre spray from wall, form three-dimensional atomization turbulent flow, blower fan (comprising air exhauster and axial flow blower) and atomizer combination are used, reached the effect of atomizing spray-stereoscopic ventilation-fast cooling; Effectively guaranteed poultry after killing processing quality, improve the situation of water loss and meat deliquescing, its beneficial effect is obviously better than 3 kinds of ways of tradition; Simultaneously for enterprise has reduced production cost, and equipment needed thereby is simple, easy and simple to handle, workable, is applicable to wide popularization and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
embodiment 1:
As Fig. 1 ~ 2 show, a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: comprise temperature reduction house 1 and heat sink 2;
Described heat sink 2 comprises for water unit 3, spray-unit ventilators 4 and circuit unit;
The described water unit 3 that supplies comprises immersible pump 12, water pipe 5, high-pressure pump 6 and filter 7;
Described spray-unit ventilators 4 comprises some shower nozzles 8 and blower fan 9;
Described blower fan 9 comprises air exhauster 11 and several axial flow blowers 10;
Described circuit unit comprises distribution box and electric wire;
Described temperature reduction house 1 comprises side wall two sides, Hou Qiang, roof and for replacing the rolling screen door of front wall; Described axial flow blower 10 is installed on described in two sides on side wall, and described air exhauster 11 is installed on described roof; The delivery port of described immersible pump 12 accesses the water inlet of described filter 7, the delivery port of described filter 7 is connected with the water inlet of described high-pressure pump 6, the delivery port of described high-pressure pump 6 is connected with described water pipe 5, on described water pipe 5, be provided with some described shower nozzles 8, described water pipe 5 is erected on described rear wall and two sides side wall and is positioned at the top of described axial flow blower 10.
Described water pipe 5 is the U-shaped water pipe of closed loop; Described water pipe 5 comprises the downcomer 13 and the upper hose 14 that be arranged in parallel; Described axial flow blower 10 comprises several left axial flow blower 15 and several right axial flow blowers 16, and described left axial flow blower 15 is parallel to be installed on the described side wall in left side, and described right axial flow blower 16 is parallel to be installed on described in right side on side wall.
Vertical range between described left axial flow blower 15 and described downcomer 13 is 1400mm, vertical range between described right axial flow blower 16 and described upper hose 14 is 1000mm, described left axial flow blower 15 is 1600mm with the vertical range on ground, described right axial flow blower 16 is 2500mm with the vertical range on ground, the height of described side wall is 4400mm, the length of described side wall is 12000mm, horizontal range between described left axial flow blower 15 is 3000mm, horizontal range between horizontal range between described right axial flow blower 16 and described left axial flow blower 15 equates, described left axial flow blower 15 near described rolling screen door is 4000mm with the horizontal range of described rolling screen door, described right axial flow blower 16 near described rolling screen door is 2500mm with the horizontal range of described rolling screen door, the number of described left axial flow blower 15 and right axial flow blower 16 is 3.
The length of described rear wall is 5000mm, and described high-pressure pump 6 is connected with described water pipe 5 by described rear wall, between described high-pressure pump 6 and water pipe 5, is provided with the valve for adjusting water outlet pressure; In described temperature reduction house 1, be also provided with temperature indicating device and temperature sensor.
The diameter of described axial flow blower 10 is 390mm, and rated power is 0.55kw, and model is T35-11-3.15, and the air-out direction of described axial flow blower 10 is indoor.
Described air exhauster 11 is positioned at the center on described roof, and the rated power of described air exhauster 11 is 0.75kw, and model is xwy-146x6.
The spacing of adjacent described shower nozzle 8 is 2500mm, and the water outlet direction of described shower nozzle 8 is all pointed within doors, and described shower nozzle 8 is spraying nozzle, and the diameter that drips of ejection is less than 0.5mm.
The material of described filter 7 is 304 stainless steels.
Described high-pressure pump 6 is high-pressure plunger pump, and rated power is 1.5kw, and maximum pressure reaches 5MPa and discharge pressure is adjustable, and model is 3SY35-0.82/2.5.
Reduce poultry transporting hot in summer stress a method, it is characterized in that: comprise the following steps:
Step 1: open rolling screen door, the truck of fully loaded cage mounted broiler chicken is fallen back and enters temperature reduction house 1, close rolling screen door;
Step 2: open air exhauster 11, axial flow blower 10 and shower nozzle 8, spray-ventilation operation, spray-ventilation time is 10min, completes after spray-ventilation operation, closes air exhauster 11, axial flow blower 10 and shower nozzle 8;
Step 3: again open rolling screen door, truck is outputed temperature reduction house 1, rests at sunless spacious paulin, and the time of resting is 30min, guarantees that spray-ventilation time and the summation of the time of resting are 40min, then slaughters broiler chicken.
