CN116918759A - Guanling cattle variety protection and genetic improvement method - Google Patents
Guanling cattle variety protection and genetic improvement method Download PDFInfo
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- CN116918759A CN116918759A CN202310591000.2A CN202310591000A CN116918759A CN 116918759 A CN116918759 A CN 116918759A CN 202310591000 A CN202310591000 A CN 202310591000A CN 116918759 A CN116918759 A CN 116918759A
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- 241000283690 Bos taurus Species 0.000 title claims abstract description 260
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000006872 improvement Effects 0.000 title claims abstract description 45
- 230000002068 genetic effect Effects 0.000 title claims abstract description 23
- 238000009395 breeding Methods 0.000 claims abstract description 53
- 230000001488 breeding effect Effects 0.000 claims abstract description 53
- 244000309464 bull Species 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 210000000582 semen Anatomy 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 21
- 235000015278 beef Nutrition 0.000 claims abstract description 12
- 238000009396 hybridization Methods 0.000 claims abstract description 10
- 239000008280 blood Substances 0.000 claims abstract description 6
- 210000004369 blood Anatomy 0.000 claims abstract description 6
- 241001416150 Bos indicus x Bos taurus Species 0.000 claims description 24
- 238000004458 analytical method Methods 0.000 claims description 15
- 108090000623 proteins and genes Proteins 0.000 claims description 12
- 238000007726 management method Methods 0.000 claims description 11
- 230000037308 hair color Effects 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 6
- 238000010187 selection method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 230000003716 rejuvenation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 235000013372 meat Nutrition 0.000 abstract description 8
- 238000003307 slaughter Methods 0.000 abstract description 4
- 244000309466 calf Species 0.000 abstract description 3
- 239000000796 flavoring agent Substances 0.000 abstract description 2
- 235000019634 flavors Nutrition 0.000 abstract description 2
- 230000012173 estrus Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 244000144992 flock Species 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
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Abstract
The application discloses a Guanling cattle variety protection and genetic improvement method, which comprises the steps of selecting excellent calf from a Guanling cattle producing area to establish a breeding bull station; raising and teaching excellent calves, and measuring and grading the production performance of each stage in the raising process; and selecting excellent bull to produce frozen semen according to the production performance data. The genetic improvement method comprises the steps of hybridization improvement, cross fixation, breeding improvement and group expansion increment. According to the scheme, the red Angas cattle and the Liuzan cattle are introduced for hybridization for multiple times to introduce external blood, so that the hybrid improved cattle group with the advantages of great slaughter body, high slaughter rate and the like is obtained, and then the molecular breeding is carried out in a transverse fixing mode, so that the advantages of fineness of Guan Ling beef, good fat distribution, strong meat flavor and no fishy smell are ensured, the carcass weight of Guanling cattle is increased, and the growth speed and the meat yield of Guanling cattle are improved.
Description
Technical Field
The application belongs to the technical field of cultivation, and particularly relates to a Guanling cattle variety protection and genetic improvement method.
Background
The cattle raising industry in China has long history, but the cattle mainly takes service use for a long time, along with the improvement of the living standard and the enhancement of health care consciousness, the population of eating beef is more and more, the beef variety in China is rich in resources, the beef variety in China mainly comprises middle-primary cattle mainly comprising northern cattle and Qinchuan cattle and south cattle mainly comprising yellow cattle, guan Lingniu belongs to one of the yellow cattle, and Guanling cattle has the advantages of fine meat quality, good fat distribution, strong meat flavor, no fishy smell and the like, but the requirements of the market on the Guanling cattle cannot be met due to the defects of small individual, slower growth, lower meat yield and the like, so that the Guanling cattle variety protection and genetic improvement method is proposed.
Disclosure of Invention
The application aims to provide a method for protecting and genetically improving Guanling cattle varieties, which aims to solve the problem that Guanling cattle cannot meet the market demand for Guanling cattle due to smaller individuals, slower growth and lower meat yield.
In order to achieve the above object, the technical scheme of the present application is as follows: the Guanling cattle variety protecting method comprises the following steps:
s1, selecting excellent guanling cattle with larger birth weight, consistent hair color, high growth speed, clear pedigree and detailed files from guanling cattle producing areas, and concentrating on the breeding management of a cattle station;
s2, raising and teaching excellent guanling beef cattle, and measuring and grading production performance of each stage in the raising process;
s3, selecting the breeding bull with excellent production performance for producing frozen semen according to the production performance data.
