CN104904652B - A kind of method for improving sow pregnancy rate - Google Patents
A kind of method for improving sow pregnancy rate Download PDFInfo
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- CN104904652B CN104904652B CN201510261639.XA CN201510261639A CN104904652B CN 104904652 B CN104904652 B CN 104904652B CN 201510261639 A CN201510261639 A CN 201510261639A CN 104904652 B CN104904652 B CN 104904652B
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D19/00—Instruments or methods for reproduction or fertilisation
- A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D19/00—Instruments or methods for reproduction or fertilisation
- A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
- A61D19/022—Containers for animal semen, e.g. pouches or vials ; Methods or apparatus for treating or handling animal semen containers, e.g. filling or closing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D19/00—Instruments or methods for reproduction or fertilisation
- A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
- A61D19/027—Devices for injecting semen into animals, e.g. syringes, guns, probes
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- Reproductive Health (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Animal Husbandry (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The invention provides it is a kind of improve sow pregnancy rate method, including before breeding prepare, breed before seminal fluid collection and storage, the detection of oestrus with broad sow and breeding.According to the pregnancy rate of method sow provided by the invention more than 95%, the nonpregnant rate of insemination of sows substantially reduces, and the service life of sow extends, and the sow propagating system incidence of disease substantially reduces, and farrowing rate is stable.
Description
Technical field
The invention belongs to cultural technique field.More particularly, to a kind of method for improving sow pregnancy rate.
Background technology
The breeding of sow, namely becoming pregnant for sow have conclusive influence to live pig production, how further to improve mother
The pregnancy rate of pig is significant.
Target with inter-species is to be become pregnant with health with herd boar with the in good time breeding of sow for meeting kind body condition with improving
Rate, the daily management for sow of weaning should focus on heat stimulation.After wean, breast can expand because of galactosis, when
When galactopoiesis keeps balance with reabsorbing, suckling process will taper off.After wean 2-3 days, breast expansion is reduced, honeybee
Nest tissue starts to decompose, while FSH (follicular stimulating hormone) stimulates Oocyte Development will be quick into ovarian follicle, folliculus ovarii ligament
Increase and start to secrete estrogen, prepared to receive embryonated egg for uterus, and stimulate performance symptom of estrus, estrogen can promote
Enter the secretion of LH (lutropin), LH can make follicular development into ovum, and accelerate to ovulate.This stage is the important of boar management
Stage, effective breeding just determine the result of farrowing, and wean influences farrowing index to breeding interval, also influences litter size.It is pregnant
Wean of the management being pregnent with nursery phase to sow to interval of breeding has a major impact.
Pig farm sow is when being bred at present, because the heat situation for sow of weaning is poor or breeding means are unreasonable
Etc. reason so that first breeding or breeding again for Suprapubic arch sling are unsuccessful, long-term nonpregnant sow proportion
Greatly, added cost is fed, larger economic loss be present, additionally, due to that can not breed in time, the farrowing rate on pig farm can be by very
Big to influence, economic benefit is difficult to improve, and so as to be unfavorable for the development on pig farm, therefore, sow hair can greatly be transferred by being badly in need of one kind
The method that feelings are stimulated and bred in good time is successfully bred to primiparity and Suprapubic arch sling, improves the pregnancy rate of sow.
The content of the invention
The technical problem to be solved in the present invention is to overcome the shortcomings of existing sow cultural technique, there is provided one kind improve sow by
The method of pregnant rate.
Above-mentioned purpose of the present invention is achieved through the following technical solutions：
The invention provides it is a kind of improve sow pregnancy rate method, including before breeding prepare, breed before seminal fluid collection
And storage, the detection of oestrus with broad sow and breeding.
Preferably, the feeding management that becomes more meticulous for including nonpregnant sows is prepared before the breeding, sow mixes group and contact boar,
Ensure colony house space, temperature and illumination；
The in good time wean of the feeding management including sow in lactation of becoming more meticulous of the nonpregnant sows, the female swine rearing of wean and
Medicinal health-care；
The temperature is the minimum critical-temperature of sow in cement crack swinery when searching for food 32.5MJ digestible energies the same day
It it is 15 DEG C in the group support circle for having straw for 20 DEG C；
The illumination is 50lux, and with natural light, insufficient section is artificial lighting, to keep hour/day of light application time 16.
