Method for breeding fat-lean alternate high-quality commercial cattle suitable for frying, roasting and stir-frying

Abstract

The invention provides a method for breeding fat-lean alternate high-quality commercial cattle suitable for frying, roasting and frying, which comprises the following steps: hybridizing Shuxuan Hua cattle as a female parent and Yunling cattle as a male parent to obtain F1-generation hybrid cattle; the method comprises the following steps: hybridizing adult F1-generation hybrid cattle serving as a second-generation female parent and Hereford cattle frozen-control sperm Y sperms serving as a second-generation male parent to obtain commercial cattle, and performing GnRH immune castration on four-month-old commercial bulls. According to the method, the Shuxuan hua cattle and the Yunling cattle are hybridized, and the advantages of the Shuxuan hua cattle and the Yunling cattle are combined, so that the F1-generation hybrid cattle has high-quality beef potential. Then, the F1-generation hybrid cattle are hybridized with Y sperms of the Haiford cattle, so that the hereditary characteristics of the commercial cattle are optimized, and the dual advantages of meat quality and growth performance are ensured. According to the method, the four-month-old bull is subjected to GnRH immune castration, the weight of the GnRH immune castration bull is increased faster, the meat is marble-shaped and is suitable for frying, roasting and stir-frying, the growth speed is increased, and the production level is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cattle breeding, in particular to a method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying. Background Art

[0003] In 2023, my country's per capita beef consumption will reach 7.0 kg / person. The growth rate of my country's high-end beef supply has failed to meet the rapid increase in market demand, resulting in a situation of supply exceeding demand in the market. Although my country has rich cattle breed resources, the production level of high-end beef is relatively low due to the imperfect breeding system of beef cattle and the imperfect production and market circulation standards. Summary of the invention

[0004] The present invention aims to at least solve the technical problem of relatively low production level of high-grade beef in the prior art, and in particular innovatively proposes a method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying.

[0005] In order to achieve the above-mentioned object of the present invention, the present invention provides a method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying, the method comprising:

[0006] S1, using Shuxuanhua cattle as the female parent and Yunling cattle as the male parent to crossbreed and obtain F1 hybrid cattle;

[0007] S2, using adult F1 hybrid cattle as the second generation female parent and Hereford cattle frozen sperm Y sperm as the second generation male parent to crossbreed and obtain commercial cattle;

[0008] S3. Perform GnRH immunocastration on the four-month-old commercial bulls.

[0009] As an optional embodiment of the present invention, optionally, in step S1, the Yunling cattle as the male parent uses sex-controlled frozen sperm X sperm.

[0010] As an optional embodiment of the present invention, optionally, the Hereford cattle controlled frozen semen Y sperm is milky white or light yellow, and the semen collection volume of the Hereford cattle controlled frozen semen Y sperm is (8.28±1.13) mL.

[0011] As an optional embodiment of the present invention, optionally, the pH value of the Hereford bull frozen sperm Y sperm is 7.03±0.09.

[0012] As an optional embodiment of the present invention, optionally, the density of the Hereford bull controlled frozen semen Y sperm is (1.067±1.67) billion / mL.

[0013] As an optional embodiment of the present invention, optionally, the motility of the Hereford bull controlled frozen semen Y sperm is 0.88±0.05.

[0014] As an optional embodiment of the present invention, optionally, the deformity rate of the Hereford bull controlled frozen semen Y sperm is 9.52%±2.46%.

[0015] As an optional embodiment of the present invention, optionally, the sperm motility of the Hereford bull controlled frozen sperm Y sperm after thawing is not less than 0.3, and the survival time at 37 degrees is greater than 4 hours.

[0016] As an optional embodiment of the present invention, optionally, in step S3, the four-month-old commercial bull is injected with GnRH immune castration vaccine twice in a row at intervals of eight weeks.

[0017] As an optional embodiment of the present invention, optionally, 5 ml of the GnRH immune castration vaccine is injected each time.