Further, the Guanling cattle variety genetic improvement method comprises a hybridization improvement stage, a cross fixing stage and a breeding improvement and group expansion increment stage, wherein the hybridization improvement stage comprises the following steps:
step one: by constructing a bull station, the excellent Guanling cattle species bull, the red Angust cattle species bull and the Limu Zan cattle species bull are mainly raised, and the frozen semen production of the cattle is carried out; the frozen semen produced by Guanling cattle is mainly used for backcrossing with excellent ternary hybrid cows, and then is subjected to a transverse cross fixing stage and a breeding improvement and group expansion increment stage; the introduced red Angust cattle and the production of frozen semen by Lifuzan cattle are mainly used for screening the types, the proportions and the sequences of the introduced exoblood in the genetic improvement scheme of the Guanling cattle and are used for cultivating new Guanling cattle lines;
step two: dividing cattle containing the blood of the Guanling cattle into pure Guanling cattle, pure Guan Lingniu cattle, guanling cattle hybrid cattle and Guanling cattle hybrid cows;
step three: excellent pure guanling cattle are used for seed reservation and semen collection is carried out to produce frozen semen; the other pure Guanling cattle are eliminated and fattened and sold;
step four: dividing the pure breed Guan Lingniu cow, carrying out seed conservation, purification and rejuvenation on one part, and introducing Limu Zan cattle and Hongan Ge Si cattle into one part for culturing new Guanling cattle lines;
step five: measuring the production performance of Guan Lingniu hybrid bull, scientifically evaluating the seed performance of male parent and female parent, and then producing commercial bull, fattening and selling;
step six: the hybrid cows of the Guanling cattle are divided into Xiguan hybrid cattle, an Guan hybrid cattle and Li Guan hybrid cattle according to different male parents, the Xiguan hybrid cattle can be introduced into Angas cattle or Lifuzan cattle, an Guan hybrid cattle can be introduced into Lifuzan cattle, li Guan hybrid cattle can be introduced into Angas cattle for respectively carrying out three-way hybridization production, wherein excellent three-way hybrid cows and Guanling cattle are backcrossed to form new hybrid improved cattle groups after backcrossing, and all non-excellent breeding cattle generated in the breeding process are eliminated and fattening and selling;
step seven: the production performance of the new hybrid improved cattle group is measured, and the bred hybrid bull and the bred hybrid cow which have large primary weight, consistent hair color, high growth speed, clear pedigree and detailed files are selected in a planned way for breeding so as to achieve the aim of transverse fixation; or the selected excellent hybrid bull is subjected to frozen semen production and then is bred with the hybrid bull; all non-excellent bull species generated in the breeding process are eliminated, fattened and sold;
step eight: the breeding improvement quality of the cattle groups depends on the genetic basis and environmental conditions of the cattle groups, and the offspring cattle groups have excellent genes through continuous screening of the cattle groups and scientific seed selection and matching, so that the quality of the cattle groups is continuously improved; all non-excellent bull species generated in the breeding process are eliminated, fattened and sold;
step nine: the method comprises the steps of crossing a foreign province introduced hybrid cow by frozen semen of Guanling cows, selecting excellent cross offspring cows, carrying out three-way cross production on the excellent cross offspring cows and red angust cows or Limu pran cows, carrying out backcrossing on the excellent three-way cross cows and Guanling cow species cows, forming a new cross improvement cow group after backcrossing, carrying out cross fixation and breeding improvement stage, and eliminating all non-excellent species cows generated in the breeding process, fattening and selling.
In the cross fixing stage, an index selection method is adopted to select and leave the cattle with the breeding index ranking of 50% as cattle in the improved hybrid cattle group, so that a ternary hybrid synthetic line is formed for cross fixing.
Further, the cross-fixed hybrid cattle group is screened by adopting an index selection method in the breeding improvement and group expansion increment stage, the filial generation with consistent hair color and large and uniform size is screened, the gene analysis is carried out on the filial generation, the gene for gene marking is screened, the Guan Ling hybrid cattle with stable characters is obtained by expanding molecular breeding, and then the self-group breeding increment is carried out.
Further, the number of the pure guanling cow groups in the step four is 3500-5000.
Further, the number of the cross cow groups of the Guanling cows in the step six is 1500-2000.
Further, in the genetic improvement process, the cattle group is monitored by using a pasture management system, wherein the pasture management system comprises a display and a server, and the server is in signal connection with a memory, a data acquisition module, a characteristic extraction module and an analysis and comparison module;
the memory is used for storing identity information of the Guanling cattle;
the data acquisition module is used for acquiring image information of the Guanling cattle;
the feature extraction module is used for extracting feature points of the Guanling cattle;
the analysis and comparison module is used for characteristic analysis of the Guanling cattle.