Preferably, the female swine rearing of the wean includes allowing wean sow free choice feeding, and supplements multidimensional, for wean 7
Sow out of heat more than it is driven to sports ground and put and looks into feelings boar and directly contact daily；
The medicinal health-care is to raise 2 tons of enlightening 0.5kg spices using precious, is watered 0.1 ton using 0.5L sweltering heats are clear, uses
0.5kg livestock and poultry 601 are watered 4 tons, using 0.2 ton of 0.25kg micro-capsule Zhu Puxin spices, to whole use before breeding after wean.
Preferably, the collection of seminal fluid and storage includes preparation before semen collection, semen collection, semen quality are analyzed before the breeding
And the seminal fluid that operation, packing and storage have diluted.
Preferably, the semen collection includes（1）Prepare semen collection cup, put breeder's bag and filter paper, be preheating to 37 degree；
（2）Preheated semen collection cup and semen collection articles for use and reagent are put into seminal fluid tote box, and take semen collection region；（3）By boar
The urine of preputial pouch squeezes out, and cleans preputial pouch with 0.1% liquor potassic permanganate, then rinsed well with distilled water；（4）Boar
Semen collection region is rushed to, then inducing boars climb up false sow；（5）Penis is grasped, lures boar that penis is all stretched out；
（6）Allow the liquid flow projected for the first time on the ground, the other hand distilled water flushing glans penis；（7）When the liquid of off-white color starts to flow
When out, start to be collected with semen collection cup, until boar stops；（8）The semen collection cup for having adopted seminal fluid is put into insulation tote box, no
Take away filter paper；（9）Insulation tote box is placed in transition window；（10）Allow boar to get off from false sow, not push away it
Or urge it；（11）Boar is come back column home, prepares next boar collection；
Seminal fluid is protected during collection, ensures that it is not influenceed by outside contamination or the temperature difference.
Preferably, the semen quality analysis and operation include（1）The volume of seminal fluid is calculated by weighing, puts beaker
Claim seminal fluid after zero setting again；（2）Observe the color and taste of seminal fluid；（3）Calculate sperm concentration, percent viability and motility rate；（4）Meter
The dilution quantity that the head number and needs of point counting dress add, ensure that the temperature for adding dilution is suitable with seminal fluid temperature, complete
Packing；
If dilution temperature drift, can be cooled with water, cool while stirred with thermometer, make temperature uniformly each
Position, first 2 times of dilutions, dilution are poured slowly into seminal fluid, are drained with glass bar, be gently mixed placement 1 ~ 2 minute during dilution,
Remaining seminal fluid is poured into again.
Preferably, the seminal fluid that the packing and storage have diluted includes（1）The semen diluent mixed is poured slowly into
It is preheated in 37 DEG C of aliquot, every part capacity is 80 ~ 100mL；（2）Ensure aliquot sealing, it is labelled, it is slowly cold
But；（3）Aliquot is placed when being cooled to normal temperature and preserved, to using seminal fluid after 4h, is preserved in 17 degree of constant temperature refrigerators；（4）Often
Aliquot is slowly rotated with the angle of 180 degree every 24h；（5）The motility rate or vigor of sampling check semen diluent daily；According to
Kind needs, and calculates the head number of needs, samples according to quantity.
Preferably, the detection of oestrus with broad sow includes the suitable examination feelings boar of selection, checks oestrus of sow symptom,
And make a record and mark.
Preferably, the breeding includes determining Inseminated time and carries out semen deposition；
It is described to determine that Inseminated time is（1）There are standing reaction 24h first time semen depositions in wean in 4 days, wean goes out in 5 ~ 6 days
Existing standing reaction 8 ~ 12h first time semen depositions；
（2）, there is standing reaction, immediately semen deposition in heat sow, anti-feelings sow and the oestrus sow of wean more than 7 days；Stream
Postpone next feelings phase no more than 18 days sows, the bad sow of body condition after production sow, farrowing and breed again；
（3）Second of 8 ~ 12h semen depositions after first time semen deposition；Also there is standing reaction then semen deposition third time in 8 ~ 12h of interval.
