CN114667966B - Method for breeding black pigs by utilizing excellent germplasm resources - Google Patents

Method for breeding black pigs by utilizing excellent germplasm resources Download PDF

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Publication number
CN114667966B
CN114667966B CN202210173507.1A CN202210173507A CN114667966B CN 114667966 B CN114667966 B CN 114667966B CN 202210173507 A CN202210173507 A CN 202210173507A CN 114667966 B CN114667966 B CN 114667966B
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breeding
pigs
feed
traction rope
assembly
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CN114667966A (en
Inventor
李兆华
钱芙蓉
张志彬
李娜
于永生
刘庆雨
高一
张琪
马永强
姜中国
黄艳丽
王永贵
刘向华
王玉珍
刘丽敏
高敬昕
田淑玲
李峰
梅淑芝
陈丽慧
于海欣
赵立忠
魏启立
王建超
张煜宁
苑广青
陈丽艳
邵梅
赵喆
张柏松
宫哲
刘德智
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Jilin Academy of Agricultural Sciences
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Jilin Academy of Agricultural Sciences
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
    • A01K67/02Breeding vertebrates
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/001Fodder distributors with mixer or shredder
    • A01K5/004Fodder distributors with mixer or shredder with mixing or shredding element rotating on vertical axis
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/02Automatic devices

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Birds (AREA)
  • Animal Behavior & Ethology (AREA)
  • Zoology (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)

Abstract

The invention provides a method for breeding black pigs by utilizing excellent germplasm resources, which relates to the field of breeding of high-quality black pigs and comprises the following breeding steps: the breeding method comprises the following steps of pig purification and rejuvenation, cross-crossing and fixing of hybrid offspring, core group breeding and expanding, breeding of new Jilin black pigs by taking Bake Xia boars as male parents and east-north-civil-pig sows as female parents, namely, two-variety hybridization of the Bake Xia boars and the east-north-civil-pig sows, and optimization of the quality of the new Jilin black pigs through the quality of the rejuvenated Bake Xia boars and the east-north-civil-pig sows in the breeding process and by combining breeding modes of cross-crossing and fixing of the hybrid offspring, core group breeding and expanding and the like.

Description

Method for breeding black pigs by using excellent germplasm resources
Technical Field
The invention relates to the field of high-quality black pig breeding, in particular to a method for breeding black pigs by utilizing excellent germplasm resources.
Background
The northeast boar is a northeast boar, has the advantages of solid meat quality, uniform marble grain distribution, bright red meat color, fine and juicy mouthfeel and good color, flavor and taste, not only has high farrowing quantity, strong disease resistance and animal feed resistance, but also has the advantages which are not possessed by other boar varieties, such as good meat quality, strong cold resistance and excellent reproductive performance as a germplasm resource.
The baccharis pig is one of the world famous pig breeds, the origin is uk baccharis, and the characteristics are as follows: the pig feed has the characteristics of short head, long and wide body trunk, short and concave nose, upright or slightly forward-inclined ears, deep chest, wide hip, black fur, and 'six white' (the lower parts of four limbs, the nose end and the tail broom are white), has strong applicability to the living environment, and is quick in growth and easy to fatten, belongs to a lean type pig variety, is widely hybridized and utilized in domestic pig raising production, and plays a certain role in promoting the improvement of the pig variety.
The Jilin black pigs are original excellent local varieties in China, are local fine varieties formed by hybridizing Bake summer pigs and northeast civil pigs for a long time through natural and artificial selection, and new varieties are continuously introduced along with the passage of time, so that pure Jilin black pigs are continuously reduced, and are dispersedly bred in farmers in remote towns and are already in an endangered extinction state.
Therefore, based on the statement, the method for breeding the new Jilin black pig by hybridizing the northeast China civil pig and the Bake summer pig is needed, and the new Jilin black pig breed with strong adaptability, high reproductive capacity, high growth speed and unique meat quality and flavor is obtained.
Disclosure of Invention
The invention aims to provide a method for breeding black pigs by utilizing excellent germplasm resources, so as to solve the technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for breeding black pigs by using excellent germplasm resources comprises the following breeding steps: breeding pig purification and rejuvenation, cross-crossing and fixing of hybrid offspring, and core group breeding and propagation;
wherein,
the boars include Baker pigs and northeast boars;
the cross-crossing fixation of the hybrid offspring comprises breeding of hybrid offspring of northeast folk pigs and Barkha pigs and cross-crossing fixation among the hybrid offspring.
