CN115005114B - Multistage feeding system and method for different growth stages of pigs - Google Patents

Abstract

The invention discloses a multistage feeding system and a multistage feeding method for different growth stages of pigs. The system includes a support assembly, a plurality of feeding assemblies, an induction assembly, and a plurality of stirring assemblies. The feeding method comprises a preparation stage, a judging stage, a mixing stage and a feeding stage. In the judging stage, the weight information of the live pigs is acquired through the sensing module, the live pigs are judged to be in a certain growing stage, the sensing module controls the corresponding quantitative structure to start according to the acquired information, and the required nutrient substances of the live pigs in different growing stages can be adjusted according to the live pigs in different growing stages, so that the breeding cost is effectively saved. In the mixing stage, the feed enters the fermentation structure for heating fermentation, and the fermented feed is conveyed to the corresponding stirring assembly, so that the feed is finer, and the palatability of the feed is improved.

Description

Multistage feeding system and method for different growth stages of pigs

Technical Field

The invention relates to a feeding control technology, in particular to a multi-stage feeding system and a multi-stage feeding method for pigs in different growth stages.

Background

China is a large pig-raising country, and with the rapid development of the breeding industry, the breeding scale is continuously increased, and the requirements of pigs on nutrition are increasingly high. In modern breeding, the feed is the only nutrition source of pigs, and the feed additive is used in the feed in a small amount but has remarkable effect. The feed additive used at present is prepared from a plurality of raw materials in proportion, and the production of the feed additive is generally carried out by adopting modes of mixing, stirring, fermenting and the like. In the feed additive production system proposed in patent number CN202121444051.5, when the additive raw materials proposed in the document are mixed, the mixing is often uneven, grading is easy to occur, and the problems of low use efficiency and the like are solved well in the prior art.

Reference is made to, for example, pig feed to nutrient ratio relationship, which mentions that the nutrients required by live pigs at different stages of growth are different, which results in different feed ratios. The existing proportioning device is a weighing device for proportioning feed additives, such as patent number CN201921969915.8, and the document only solves the problem that the feed cannot be accurately proportioned, and can not automatically proportion the feed according to different growth stages of live pigs. In view of this, the present invention proposes a multi-stage feeding system and method for different growth stages of pigs.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a multi-stage feeding system and a multi-stage feeding method for different growth stages of pigs, which have the advantages of simple structure and convenient operation, and can be used for preparing feed proportions according to different growth stages of live pigs.

The technical scheme of the invention is realized as follows:

a multistage feeding system for use in different stages of growth of pigs, comprising:

the support assembly comprises a bottom plate and a mounting frame, and the bottom plate is connected with the mounting frame;

the feeding assembly mainly comprises a material conveying structure, a fermentation structure and a quantitative structure, the fermentation structure is connected with the mounting frame, the material conveying structure is positioned above the fermentation structure, the quantitative structure is positioned between the material conveying structure and the fermentation structure, and the material conveying structure is communicated with the fermentation structure through the quantitative structure;

the induction component is provided with an induction module which is connected to the bottom plate;

the stirring assembly comprises two supporting legs, a stirring barrel is connected between the two supporting legs, a driving piece is connected to one supporting leg, a driving piece output shaft is connected with a rotating piece, the rotating piece is connected inside the stirring barrel, the feeding assembly is communicated with the stirring assembly through a connecting assembly, and the sensing module controls the quantitative structure to operate.

In the multistage feeding system for pigs in different growth stages, the feeding structure mainly comprises a material pipe, a material port and a travel switch, wherein the material pipe is fixed with the material port, and the travel switch is positioned on two sides of the material pipe.

In the multistage feeding system for different growth stages of pigs, the fermentation structure mainly comprises a connecting pipe, an arc-shaped heating plate and a liquid injection port, wherein the connecting pipe is communicated with the material pipe, the arc-shaped heating plate is fixed inside the connecting pipe, and the liquid injection port is fixed with the connecting pipe.

In the multistage feeding system for pigs in different growth stages, the quantitative structure mainly comprises an air cylinder, a baffle plate, a rack and a gear, wherein the air cylinder is fixed on a material pipe, the baffle plate is positioned between the material pipe and a connecting pipe, the rack is fixed on an output shaft of the air cylinder, the gear is fixed with the baffle plate, and the rack and the gear are always in a meshed state.

