Preparation equipment and preparation method of Chinese herbal medicine feed additive for promoting growth of meat rabbits

Abstract

The present invention relates to the technical field of meat rabbit breeding, and discloses a preparation device and a preparation method of a Chinese herbal medicine feed additive for promoting the growth of meat rabbits, comprising a base, and a quantitative feeding mechanism is fixed between the tops of two support plates. The preparation device of the Chinese herbal medicine feed additive for promoting the growth of meat rabbits, after the feed additive is passed into the mixing box, the mixing box sinks, and the guide plate and the feeding pipeline move down accordingly, the amount of feed additive passed determines the spacing between the first sealing plate and the second sealing plate, thereby determining the amount of nasturtium dregs added, after the crushed nasturtium dregs are passed into the feeding barrel, the first sealing plate moves right, the first piston is unlocked and continues to move right, and the second piston and the second sealing plate move left, so that a certain proportion of nasturtium dregs is conveniently added to the feed additive for mixing and preparing the material, and the weaned rabbits are fed normally, and the nasturtium dregs can promote the feed intake of meat rabbits, affect the daily weight gain of meat rabbits and reduce the pH of meat rabbit muscles.

Description

Technical Field

[0001] The invention relates to the technical field of meat rabbit breeding, in particular to a preparation device and a preparation method of a Chinese herbal medicine feed additive for promoting the growth of meat rabbits. Background Art

[0002] Rabbit meat is high in protein, low in fat and cholesterol. Calculated on a dry matter basis, the protein content of rabbit meat is as high as 70%, while the fat and cholesterol content is lower than most meats, earning it the reputation of "vegetarian among meats". The global production of rabbit meat is around 900,000 tons, and my country's rabbit meat production is about 500,000 tons, accounting for more than half of the global total. my country has become a major producer and consumer of rabbit meat. In addition, in the process of rabbit breeding, improving the growth performance and meat quality of rabbits has direct economic benefits for rabbit companies. Exploring the effects of nasturtium medicinal residues on the growth performance and meat quality of rabbits, as well as serum biochemical and inflammatory indicators, has practical value for the reuse of nasturtium medicinal residues, and has a positive effect on the development of rabbit companies. It also conforms to the social values ​​of ecological and environmentally friendly breeding. The medicinal value of nasturtium It is extremely high and can treat a variety of clinical diseases such as upper respiratory tract infection, tonsillitis, pharyngitis, acute otitis media, acute tympanitis, acute conjunctivitis and acute lymphangitis. Although its medicinal function has been deeply explored, the treatment of Nasturtium dregs mainly includes stacking, burial and incineration, which not only consumes a lot of resources and has low utilization rate, but is also extremely unfriendly to the environment, seriously limiting the further release of Nasturtium industry applications. Through the initial screening and crushing of Nasturtium dregs and further use as feed additives, it conforms to an environmentally friendly development model and promotes the healthy development of meat rabbit breeding.

[0003] It is difficult to accurately control the amount of nasturtium residue added during the preparation process of existing Chinese herbal feed additives. The amount of nasturtium residue added varies with the amount of feed additives, and the proportioning is not accurate and convenient. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a preparation device and a preparation method of a Chinese herbal feed additive for promoting the growth of meat rabbits, so as to solve the problem that the existing Chinese herbal feed additives proposed in the above background technology are difficult to accurately control the amount of nasturtium residue added during the preparation process, and the amount of nasturtium residue added changes with the amount of feed additives, and the proportioning is not accurate and convenient enough.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A Chinese herbal feed additive for promoting the growth of meat rabbits, comprising a base, a groove is provided on the top of the base, a first compression spring is fixed in the groove, a support plate is fixed on the top of the first compression spring, a mixing box is fixed on the top of the support plate, an electric stirrer is fixed on the top of the mixing box, a feed port is fixed on the top of the mixing box, a discharge pipe is fixed on the bottom of the mixing box, support plates are symmetrically fixed on both sides of the upper end surface of the base, and a quantitative feeding mechanism is fixed between the tops of the two support plates.

