(1) The standard of breeding time The breeding time is generally started in early March. The mating season ends approximately in the middle and late March. During the breeding period, some females only receive one mating and the re-arrangement is more difficult than the initial allocation. For this purpose, when the initial allocation is made, 70% to 80% of the entire female genitalia must be examined to reach the peak of estrus. Can start breeding. Therefore, correctly grasping the estrus identification has a certain effect on reducing empty space.
(2) Breeding methods The public estrus is generally continuous and has a strong sex drive and can be mated at any time. The estrus of females has periodic changes. Most females have 3-4 estrus cycles. Each estrus has a duration of 1-3 days and the estrus interval is 7-11 days. For the early estrus, and does not accept the continuous mating mother, after the initial allocation interval 7 to 11 days to re-equip, this method is called cycle re-allocation. In the season of mating, the estrus of the breeding season reaches the mother-in-law of the first match, and the second day or the third day of reconstitution. This method is called continuous reconstitution. Most emaciated estruss are normal, and they can be mated twice in succession between 7 and 11 days after the initial ration. This method is called continuous after the first cycle. It is also possible to mate twice in succession and to mate once more in 7-11 days. This method is called continuous first cycle. No matter which kind of breeding method is adopted, it must be used flexibly according to the specific circumstances of the mother's family.
In order to master the mating work, the mating is completed at an appropriate period. Generally, the mating work is divided into three stages, namely, initial allocation, compounding and replacement. The initial allocation (in early March) requires that most females reach an initial allocation during this period. In the initial allocation stage, attention should be paid to breeding training for young males and the semen quality of public funds must be checked. The examination method is to use a glass slide to pick up semen from the vulva of the initial mother's cockroach, or use a glass rod to insert the mother's cockroach into the vagina at 2-3 cm, and then observe the density and shape of the sperm under a microscope at 200 times. And vitality. After 3-4 inspections, if there is no sperm, the corresponding male cockroach can no longer be used for breeding.
The compounding (mid-March) requires that the majority of females in the herd group complete the compounding twice during this period and end breeding. The initial allocation and reconstitution of the females who did not carry out the initial allocation are complete.
Supplements (before and after March 20th), continue to complete the compounding, the mother-female who still has heat after reconstitution should be supplemented.
During the breeding period of the entire flock, it is necessary to follow the pre-breeding plan to prevent unscrupulous, unplanned, and unlawful cross-breeding, resulting in undesirable consequences such as a lot of freedom and low birth rate.
(3) Breeding Techniques 1 Estrus Identification After the mother’s estrus was identified, her appetite decreased and her excitement was active. She often walked around the cage frequently, her temperament became docile, she was more honest in her capture, and she uttered a “click†sound from time to time. The male deer showed an increase in testicles, a sagging testis capsule, and elasticity. In the practice of raising fish, in addition to observing the performance of blisters, it is mainly based on the changes in the vulva of the mother lice. The females that are not in general heat are trapped and the pubic hair is bundled. In the early stages of estrus, the mother-in-law was separated from the pubic hair and the vulva opened slightly. During the estrus period, the pubic hairs of the mother's beaks are obviously lodged on both sides. The vulva is swollen and the valgus is prominent. The valgus is prominent, and some are divided into several petals. They are pink or white and wet with mucus. At the end of the estrus, the female genitals contracted and wrinkled, and the vulva was closed and gray. The best symptoms during the peak period are: The female genitals are slightly wrinkled on the vulva, and the valgus is not as good as the initial valgus, and some are grayish red and mucus. Although a few female lice are estrus, the changes in the genitals are not obvious. Such female lice are called hidden estrus. This type of female cubs are mainly based on appearance observation and on the trial situation to determine whether to breed.