In the multistage feeding system for pigs in different growth stages, the connecting component comprises a mixing frame, a connecting plate is fixedly connected above the mixing frame, and a plurality of flange pipes are arranged on the connecting plate, and the number of the flange pipes corresponds to that of the feeding component.

In the multistage feeding system for pigs of the invention, the mixing frame is internally connected with inclined plates which are inclined from the middle to the two sides.

In the multi-stage feeding system for pigs in different growth stages of the invention, the multi-stage feeding system further comprises a plurality of opening and closing assemblies, and the opening and closing assemblies are connected to the bottom of the stirring barrel.

In the multistage feeding system for different growth stages of pigs, the opening and closing assembly comprises a fixed valve, the fixed valve is connected to the lower port of the bottom of the stirring cylinder, a butterfly valve is connected to the fixed valve, one end of the butterfly valve is connected with a rotating shaft, and one rotating end of the butterfly valve is fixed with a fluted disc and a connecting disc, wherein the connecting disc is of a hollow structure.

In the multistage feeding system for pigs in different growth stages, the opening and closing assembly further comprises a handle, the handle is rotationally connected with the connecting disc, a grip is connected to the handle, a return spring is connected between the grip and the handle, and a lug on the grip is meshed with the fluted disc when the grip is pressed.

A multi-stage feeding method for different growth stages of pigs comprising the steps of:

step 1: in the preparation stage, the preparation method comprises the following steps,

step 1.1: according to different growth stages of live pigs, preparing feeds with different component ratios;

step 1.2: respectively adding the prepared feeds into corresponding feeding components;

step 2: in the judging stage, the step of judging the position of the object,

step 2.1: collecting weight information of the live pigs through the sensing module, and judging that the live pigs are in a certain growth stage;

step 2.2: the sensing module controls the corresponding quantitative structure to start according to the acquired information;

step 3: in the mixing stage, the mixing materials are mixed,

step 3.1: after the quantitative structure is started, the feed enters the fermentation structure for heating fermentation;

step 3.2: conveying the fermented feed to a corresponding stirring assembly through a connecting assembly;

step 3.3: starting a motor to uniformly mix and stir the feed in the stirring assembly;

step 4: in the feeding stage, the feeding device comprises a feeding stage,

step 4.1: the evenly stirred feed is cooled to normal temperature;

step 4.2: pulling the opening and closing component to feed the feed to the live pigs in the corresponding stage.

In the multistage feeding method for different growth stages of pigs, the step 1.1 specifically comprises the following steps:

10 kg-30 kg of live pig feed comprises 40% of corn flour, 5% of wheat bran, 16% of rice bran, 24% of bean pulp and 5% of mixture;

the main components of 30 kg-60 kg live pig feed comprise 55% of corn meal, 10% of grass meal, 10% of wheat bran, 16% of rice bran, 24% of bean pulp and 5% of mixture;

60 kg-90 kg of live pig feed comprises the main components of 38% of corn meal, 30% of grass meal, 10% of rice bran, 17% of bean pulp and 5% of mixture;

the main components of the pig feed with the weight ratio of more than 90kg are 30% of corn meal, 37% of grass meal, 18% of rice bran, 10% of bean pulp and 5% of mixture.

In the multistage feeding method for different growth stages of pigs, the mixture is prepared by mixing salt, calcium-phosphorus feed and trace element feed containing potassium, iron, zinc and the like.

The multistage feeding system and the multistage feeding method for different growth stages of pigs have the following beneficial effects: the multistage feeding method for pigs in different growth stages can adjust the needed nutrient substances according to the pigs in different growth stages, and effectively saves the cultivation cost.

According to the multistage feeding system for the different growth stages of the pigs, the prepared different feeds are correspondingly fed to the live pigs in the different growth stages through the cooperation of the sensing assembly and the quantitative structure. The multistage feeding system is further provided with the fermentation structure and the stirring assembly, so that the feed is finer, the palatability of the feed is improved, and the cultivation cost is saved.