[0018] The beneficial effect of the present invention is that the present invention firstly uses Shuxuanhua cattle as the female parent and Yunling cattle as the male parent for hybridization, effectively integrating the advantages of Shuxuanhua cattle's tender meat and Yunling cattle's excellent meat properties and heat resistance and tick resistance, so that the F1 generation hybrid cattle has the potential of high-quality beef genetically. Then, the adult F1 generation hybrid cattle is used as the second generation female parent, and hybridized with Hereford cattle's controlled frozen sperm Y sperm, and the genetic characteristics of commercial cattle are further screened and optimized. Hereford cattle are famous for their obvious meat marble pattern and good meat performance, and the use of their controlled frozen sperm Y sperm ensures the dual advantages of commercial cattle in meat quality and growth performance. In addition, the present invention also pays special attention to the castration treatment of commercial cattle. By performing GnRH immunocastration on bulls at the age of four months, GnRH immunocastrated cattle gain weight faster, have higher feed utilization, more tender meat, more delicious taste, richer fat deposited between muscle fibers, and marbled meat production suitable for frying, roasting and stir-frying. It greatly improves the growth rate, and the meat yield is higher, the proportion of marbled meat is higher, and the production level is improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is the breeding roadmap of the present invention. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] like Figure 1 As shown, a method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying, the method comprising:

[0024] S1, using Shuxuanhua cattle as the female parent and Yunling cattle as the male parent to crossbreed and obtain F1 hybrid cattle;

[0025] It should be noted that, in this embodiment, 200 healthy Shuxuanhua cattle were selected as female parents, and 400 sex-controlled frozen sperm of purebred Yunling cattle were artificially inseminated twice to obtain 160 hybrid F1 generation basic cows.

[0026] S2, using adult F1 hybrid cattle as the second generation female parent and Hereford cattle frozen sperm Y sperm as the second generation male parent to crossbreed and obtain commercial cattle;

[0027] It should be noted that, in the present embodiment, 150 hybrid F1 generation basic cows were selected, 300 purebred Hereford cattle sex-controlled frozen sperm Y sperm were artificially inseminated twice, and 143 commercial bulls were obtained. In the breeding process of commercial cattle, scientific feed formula and meticulous management measures were adopted to ensure that the commercial cattle obtained sufficient nutrition and a good growth environment. In addition, the commercial cattle were regularly examined and vaccinated to prevent the occurrence of diseases and further improve the health level and growth performance of the commercial cattle. Through the breeding method of the present embodiment, the obtained commercial cattle not only have tender meat and delicious taste, but also have rich fat deposits between muscle fibers, presenting a marble pattern, which is very suitable for frying, roasting, frying and other cooking methods, meeting the market demand for high-quality beef.

[0028] S3. Perform GnRH immunocastration on the four-month-old commercial bulls.

[0029] It should be noted that, in the present embodiment, 140 commercial cattle bulls were selected, and at the age of four months, the GnRH immune castration vaccine was injected twice in a row every eight weeks, and each injection of the vaccine was 5 ml. Through the GnRH immune castration treatment, not only can the bad behaviors of the bulls after sexual maturity, such as aggression and fighting, be avoided, but also the growth and development of the bulls can be promoted, the feed utilization rate can be improved, and the meat quality can be more tender and the taste can be more delicious. At the same time, the GnRH immune castration treatment can also reduce the male hormone secretion in the bulls, reduce their stress response to the environment, and further improve the health level and production performance of the commercial cattle. The commercial cattle treated with GnRH immune castration have a unique marble pattern, fat and thin, delicious taste, and are very suitable for frying, roasting, frying and other cooking methods, which meet the taste requirements of consumers for high-quality beef.

[0030] The breeding method of commercial bulls is adapted to tropical and subtropical climates (such as the Sichuan and Chongqing areas) and is the same as the large-scale breeding of beef cattle.

[0031] The production performance of a commercial cattle suitable for frying, roasting and stir-frying is shown in Table 1.

[0032] Table 1 Production performance of a commercial beef suitable for frying, roasting and stir-frying

[0033]

[0034]

[0035] In summary, this embodiment first hybridizes the Shuxuan flower cattle as the female parent and the Yunling cattle as the male parent, effectively integrating the tender meat of the Shuxuan flower cattle and the excellent meat properties and heat resistance and tick resistance of the Yunling cattle, so that the F1 generation hybrid cattle has the potential of high-quality beef genetically. Then, the adult F1 generation hybrid cattle is used as the second generation female parent, and hybridized with the frozen sperm of the Hereford cattle, and the genetic characteristics of the commercial cattle are further screened and optimized. Hereford cattle are famous for their obvious meat marble pattern and good meat performance. The use of its frozen sperm Y sperm ensures the dual advantages of commercial cattle in meat quality and growth performance. In addition, the present invention also pays special attention to the castration of commercial cattle. By performing GnRH immune castration on bulls at the age of four months, GnRH immune castrated cattle gain weight faster, have higher feed utilization, more tender meat, more delicious taste, richer fat deposited between muscle fibers, and marbled meat production suitable for frying, roasting and stir-frying. It greatly improves the growth rate, produces higher meat yield and a higher proportion of marbled meat, thus improving the production level.