2 put right
a. Putting time on the water is generally on a cold sunny day, and its sexual desire is strong. At this time, it is easy to reach a match. Therefore, in the first half of the breeding period, the pair can be fed first, and the time can be arranged between 8-10 am and 2-4 pm. During the second half of the breeding season, due to the increasing of the weather, the animals can be fed first and then fed back. The time is usually between 6-9 am and 3-5 pm. Feeding and releasing should be separated by 1 hour, so that the quail has a period of time to digest food. When the pair is released, the food box should be withdrawn, and it cannot be fed on the side.
b. Putting on the right method You can use your hand to grasp the mother's casket for the last estrus identification. After checking the changes in the genitals and confirming that the lice are in good estrus, you can tease the mother lice for a minute or so. If the public embarrassment screams an urgency call, when there is a courtship performance, grab the neck of the female pheasant with one hand and grasp the tail with the other hand. Neck the neck, then one hand to release the neck, the other hand slowly relax the tail as the mother's cubs move. The purpose of doing so is to reduce the public’s fatigue by capturing the mother-in-law so that it can be successfully dealt with. However, the male prostitute with a strong breeding ability and the very gentle mother-in-law can let him freely capture.
3 Precautions in Breeding First, when catching female cubs for estrus identification and release, they must grasp the neck and tail of the female fleas and do not grasp the chest and abdomen to avoid damage to the internal organs.
The second is that the number of trials with the mother-in-law and the male-in-law should not be too frequent in order to prevent panic or bite and cause a mother-mother mismatch. If two days of consecutive trials do not accept mating females, they should be released 1-2 days later.
The third is to correctly identify the real match and false match. The performance of the real match is that the male and female parents are generally very honest and quiet. When ejaculating, the two males have Mimi, and the hips are forced to shake forward and the mother's cry is buzzing. After opening the breeding pair, the vulva of the female fleas is highly congested, swollen, reddened and pubic hair is wet. The public's thirsty desire to drink, often licking their genitals, then enter the rest room. Although the fake male cockroach appears to cross the mother-in-law and the mating position, the penis of the male cockroach is not inserted into the vagina of the mother's cockroach. When the fake is fitted, the male's hindquarters do not bend so much that they can't stand the movement of the mother's jealousy. The penis is exposed outside the female's body. The spirit is not concentrated, the two eyes send the thief, no ejaculation action, and a little intimidation is right. Open the right and then grab the mother and observe the vulva, and the vulva is not congested.
The fourth is careful observation, safe breeding, to prevent water damage. Because of the varying lengths of otters mating, the shorter ones are a few minutes and the older ones are several hours, the majority being 0.5-1 hours. After opening, the male and female cockroaches often bite each other, so the female cockroach should be returned to the original cage in time. At the same time, due to the thirst after mating, the public should wait for a while before supplying drinking water to ensure health. Because the estrus identification is inaccurate, or because of improper choice of spouse, the male and female do not like each other. In this case, pay attention to the public and mother's fight bite injury.
The fifth is to do a good job in breeding records. After determining the match, the relevant data should be entered in the seed registration form for examination.
Sixth, do a good job in semen quality inspection. The quality of the semen has a direct impact on the reproduction of the mother quail. The average normal male ejaculatory volume is once 0.102 0.066 ml. Every 1 milliliter of semen contained 54,652,359 spermatozoa (1400-8600), and the average sperm length was 32.815.7 micrometers. Semen quality inspection methods can be performed with a 200-fold microscope. Use a glass rod to insert 2-3 cm into the vagina of the female cockroach just after mating. A small amount of semen is smeared. The semen is applied to the slide glass for microscopic examination, and the viability, shape, and density of motile sperm and spermatozoa are visually observed. If there are many spermatozoa and most of them are in a straight line motion, the shape is like a mole, the head is elliptical, and the tail is slender and even, indicating that the sperm is normal. If the microscopic examination has no sperm, dead spermatozoa, few sperm counts, or abnormal spermatozoa, it is a circular motion. If the sperm head is round and the tail is thick and straight, the semen quality is poor. If several inspections are the same, this kind of public money cannot be used for breeding. The quality inspection of semen should be performed indoors at room temperature of 37-39°C. Below or above this temperature range, the quality of the sperm will be affected.
Seven is the correct use of sex hormones. From the practice of leech breeding, it is possible to prove that any mother who has prematurely used sex hormones to carry out aphrodisiac is more likely to have a sexual desire for sexual advancement and breeding, but the birth rate is extremely low. Therefore, in order to use sex hormones, female hormones that are still not in heat during estrus (in mid-March) can be used. The dosage is 170 units or pregnant horse serum gonadotropins, and the dosage is 150 units each. After injection, 3-7 days to put it right.