Preferably, the Bakha pig in the breeding pigs is used as a male parent, and the northeast civil pig is used as a female parent.
Preferably, the breeding step further comprises the step of testing the meat quality of the new Jilin black pigs by using molecular biology technology.
Preferably, the purification and rejuvenation of the breeding pigs comprise grazing and raising the black pigs by adopting a black pig breeding device.
The utility model provides an utilize good germplasm resources to cultivate device of black pig, include the fodder barrel and encircle to arrange at a plurality of feeding boards of fodder barrel outlying, a plurality of feeding boards are for holding the plate body of fodder, a plurality of feeding boards rotate and install in fodder barrel department, arrange lifting unit in the fodder barrel, lifting unit is including installing the mounting bracket of fodder barrel upper end mouth department and to the lift post of slidable mounting in the mounting bracket, lift post department disposes a plurality of haulage ropes with a plurality of feeding board quantity are equitable, the both ends of a plurality of haulage ropes are connected with lift post and feeding board respectively, be arranged in the lift post than the mounting bracket rises or descends, make a plurality of feeding boards expand or shrink for the fodder barrel.
Preferably, the feed bucket comprises a bucket body, the bucket body is a cylindrical bucket body filled with feed, distribution hoses which correspond to the feeding plates one by one are arranged at the bucket body, and the distribution hoses are connected with the feeding plates.
Preferably, the mounting bracket includes spacing dish and with a plurality of haulage rope quantity peer haulage rope track boards, the central point that spacing dish is in port on the bucket body puts, and spacing dish and lift post sliding fit, haulage rope track board is located between fodder bucket and the spacing dish, and the both ends of haulage rope track board respectively with fodder bucket and spacing dish fixed connection.
Preferably, the lifting column comprises a column body in sliding fit with the limiting disc, a plurality of inwards-concave traction rope grooves are formed in the side wall of the column body, the number of the inwards-concave traction rope grooves is the same as that of traction ropes, and the inwards-concave traction rope grooves are used for enabling the traction ropes to be retracted into the inwards-concave traction rope grooves when the column body ascends or descends;
the balancing weight is installed to the one end that the post body is located the fodder bucket.
Preferably, the position of the track plate of the traction rope is provided with a limiting rope groove, a stirring component is arranged below the limiting rope groove, and the stirring component is in rolling contact with the traction rope, so that the stirring component can move up and down in the feed bucket.
Preferably, the stirring assembly comprises an assembly shell arranged at the bottom of the traction rope track plate, a rope contact wheel set is arranged in the assembly shell, the rope contact wheel set is a wheel body exposed outwards relative to the assembly shell, and the wheel body exposed outwards penetrates through the traction rope track plate to a position of the limiting rope groove to be in rolling contact with the traction rope;
a transfer gear in rolling contact with the rope contact wheel set is arranged in the assembly shell, and a lifting rod is eccentrically fixed at the end part of the transfer gear;
the stand pipe is installed to assembly casing bottom, and sliding fit has the stirring piece in the stand pipe, and the stirring piece is for carrying out the member that stirs to fodder in the fodder barrel, and in the more stand pipe of stirring piece one end extended to the assembly casing, the one end that the stirring piece extended to in the assembly casing was installed and is taken power spare with the sliding adaptation of ram for make the stirring piece reciprocate from top to bottom than the stand pipe in the transfer rotation.
The invention has the beneficial effects that:
the method takes the Baker Xia boar as a male parent and takes the northeast folk pig sow as a female parent, namely the Baker Xia boar and the northeast folk pig sow are hybridized for two varieties to cultivate the new Jilin black pig, and in the cultivation process, the quality of the new Jilin black pig is optimized by rejuvenating the quality of the Baker Xia boar and the northeast folk pig sow and combining the cultivation modes of cross-breeding and breeding of hybrid offspring, core group selection and propagation and the like.