[0036] As an optional embodiment of the present invention, optionally, in step S1, the Yunling cattle as the male parent uses sex-controlled frozen sperm X sperm.

[0037] It should be noted that the use of sex-controlled frozen sperm X sperm can significantly increase the proportion of bull calves, thereby increasing the number of subsequent commercial cattle. In this embodiment, Yunling cattle are selected as the male parent sex-controlled frozen sperm X sperm, and hybridized with the female parent of Shuxuanhua cattle through artificial insemination technology, ensuring the genetic stability and transmission of excellent traits of F1 hybrid cattle. In addition, the use of sex-controlled frozen sperm technology can also effectively avoid the genetic defects caused by inbreeding, and improve the genetic quality and production performance of the entire cattle herd. Through the meticulous management of this step, a solid foundation has been laid for the subsequent commercial cattle breeding.

[0038] As an optional embodiment of the present invention, optionally, the Hereford cattle controlled frozen semen Y sperm is milky white or light yellow, and the semen collection volume of the Hereford cattle controlled frozen semen Y sperm is (8.28±1.13) mL.

[0039] It should be noted that the collection process of Hereford cattle controlled frozen sperm Y strictly abides by animal welfare and ethical principles, ensuring the minimum interference and maximum comfort of Hereford cattle. After collection, the sperm undergoes strict screening and processing to ensure its quality and adaptability, so as to meet the needs of high-quality commercial cattle breeding. The meticulous management of this step is crucial to the subsequent genetic quality and production performance of commercial cattle.

[0040] As an optional embodiment of the present invention, optionally, the pH value of the Hereford bull frozen sperm Y sperm is 7.03±0.09.

[0041] It should be noted that the pH range ensures the stability and activity of sperm during storage and transportation, providing a reliable guarantee for subsequent hybrid breeding. At the same time, strict control of the pH value of Hereford cattle frozen sperm Y can also effectively avoid sperm damage and death caused by pH changes during storage, further improving sperm utilization and the success rate of hybrid breeding.

[0042] As an optional embodiment of the present invention, optionally, the density of the Hereford bull controlled frozen semen Y sperm is (1.067±1.67) billion / mL.

[0043] It should be noted that sperm density is an important indicator for measuring sperm count. High-density sperm can ensure sufficient sperm count during artificial insemination, thereby improving fertilization rate and pregnancy rate. In this embodiment, by strictly controlling the density of Hereford cattle frozen sperm Y sperm, its stability and activity during storage and transportation are ensured, providing reliable guarantee for subsequent hybrid breeding work. The meticulous management of this step is of great significance for improving the genetic quality and production performance of commercial cattle.

[0044] As an optional embodiment of the present invention, optionally, the motility of the Hereford bull controlled frozen semen Y sperm is 0.88±0.05.

[0045] It should be noted that sperm motility is an important indicator for measuring sperm motility and fertilization ability. Highly active sperm can ensure effective combination with eggs during artificial insemination, thereby improving fertilization rate and embryo quality. In this embodiment, by carefully managing and controlling the vitality of Heiford cattle frozen sperm Y sperm, its stability and activity during storage and transportation are ensured, providing reliable guarantee for subsequent hybrid breeding work. The meticulous management of this step plays a vital role in improving the genetic quality and production performance of commercial cattle. Through the breeding method of this embodiment, the commercial cattle obtained not only have excellent genetic quality and production performance, but also have tender meat and delicious taste, which is very suitable for frying, roasting, stir-frying and other cooking methods, meeting the market's diversified demand for high-quality beef.

[0046] As an optional embodiment of the present invention, optionally, the deformity rate of the Hereford bull controlled frozen semen Y sperm is 9.52%±2.46%.

[0047] It should be noted that the sperm deformity rate is an important indicator to measure whether the sperm morphology is normal or not. A lower deformity rate can ensure that a higher proportion of sperm with normal morphology participate in fertilization during artificial insemination, thereby improving the quality of the embryo and the genetic quality of subsequent commercial cattle. In this embodiment, by strictly screening and processing the frozen Y sperm of Hereford cattle, the deformity rate is controlled at a low level, providing a strong guarantee for subsequent hybrid breeding work. The meticulous management of this step is of great significance for improving the genetic stability and production performance of commercial cattle.

[0048] As an optional embodiment of the present invention, optionally, the sperm motility of the Hereford bull controlled frozen sperm Y sperm after thawing is not less than 0.3, and the survival time at 37 degrees is greater than 4 hours.