[0006] Preferably, a limiting column is fixed on the bottom of the support plate, a limiting groove is provided on the top of the base, and the limiting column is slidably connected in the limiting groove.

[0007] Preferably, the quantitative feeding mechanism includes a feeding barrel, and the feeding barrel is fixed between the tops of the two support plates, a feeding channel is fixed at the bottom of the feeding barrel, and a material guide plate is slidably connected in the feeding channel, a feeding pipe is fixed on the material guide plate, and the feeding pipe is fixed at the top of the mixing box.

[0008] Preferably, a support frame is fixed to one side of the mixing box and one side of the feed pipe, and a first electric telescopic rod is fixed to the inner wall of the support frame, and a knocking block is fixed to one end of the first electric telescopic rod.

[0009] Preferably, a bracket is fixed on the other side of the mixing box, and a second electric telescopic rod is fixed to the bottom of the bracket, a movable frame is fixed to one end of the second electric telescopic rod, the movable frame passes through one side of the first airtight channel, and a first piston is slidably connected in the first airtight channel, and the first piston is connected to an inner wall of the first airtight channel through a second compression spring.

[0010] Preferably, a support rod is fixed on the other inner wall of the first airtight channel, and the support rod passes through the other side of the first airtight channel and is connected to the first sealing plate, and the first sealing plate passes through one side of the feeding channel.

[0011] Preferably, a limiting block is fixed on the top of the first airtight channel, and a limiting rod passes through the limiting block, and the limiting rod is fixed on one side of the feeding channel.

[0012] Preferably, a push rod passes through the limit block, and an extrusion block is fixed to one end of the push rod, a movable block is wedge-fittedly connected to one side of the extrusion block, and a locking block is fixed to one side of the movable block, the locking block is connected to the top of the first airtight channel through a tension spring, a slot is provided at the top of the first piston, and the locking block passes through the top of the first airtight channel and is snap-connected in the slot.

[0013] Preferably, a second airtight channel is fixed on one side of the feed pipeline, and the second airtight channel is connected to the first airtight channel through a connecting hose, a second piston is slidably connected in the second airtight channel, and a second sealing plate is fixed on one side of the second piston, and the second sealing plate extends into the feed pipeline.

[0014] A method for preparing a Chinese herbal medicine feed additive for promoting the growth of meat rabbits comprises the following steps:

[0015] S1, feed additives are passed into the mixing box, the mixing box sinks, the guide plate and the feeding pipe move down, and then the crushed golden lotus residues are passed into the feeding barrel, the golden lotus residues enter the feeding channel and the feeding pipe, and the second sealing plate blocks the golden lotus residues;

[0016] S2, the moving frame, the first airtight channel, the first piston, the support rod and the first sealing plate are moved right as a whole to seal the feeding channel, the outer wall of the feeding channel squeezes the push rod, the squeezing block squeezes the movable block, and the locking block moves up with the movable block and unlocks the first piston;

[0017] S3. The first piston continues to move right, and the second piston and the second sealing plate move left, thereby opening the feed pipe, so that a certain amount of tunghua residue can be passed into the mixing box. Finally, the tunghua residue and the feed additive are fully mixed together by an electric stirrer, and the electric valve in the discharge pipe can be opened to discharge the mixed Chinese herbal feed additive.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The preparation equipment of the Chinese herbal medicine feed additive for promoting the growth of meat rabbits, after the feed additive is passed into the mixing box, the mixing box sinks, and the guide plate and the feeding pipe move down accordingly, the amount of feed additive passed determines the distance between the first sealing plate and the second sealing plate, thereby determining the amount of truncatum dregs added, after the crushed truncatum dregs are passed into the feeding barrel, the truncatum dregs will enter the feeding channel and the feeding pipe, and when the movable frame moves to the right, it will drive the first airtight channel, the first piston, the support rod and the first sealing plate to move to the right, after the first sealing plate moves to the right to the bottom, the first piston is unlocked and continues to move to the right, and the second piston and the second sealing plate move to the left, so as to facilitate the addition of a certain proportion of truncatum dregs to the feed additive for mixing and preparing the material, and to carry out normal feeding management for weaned rabbits, and the truncatum dregs can promote the feed intake of meat rabbits, affect the daily weight gain of meat rabbits and reduce the pH of meat rabbit muscles;