(2) Breeding methods The public estrus is generally continuous and has a strong sex drive and can be mated at any time. The estrus of females has periodic changes. Most females have 3-4 estrus cycles. Each estrus has a duration of 1-3 days and the estrus interval is 7-11 days. For the early estrus, and does not accept the continuous mating mother, after the initial allocation interval 7 to 11 days to re-equip, this method is called cycle re-allocation. In the season of mating, the estrus of the breeding season reaches the mother-in-law of the first match, and the second day or the third day of reconstitution. This method is called continuous reconstitution. Most emaciated estruss are normal, and they can be mated twice in succession between 7 and 11 days after the initial ration. This method is called continuous after the first cycle. It is also possible to mate twice in succession and to mate once more in 7-11 days. This method is called continuous first cycle. No matter which kind of breeding method is adopted, it must be used flexibly according to the specific circumstances of the mother's family.
In order to master the mating work, the mating is completed at an appropriate period. Generally, the mating work is divided into three stages, namely, initial allocation, compounding and replacement. The initial allocation (in early March) requires that most females reach an initial allocation during this period. In the initial allocation stage, attention should be paid to breeding training for young males and the semen quality of public funds must be checked. The examination method is to use a glass slide to pick up semen from the vulva of the initial mother's cockroach, or use a glass rod to insert the mother's cockroach into the vagina at 2-3 cm, and then observe the density and shape of the sperm under a microscope at 200 times. And vitality. After 3-4 inspections, if there is no sperm, the corresponding male cockroach can no longer be used for breeding.
The compounding (mid-March) requires that the majority of females in the herd group complete the compounding twice during this period and end breeding. The initial allocation and reconstitution of the females who did not carry out the initial allocation are complete.
Supplements (before and after March 20th), continue to complete the compounding, the mother-female who still has heat after reconstitution should be supplemented.
During the breeding period of the entire flock, it is necessary to follow the pre-breeding plan to prevent unscrupulous, unplanned, and unlawful cross-breeding, resulting in undesirable consequences such as a lot of freedom and low birth rate.
(3) Breeding Techniques 1 Estrus Identification After the mother’s estrus was identified, her appetite decreased and her excitement was active. She often walked around the cage frequently, her temperament became docile, she was more honest in her capture, and she uttered a “click†sound from time to time. The male deer showed an increase in testicles, a sagging testis capsule, and elasticity. In the practice of raising fish, in addition to observing the performance of blisters, it is mainly based on the changes in the vulva of the mother lice. The females that are not in general heat are trapped and the pubic hair is bundled. In the early stages of estrus, the mother-in-law was separated from the pubic hair and the vulva opened slightly. During the estrus period, the pubic hairs of the mother's beaks are obviously lodged on both sides. The vulva is swollen and the valgus is prominent. The valgus is prominent, and some are divided into several petals. They are pink or white and wet with mucus. At the end of the estrus, the female genitals contracted and wrinkled, and the vulva was closed and gray. The best symptoms during the peak period are: The female genitals are slightly wrinkled on the vulva, and the valgus is not as good as the initial valgus, and some are grayish red and mucus. Although a few female lice are estrus, the changes in the genitals are not obvious. Such female lice are called hidden estrus. This type of female cubs are mainly based on appearance observation and on the trial situation to determine whether to breed.
2 put right
a. Putting time on the water is generally on a cold sunny day, and its sexual desire is strong. At this time, it is easy to reach a match. Therefore, in the first half of the breeding period, the pair can be fed first, and the time can be arranged between 8-10 am and 2-4 pm. During the second half of the breeding season, due to the increasing of the weather, the animals can be fed first and then fed back. The time is usually between 6-9 am and 3-5 pm. Feeding and releasing should be separated by 1 hour, so that the quail has a period of time to digest food. When the pair is released, the food box should be withdrawn, and it cannot be fed on the side.
b. Putting on the right method You can use your hand to grasp the mother's casket for the last estrus identification. After checking the changes in the genitals and confirming that the lice are in good estrus, you can tease the mother lice for a minute or so. If the public embarrassment screams an urgency call, when there is a courtship performance, grab the neck of the female pheasant with one hand and grasp the tail with the other hand. Neck the neck, then one hand to release the neck, the other hand slowly relax the tail as the mother's cubs move. The purpose of doing so is to reduce the public’s fatigue by capturing the mother-in-law so that it can be successfully dealt with. However, the male prostitute with a strong breeding ability and the very gentle mother-in-law can let him freely capture.