[0049] It should be noted that the sperm motility after thawing is not less than 0.3, which ensures that the frozen sperm Y sperm of Hereford cattle still has good motility and fertilization ability after thawing, and provides more flexibility and reliability for subsequent hybrid breeding work. In this embodiment, by scientifically thawing and survival time testing of the frozen sperm Y sperm of Hereford cattle, it is ensured that its vitality and survival time after thawing meet the needs of high-quality commercial cattle breeding. The meticulous management of this step is of great significance for improving the fertilization rate and embryo quality of commercial cattle, and further guarantees the genetic quality and production performance of commercial cattle.

[0050] As an optional embodiment of the present invention, optionally, in step S3, the four-month-old commercial bull is injected with GnRH immune castration vaccine twice in a row at intervals of eight weeks.

[0051] It should be noted that by regularly injecting GnRH immune castration vaccine, it can be ensured that commercial cattle bulls gradually lose male characteristics during the growth and development process, while avoiding the pain and pressure caused by physical castration of bulls. In this embodiment, four months of age are selected as the starting time for injection of the vaccine because the bulls have not yet entered the sexual maturity period at this time, and the injection of the vaccine can better exert its castration effect. Injection twice every eight weeks can further consolidate the castration effect and ensure that the bulls will not have bad behaviors after sexual maturity in the subsequent growth process. The meticulous management of this step is of great significance for improving the health level and production performance of commercial cattle, and it also meets the requirements of animal welfare and ethical principles. Four-month-old commercial cattle bulls are injected with 5ml of GnRH immune castration vaccine subcutaneously twice in the neck at an interval of 8 weeks, and fattened to 18 months of age, which has passed the 42-day biosafety period.

[0052] As an optional embodiment of the present invention, optionally, 5 ml of the GnRH immune castration vaccine is injected each time.

[0053] It should be noted that each injection of 5ml of GnRH immune castration vaccine can ensure that the vaccine plays the best castration effect in the body of commercial cattle bulls, while avoiding unnecessary damage and side effects to the bulls. In this embodiment, 5ml is selected as the dosage for each injection, based on a comprehensive consideration of the growth and development of bulls and the castration effect. Through the meticulous management of this dosage, the health level and production performance of commercial cattle can be further improved, while ensuring that the utilization rate and effect of the vaccine reach the best state. In addition, regular injection of GnRH immune castration vaccine can also reduce the secretion of male hormones in the body of bulls, reduce their stress response to the environment, make commercial cattle more adaptable to the environment and conditions of large-scale breeding, and provide more convenience and guarantee for subsequent fattening and slaughtering. Through the breeding method of this embodiment, the obtained commercial cattle not only have excellent genetic quality and production performance, but also have tender meat and delicious taste, which is very suitable for frying, roasting, frying and other cooking methods, meeting the market's diversified demand for high-quality beef, but also providing strong technical support and guarantee for the sustainable development of the beef cattle industry.

[0054] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying, characterized in that: The method comprises: S1, using Shuxuanhua cattle as the female parent and Yunling cattle as the male parent to crossbreed and obtain F1 hybrid cattle; S2, using adult F1 hybrid cattle as the second generation female parent and Hereford cattle frozen sperm Y sperm as the second generation male parent to crossbreed and obtain commercial cattle; S3. Perform GnRH immunocastration on the four-month-old commercial bulls.

2. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1, characterized in that: In step S1, the Yunling cattle are selected as the male parent and sex-controlled frozen sperm X sperm is selected.

3. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1 or 2, characterized in that: The Hereford cattle controlled frozen semen Y sperm is milky white or light yellow, and the semen collection volume of the Hereford cattle controlled frozen semen Y sperm is (8.28±1.13) mL.

4. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1 or 2, characterized in that: The pH value of the Hereford bull controlled frozen semen Y sperm is 7.03±0.

09.

5. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1 or 2, characterized in that: The density of the Heiford bull controlled frozen semen Y sperm is (1.067±1.67) billion / mL.

6. A method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1 or 2, characterized in that: The motility of the Hereford bull controlled frozen sperm Y was 0.88±0.

05.

7. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1 or 2, characterized in that: The deformity rate of Y sperm in Hereford cattle controlled frozen semen is 9.52%±2.46%.

8. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1, characterized in that: The sperm motility of the Hereford bull-controlled frozen Y sperm after thawing is not less than 0.3, and the survival time at 37 degrees is greater than 4 hours.

9. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 1, characterized in that: In step S3, the commercial bull cattle at four months old are injected with GnRH immune castration vaccine twice at intervals of eight weeks.

10. The method for breeding high-quality commercial cattle with alternating fat and lean meat suitable for frying, roasting and stir-frying as claimed in claim 9, characterized in that: Each injection of the GnRH castration vaccine was 5 ml.

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