[0020] 2. In the process of feeding materials into the feeding barrel and opening the second sealing plate to feed materials into the mixing box, the corresponding knocking block will move back and forth, which is convenient for repeatedly knocking the feeding barrel or feeding pipe to quickly discharge materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a right-side stereoscopic structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the quantitative feeding mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 6 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1, base; 2, groove; 3, first compression spring; 4, support plate; 5, limit column; 6, limit groove; 7, mixing box; 8, electric stirrer; 9, feed port; 10, discharge pipe; 11, quantitative feeding mechanism; 1101, feed barrel; 1102, discharge channel; 1103, guide plate; 1104, feed pipe; 1105, support frame; 1106, first electric telescopic rod; 1107, knocking block; 1108, bracket; 1109, second electric telescopic rod; 1110, shift Moving frame; 1111, first airtight channel; 1112, first piston; 1113, second compression spring; 1114, support rod; 1115, first closing plate; 1116, limiting rod; 1117, limiting block; 1118, push rod; 1119, extrusion block; 1120, movable block; 1121, locking block; 1122, tension spring; 1123, slot; 1124, connecting hose; 1125, second airtight channel; 1126, second piston; 1127, second closing plate; 12, support plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-6The present invention provides a technical solution: a preparation device for a Chinese herbal feed additive for promoting the growth of meat rabbits, comprising a base 1, a groove 2 is opened on the top of the base 1, a first compression spring 3 is fixed in the groove 2, a support plate 4 is fixed on the top of the first compression spring 3, a mixing box 7 is fixed on the top of the support plate 4, an electric stirrer 8 is fixed on the top of the mixing box 7, a feed port 9 is fixed on the top of the mixing box 7, a discharge pipe 10 is fixed on the bottom of the mixing box 7, support plates 12 are symmetrically fixed on both sides of the upper end surface of the base 1, and a quantitative feeding mechanism 11 is fixed between the tops of the two support plates 12.

[0030] In this embodiment, Figure 3 As shown, a limiting column 5 is fixed at the bottom of the support plate 4, and a limiting groove 6 is provided on the top of the base 1. The limiting column 5 is slidably connected in the limiting groove 6. When feed additives are introduced into the mixing box 7, the mixing box 7 becomes heavier and the support plate 4 sinks. At this time, the limiting column 5 slides in the limiting groove 6, which facilitates the limiting function.

[0031] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the quantitative feeding mechanism 11 includes a feeding barrel 1101, and the feeding barrel 1101 is fixed between the tops of the two support plates 12, a feeding channel 1102 is fixed at the bottom of the feeding barrel 1101, and a guide plate 1103 is slidably connected in the feeding channel 1102, a feeding pipe 1104 is fixed on the guide plate 1103, and the feeding pipe 1104 is fixed on the top of the mixing box 7. In the process of introducing feed additives into the mixing box 7, the mixing box 7 becomes heavier and sinks, and the feeding pipe 1104 and the guide plate 1103 move downward accordingly, so as to facilitate the adjustment of the available capacity of the feeding channel 1102.

[0032] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, a support frame 1105 is fixed to one side of the mixing box 7 and one side of the feeding pipe 1104, and a first electric telescopic rod 1106 is fixed to the inner wall of the support frame 1105, and a knocking block 1107 is fixed to one end of the first electric telescopic rod 1106. In the process of passing the truncatum slag in the feeding barrel 1101 into the feeding channel 1102 and passing the truncatum slag in the feeding pipe 1104 into the mixing box 7, the knocking block 1107 moves back and forth left and right under the telescopic action of the first electric telescopic rod 1106, so as to achieve the vibration effect and assist in rapid feeding.