3 Precautions in Breeding First, when catching female cubs for estrus identification and release, they must grasp the neck and tail of the female fleas and do not grasp the chest and abdomen to avoid damage to the internal organs.
The second is that the number of trials with the mother-in-law and the male-in-law should not be too frequent in order to prevent panic or bite and cause a mother-mother mismatch. If two days of consecutive trials do not accept mating females, they should be released 1-2 days later.
The third is to correctly identify the real match and false match. The performance of the real match is that the male and female parents are generally very honest and quiet. When ejaculating, the two males have Mimi, and the hips are forced to shake forward and the mother's cry is buzzing. After opening the breeding pair, the vulva of the female fleas is highly congested, swollen, reddened and pubic hair is wet. The public's thirsty desire to drink, often licking their genitals, then enter the rest room. Although the fake male cockroach appears to cross the mother-in-law and the mating position, the penis of the male cockroach is not inserted into the vagina of the mother's cockroach. When the fake is fitted, the male's hindquarters do not bend so much that they can't stand the movement of the mother's jealousy. The penis is exposed outside the female's body. The spirit is not concentrated, the two eyes send the thief, no ejaculation action, and a little intimidation is right. Open the right and then grab the mother and observe the vulva, and the vulva is not congested.
The fourth is careful observation, safe breeding, to prevent water damage. Because of the varying lengths of otters mating, the shorter ones are a few minutes and the older ones are several hours, the majority being 0.5-1 hours. After opening, the male and female cockroaches often bite each other, so the female cockroach should be returned to the original cage in time. At the same time, due to the thirst after mating, the public should wait for a while before supplying drinking water to ensure health. Because the estrus identification is inaccurate, or because of improper choice of spouse, the male and female do not like each other. In this case, pay attention to the public and mother's fight bite injury.
The fifth is to do a good job in breeding records. After determining the match, the relevant data should be entered in the seed registration form for examination.
Sixth, do a good job in semen quality inspection. The quality of the semen has a direct impact on the reproduction of the mother quail. The average normal male ejaculatory volume is once 0.102 0.066 ml. Every 1 milliliter of semen contained 54,652,359 spermatozoa (1400-8600), and the average sperm length was 32.815.7 micrometers. Semen quality inspection methods can be performed with a 200-fold microscope. Use a glass rod to insert 2-3 cm into the vagina of the female cockroach just after mating. A small amount of semen is smeared. The semen is applied to the slide glass for microscopic examination, and the viability, shape, and density of motile sperm and spermatozoa are visually observed. If there are many spermatozoa and most of them are in a straight line motion, the shape is like a mole, the head is elliptical, and the tail is slender and even, indicating that the sperm is normal. If the microscopic examination has no sperm, dead spermatozoa, few sperm counts, or abnormal spermatozoa, it is a circular motion. If the sperm head is round and the tail is thick and straight, the semen quality is poor. If several inspections are the same, this kind of public money cannot be used for breeding. The quality inspection of semen should be performed indoors at room temperature of 37-39°C. Below or above this temperature range, the quality of the sperm will be affected.
Seven is the correct use of sex hormones. From the practice of leech breeding, it is possible to prove that any mother who has prematurely used sex hormones to carry out aphrodisiac is more likely to have a sexual desire for sexual advancement and breeding, but the birth rate is extremely low. Therefore, in order to use sex hormones, female hormones that are still not in heat during estrus (in mid-March) can be used. The dosage is 170 units or pregnant horse serum gonadotropins, and the dosage is 150 units each. After injection, 3-7 days to put it right.
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