After the scheme is adopted, the following beneficial effects are realized:
1. the proposal introduces red Angust bull and Li Muzan bull to hybridize with pure guanling cow to obtain first-generation hybrid cow, hybridizes on the basis of first-generation hybrid cow for multiple times, adopts guanling cow frozen semen to hybridize to improve the cow purchased in the outer province to obtain an improved hybrid cow group with red Angust cow and Limu pran cow blood margin, has the advantages of carcass weight and slaughter rate, adopts a transverse fixing mode to carry out molecular breeding on the improved hybrid cow group, ensures the advantages of fine Guan Ling beef quality, good fat distribution and strong meat taste without fishy smell, also has the advantages of large body size and fast growth of foreign improved variety beef, increases the body size of guanling cow, and improves the growth speed, slaughter weight and meat yield of guanling cow;
2. according to the technical scheme, the pasture management system is introduced to monitor the flock in real time, so that the growth condition of the flock, especially the estrus and calving condition of the cows, can be conveniently and timely assisted with artificial mating and artificial delivery when necessary, the conception rate of the cows is improved, the difficult yield of the cows is reduced, and the breeding period is shortened.
Drawings
FIG. 1 is a schematic flow chart of the Guanling cattle variety protection according to the embodiment of the application.
FIG. 2 is a schematic flow chart of genetic improvement of Guanling cattle breeds according to an embodiment of the application.
Fig. 3 is a schematic block diagram of a pasture management system according to an embodiment of the application.
Detailed Description
The following is a further detailed description of the embodiments:
an example is substantially as shown in figures 1-3 of the accompanying drawings:
the Guanling cattle variety protecting method improves the excellent frozen semen supplying capability of cattle to protect the Guanling cattle variety, and comprises the following specific steps:
s1, selecting excellent guanling beef cattle with larger birth weight, consistent hair color, high growth speed, clear pedigree and detailed files from guanling beef cattle producing areas, and concentrating on the breeding management of a beef cattle station.
S2, raising and teaching excellent guanling beef cattle, and measuring and grading the production performance of each stage in the raising process.
S3, selecting the breeding bull with excellent production performance for producing frozen semen according to the production performance data.
The Guanling cattle variety genetic improvement method comprises a hybridization improvement stage, a cross fixing stage and a breeding improvement and group expansion increment stage, wherein the hybridization improvement stage comprises the following steps:
step one: by constructing a bull station, the excellent Guanling cattle species bull, the red Angust cattle species bull and the Limu Zan cattle species bull are mainly raised, and the frozen semen production of the cattle is carried out; the frozen semen produced by Guanling cattle is mainly used for backcrossing with excellent ternary hybrid cows, and then is subjected to a transverse cross fixing stage and a breeding improvement and group expansion increment stage; the introduced frozen semen produced by the red Angas cattle and the Lifuzan cattle is mainly used for screening the types, the proportions and the sequences of the introduced foreign blood in the genetic improvement scheme of the Guanling cattle and is used for cultivating new Guanling cattle lines.
Step two: dividing cattle containing the blood of the Guanling cattle into pure Guanling cattle, pure Guan Lingniu cattle, guanling cattle hybrid cattle and Guanling cattle hybrid cows;
step three: excellent pure guanling cattle are used for seed reservation and semen collection is carried out to produce frozen semen; other pure Guanling cattle are eliminated and fattened and sold.
Step four: dividing regions of the pure breed Guan Lingniu cows, carrying out seed conservation, purification and rejuvenation on one part, and carrying out cultivation of new strain of the Guanling cow by introducing Limu Zan cows and Hongan Ge-Si cows on one part, wherein the number of the pure breed Guan Lingniu cow groups is 3500-5000.
Step five: and (3) measuring the production performance of the Guan Lingniu hybrid bull, scientifically evaluating the seed performance of the male parent and the female parent of the hybrid bull, and then producing commercial bull and fattening for sale.
Step six: the hybrid cows of the Guanling cows are divided into a Xiguan hybrid cow, a An Guan hybrid cow and a Li Guan hybrid cow according to the difference of male parents of the hybrid cows, the Xiguan hybrid cow can be introduced into an angus cow or a Lifuzan cow, the An Guan hybrid cow is introduced into a Lifuzan cow, the Li Guan hybrid cow is introduced into an angus cow, and the three-way hybrid production is respectively carried out, wherein the hybrid cows of the Guanling cows;
wherein, the excellent three-way hybrid cows and the related-green cattle are backcrossed to form a new hybrid improved cattle group after backcrossing, and all the non-excellent cattle generated in the breeding process are eliminated and fattened and sold.