Preferably, the progress semen deposition step is（1）Semen diluent is checked, the vigor of sperm, which reaches more than 0.7, then to be made
With；（2）Examination feelings boar is rushed in face of sow swinery to be bred, allows boar with sow intimate contact；（3）With 0.1% potassium permanganate
Around solution cleaning sow external genital, root of the tail and buttocks, and dry, then it is clean with distilled water flushing, dry；（4）In vas deferens
Lubricating oil is coated on head, and hand can not contact 2/3 part before vas deferens；（5）Private parts is opened with handspring, it is light with the direction of 45 degree of angles up
Light insertion vas deferens, and in advance is rotated in an anti-clockwise direction, continue slowly to move ahead when feeling to have resistance, move forward and backward simultaneously,
Instruct to feel that vas deferens front end is locked；（6）Take semen deposition bottle to confirm boar kind, overbit, slowly rotate with mixed semen, will be defeated
Smart bottle inserts vas deferens, raises semen deposition bottle so that semen diluent passes through vas deferens and flowed into sow body；（7）Press sow
Back, when also remaining a small amount of seminal fluid in bottle, then pull out vas deferens, block the semen deposition mouth of pipe, semen deposition bottle is restored to the original state, then accesses
Vas deferens is untill seminal fluid is totally lost；（8）After semen deposition is totally lost, allows vas deferens to stop 30s again in vivo, then pull out vas deferens；
（9）Fill in breeding record.
Compared with prior art, the present invention has advantages below and beneficial effect：
According to the pregnancy rate of method sow provided by the invention more than 95%, the nonpregnant rate of insemination of sows substantially reduces, and
The service life of sow extends, and the sow propagating system incidence of disease substantially reduces, and the farrowing rate of sow is stable.
Embodiment
Further illustrate the present invention below in conjunction with specific embodiment, but embodiment the present invention is not done it is any type of
Limit.Unless stated otherwise, the reagent of the invention used, method and apparatus is the art conventional reagent, methods and apparatus.
Unless stated otherwise, agents useful for same and material of the present invention are purchased in market.
Embodiment 1
First, the preparation of sow before breeding
（One）, ensure wean sow in good time and successfully breed
1st, nursing period：Wean can be extended to breeding interval by shortening nursing period.
2nd, nursing period raises：Nursing period body weight loss crosses conference and extends wean to interval of breeding, therefore is needed in later lactation
The lactation diet for the high nutrition concentration that largely to search for food.
3rd, the feed intake before wean to breeding：Feed intake high energy reduces wean to breeding interval, and increases ovulation amount（Especially
It is first farrowing sow）, improve pregnancy rate.
4th, boar is contacted：Sow should be supported and be contacted near boar or daily with boar.
5th, group is mixed：Increase stress stimulation but be likely to result in some damages.
6th, colony house：There are enough spaces during group support in order to oestrus of sow.
7th, temperature：During same day feeding 32.5MJ digestible energies, the minimum critical-temperature of sow is 20 in cement crack swinery
DEG C, it is 15 DEG C in the group support circle for having straw, low temperature can suppress heat.
8th, illumination：In fact, 50lux illumination is needed with broad sow（It is advisable so that newspaper can be seen clearly）, as far as possible with natural light, no
Foot is divided into artificial lighting, to keep hour/day of light application time 16.（When illumination does not often reach required illumination during winter
Between）.
（Two）, nonpregnant sows（Sow after wean）Become more meticulous feeding management technique
1st, in order to interrupt lactation, wean is a few days ago It is not necessary to material reducing feeding.
2nd, the purpose raised after sow wean is to allow sow to produce healthy ovum as much as possible, high-caliber feeding
More healthy ovum is produced, therefore the sow free choice feeding that weans, or wet-mixing material will be helpful to increase feeding.
3rd, wean sow free choice feeding can also make the sow of body condition difference（Particularly first farrowing sow）Recover body condition and contribute to
Stimulate heat.