[0033] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, a bracket 1108 is fixed to the other side of the mixing box 7, and a second electric telescopic rod 1109 is fixed to the bottom of the bracket 1108, a moving frame 1110 is fixed to one end of the second electric telescopic rod 1109, the moving frame 1110 passes through one side of the first airtight channel 1111, and a first piston 1112 is slidably connected in the first airtight channel 1111, the first piston 1112 is connected to an inner wall of the first airtight channel 1111 through a second compression spring 1113, the first piston 1112 is initially locked in the first airtight channel 1111, when the second electric telescopic rod 1109 is extended, the moving frame 1110, the first piston 1112 and the first airtight channel 1111 move to the right as a whole, and after unlocking the first piston 1112, the first piston 1112 can be moved to the right alone.

[0034] In this embodiment, Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a support rod 1114 is fixed on the other inner wall of the first airtight channel 1111, and the support rod 1114 passes through the other side of the first airtight channel 1111 and is connected to the first sealing plate 1115. The first sealing plate 1115 passes through one side of the discharge channel 1102. When the first airtight channel 1111 moves to the right together with the first piston 1112, it can drive the support rod 1114 and the first sealing plate 1115 to move to the right as a whole. After the first sealing plate 1115 moves to the right to the bottom, it can seal the discharge channel 1102.

[0035] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a limiting block 1117 is fixed on the top of the first airtight channel 1111, and a limiting rod 1116 passes through the limiting block 1117. The limiting rod 1116 is fixed on one side of the unloading channel 1102. During the left and right movement of the first airtight channel 1111, the limiting block 1117 slides on the limiting rod 1116, thereby playing the role of limiting support.

[0036] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the limit block 1117 is penetrated by a push rod 1118, and an extrusion block 1119 is fixed at one end of the push rod 1118, and a movable block 1120 is wedge-shapedly connected to one side of the extrusion block 1119, and a locking block 1121 is fixed to one side of the movable block 1120, and the locking block 1121 is connected to the top of the first airtight channel 1111 through a tension spring 1122, and a slot 1123 is provided on the top of the first piston 1112, and the locking block 1121 penetrates the first airtight channel 1111. The top of the channel 1111 is snap-connected in the slot 1123. When the support rod 1114 and the first sealing plate 1115 move to the right to the bottom together with the first airtight channel 1111, the push rod 1118 is squeezed by the outer wall of the unloading channel 1102, and the squeezing block 1119 squeezes the movable block 1120. The locking block 1121 moves up together with the movable block 1120 and leaves the slot 1123, which facilitates unlocking the first piston 1112. After that, the first piston 1112 can move to the right alone.

[0037] In this embodiment, Figure 1 , Figure 3 and Figure 4 As shown, a second airtight channel 1125 is fixed on one side of the feed pipe 1104, and the second airtight channel 1125 is connected to the first airtight channel 1111 through a connecting hose 1124, a second piston 1126 is slidably connected in the second airtight channel 1125, and a second sealing plate 1127 is fixed on one side of the second piston 1126, and the second sealing plate 1127 extends into the feed pipe 1104. When the first piston 1112 moves right in the first airtight channel 1111, the second piston 1126 can move left under the action of pneumatic force, thereby driving the second sealing plate 1127 to move left, and the feed pipe 1104 can be opened while the discharge channel 1102 is sealed by the first sealing plate 1115.