Step seven: the new hybrid improved cattle group is subjected to production performance measurement, and the bred hybrid bull and hybrid cow which have large primary weight, consistent hair color, high growth speed, clear pedigree and detailed files are selected in a planned way for breeding so as to achieve the aim of transverse fixation. In order to rapidly expand the size of the cattle group, the bred excellent hybrid bull can be subjected to frozen semen production and then bred with the hybrid bull; all the non-excellent bull species generated in the breeding process are eliminated and fattening and selling are carried out.
Step eight: the breeding improvement quality of the cattle groups depends on the genetic basis and environmental conditions of the cattle groups, and the offspring cattle groups have excellent genes through continuous screening of the cattle groups and scientific seed selection and matching, so that the quality of the cattle groups is continuously improved; all the non-excellent bull species generated in the breeding process are eliminated and fattening and selling are carried out.
Step nine: the method comprises the steps of crossing a foreign province introduced hybrid cow by frozen semen of Guanling cows, selecting excellent cross offspring cows, carrying out three-way cross production on the excellent cross offspring cows and red angust cows or Limu pran cows, carrying out backcrossing on the excellent three-way cross cows and Guanling cow species cows, forming new cross improved cows after backcrossing, carrying out cross fixation and breeding improvement stages, and eliminating all non-excellent species cows generated in the breeding process, fattening and selling.
And in the cross fixing stage, an index selection method is adopted to select and leave the cattle with the breeding index ranking of 50% as cattle in the improved hybrid cattle group, so as to form a ternary hybrid synthetic line for cross fixing.
And in the breeding and increasing stage, an index selection method is adopted to screen the cross-fixed hybrid cattle group, the filial generation with consistent hair color and large and uniform size is screened, the gene analysis is carried out on the filial generation, the gene which can be used for gene marking is screened, the molecular breeding is developed to obtain Guan Ling hybrid cattle with stable characters, and then the self-group breeding increasing is carried out.
In the genetic improvement process, monitoring the cattle group by using a pasture management system, wherein the pasture management system comprises a display and a server, and the server is in signal connection with a memory, a data acquisition module, a characteristic extraction module and an analysis and comparison module;
the memory is used for storing identity information of the Guanling cattle;
the data acquisition module is used for acquiring image information of the Guanling cattle;
the feature extraction module is used for extracting feature points of the Guanling cattle;
the analysis and comparison module is used for characteristic analysis of the Guanling cattle.
The monitoring method comprises the following steps:
1. using a data acquisition module to acquire image information of Guan Lingniu, establishing a Guanling cattle identity information base and storing the information base into a memory;
2. according to the image information of Guan Lingniu, adopting a feature extraction module to extract features of the image information, and establishing an oestrus feature information base and a calving feature information base of the Guanling cattle;
3. the data acquisition module is used for monitoring the flock in real time and transmitting information to the analysis and comparison module, the analysis and comparison module is used for carrying out feature analysis on the received information and the information in the estrus feature information base and the calving feature information base, judging whether the cow is in estrus or about to calve, and the artificial mating and artificial delivery assistance are convenient to assist in time when necessary so as to improve the conception rate of the cow, reduce the difficult yield of the cow and shorten the breeding period.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The Guanling cattle variety protection method is characterized by comprising the following steps of: the method comprises the following steps:
s1, selecting excellent guanling cattle with larger birth weight, consistent hair color, high growth speed, clear pedigree and detailed files from guanling cattle producing areas, and concentrating on the breeding management of a cattle station;
s2, raising and teaching excellent guanling beef cattle, and measuring and grading production performance of each stage in the raising process;
s3, selecting the breeding bull with excellent production performance for producing frozen semen according to the production performance data.