4th, multidimensional should be supplemented by weaning when sow enters breeding room.
5th, sports ground should be driven to daily and is put for more than 7 days sows out of heat of wean look into feelings boar and directly connect
Touch.
6th, care procedure：
Purpose：Postpartum sow is recovered body condition rapidly, reduction stress, promote follicular development, normal ovulation.
Method：
（1）Treasured raises enlightening：Treasured raises 1 bag of enlightening（500g）2 tons of spice, whole process use.（Suppress harmful bacteria and spoilage organisms in enteron aisle
Growth and breeding, enteric flora disturbance is corrected, reduces the generation of enterotoxin, it is a large amount of to reduce pig farm ammonia and stink.Reduce mould
Toxin poisoning.Sow false pregnancy is reduced, in matching somebody with somebody not repeatly.Ensure ovarian follicle healthy development and normal ovulation.）
（2）Hot clear+livestock and poultry 601：Hot clear 1 bottle（500ml）200 jin are watered, 601 1 bags of livestock and poultry（500g）It is watered 4 tons
Water, whole process use.（Removing machine precursor virus, replenishing vitamins promote follicular development）
（3）Micro-capsule Zhu Puxin：1 bag（250g）Begin to use after 200 kilograms of wean of spice, whole process uses.（Advantage removes son
Palace, breast, intravaginal bacterium, prevent bacterial hysteritis from causing breeding to fail）
2nd, the collection and storage of seminal fluid before breeding
（One）, preparation before semen collection
The preparation of the previous hour semen diluent of semen collection：Laboratory worker must put on work clothes, clean all
Workbench, metope and ground, keep interior there is no dust, the temperature in laboratory is scheduled between 22-24 degree.Use dilutes
The water of liquid must be pure, without any impurity, most handy distilled water configuration.The dilution powder of high quality must be used during semen diluent
And pure water, different semen diluents is matched somebody with somebody according to the semen storage time, it is short-acting：Used up after having diluted seminal fluid in 24 hours, in
Effect：Used up after having diluted seminal fluid in 4 days, it is long-acting：Used up after having diluted seminal fluid in 8 days.1 bag dilution powder（About 50 grams, according to
The ratio of dilution powder uses）Pour into 1 liter of aquae destillata, get out enough dilution progress insulating boxs and be preheating to 37 °C.All
Semen collection vessel be placed in preheating cabinet, be preheating to 37 degree.Get out detection device：Constant temperature objective table, microscope, spermatozoon count
Device, minute book, identification label, pen etc..
（Two）, semen collection
1st, semen collection cup is got out, puts breeder's bag and filter paper, is preheating to 37 degree.
2nd, the thing that preheated semen collection cup and semen collection are used（2 pairs of semen collection gloves, face defend paper, clean towel,）Put
In the seminal fluid tote box for entering insulation, also 0.1% potassium permanganate, distilled water, washing bottle, semen collection region is then taken.
3rd, semen collection cup is taken out from seminal fluid tote box, is placed on a safety and the place easily taken.
4th, double gloves is put on, the urine of preputial pouch is squeezed out, cleans preputial pouch with 0.1% liquor potassic permanganate, then use
Distilled water is rinsed well, then uses towel.
5th, boar is rushed to semen collection region, then inducing boars climb up false sow.
6th, outer layer gloves are taken off, grasp penis, lure boar that penis is all stretched.
7th, the liquid flow projected for the first time is allowed the other hand distilled water flushing glans penis, then to be dried on the ground with face-cloth.
8th, when the liquid of butyrous white, which is begun to flow out, to be come, start to be collected with semen collection cup.
9th, the collection of seminal fluid typically point 1 to 3 stages, the transparent seminal fluid in midway can not be collected,（Winter can collect, and keep away
It is too fast to exempt from the decline of seminal fluid temperature）.Collection stops completely until boar.
10th, the semen collection cup for having adopted seminal fluid is put into insulation tote box at once, does not take away filter paper.
11st, insulation tote box is placed in transition window（That is the Transfer Window in laboratory and semen collection region）, shut window
Door.
12., allow boar to get off from false sow, not push away it or urge it.