[0038] According to another aspect of the present invention, there is provided a method for preparing a Chinese herbal medicine feed additive for promoting the growth of meat rabbits, comprising the following steps:

[0039] S1, feed additives are passed into the mixing box 7, the mixing box 7 sinks, the guide plate 1103 and the feeding pipe 1104 move downward, and then the crushed tunghua medicine residue is passed into the feeding barrel 1101, the tunghua medicine residue enters the feeding channel 1102 and the feeding pipe 1104, and the second sealing plate 1127 blocks the tunghua medicine residue;

[0040] S2, the moving frame 1110, the first airtight passage 1111, the first piston 1112, the support rod 1114 and the first sealing plate 1115 move right as a whole to seal the material discharge passage 1102, the outer wall of the material discharge passage 1102 squeezes the push rod 1118, the squeezing block 1119 squeezes the movable block 1120, and the locking block 1121 moves up together with the movable block 1120 and unlocks the first piston 1112;

[0041] S3, the first piston 1112 continues to move right, and the second piston 1126 and the second sealing plate 1127 move left, thereby opening the feed pipe 1104, so that a certain amount of tunghua residue can be passed into the mixing box 7, and finally the tunghua residue and the feed additive are fully mixed together by the electric stirrer 8, and the electric valve in the discharge pipe 10 can be opened to discharge the mixed Chinese herbal feed additive.

[0042] The working principle of the device is as follows: first, the feed additive is passed into the mixing box 7, and the mixing box 7, the supporting plate 4, the guide plate 1103 and the feeding pipe 1104 are moved downward as a whole, and then the crushed golden lotus residue is passed into the feeding barrel 1101, and part of the golden lotus residue will enter and accumulate in the feeding channel 1102 and the feeding pipe 1104, and the second sealing plate 1127 plays a blocking role for the golden lotus residue, and then the second electric telescopic rod 1109 is extended, and the movable frame 1110, the first airtight channel 1111, the first piston 1112, the support rod 1114 and the first sealing plate 1115 are moved to the right as a whole, so as to seal the feeding channel 1102, and the push rod 1118 is squeezed by the outer wall of the feeding channel 1102, and the squeezing block 1119 squeezes the movable block 1120, and the locking block 1121 moves up with the movable block 1120 and leaves the card slot 1123, so as to release the Lock the first piston 1112, and then the first piston 1112 continues to move right, and the second piston 1126 moves left under the action of pneumatics, and the second sealing plate 1127 moves left and withdraws, so as to pass a certain amount of golden lotus residue into the mixing box 7, and then the electric stirrer 8 is operated to fully mix the golden lotus residue and the feed additive together, and the electric valve in the discharge pipe 10 can discharge the mixed Chinese herbal feed additive. In the process of passing the material into the feed barrel 1101, the corresponding knocking block 1107 moves back and forth left and right to repeatedly knock on the feed barrel 1101, and in the process of opening the second sealing plate 1127 to pass the material into the mixing box 7, the corresponding knocking block 1107 moves back and forth left and right to repeatedly knock on the feed pipe 1104, which is convenient and quick to pass the material, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preparing a Chinese herbal medicine feed additive for promoting the growth of meat rabbits, comprising a base (1), Features: The top of the base (1) is provided with a groove (2), a first compression spring (3) is fixed in the groove (2), a support plate (4) is fixed on the top of the first compression spring (3), a mixing box (7) is fixed on the top of the support plate (4), an electric stirrer (8) is fixed on the top of the mixing box (7), a feed port (9) is fixed on the top of the mixing box (7), a discharge pipe (10) is fixed on the bottom of the mixing box (7), support plates (12) are symmetrically fixed on both sides of the upper end surface of the base (1), a quantitative feeding mechanism (11) is fixed between the tops of the two support plates (12), and the quantitative feeding mechanism (11) comprises a feeding cylinder (1101), and the feeding cylinder (1101) is fixed on the two support plates ( 12) between the top and the bottom of the feed barrel (1101), a feed channel (1102) is fixed at the bottom of the feed barrel (1101), and a guide plate (1103) is slidably connected in the feed channel (1102), a feed pipe (1104) is fixed on the guide plate (1103), and the feed pipe (1104) is fixed to the top of the mixing box (7), one side of the mixing box (7) and one side of the feed pipe (1104) are both fixed with a support frame (1105), and a first electric telescopic rod (1106) is fixed on the inner wall of the support frame (1105), a knocking block (1107) is fixed at one end of the first electric telescopic rod (1106), and a bracket (1108) is fixed on the other side of the mixing box (7), and the bracket (1108) ) is fixed at the bottom of the second electric telescopic rod (1109), a moving frame (1110) is fixed at one end of the second electric telescopic rod (1109), the moving frame (1110) passes through one side of the first airtight channel (1111), and a first piston (1112) is slidably connected in the first airtight channel (1111), the first piston (1112) is connected to an inner wall of the first airtight channel (1111) through a second compression spring (1113), a support rod (1114) is fixed on the other inner wall of the first airtight channel (1111), and the support rod (1114) passes through the other side of the first airtight channel (1111) and is connected to a first sealing plate (1115), the first sealing plate (1115) ) passes through one side of the material discharge channel (1102), a limiting block (1117) is fixed on the top of the first airtight channel (1111), and a limiting rod (1116) passes through the limiting block (1117), the limiting rod (1116) is fixed to one side of the material discharge channel (1102), a push rod (1118) passes through the limiting block (1117), and an extrusion block (1119) is fixed at one end of the push rod (1118), a movable block (1120) is wedge-shapedly connected to one side of the extrusion block (1119), and a locking block (1121) is fixed to one side of the movable block (1120), and the locking block (1121) is connected to the top of the first airtight channel (1111) via a tension spring (1122),A slot (1123) is provided on the top of the first piston (1112), the locking block (1121) passes through the top of the first airtight channel (1111) and is engaged in the slot (1123), a second airtight channel (1125) is fixed on one side of the feed pipe (1104), and the second airtight channel (1125) is connected to the first airtight channel (1111) via a connecting hose (1124), a second piston (1126) is slidably connected in the second airtight channel (1125), and a second sealing plate (1127) is fixed on one side of the second piston (1126), and the second sealing plate (1127) extends into the feed pipe (1104).