Drawings

FIG. 1 is a block flow diagram of a multi-stage feeding process of the present invention;

FIG. 2 is a diagram of a pig feed formulation for each growth stage in a multi-stage feeding process of the present invention;

FIG. 3 is a schematic diagram of a multi-stage feeding system of the present invention;

FIG. 4 is a schematic view of the structure of the feeding assembly of the present invention;

FIG. 5 is a partial cross-sectional view of a feeding assembly of the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5, mainly showing the quantitative structure;

FIG. 7 is a schematic diagram of the mating structure of the connection assembly and the stirring assembly of the present invention;

FIG. 8 is a partial cross-sectional view of the connection assembly of the present invention;

FIG. 9 is a partial cross-sectional view of a stirring assembly of the present invention;

FIG. 10 is a schematic view of the structure of the opening and closing assembly of the present invention;

the reference numerals are expressed as: 1-support assembly, 11-floor, 12-mounting rack, 2-feeding assembly, 10-feeding structure, 101-pressure valve, 102-feed tube, 103-feed port, 104-round table tube, 105-travel switch, 106-fixed tube, 20-fermentation structure, 201-upper tube, 202-connecting tube, 203-fixed ring, 204-lower tube, 205-first fixed plate, 206-connecting block, 207-arcuate heating plate, 208-filling port, 30-dosing structure, 301-second fixed plate, 302-cylinder, 303-air valve, 304-arcuate rack, 305-baffle, 306-rack, 307-gear, 31-induction module, 32-first guardrail, 33-second guardrail, 34-third guardrail, 4-connecting assembly, 41-mixing frame, 42-connecting plate, 43-inclined plate, 5-stirring assembly, 51-support leg, 52-stirring drum, 53-motor, 54-impeller, 6-opening assembly, 61-fixed valve, 62-rotating shaft, 63-rotating shaft, 64-connecting disc, 65-handle, 66-toothed disc, 68-reset spring grip, 68-reset spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in figure 2, the main components of the feed of the invention are corn flour, grass meal, wheat bran, rice bran, soybean meal and mixture. Wherein the mixture is prepared by mixing salt, calcium-phosphorus feed and feed containing microelements such as potassium, iron and zinc. Since the nutrition required by pigs at different growth stages is different, this results in different feed ratios as follows:

the main components of the feed for the suckling piglets (10 kg-30 kg) comprise 40% of corn flour, 5% of wheat bran, 16% of rice bran, 24% of soybean meal and 5% of mixture. The piglet in lactation period has rapid growth and development and vigorous metabolism, but the development of digestive organs is imperfect and the digestive function is poor, and according to the characteristics, the piglet can be matched with the feed with high nutritive value, easy digestion and absorption and good palatability when being matched with the feed, so that the digestive tract of the piglet can gradually adapt to the feed.

The main components of the feed for the nursery pigs (30 kg-60 kg) comprise 55% of corn meal, 10% of grass meal, 10% of wheat bran, 16% of rice bran, 24% of bean pulp and 5% of mixture. The nursery pigs need protein to increase the weight of the piglets, and the carbohydrate provides energy for the activities of the piglets, and minerals, trace elements and vitamins are used for enhancing the metabolic capacity of the organism.

The main components of the fodder for fattening pigs (60 kg-90 kg) comprise 38% of corn meal, 30% of grass meal, 10% of rice bran, 17% of bean pulp and 5% of mixture. The fattening pigs are links for determining economic benefits in pig raising production, and the raising cost in the period accounts for more than half of the total cost. The period is the stage with the highest growth speed of the live pigs, the utilization efficiency of the feed is high, and the required nutrient substances are more.

The main components of the feed for the slaughtered pigs (90 kg and above) comprise 30% of corn meal, 37% of grass meal, 18% of rice bran, 10% of bean pulp and 5% of mixture. The pig feeding at this stage can not cause overnutrition, and the feed is controlled to enable free feeding, increase activity and strengthen physique, and the grass feed is mainly used for controlling economic cost.