Drawings
FIG. 1 is a schematic diagram of a method for breeding black pigs by using excellent germplasm resources according to the invention;
FIG. 2 is a schematic structural diagram of an apparatus for breeding black pigs using elite germplasm resources according to the present invention;
FIG. 3 is a schematic view of the present invention in an expanded configuration;
fig. 4 is a schematic view of the combined structure of the feed bucket and the lifting assembly of the present invention;
FIG. 5 is a schematic cross-sectional view of the stirring assembly of the present invention;
FIG. 6 is a schematic view of a subdivided construction of a lifting column according to the present invention;
reference numerals: 1. a feeding plate; 2. a feed bucket; 3. a hauling rope; 4. a lifting assembly; 5. a stirring assembly; 21. a material distributing hose; 22. a barrel body; 41. a lifting column; 42. a limiting disc; 43. a hauling rope track plate; 411. a balancing weight; 412. a traction rope groove; 413. a post body; 51. assembling the shell; 52. a rope touching wheel set; 53. a driving wheel is divided; 54. selecting a deflector rod; 55. a power take-off; 56. and (4) a stirring piece.
Detailed Description
The present invention will be further described with reference to the following detailed description and the accompanying drawings, which are provided for the purpose of illustrating the invention and are not intended to limit the invention to the particular embodiments disclosed. Other embodiments obtained by persons skilled in the art without making creative efforts based on the embodiments in the implementation belong to the protection scope of the invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
Referring to fig. 1, in this embodiment, a method for breeding black pigs using excellent germplasm resources is provided, which includes constructing 100 basic groups of backe charpy pigs of male parents (more than 5 ancestors) and 250 basic groups of northeast charity pigs of female parents (more than 5 ancestors), and determining growth performance such as farrowing rate, survival rate, daily gain, feed-weight ratio, and slaughter performance such as eye muscle area of sows in a core group.
The main selection character of the male parent is determined as the growth fertility character, and the main selection character of the female parent is the reproductive performance.
Excellent individual siblings of the Baker summer pig with intramuscular fat higher than 2.5%, lean meat percentage higher than 60.0%, daily gain higher than 730g and postpartum body weight higher than 90kg for 165 days are selected to form a basic group; the northeast boar selects excellent individual siblings with intramuscular fat content higher than 5.0%, lean meat percentage of about 48%, weight gain speed of about 240 days after delivery of 90kg, litter size of more than 14/litter and weaning survival rate higher than 90% to form a basic group. The individual matching is mainly carried out, excellent individuals with the quality meeting the standard are subjected to the same-quality matching, and the birth time, the feeding conditions and the seed selection standard of each generation are kept consistent in the breeding, namely one generation per year.
The combining ability of the new Jilin black pigs is measured through a hybridization test, the combining ability of the growth and fattening performances of the new Jilin black pigs is measured, a reasonable test design is formulated firstly, the selection of the test pigs, the start and the end of the test, the arrangement of a pre-feeding period, the feeding level, the feeding mode and the weighing record are kept consistent, meanwhile, the representativeness of each group of a test group and a control group is ensured, and the sampling error is reduced.
Example 2
The device for breeding black pigs by utilizing excellent germplasm resources comprises a feed bucket 2 and a plurality of feeding plates 1 arranged around the feed bucket 2, wherein the feeding plates 1 are plate bodies for accommodating feed, the feeding plates 1 are rotatably arranged on the feed bucket 2, a lifting component 4 is arranged in the feed bucket 2, the lifting component 4 comprises a mounting rack arranged at the upper port of the feed bucket 2 and a lifting column 41 arranged in the mounting rack in a sliding manner, a plurality of traction ropes 3 are arranged on the lifting column 41, the number of the traction ropes 3 is equal to that of the feeding plates 1, two ends of the traction ropes 3 are respectively connected with the lifting column 41 and the feeding plates 1, and when the lifting column 41 is lifted or descended relative to the mounting rack, the feeding plates 1 are outwards expanded or inwards contracted relative to the feed bucket 2.
Referring to fig. 2 to 6, the grazing feeding can satisfy the physiological nature of pig pleasure and soil arching to a greater extent than the conventional farming house feeding, can significantly reduce pernicious habits such as mutual biting which may be caused by crowding or not contacting the soil for the whole life, and significantly reduce the possibility of limb diseases easily caused in the all-cement ground environment by contacting the ground or bedding.
