CN110959584A - Breeding method for improving silk quality - Google Patents
Breeding method for improving silk quality Download PDFInfo
- Publication number
- CN110959584A CN110959584A CN201911326940.9A CN201911326940A CN110959584A CN 110959584 A CN110959584 A CN 110959584A CN 201911326940 A CN201911326940 A CN 201911326940A CN 110959584 A CN110959584 A CN 110959584A
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- China
- Prior art keywords
- silkworm
- quality
- silk
- breeding
- cocoons
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- 238000009395 breeding Methods 0.000 title claims abstract description 38
- 241000255789 Bombyx mori Species 0.000 claims abstract description 96
- 230000001488 breeding effect Effects 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 230000013011 mating Effects 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- 235000013601 eggs Nutrition 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000002372 labelling Methods 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 241000382353 Pupa Species 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000009396 hybridization Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000017448 oviposition Effects 0.000 description 2
- 108010013296 Sericins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- 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
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
- A01K67/04—Silkworms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B7/00—Obtaining silk fibres or filaments
- D01B7/04—Reeling silk
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Peptides Or Proteins (AREA)
Abstract
The invention discloses a breeding method for improving the quality of silk, which comprises the following steps: (1) selecting 2-4 breeding areas for each silkworm variety, and randomly selecting 200 cocoons in each breeding area; (2) screening the silkworm cocoons randomly selected in each area; (3) reeling live silkworm chrysalis on the silkworm cocoons selected in the step (2), marking each silkworm cocoon, then placing the corresponding live silkworm chrysalis in a box and marking the number of the corresponding silkworm cocoon; (4) separating male and female silkworm chrysalis, and ranking the male and female silkworm chrysalis according to the reeling result; (5) correspondingly mating male silkworm chrysalis and female silkworm chrysalis in each breeding area according to the ranking of the male silkworm chrysalis and the female silkworm chrysalis, and laying eggs and producing seeds; (6) repeating the five steps, and carrying out directional selection and seed production for three consecutive years to obtain the high-quality silkworm seeds. The invention can greatly improve the cocoon silk quality and quality of the silkworm by optimizing breeding materials and carrying out reciprocating optimization breeding seed production, thereby creating materials for breeding.
Description
Technical Field
The invention belongs to the technical field of silkworm breeding, and particularly relates to a breeding method for improving the quality of silk.
Background
At present, silkworm breeding materials are bred by the traditional routine method, each material is bred in 2-4 areas, 400 silkworms in each area are randomly counted after four ages are grown for one day and are used as the base number for result investigation, after five ages are cocoons for 6 days, cocoons are collected to investigate three indexes of silkworm yield, health and cocoon quality in each area, then cocoons with the best results are selected, male and female pupas are separated, and moths are mated and spawned.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a breeding method for improving the quality of silk aiming at the defects of the prior art, and the breeding method can improve the quality of silkworm eggs, thereby improving the silk length and the purity of silkworm cocoons and ensuring the quality of the silk.
The technical scheme adopted by the invention is as follows: a breeding method for improving the quality of silk comprises the following steps:
(1) selecting 2-4 breeding areas for each silkworm variety, and randomly selecting 180-250 silkworm cocoons in each breeding area;
(2) screening the silkworm cocoons randomly selected in each area, and leaving the silkworm cocoons with uniform sizes for later use;
(3) reeling live silkworm chrysalis on the silkworm cocoons selected in the step (2), recording the reeling result of each silkworm cocoon, labeling each silkworm cocoon, and then placing the corresponding live silkworm chrysalis in a box and labeling the number of the corresponding silkworm cocoon;
(4) separating male and female silkworm chrysalis, and ranking the male and female silkworm chrysalis according to the reeling result;
(5) correspondingly mating male silkworm chrysalis and female silkworm chrysalis in each breeding area according to the ranking of the male silkworm chrysalis and the female silkworm chrysalis, and laying eggs and producing seeds;
(6) repeating the five steps, and carrying out directional selection and seed production for three consecutive years to obtain the high-quality silkworm seeds.