13rd, boar is come back column home, prepares next boar collection.
Points for attention：1. reducing the pollution of seminal fluid foeign element, many seminal fluid just pollute when gathering from the beginning, such as empty
Dust water and air in gas, the ash bag in preputial pouch, skin liquid and urine, it can all destroy the quality of seminal fluid.So we must
Seminal fluid must be protected in collection, not influenceed as far as possible by external substance or difference variation.
(3), semen quality analysis and operation
The seminal fluid adopted will carry out the analysis of quality before dilution, and various data reach the seminal fluid of the requirement of lowest quality
It can carry out carrying out next step operation, not reach the processing that the seminal fluid of minimum requirements is abandoned.
Operation：
1st, the filter paper for collecting smart cup is taken away, the breeder's bag for collecting smart cup is transplanted in preheated beaker together and sticks mark
Label.
2., calculate by weighing the volume of seminal fluid, claim seminal fluid again after putting beaker zero setting.
3rd, the color and taste of seminal fluid are observed, milky foreign matter and abnormal taste does not occur without foot-powder colour band saline taste.
4th, the concentration of sperm typically calculates how many hundred million essence in every 1 milliliter of former seminal fluid with special sperm count device
Son, every milliliter of scope are 8,000 ten thousand -8 hundred million sperms.
5th, the vigor of sperm is general estimates the percentage of sperm motility with 100 times of microscope, has work more than more than 60%
Power is considered normal.
6th, the motility rate of sperm is typically observed with 400 times of microscope, drips coloring agent plus one, more than more than 80% into
Motility rate is considered normal, not including defective sperm.
7th, the head part for calculating packing calculates the head number that can be dispensed with the calculation formula of standard and needs to add dilution
Quantity, such as：1. number #563.2. capacity 122ML.3. observe OK OK.4. every milliliter of density 3.5 hundred million.5. vigor 85%.6.
Motility rate 95%.Head number=122/13.5=9.Total capacity=9x100=900ML.Dilution=900-122=778ML of addition.（Note：
Contain sperm more than 4,000,000,000 in every bottle of 80-100 milliliter seminal fluid）
8th, the temperature for adding dilution seminal fluid and dilution must be equal to prevent destruction of the difference variation to sperm.If
It dilution temperature drift, can be cooled with water, cooled while stirred with thermometer, allow temperature uniformly each position, it is seen that
The dilution of cooling is no more than 0.5 DEG C with the temperature of seminal fluid.Dilution, is poured slowly into seminal fluid by first 2 times of dilutions when dilution
In, drained with glass bar, be gently mixed and place 1-2 minutes, then pour into remaining seminal fluid.
(4), dispense and store the seminal fluid diluted
1st, very long pour into of the seminal fluid mixed is preheated in 37 DEG C of semen deposition bottle or seminal fluid pipe/bag, every part capacity is
80 to 100 milliliters.
2nd, cover semen deposition bottle cap or seal the mouth of seminal fluid pipe/bag, it is labelled, slowly cool down.
3rd, the seminal fluid to just being used after 4 hours, it is necessary to be put into 17 degree of constant temperature refrigerator and preserve.（Pay attention to：Put constant temperature into
The seminal fluid packing that case preserves slowly is cooled to normal temperature, it is impossible to directly puts insulating box after packing into, avoids rapid cooling from influenceing seminal fluid
Quality.）
4th, during storage, sperm can precipitate down, every the very long rotation semen deposition of 24 hours angles with 180 degree
Bottle/pipe/bag.
5th, the seminal fluid gathered each time must be sampled daily, checks its vigor or motility rate, with constant temperature objective table handle
Slide is heated to 37 degree.
6th, the sow quantity of the daily semen deposition required for, calculates required seminal fluid head number（Pay attention to：Simply wanting
Ability is taken out seminal fluid from refrigerator during semen deposition, if exhaustless seminal fluid is put back to refrigerator again will destroy the quality of seminal fluid）.
When the 7th, needing to use seminal fluid, the seminal fluid dispensed is taken out from constant temperature refrigerator, it can be allowed slowly to heat up.