Contrasting 1 group is that the truck that is fully loaded with cage mounted broiler chicken is rested 40 minutes at same spacious paulin; Contrasting 2 groups is traditional trickle blowing group, drenches the as much water yield with running water pipe from truck top in chicken coop, simultaneously with 2 of Wind Volume blower fans truck middle part blowing 10 minutes, then rest 30 minutes at spacious paulin; Three groups of above broiler chicken are slaughtered by same operation, get brisket and measure its drip loss and cooking loss; Contrast 1 group, the drip loss of contrast 2 groups and of the present invention group and be respectively 3.75%, 2.37%, 1.9%, cooking loss is respectively 13.59%, 12.11%, 10.11%.Visible utilization the present invention can than contrast 1 group, contrast 2 groups reduce respectively drip loss 1.85% and 0.47%, reduce respectively cooking loss 3.48 and 2.00%, thereby reduced the economic loss of enterprise.
embodiment 2:
As Fig. 1 ~ 2 show, a kind of reduce poultry transporting hot in summer stress device, content is with the content of the device part in embodiment 1.
Reduce poultry transporting hot in summer stress a method, it is characterized in that: comprise the following steps:
Step 1: open rolling screen door, the truck of fully loaded cage mounted broiler chicken is fallen back and enters temperature reduction house 1, close rolling screen door;
Step 2: open air exhauster 11, axial flow blower 10 and shower nozzle 8, spray-ventilation operation, spray-ventilation time is 8min, completes after spray-ventilation operation, closes air exhauster 11, axial flow blower 10 and shower nozzle 8;
Step 3: again open rolling screen door, truck is outputed temperature reduction house 1, rests at sunless spacious paulin, and the time of resting is 32min, guarantees that spray-ventilation time and the summation of the time of resting are 40min, then slaughters broiler chicken.
Contrasting 1 group is that the truck that is fully loaded with cage mounted broiler chicken is rested 40 minutes at same spacious paulin; Contrasting 2 groups is traditional trickle blowing group, drenches the as much water yield with running water pipe from truck top in chicken coop, simultaneously with 2 of Wind Volume blower fans truck middle part blowing 8 minutes, then rest 32 minutes at spacious paulin; Three groups of above broiler chicken are slaughtered by same operation, get brisket and measure its drip loss and cooking loss; Contrast 1 group, the drip loss of contrast 2 groups and of the present invention group and be respectively 3.75%, 2.37%, 2.0%, cooking loss is respectively 13.59%, 12.11%, 10.23%.Visible utilization the present invention can than contrast 1 group, contrast 2 groups reduce respectively drip loss 1.75% and 0.37%, reduce respectively cooking loss 3.36 and 1.88%, thereby reduced the economic loss of enterprise.
embodiment 3:
As Fig. 1 ~ 2 show, a kind of reduce poultry transporting hot in summer stress device, content is with the content of the device part in embodiment 1.
Reduce poultry transporting hot in summer stress a method, it is characterized in that: comprise the following steps:
Step 1: open rolling screen door, the truck of fully loaded cage mounted broiler chicken is fallen back and enters temperature reduction house 1, close rolling screen door;
Step 2: open air exhauster 11, axial flow blower 10 and shower nozzle 8, spray-ventilation operation, spray-ventilation time is 12min, completes after spray-ventilation operation, closes air exhauster 11, axial flow blower 10 and shower nozzle 8;
Step 3: again open rolling screen door, truck is outputed temperature reduction house 1, rests at sunless spacious paulin, and the time of resting is 28min, guarantees that spray-ventilation time and the summation of the time of resting are 40min, then slaughters broiler chicken.
Contrasting 1 group is that the truck that is fully loaded with cage mounted broiler chicken is rested 40 minutes at same spacious paulin; Contrasting 2 groups is traditional trickle blowing group, drenches the as much water yield with running water pipe from truck top in chicken coop, simultaneously with 2 of Wind Volume blower fans truck middle part blowing 12 minutes, then rest 28 minutes at spacious paulin; Three groups of above broiler chicken are slaughtered by same operation, get brisket and measure its drip loss and cooking loss; Contrast 1 group, the drip loss of contrast 2 groups and of the present invention group and be respectively 3.75%, 2.37%, 1.86%, cooking loss is respectively 13.59%, 12.11%, 10.05%.Visible utilization the present invention can than contrast 1 group, contrast 2 groups reduce respectively drip loss 1.89% and 0.51%, reduce respectively cooking loss 3.54 and 2.06%, thereby reduced the economic loss of enterprise.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. reduce poultry transporting hot in summer stress a device, it is characterized in that: comprise temperature reduction house (1) and heat sink (2);
Described heat sink (2) comprises for water unit (3), spray-unit ventilators (4) and circuit unit;
The described water unit (3) that supplies comprises immersible pump (12), water pipe (5), high-pressure pump (6) and filter (7);
Described spray-unit ventilators (4) comprises some shower nozzles (8) and blower fan (9);
Described blower fan (9) comprises air exhauster (11) and several axial flow blowers (10);
Described circuit unit comprises distribution box and electric wire;
Described temperature reduction house (1) comprises side wall two sides, Hou Qiang, roof and for replacing the rolling screen door of front wall; Described axial flow blower (10) is installed on described in two sides on side wall, and described air exhauster (11) is installed on described roof; The delivery port of described immersible pump (12) accesses the water inlet of described filter (7), the delivery port of described filter (7) is connected with the water inlet of described high-pressure pump (6), the delivery port of described high-pressure pump (6) is connected with described water pipe (5), on described water pipe (5), be provided with some described shower nozzles (8), described water pipe (5) is erected on described rear wall and two sides side wall and is positioned at the top of described axial flow blower (10).