Preferably, in the step (2), before the silkworm cocoons with uniform sizes are grouped, the selected silkworm cocoons are screened for health, yield and silkworm cocoon quality.
Preferably, the silk reeling result in the step (3) is judged according to three indexes of silk length, cleanliness and reelability of the silkworm cocoons.
Preferably, the breeding method of steps (1) to (5) is used every year after three-year targeted selection and mating.
Preferably, the live pupa reeling comprises the following steps: a. soaking silkworm cocoon in alkaline water at 32-36 deg.C for 15 min; b. repeatedly pinching the silkworm cocoons in alkaline water to fully soak the cocoon layers until the silkworm cocoons are filled with liquid; c. soaking for 10-15min, transferring the silkworm cocoon to clear water to find silk head, hanging the silk on a silk reeling machine, and recording silk length, knot-like and cutting-off times.
Preferably, the alkaline water comprises 2.5 parts by weight of sodium silicate, 0.5 part by weight of sodium hydroxide and 500 parts by weight of clear water.
The invention has the beneficial effects that: according to the invention, the breeding materials are optimized, so that the high-quality previous generation is combined, the high-quality next generation is produced, and the breeding materials with long cocoon silk and high purity can be obtained by repeating the optimization breeding, so that the quality of the silk is improved.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example (b):
the breeding method for improving the quality of the silk provided by the embodiment comprises the following steps:
(1) selecting 4 breeding areas for each silkworm variety, and randomly selecting 200 cocoons in each breeding area;
(2) screening the health, yield and quality of the silkworm cocoons from 400 silkworm cocoons randomly selected from each area, and then screening the screened silkworm cocoons again to leave the silkworm cocoons with uniform sizes for later use;
(3) soaking the silkworm cocoons screened in each area in alkaline water at the temperature of 32-36 ℃ for 15 min; then, the silkworm cocoons are lightly pinched by hands in alkaline water without damaging silkworm chrysalis, air in the cocoon cavities is let to escape and then loose hands, at the moment, because the pressure in the cocoon cavities is reduced, water is pressed into the cocoon cavities under atmospheric pressure, the process is repeated for several times until the silkworm cocoons are filled with liquid, and after the silkworm cocoons are subjected to water and gas exchange, the whole silkworm cocoons are fully wet, and the swelling of the internal, the middle and the external sericin is basically consistent; then soaking for 15min, transferring the silkworm cocoons to clear water to find silk heads, transferring the silkworm cocoons to a cocoon containing cup, hanging the silk heads on a silk reeling machine, recording the silk length, the type knot, the cleanliness, the reelability and the cutting frequency of each silkworm cocoon, labeling each silkworm cocoon, then loading the corresponding live silkworm chrysalis in a box and labeling the number of the corresponding silkworm cocoon;
(4) separating male and female silkworm chrysalis, and ranking the male and female silkworm chrysalis according to the reeling result;
(5) carrying out mating, oviposition and seed production on the male silkworm chrysalis and the female silkworm chrysalis in each breeding area according to the ranking of the male silkworm chrysalis and the female silkworm chrysalis, namely carrying out mating, oviposition and seed production on the first-ranked male silkworm chrysalis and the first-ranked female silkworm chrysalis in one breeding area, and realizing optimal and optimal combination;
(6) repeating the five steps, carrying out directional selection seed production for three consecutive years to obtain high-quality silkworm seeds, and ensuring the high quality of the bred varieties by adopting the breeding method from the step (1) to the step (5) every year after directional selection seed production for three years.
The alkaline water in the above examples was prepared by mixing 500ml of clear water with 2.5g of sodium silicate and 0.5g of sodium hydroxide.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the scope of the present invention.