8th, the seminal fluid dispensed is put into insulation tote box, is sent to breeding region.
The detection of oestrus of sow and breeding method when the 3, breeding
Replacement gilt production sow wean daystart, looked into feelings twice daily after 150 days（Morning feeding is small half
When after and afternoon at dusk）.Boar is allowed to be contacted with sow, Suprapubic arch sling 1 to 3 minutes, standby 15 to 20 minutes.Select in afternoon in the morning
Different boars carries out looking into feelings.
（One）, detection of oestrus
1st, the selection of feelings boar is tried
1., male taste it is more again better.
2., can talk, saliva is more, and contains pheromone.
3., know how to do before mounting sow, have with sow talk desire.
4., have forbearing and conciliatory property-when can not allow it breed when will not feel indignation.
5., it is gentle and have patience-know how and sow " work " and be unlikely to the race of the sow place of arriving on time.
6., good management-when you need, it relatively easily can be rushed to another column from a column.
7., reliability-know daily and sow will carry out a series of work.
8., enthusiasm-when find other end sow again heat when, not think that darg has completed.
9., personality it is good-will not attack breeding person, training is good-have reliable essence and feature.
2nd, the symptom of oestrus of sow
1., nervous symptoms：Sow is sensitive to peripheral ring border, gazes around, and once there is sound new line, prick ear is harked.It is flat
When have enough after like sleep sow, often walked up and down after heat in circle, or often station in circle door mouth.Usually emit a groan, eat
It is intended to depressed, irritable uneasy, ear is upright, stings hutch bar, stings and faces column sow, is ready close to boar or mounting other sows.
2., external genital change.Proestrus group vaginal orifice flush swelling, replacement gilt swelling degree is obvious, Suprapubic arch sling swelling
Degree unobvious.Vagina gradually flows out thin, white mucus, and Suprapubic arch sling is obvious.Vaginal mucosa color turns dark red by pale red
Become again pale red.
3., receive boar mounting：Oestrus of sow mid-term, receive boar mounting.
4., pressure back reflection：Breeding person carries on the back waist with hand pressing sow, and heat sow often diverge by two back legs, stands transfixed to the ground,
Tail is upwarped, and large white sow have sharp ears is slightly upwarped to back, the long white basal part of the ear, and Duroc ear is slightly tilted upward.Suprapubic arch sling
These performances will continue 2~3 days, and these performances of replacement gilt will continue 1~2 day.
Sow will appear from the above partially or fully symptom in during oestrus.
3rd, heat detection records
Including heat sow swinery number, kind, overbit, parity, wean date, estrus time（Replacement gilt will look into heat record
Table）Etc. being shown in Table.
4th, heat detection marks
Write estrus time with marking pen at the sow back of heat, represented in the morning with A, and represented in the afternoon with P.Such as No. 2
Represent that No. 2 afternoons are represented with 2P with 2A in the morning.
（Two）, breeding
1st, Inseminated time is determined
1., wean there is standing reaction first time semen deposition in 24 hour in 4 days, there is 8-12 between standing reaction in 5-6 days in wean
Hour first time semen deposition.
2., replacement gilt wean heat sow, anti-feelings sow and the oestrus sow of more than 7 days, there is standing reaction, immediately
Semen deposition：Bred again no more than 18 days sows, body condition bad postponement next feelings phase after miscarriage sow, farrowing.
3., after first time semen deposition between 8-12 hours semen deposition the 2nd time.Being spaced 8-12 hours again also there is standing reaction then semen deposition
For the third time.
（Three）, semen deposition
1st, the inspection of seminal fluid：Take out seminal fluid from 17 °C of insulating boxs, gently shake up, with sterilized dropper take 1 drop seminal fluid in
On warmed-up slide, it is placed on 37 °C of temperature-constant plate, the vigor of sperm is detected with microscope, vigor reaches more than 0.7 then
It can use.
2nd, examination feelings boar is rushed in face of sow swinery to be bred, allows boar with sow nose to nose intimate contact.
3rd, cleaned with 0.1% liquor potassic permanganate around sow external genital, root of the tail and buttocks, use towel：With distillation
Water is rinsed well, is dried with face tissue.