For grazing feeding, timely supplementary feeding and preparations such as lactobacillus and the like, the pig body foraging is combined, the carcass quality of the pig can be effectively improved, therefore, based on the reality, the feeding device for pig feeding in grazing feeding is provided, and the feeding device is characterized in that the occupied area of a pasture can be effectively reduced, and the feeding device can be freely extended; in detail, the device comprises a feeding plate 1, a feed bucket 2, a traction rope 3, a lifting component 4 and a stirring component 5, wherein the components have the action mechanism that the lifting component 4 keeps dynamic connection relation with a plurality of feeding plates 1 through a plurality of traction ropes 3 (the total weight of a lifting column 41 at the lifting component 4 is greater than the combined weight of a plurality of feeding plates 1), when any one of the lifting component 4 or the feeding plates 1 is stressed, the structural arrangement of the lifting component 4 and the feeding plates 1 is changed, and the following relation between the lifting component 4 and the feeding plates 1 is stated in detail:
(1) by supplementing the feed into the feed barrel 2, the feed supports the lifting column 41, so that the lifting column 41 moves upwards compared with the feed barrel 2, the feeding plate 1 is promoted to expand outwards relative to the feed barrel 2, and when the feeding plate 1 is in a horizontal state, the feed is uniformly distributed to the feeding plate 1 through the distributing hose 21 and is supplied to the pigs for eating.
(2) When the feed is uniformly distributed to the feeding plates 1, the total weight of the lifting columns 41 at the lifting assemblies 4 is less than the combined weight of the feeding plates 1 and the feed, so that the feeding plates 1 can be expanded at the feed barrel 2 in a relatively balanced state.
(3) After the fodder feeding of 1 department of feeding board is totally consumed, and during no fodder brace lift post 41 in the fodder bucket 2, lift post 41 more fodder bucket 2 inwards contracts, make the feeding board 1 of outside extension, under pulling of haulage rope 3, more fodder bucket 2 inwards contracts, the shrink process, residue such as fodder particulate matter can prolong feeding board 1 landing downwards, avoid the fodder to wet the adhesion on feeding board 1 surface, with in a lot of feeding backs, because of the fodder mildenes and rot the pig pest problem that leads to.
In specific implementation, the feed bucket 2 includes a bucket body 22, the bucket body 22 is a cylindrical bucket body filled with feed, the bucket body 22 is provided with a plurality of material distributing hoses 21, the material distributing hoses 21 are in one-to-one correspondence with the feeding plates 1, and the material distributing hoses 21 are connected with the feeding plates 1.
As shown in fig. 4, the conduction or the blockage of the distribution hose 21 is closely related to the relative position of the feeding plate 1 with respect to the feed barrel 2, that is, when the feeding plate 1 extends to the periphery of the feed barrel 2, the distribution hose 21 is bent, in this state, the feed in the feed barrel 2 cannot pass through the distribution hose 21, on the contrary, when the feeding plate 1 and the feed barrel 2 are vertically arranged, the distribution hose 21 is slowly changed from the blocked state to the unblocked state, and then the feed is distributed from the distribution hose 21 to the feeding plate 1 under the pressure in the feed barrel 2.
When the feed barrel is specifically implemented, the mounting frame comprises a limiting disc 42 and a traction rope track plate 43, the number of the traction rope track plate 43 is equal to the number of the traction ropes 3, the limiting disc 42 is located in the center of an upper port of the feed barrel body 22, the limiting disc 42 is in sliding fit with the lifting column 41, the traction rope track plate 43 is located between the feed barrel 2 and the limiting disc 42, and two ends of the traction rope track plate 43 are fixedly connected with the feed barrel 2 and the limiting disc 42 respectively.
As shown in fig. 2-4, the up-and-down motion of the lifting column 41 is regulated by the limiting disc 42, and the track plate 43 of the hauling rope is used as an intermediate structure for receiving the fodder bucket 2 and the limiting disc 42, and is also used as a regulated structure of the hauling rope 3 for limiting the moving position of the hauling rope 3.
In specific implementation, the lifting column 41 includes a column body 413 sliding relative to the limiting disc 42, a plurality of inward-recessed traction rope grooves 412 are provided on a side wall of the column body 413, the number of the inward-recessed traction rope grooves 412 is the same as that of the traction ropes 3, the inward-recessed traction rope grooves 412 are used for ascending or descending of the column body 413, so that the traction ropes 3 are retracted into the inward-recessed traction rope grooves 412, and in addition, one end of the column body 413 located in the feed bucket 2 is provided with a counterweight 411.