2. The preparation device of a Chinese herbal medicine feed additive for promoting the growth of meat rabbits according to claim 1, Features: A limiting column (5) is fixed at the bottom of the support plate (4), a limiting groove (6) is provided at the top of the base (1), and the limiting column (5) is slidably connected in the limiting groove (6).

3. A method for preparing a Chinese herbal medicine feed additive for promoting the growth of meat rabbits, applied to the preparation device of a Chinese herbal medicine feed additive for promoting the growth of meat rabbits as claimed in any one of claims 1 to 2, It is characterized in that The following steps are involved: S1, the feed additive is passed into the mixing box (7), the mixing box (7) sinks, the guide plate (1103) and the feeding pipe (1104) move downward, and then the crushed tunghua medicine residue is passed into the feeding tube (1101), the tunghua medicine residue enters the feeding channel (1102) and the feeding pipe (1104), and the second sealing plate (1127) blocks the tunghua medicine residue; S2, the movable frame (1110), the first airtight passage (1111), the first piston (1112), the support rod (1114) and the first sealing plate (1115) are integrally moved to the right to seal the material discharge passage (1102), the outer wall of the material discharge passage (1102) presses the support rod (1118), the pressing block (1119) presses the movable block (1120), and the locking block (1121) moves upward together with the movable block (1120) and unlocks the first piston (1112); S3, the first piston (1112) continues to move right, and the second piston (1126) and the second sealing plate (1127) move left, thereby opening the feed pipe (1104), thereby allowing a certain amount of golden lotus residue to pass into the mixing box (7), and finally using the electric stirrer (8) to fully mix the golden lotus residue and the feed additive together, and opening the electric valve in the discharge pipe (10) to discharge the mixed Chinese herbal feed additive.

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