4th, disposable vas deferens is taken out from polybag, lubricating oil is coated in semen deposition tube head.Hand can not contact vas deferens
Preceding 2/3 part.
5th, private parts is opened with handspring, vas deferens is gently inserted with the direction of 45 degree of angles up, and in before rotating in an anti-clockwise direction
Enter when feeling to have resistance, continue slowly to move ahead, move forward and backward simultaneously, instruct to feel that vas deferens front end is locked.
6th, take out semen deposition bottle from insulation tote box and confirm boar kind, overbit, slowly rotate with mixed semen, use scissors
Cut the top of lid.
7th, semen deposition bottle is inserted vas deferens, raises semen deposition bottle as far as possible so that seminal fluid passes through vas deferens and flows into sow body
It is interior.
8th, the back of sow is pressed, the natural contractile function of heat sow will be drawn onto seminal fluid in vivo.When also surplus few in bottle
When measuring seminal fluid, then vas deferens is pulled out, left hand blocks the semen deposition mouth of pipe with thumb, and the right hand restores to the original state semen deposition bottle, then accesses semen deposition
Guan Shang.Bottleneck gently extrudes downwards again, untill seminal fluid is totally lost.
9th, after the completion of semen deposition process, allow vas deferens to stop again in vivo 30 seconds, then gently effectively pull out semen deposition again
Pipe.
10th, breeding record is filled in.
According to the pregnancy rate of method sow provided by the invention more than 95%, the nonpregnant rate of insemination of sows substantially reduces, and
The service life of sow extends, and the sow propagating system incidence of disease substantially reduces, and farrowing rate is stable.
Claims (3)
- A kind of 1. method for improving sow pregnancy rate, it is characterised in that include the collection and storage of seminal fluid before preparing before breeding, breeding Deposit, the detection of oestrus with broad sow and breeding；Prepare the feeding management that becomes more meticulous for including nonpregnant sows before the breeding, sow mixes Group and contact boar, ensure colony house space, temperature and illumination；The feeding management that becomes more meticulous of the nonpregnant sows includes the in good time wean of sow in lactation, the female swine rearing of wean and medicine Health care；The temperature is when searching for food 32.5MJ digestible energies the same day, and the minimum critical-temperature of sow is 20 in cement crack swinery DEG C, it is 15 DEG C in the group support circle for having straw；The illumination is 50lux, and with natural light, insufficient section is artificial lighting, to keep hour/day of light application time 16；It is described Female swine rearing of weaning includes allowing wean sow free choice feeding, and supplements multidimensional, every for more than 7 days sows out of heat of wean It is driven to sports ground and put and looks into feelings boar and directly contact；The medicinal health-care is to raise 2 tons of enlightening 0.5kg spices using precious, is watered 0.1 ton clearly using 0.5L is hot, is raiseeed using 0.5kg Fowl 601 is watered 4 tons, using 0.2 ton of 0.25kg micro-capsule Zhu Puxin spices, to whole use before breeding after wean.