As shown in fig. 1, the multi-stage feeding method for different growth stages of pigs according to the present invention comprises the steps of:

step 1: in the preparation stage, the preparation method comprises the following steps,

step 1.1: according to different growth stages of live pigs, preparing feeds with different component ratios;

step 1.2: respectively adding the prepared feeds into corresponding feeding components;

step 2: in the judging stage, the step of judging the position of the object,

step 2.1: collecting weight information of the live pigs through the sensing module, and judging that the live pigs are in a certain growth stage;

step 2.2: the sensing module controls the corresponding quantitative structure to start according to the acquired information;

step 3: in the mixing stage, the mixing materials are mixed,

step 3.1: after the quantitative structure is started, the feed enters the fermentation structure for heating fermentation;

step 3.2: conveying the fermented feed to a corresponding stirring assembly through a connecting assembly;

step 3.3: starting a motor to uniformly mix and stir the feed in the stirring assembly;

step 4: in the feeding stage, the feeding device comprises a feeding stage,

step 4.1: the evenly stirred feed is cooled to normal temperature;

step 4.2: pulling the opening and closing component to feed the feed to the live pigs in the corresponding stage.

As shown in fig. 3 to 10, the feed additive production system of the present invention includes a support assembly 1, a feeding assembly 2, a sensing assembly, a connection assembly 4, a stirring assembly 5, and an opening and closing assembly 6. The support frame 1 includes bottom plate 11 and mounting bracket 12, and bottom plate 11 and mounting bracket 12 fixed connection. The feeding component 2 is connected to the mounting frame 12, and the feeding component 2 mainly comprises a material conveying structure 10, a fermentation structure 20 and a quantitative structure 30. The fermentation structure 20 is fixedly connected with the mounting frame 12, the material conveying structure 10 is positioned above the fermentation structure 20, the quantitative structure 30 is positioned between the material conveying structure 10 and the fermentation structure 20, and the material conveying structure 10 is communicated with the fermentation structure 20 through the quantitative structure 30. Wherein, the feeding components 20 are four, which respectively correspond to the four live pigs in different growth stages.

The material conveying structure 10 mainly comprises a pressure valve 101, a material pipe 102, a material port 103, a round platform pipe 104, a travel switch 105 and a fixed pipe 106. The pressure valve 101 is located at the top of the material pipe 102, a material port 103 is arranged on the material pipe 102, the round platform pipe 104 is communicated with the material pipe 102, and the travel switch 105 is located on the round platform pipe 104. The fixed tube 106 is fixedly connected with the circular truncated cone tube 104, and the fixed tube 106 is connected with the mounting frame 12 through bolts. The feed port 103 is connected with an external feed delivery device, and when feed enters the feed pipe 102 from the feed port 103, the feed naturally falls under the action of the cambered surface of the circular truncated cone 104. Wherein the pressure valve 101 is used to monitor the pressure inside the feed structure 10.

The fermentation structure 20 mainly comprises an upper end pipe 201, a connecting pipe 202, a fixing ring 203, a lower end pipe 204, a first fixing plate 205, a connecting block 206, an arc-shaped heating plate 207 and a liquid injection port 208. The upper tube 201 is in fixed communication with the fixed tube 106 and the connecting tube 202 is in communication with the upper tube 201. The fixing ring 203 is fixed at the flange joint of the connecting pipe 202 and the upper pipe 201, and plays a certain role in sealing. The lower end pipe 204 is fixedly connected with the connecting pipe 202, and the first fixing plate 205 is fixedly connected with the connecting pipe 202 via the connecting block 206. The first fixing plate 205 is connected with the mounting frame 12 through bolts, and plays a supporting role on the fermentation structure 20. Three arc-shaped heating plates 207 are arranged in the connecting pipe 202, and a liquid injection port 208 is connected to the lower pipe 204.

The dosing structure 30 mainly comprises a second fixing plate 301, a cylinder 302, a gas valve 303, an arc-shaped frame 304, a baffle 305, a rack 306 and a gear 307. The second fixing plates 301 are fixedly connected to the round platform pipe 104, the air cylinders 302 are arranged between the second fixing plates 301, the air cylinders 302 are provided with air valves 303, and the arc-shaped frames 304 are connected with the fixing pipes 106. The baffle 305 is rotatably connected to the arc-shaped frame 304, and the baffle 305 is matched with the lower port of the circular truncated cone 104. In the initial state of the figure, the baffle 305 seals the lower port of the circular truncated cone 104. The rack 306 is fixed on the output shaft of the cylinder 302, and the gear 307 is fixedly connected with the baffle 305. Wherein the rack 306 and the gear 307 are always in an engaged state.