As shown in fig. 6, the nature of the lifting column 41 is a control structure for the motion of the feeding plates 1, that is, when the lifting column 41 is not supported by the feed in the barrel, the lifting column 41 only depends on its own gravity to make the feeding plates 1 contract compared with the feed barrel 2 under the connection of the hauling rope 3, on the contrary, when the lifting column 41 is supported by the feed rising in the barrel, the lifting column 41 moving upwards pulls out the hauling rope 3, the process of pulling out the hauling rope 3 is summarized, and the feeding plates 1 gradually expand outwards compared with the feed barrel 2.
In specific implementation, a limiting rope groove is formed in the position of the traction rope track plate 43, a stirring component 5 is arranged below the limiting rope groove, and the stirring component 5 is in rolling contact with the traction rope 3, so that an action component arranged at the position of the stirring component 5 can move up and down in the feed bucket 2;
the stirring assembly 5 is subdivided, the stirring assembly 5 comprises an assembly shell 51 arranged at the bottom of a traction rope track plate 43, a rope contacting wheel group 52 is arranged in the assembly shell 51, the rope contacting wheel group 52 is a wheel body which is exposed outwards relative to the assembly shell 51, the wheel body passes through the traction rope track plate 43 to reach a limiting rope groove and is in rolling contact with a traction rope 3, a transfer wheel 53 which is in rolling contact with the rope contacting wheel group 52 is arranged in the assembly shell 51, and a poking rod 54 is eccentrically fixed at the end part of the transfer wheel 53;
the guide pipe is arranged at the bottom of the assembly shell 51, the stirring piece 56 is slidably matched in the guide pipe, the stirring piece 56 is a rod piece used for mixing feed in the feed bucket 2, one end of the stirring piece 56 extends into the assembly shell 51 relative to the guide pipe, and one end of the stirring piece 56 extending into the assembly shell 51 is provided with a power taking piece 55 in sliding fit with the poking rod 54 and used for enabling the stirring piece 56 to slide up and down in a reciprocating mode relative to the guide pipe in the rotation of the separating wheel 53.
As shown in fig. 2 to 5, if the particle diameters of the powder such as lactic acid bacteria and the feed are significantly different from each other, the problem of sedimentation is likely to occur when the particle diameters are small, and therefore, the stirring assembly 5 is installed at the traction rope groove 412, so that the rope contact wheel set 52 contacting with the traction rope 3 can rotate in the assembly housing 51 when the traction rope 3 slides along the traction rope groove 412, and the kinetic energy for rotating the rope contact wheel set 52 is utilized in that the transfer wheel 53 makes rolling contact with the rope contact wheel set 52, so that the stirring member 56 placed in the guide pipe can reciprocate up and down in the feed tub 2 when the power take-off member 55 is in sliding fit with the picking rod 54 installed at the transfer wheel 53, so as to stir the mixture of the feed and the powder in the feed tub 2.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. A method for breeding black pigs by utilizing excellent germplasm resources is characterized by comprising the following steps: comprises the following cultivation steps: breeding pig purification and rejuvenation, cross-crossing and fixing of hybrid offspring, and core group breeding and propagation;
wherein,
the breeding pigs include Baker summer pigs and northeast boars;
the cross-crossing fixation of hybrid offspring comprises breeding hybrid offspring of northeast boar pigs and Barkha pigs and cross-crossing fixation among the hybrid offspring;
the boar purification and rejuvenation comprises grazing and feeding the black boars by adopting a black pig breeding device;
the device for cultivating the black pigs by utilizing excellent germplasm resources comprises a feed bucket (2) and a plurality of feeding plates (1) which are arranged around the feed bucket (2), wherein the feeding plates (1) are plate bodies for containing feed, the feeding plates (1) are rotatably arranged at the feed bucket (2), a lifting assembly (4) is arranged in the feed bucket (2), the lifting assembly (4) comprises a mounting rack arranged at the upper end of the feed bucket (2) and a lifting column (41) which is slidably arranged in the mounting rack, the lifting column (41) is provided with a plurality of traction ropes (3) which are equal to the feeding plates (1) in number, two ends of the traction ropes (3) are respectively connected with the lifting column (41) and the feeding plates (1), the traction ropes are used for the lifting column (41) to ascend or descend, the mounting rack (1) is expanded or contracted relative to the feed bucket (2), the feed bucket (2) comprises a bucket body (22), the feed bucket body (22) is a filled cylindrical part, the feed bucket body (22) is provided with the feeding plates (1), and the feeding plates (21) which correspond to the feeding plates (1) one by one;