- 2. the method according to claim 1 for improving sow pregnancy rate, it is characterised in that the collection of seminal fluid before the breeding And storage includes preparation, semen collection, the seminal fluid that semen quality is analyzed and operation, packing and storage have diluted before semen collection；It is described Semen collection includes（1）Prepare semen collection cup, put breeder's bag and filter paper, be preheating to 37 degree；（2）Preheated semen collection cup and Semen collection articles for use and reagent are put into seminal fluid tote box, and take semen collection region；（3）The urine of boar preputial pouch is squeezed out, used 0.1% liquor potassic permanganate cleaning preputial pouch, then rinsed well with distilled water；（4）Boar is rushed to semen collection region, then lured Lead boar and climb up false sow；（5）Penis is grasped, lures boar that penis is all stretched out；（6）Allow for the first time project liquid Flow on the ground, the other hand distilled water flushing glans penis；（7）When the liquid of off-white color, which is begun to flow out, to be come, start to be received with semen collection cup Collection, until boar stops；（8）The semen collection cup for having adopted seminal fluid is put into insulation tote box, not take away filter paper；（9）Guarantor Warm tote box is placed in transition window；（10）Allow boar to get off from false sow, not push away it or urge it；（11）Boar is come back Column home, prepare next boar collection；Seminal fluid is protected during collection, ensures that it is not influenceed by outside contamination or the temperature difference；The semen quality analysis and operation include（1） The volume of seminal fluid is calculated by weighing, claims seminal fluid again after putting beaker zero setting；（2）Observe the color and taste of seminal fluid；（3）Meter Calculate sperm concentration, percent viability and motility rate；（4）The dilution quantity that the head number and needs of calculating packing add, ensures to add It is suitable with seminal fluid temperature to enter the temperature of dilution, completes packing；If dilution temperature drift, is cooled with water, cool while stirred with thermometer, allow temperature uniformly each position, it is dilute First 2 times of dilutions, dilution are poured slowly into seminal fluid, are drained with glass bar, be gently mixed placement 1 ~ 2 minute, then pour into when releasing Remaining seminal fluid；The seminal fluid that the packing and storage have diluted includes（1）The semen diluent mixed is poured slowly into preheating Into 37 DEG C of semen deposition bottle, every part capacity is 80 ~ 100mL；（2）Ensure semen deposition bottle sealability, it is labelled, slowly cool down； （3）Semen deposition bottle is placed when being cooled to normal temperature and preserved, to using seminal fluid after 4h, is preserved in 17 degree of constant temperature refrigerators；（4）Every 24h slowly rotates semen deposition bottle with the angle of 180 degree；（5）The motility rate or vigor of sampling check semen diluent daily；According to breeding Need, calculate the head number of needs, sample according to quantity；The detection of oestrus with broad sow include the suitable examination feelings boar of selection, Oestrus of sow symptom is checked, and makes a record and marks；The breeding includes determining Inseminated time and carries out semen deposition；It is described to determine that Inseminated time is（1）There is standing reaction in 4 days in wean, and first time semen deposition after 24h, wean goes out in 5 ~ 6 days Existing standing reaction, first time semen deposition after 8 ~ 12h；（2）, there is standing reaction, immediately semen deposition in heat sow, anti-feelings sow and the oestrus sow of wean more than 7 days；Miscarriage is female Postpone next feelings phase no more than 18 days sows, the bad sow of body condition after pig, farrowing and breed again；（3）Second of 8 ~ 12h semen depositions after first time semen deposition；Also there is standing reaction then semen deposition third time in 8 ~ 12h of interval.
- 3. it is according to claim 2 improve sow pregnancy rate method, it is characterised in that it is described progress semen deposition step be （1）Semen diluent is checked, the vigor of sperm reaches more than 0.7 and then used；（2）Examination feelings boar is rushed into sow swinery to be bred In front, boar is allowed with sow intimate contact；（3）Cleaned with 0.1% liquor potassic permanganate around sow external genital, root of the tail and buttocks, And dry, then it is clean with distilled water flushing, dry；（4）Lubricating oil is coated in semen deposition tube head, hand can not be contacted 2/ before vas deferens 3 parts；（5）Private parts is opened with handspring, vas deferens is gently inserted with the direction of 45 degree of angles up, and in before rotating in an anti-clockwise direction Enter, continue slowly to move ahead when feeling to have resistance, move forward and backward simultaneously, until feeling that vas deferens front end is locked；（6）Take semen deposition Bottle confirms boar kind, overbit, slowly rotates with mixed semen, and semen deposition bottle is inserted into vas deferens, raises semen deposition bottle so that seminal fluid Dilution passes through vas deferens and flowed into sow body；（7）The back of sow is pressed, when also remaining a small amount of seminal fluid in bottle, then is pulled out Fall vas deferens, block the semen deposition mouth of pipe, semen deposition bottle is restored to the original state, then access vas deferens untill seminal fluid is totally lost；（8）Semen deposition is defeated After complete, allow vas deferens to stop 30s again in vivo, then pull out vas deferens；（9）Fill in breeding record.
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| CN106359268A (en) * | 2016-08-30 | 2017-02-01 | 界首市颖南万福家庭农场 | Method for cultivating sow in mating period |
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