2. The method for genetically improving the Guanling cattle variety is characterized by comprising the following steps of: comprises a hybridization improvement stage, a cross fixing stage and a breeding improvement and group expansion increment stage, wherein the hybridization improvement stage comprises the following steps:
step one: by constructing a bull station, the excellent Guanling cattle species bull, the red Angust cattle species bull and the Limu Zan cattle species bull are mainly raised, and the frozen semen production of the cattle is carried out; the frozen semen produced by Guanling cattle is mainly used for backcrossing with excellent ternary hybrid cows, and then is subjected to a transverse cross fixing stage and a breeding improvement and group expansion increment stage; the introduced red Angust cattle and the production of frozen semen by Lifuzan cattle are mainly used for screening the types, the proportions and the sequences of the introduced exoblood in the genetic improvement scheme of the Guanling cattle and are used for cultivating new Guanling cattle lines;
step two: dividing cattle containing the blood of the Guanling cattle into pure Guanling cattle, pure Guan Lingniu cattle, guanling cattle hybrid cattle and Guanling cattle hybrid cows;
step three: excellent pure guanling cattle are used for seed reservation and semen collection is carried out to produce frozen semen; the other pure Guanling cattle are eliminated and fattened and sold;
step four: dividing regions of pure breed Guan Lingniu cows, carrying out seed conservation, purification and rejuvenation on part of the pure breed Guan Lingniu cows, and carrying out cultivation of new strains of Guanling cows by introducing Limu Zan cows and Hongan Ge cows;
step five: measuring the production performance of Guan Lingniu hybrid bull, scientifically evaluating the seed performance of male parent and female parent, and then producing commercial bull, fattening and selling;
step six: the hybrid cows of the Guanling cattle are divided into Xiguan hybrid cattle, an Guan hybrid cattle and Li Guan hybrid cattle according to different male parents, the Xiguan hybrid cattle can be introduced into Angas cattle or Lifuzan cattle, an Guan hybrid cattle can be introduced into Lifuzan cattle, li Guan hybrid cattle can be introduced into Angas cattle for respectively carrying out three-way hybridization production, wherein excellent three-way hybrid cows and Guanling cattle are backcrossed to form new hybrid improved cattle groups after backcrossing, and all non-excellent breeding cattle generated in the breeding process are eliminated and fattening and selling;
step seven: the new hybrid improved cattle group is subjected to production performance measurement, the bred hybrid bull and the hybrid cow which are large in primary weight, consistent in hair color, high in growth speed, clear in pedigree and detailed in archives are selected in a planned way for breeding so as to achieve the purpose of transverse fixation, and the bred excellent hybrid bull can be subjected to frozen semen production and then bred with the hybrid cow; all non-excellent bull species generated in the breeding process are eliminated, fattened and sold;
step eight: the breeding improvement quality of the cattle groups depends on the genetic basis and environmental conditions of the cattle groups, and the offspring cattle groups have excellent genes through continuous screening of the cattle groups and scientific seed selection and matching, so that the quality of the cattle groups is continuously improved; all non-excellent bull species generated in the breeding process are eliminated, fattened and sold;
step nine: the method comprises the steps of crossing a foreign province introduced hybrid cow by frozen semen of Guanling cows, selecting excellent cross offspring cows, carrying out three-way cross production on the excellent cross offspring cows and red angust cows or Limu pran cows, carrying out backcrossing on the excellent three-way cross cows and Guanling cow species cows, forming a new cross improvement cow group after backcrossing, carrying out cross fixation and breeding improvement stage, and eliminating all non-excellent species cows generated in the breeding process, fattening and selling.
3. The method for genetic improvement of guanling cattle breeds according to claim 2, wherein: and in the cross fixing stage, an index selection method is adopted to select and leave the cattle with the breeding index ranking of 50% as cattle in the improved hybrid cattle group, so as to form a ternary hybrid synthetic line for cross fixing.
4. The method for genetic improvement of guanling cattle breeds according to claim 2, wherein: and in the breeding and increasing stage, an index selection method is adopted to screen the cross-fixed hybrid cattle group, the filial generation with consistent hair color and large and uniform size is screened, the gene analysis is carried out on the filial generation, the gene which can be used for gene marking is screened, the molecular breeding is developed to obtain Guan Ling hybrid cattle with stable characters, and then the self-group breeding increasing is carried out.
5. The method for genetic improvement of guanling cattle breeds according to claim 2, wherein: the number of the pure guanling cow groups in the step four is 3500-5000.
6. The method for genetic improvement of guanling cattle breeds according to claim 2, wherein: the number of the cross cow groups of the Guanling cows in the step six is 1500-2000.
7. The method for genetic improvement of guanling cattle breeds according to claim 2, wherein: in the genetic improvement process, monitoring the cattle group by using a pasture management system, wherein the pasture management system comprises a display and a server, and the server is in signal connection with a memory, a data acquisition module, a characteristic extraction module and an analysis and comparison module;
the memory is used for storing identity information of the Guanling cattle;
the data acquisition module is used for acquiring image information of the Guanling cattle;
the feature extraction module is used for extracting feature points of the Guanling cattle;
the analysis and comparison module is used for characteristic analysis of the Guanling cattle.
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| CN202310591000.2A CN116918759A (en) | 2023-05-24 | 2023-05-24 | Guanling cattle variety protection and genetic improvement method |
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| CN202310591000.2A CN116918759A (en) | 2023-05-24 | 2023-05-24 | Guanling cattle variety protection and genetic improvement method |
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