the mounting rack comprises a limiting disc (42) and a plurality of traction rope track plates (43) with the same number as the traction ropes (3), the limiting disc (42) is located in the center of an upper port of the bucket body (22), the limiting disc (42) is in sliding fit with the lifting column (41), the traction rope track plates (43) are located between the feed bucket (2) and the limiting disc (42), and two ends of each traction rope track plate (43) are fixedly connected with the feed bucket (2) and the limiting disc (42) respectively;
the lifting column (41) comprises a column body (413) in sliding fit with the limiting disc (42), a plurality of inwards-concave traction rope grooves (412) are formed in the side wall of the column body (413), the number of the inwards-concave traction rope grooves (412) is the same as that of the traction ropes (3), the inwards-concave traction rope grooves (412) are used for ascending or descending of the column body (413), so that the traction ropes (3) are retracted into the inwards-concave traction rope grooves (412), and a balancing weight (411) is installed at one end, located in the feed bucket (2), of the column body (413);
the feed bin is characterized in that a limiting rope groove is formed in the position of the traction rope track plate (43), a stirring assembly (5) is installed below the limiting rope groove, the stirring assembly (5) is in rolling contact with the traction rope (3) to enable the stirring assembly (5) to move up and down in the feed bin (2), the stirring assembly (5) comprises an assembly shell (51) installed at the bottom of the traction rope track plate (43), a rope contact wheel set (52) is installed in the assembly shell (51), the rope contact wheel set (52) is a wheel body exposed outwards relative to the assembly shell (51), and the wheel body exposed outwards penetrates through the traction rope track plate (43) to the limiting rope groove to be in rolling contact with the traction rope (3); a transfer wheel (53) which is in rolling contact with the rope contacting wheel set (52) is arranged in the assembling shell (51), and a lifting lever (54) is eccentrically fixed at the end part of the transfer wheel (53); the guide tube is installed to assembly casing (51) bottom, sliding fit has stirring piece (56) in the guide tube, stirring piece (56) are for carrying out the member that stirs to fodder bucket (2) interior fodder, stirring piece (56) one end is extended to assembly casing (51) in than the guide tube, stirring piece (56) extend to assembly casing (51) in one end install with ram (54) slip adaptation power take-off (55) for divide in driving wheel (53) rotate make stirring piece (56) than the guide tube up-and-down reciprocating sliding.
2. The method for breeding black pigs by using excellent germplasm resources according to claim 1, wherein the method comprises the following steps: the Bakker pigs in the breeding pigs serve as male parents, and the northeast civil pigs serve as female parents.
3. The method for breeding black pigs by using excellent germplasm resources according to claim 1, which is characterized by comprising the following steps: the breeding step also comprises the step of testing the meat quality of the Xinjilin black pigs by adopting a molecular biotechnology.
CN202210173507.1A 2022-02-24 2022-02-24 Method for breeding black pigs by utilizing excellent germplasm resources Active CN114667966B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106614356A (en) * 2016-12-23 2017-05-10 江苏农林职业技术学院 Breeding method for Sumei black pigs
CN210841155U (en) * 2019-09-03 2020-06-26 青岛普惠农牧科技有限公司 Feed tray for chicken
CN113973771A (en) * 2021-09-04 2022-01-28 吉林省农业科学院 Method for breeding new Jilin black pigs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470826B2 (en) * 2000-01-19 2002-10-29 The Gsi Group, Inc. Poultry feeder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106614356A (en) * 2016-12-23 2017-05-10 江苏农林职业技术学院 Breeding method for Sumei black pigs
CN210841155U (en) * 2019-09-03 2020-06-26 青岛普惠农牧科技有限公司 Feed tray for chicken
CN113973771A (en) * 2021-09-04 2022-01-28 吉林省农业科学院 Method for breeding new Jilin black pigs

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