When the travel switch 105 controls the cylinder 302 to shrink, feed enters the round platform pipe 104 from the feed port 103, and the rack 306 drives the baffle 305 to rotate through the gear 307. After the baffle 305 is separated from the circular truncated cone 104, the feed enters the fermenting structure 20 and the fermenting agent is added through the liquid injection port 208. The arc-shaped heating plate 207 heats the feed, and the temperature is controlled to be about 45 ℃. The palatability of the feed is improved through microbial fermentation, and the nutrient substances in the feed can be improved after fermentation, so that secondary digestion of live pigs is promoted. The feeding cost can also be reduced, the energy feed fermented by the fermenting agent is converted into the mycoprotein feed, and the consumption of the protein feed can be reduced by about 50%, so that the total feeding cost is greatly reduced.

As shown in fig. 1, the sensing assembly includes a sensing module 31, a first fence 32, a second fence 33, and a third fence 34. The sensing module 31 is fixedly connected to the bottom plate 11, the first guardrails 32 are located on two sides of the sensing module 31, and the first guardrails 32 are fixedly connected with the bottom plate 11. The second guard rail 33 is rotatably connected to the first guard rail 32 on one side, and the third guard rail 34 is fixedly connected to the mounting frame 12. When the step 2 is implemented, the live pigs are driven onto the sensing assembly, the sensing module 31 collects the weight information of the live pigs, the growth stage of the live pigs can be judged according to the collected weight information, and then the corresponding quantitative structure is controlled to start, and the operation is repeated.

In the prior art, the fermented feed is required to be uniformly stirred, and if the feed cannot be uniformly mixed, the balanced supply of nutrition cannot be ensured, so that on one hand, the pigs produce malnutrition and deficiency symptoms, and on the other hand, the pigs also have poisoning phenomenon. Even if the feed formula is scientific, the feeding environment is excellent, and good feeding effect cannot be obtained. As shown in fig. 7 to 9, the connection assembly 4 includes a mixing frame 41, and a connection plate 42 is fixedly connected above the mixing frame 41. The connecting plate 42 is provided with a plurality of flange pipes, the number of which corresponds to that of the feeding modules 2, and is connected with the feeding modules 2. Wherein, the mixing frame 41 is fixedly connected with an inclined plate 43, and the inclined plate 43 is inclined from the middle to two sides. This structure can ensure that the feed can naturally slide down.

The number of the stirring assemblies 5 corresponds to that of the feeding assemblies 2, the stirring assemblies 5 comprise two supporting legs 51, and stirring drums 52 are fixedly connected between the two supporting legs 51. Wherein, a motor 53 is connected to one side of the supporting leg 51, an impeller 54 is fixedly connected to an output shaft of the motor 53, and the impeller 54 is rotatably connected to the inside of the stirring barrel 52. The upper end of the agitating cylinder 52 has a connection port through which it communicates with the connection assembly 4.

When the fermented feed enters the stirring assembly 5 from the feeding assembly 2 through the connecting assembly 4, the motor 53 is started, and the motor 53 drives the impeller 54 to rotate. Impeller 54 stirs the feed and mixes evenly, after the feed stirs and mixes evenly, turns off motor 53. And the stirring time of each batch of feed is 15-20 minutes, and too much or too little time is unfavorable for uniform stirring. In addition, the stirring time is also an important factor in terms of mixing uniformity. Too short a time, uniformity is certainly not guaranteed, and too long a time can cause layering phenomenon of the feed due to excessive mixing, so that the purpose is not achieved.

As shown in fig. 10, the opening and closing assembly 6 is located at the lower port of the mixing drum 52. The opening and closing assembly 6 comprises a fixed valve 61, a butterfly valve 62, a rotating shaft 63, a connecting disc 64, a fluted disc 65, a handle 66, a grip 67 and a return spring 68. The fixed valve 61 is fixed at the lower port of the stirring cylinder 402, the butterfly valve 62 is rotatably connected to the fixed valve 61, and the rotating shaft 63 is fixedly connected to the butterfly valve 62. The fluted disc 65 is fixedly connected to the rotating shaft 63 through the connecting disc 64, the handle 66 is rotatably connected with the connecting disc 64, and the grip 67 is rotatably connected to the handle 66 through the return spring 68. Wherein the lugs on the grip 67 engage the toothed disc 65. After the motor 53 is turned off, after the fodder is cooled to normal temperature, the breeder manually presses the grip 67, so that after the lugs on the grip 67 are meshed with the fluted disc 65, the handle 66 is rotated to drive the butterfly valve 62 to be opened, and the fodder is taken out. The main purpose of the opening and closing assembly 6 is to prevent the butterfly valve from being opened by mistake during the stirring and mixing process of the feed.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (6)