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: described water pipe (5) is the U-shaped water pipe of closed loop; Described water pipe (5) comprises the downcomer (13) and the upper hose (14) that be arranged in parallel; Described axial flow blower (10) comprises several left axial flow blowers (15) and several right axial flow blowers (16), described left axial flow blower (15) is parallel to be installed on the described side wall in left side, and described right axial flow blower (16) is parallel to be installed on described in right side on side wall.
According to claim 2 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: the vertical range between described left axial flow blower (15) and described downcomer (13) is 1000 ~ 1600mm, vertical range between described right axial flow blower (16) and described upper hose (14) is 800 ~ 1200mm, described left axial flow blower (15) is 1400 ~ 1800mm with the vertical range on ground, described right axial flow blower (16) is 2300 ~ 2700mm with the vertical range on ground, the height of described side wall is 4200 ~ 4600mm, the length of described side wall is 11000 ~ 13000mm, horizontal range between described left axial flow blower (15) is 2800 ~ 3200mm, horizontal range between horizontal range between described right axial flow blower (16) and described left axial flow blower (15) equates, be 3800 ~ 4200mm near the described left axial flow blower (15) of described rolling screen door and the horizontal range of described rolling screen door, be 2300 ~ 2700mm near the described right axial flow blower (16) of described rolling screen door and the horizontal range of described rolling screen door, the number of described left axial flow blower (15) and right axial flow blower (16) is 3.
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: the length of described rear wall is 4800 ~ 5200mm, described high-pressure pump (6) is connected with described water pipe (5) by described rear wall, between described high-pressure pump (6) and water pipe (5), is provided with the valve for adjusting water outlet pressure; Described temperature reduction house is also provided with temperature indicating device and temperature sensor in (1).
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: the diameter of described axial flow blower (10) is 390mm, rated power is 0.55kw, and model is T35-11-3.15, and the air-out direction of described axial flow blower (10) is indoor.
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: described air exhauster (11) is positioned at the center on described roof, the rated power of described air exhauster (11) is 0.75kw, model is xwy-146x6.
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: the spacing of adjacent described shower nozzle (8) is 2300 ~ 2700mm, the water outlet direction of described shower nozzle (8) is all pointed within doors, described shower nozzle (8) is spraying nozzle, and the diameter that drips of ejection is less than 0.5mm.
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: the material of described filter (7) is 304 stainless steels.
According to claim 1 a kind of reduce poultry transporting hot in summer stress device, it is characterized in that: described high-pressure pump (6) is high-pressure plunger pump, and rated power is 1.5kw, and maximum pressure reaches 5MPa and discharge pressure is adjustable.
10. reduce poultry transporting hot in summer stress a method, it is characterized in that: comprise the following steps:
Step 1: open rolling screen door, the truck of fully loaded cage mounted poultry is fallen back and enters temperature reduction house (1), close rolling screen door;
Step 2: open air exhauster (11), axial flow blower (10) and shower nozzle (8), spray-ventilation operation, spray-ventilation time is 8 ~ 12min, completes after spray-ventilation operation, closes air exhauster (11), axial flow blower (10) and shower nozzle (8);
Step 3: again open rolling screen door, truck is outputed temperature reduction house (1), rests at sunless spacious paulin, and the time of resting is 28 ~ 32min, guarantees that spray-ventilation time and the summation of the time of resting are 40min, then slaughters poultry.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104429981A (en) * | 2014-12-18 | 2015-03-25 | 中国农业大学 | Push type flat nozzle ventilation system for dairy cow house |
| CN109105445A (en) * | 2018-08-02 | 2019-01-01 | 仲恺农业工程学院 | A kind of method that summer butchers pigeon for meat |
| WO2020052031A1 (en) * | 2018-09-14 | 2020-03-19 | 南京农业大学 | Automatic pre-slaughter management system |
| CN111567408A (en) * | 2018-10-27 | 2020-08-25 | 杜瑞青 | Dog cooling consignment box based on cooling water curtain structure and use method |
| CN114097662A (en) * | 2021-10-21 | 2022-03-01 | 温氏食品集团股份有限公司 | Cooling system and method for poultry sales platform |
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