Claims (6)
1. A breeding method for improving the quality of silk is characterized in that: the method comprises the following steps:
(1) selecting 2-4 breeding areas for each silkworm variety, and randomly selecting 180-250 silkworm cocoons in each breeding area;
(2) screening the silkworm cocoons randomly selected in each area, and leaving the silkworm cocoons with uniform sizes for later use;
(3) reeling live silkworm chrysalis on the silkworm cocoons selected in the step (2), recording the reeling result of each silkworm cocoon, labeling each silkworm cocoon, and then placing the corresponding live silkworm chrysalis in a box and labeling the number of the corresponding silkworm cocoon;
(4) separating male and female silkworm chrysalis, and ranking the male and female silkworm chrysalis according to the reeling result;
(5) correspondingly mating male silkworm chrysalis and female silkworm chrysalis in each breeding area according to the ranking of the male silkworm chrysalis and the female silkworm chrysalis, and laying eggs and producing seeds;
(6) repeating the five steps, and carrying out directional selection and seed production for three consecutive years to obtain the high-quality silkworm seeds.
2. A breeding method for improving the quality of silk according to claim 1, characterized in that: and (2) before grouping the silkworm cocoons with uniform sizes, screening the health, the yield and the quality of the selected silkworm cocoons.
3. A breeding method for improving the quality of silk according to claim 1, characterized in that: and (4) judging the reeling result in the step (3) according to three indexes of silk length, cleanliness and reelability of the silkworm cocoons.
4. A breeding method for improving the quality of silk according to claim 1, characterized in that: the breeding method from the step (1) to the step (5) is adopted every year after three-year directional selection and hybridization.
5. A breeding method for improving the quality of silk according to claim 1, characterized in that: the live pupa reeling comprises the following steps: a. soaking silkworm cocoon in alkaline water at 32-36 deg.C for 15 min; b. repeatedly pinching the silkworm cocoons in alkaline water to fully soak the cocoon layers until the silkworm cocoons are filled with liquid; c. soaking for 10-15min, transferring the silkworm cocoon to clear water to find silk head, hanging the silk on a silk reeling machine, and recording silk length, knot-like and cutting-off times.
6. A breeding method for improving the quality of silk according to claim 5, characterized in that: the alkaline water comprises 2.5 parts by weight of sodium silicate, 0.5 part by weight of sodium hydroxide and 500 parts by weight of clear water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326940.9A CN110959584A (en) | 2019-12-20 | 2019-12-20 | Breeding method for improving silk quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326940.9A CN110959584A (en) | 2019-12-20 | 2019-12-20 | Breeding method for improving silk quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110959584A true CN110959584A (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911326940.9A Pending CN110959584A (en) | 2019-12-20 | 2019-12-20 | Breeding method for improving silk quality |
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| Country | Link |
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| CN (1) | CN110959584A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405887A (en) * | 2011-11-04 | 2012-04-11 | 江苏科技大学 | Method for breeding silkworm variety with medium-fine denier |
| CN103938278A (en) * | 2014-04-23 | 2014-07-23 | 辽宁柞蚕丝绸科学研究院有限责任公司 | Silk-reeling technology by utilization of tussah fresh cocoon live pupae |
| CN107366024A (en) * | 2017-07-14 | 2017-11-21 | 合肥市聚丰制丝有限责任公司 | A kind of normal temperature silk reeling method |
-
2019
- 2019-12-20 CN CN201911326940.9A patent/CN110959584A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405887A (en) * | 2011-11-04 | 2012-04-11 | 江苏科技大学 | Method for breeding silkworm variety with medium-fine denier |
| CN103938278A (en) * | 2014-04-23 | 2014-07-23 | 辽宁柞蚕丝绸科学研究院有限责任公司 | Silk-reeling technology by utilization of tussah fresh cocoon live pupae |
| CN107366024A (en) * | 2017-07-14 | 2017-11-21 | 合肥市聚丰制丝有限责任公司 | A kind of normal temperature silk reeling method |
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Application publication date: 20200407 |