1. A multistage feeding system for use in different stages of growth of pigs, comprising:

the support assembly comprises a bottom plate and a mounting frame, and the bottom plate is connected with the mounting frame;

the feeding components mainly comprise a material conveying structure, a fermentation structure and a quantitative structure, the fermentation structure is connected with the mounting frame, the material conveying structure is positioned above the fermentation structure, the quantitative structure is positioned between the material conveying structure and the fermentation structure, the material conveying structure is communicated with the fermentation structure through the quantitative structure, feeds with different component ratios are prepared according to different growth stages of live pigs, and the prepared feeds are respectively added into the corresponding feeding components;

the induction component is provided with an induction module which is connected to the bottom plate;

the stirring assembly comprises two supporting legs, a stirring cylinder is connected between the two supporting legs, wherein a driving piece is connected to one supporting leg, a rotating piece is connected to an output shaft of the driving piece and connected to the inside of the stirring cylinder, the feeding assembly is communicated with the stirring assembly through a connecting assembly, the sensing module controls the quantitative structure to operate,

the induction module collects weight information of the live pigs, judges that the live pigs are in a certain growth stage, and controls the corresponding quantitative structure to start according to the collected information;

after the quantitative structure is started, the feed enters the fermentation structure to be heated and fermented, the fermented feed is conveyed to the corresponding stirring assembly through the connecting assembly, and the feed in the stirring assembly is uniformly mixed and stirred;

and cooling the uniformly stirred feed to normal temperature, pulling the opening and closing assembly, and feeding the feed to the live pigs in the corresponding stage.

2. The multi-stage feeding system as set forth in claim 1, wherein the feed structure is comprised of a tube, a mouth and a travel switch, the tube is fixed to the mouth, the travel switch is located on both sides of the tube, the fermentation structure is comprised of a connecting tube, an arc-shaped heating plate and a liquid injection port, the connecting tube is communicated with the tube, the arc-shaped heating plate is fixed inside the connecting tube, and the liquid injection port is fixed to the connecting tube.

3. A multistage feeding system according to claim 2, wherein the dosing structure consists essentially of a cylinder, a baffle, a rack and a gear, the cylinder is fixed on the feed pipe, the baffle is located between the feed pipe and the connecting pipe, the rack is fixed on the output shaft of the cylinder, the gear is fixed with the baffle, and the rack and the gear are always in engagement.

4. The multi-stage feeding system of claim 1, further comprising a plurality of opening and closing assemblies, wherein the opening and closing assemblies are connected to the bottom of the stirring drum, the opening and closing assemblies comprise a fixed valve, the fixed valve is connected to the lower port of the bottom of the stirring drum, a butterfly valve is connected to the fixed valve, one end of the butterfly valve is connected to a rotating shaft, one end of the rotating shaft is fixed with a fluted disc and a connecting disc, and the connecting disc is of a hollow structure.

5. The multi-level feeding system of claim 4, wherein the opening and closing assembly further comprises a handle rotatably coupled to the connection pad, a grip is coupled to the handle, a return spring is coupled between the grip and the handle, and a tab on the grip engages the toothed disc when the grip is depressed.

6. The multi-stage feeding system of claim 1, wherein the live pig feed comprises:

10 kg-30 kg of live pig feed comprises 40% of corn flour, 5% of wheat bran, 16% of rice bran, 24% of bean pulp and 5% of mixture;

the main components of 30 kg-60 kg live pig feed comprise 55% of corn meal, 10% of grass meal, 10% of wheat bran, 16% of rice bran, 24% of bean pulp and 5% of mixture;

60 kg-90 kg of live pig feed comprises the main components of 38% of corn meal, 30% of grass meal, 10% of rice bran, 17% of bean pulp and 5% of mixture;

the main components of the pig feed with the weight ratio of more than 90kg are 30% of corn meal, 37% of grass meal, 18% of rice bran, 10% of bean pulp and 5% of mixture.