阅读说明：本技术 一种母猪的人工受精方法 (Artificial fertilization method for sow ) 是由 焦俊 于 2020-04-01 设计创作，主要内容包括：本发明公开了一种母猪的人工受精方法,该方法包括以下步骤：该方法包括以下步骤：1.公猪精液采集：选取7~9月龄的公猪,冲洗完毕后,然后利用器械获取公猪精液；2.精液品质检查：包括容量检查、温度检查、颜色检查以及活力检测；3.精液稀释：将合格的精液进行稀释处理,稀释完成后,用输精瓶或输精袋进行分装；4.人工受精：当母猪发情后30~45小时,取出输精袋或输精瓶,并将温度升至30~34℃,检测输精瓶或输精袋中的精液活力后,对母猪进行配种,为提高受孕率,应采用重复输精的方式进行人工配种,间隔6~8h输精一次,重复2~3次。本申请系统的介绍了从精液采集到配种之间的各个步骤,保证以高活力的精液进行配种,可提高母猪的受孕率,提高企业经济效益。(The invention discloses an artificial fertilization method of sows, which comprises the following steps: the method comprises the following steps: 1. boar semen collection: selecting a boar of 7-9 months old, and after washing, acquiring boar semen by using an instrument; 2. semen quality inspection: the method comprises the steps of volume inspection, temperature inspection, color inspection and vitality detection; 3. semen dilution: diluting the qualified semen, and subpackaging with semen bottle or bag; 4. artificial fertilization: and taking out the insemination bag or the insemination bottle 30-45 hours after the sow is in estrus, raising the temperature to 30-34 ℃, and breeding the sow after detecting the sperm vitality in the insemination bottle or the insemination bottle, wherein in order to improve the conception rate, artificial breeding is carried out by adopting a repeated insemination mode, and insemination is carried out once every 6-8 hours for 2-3 times. The system introduces each step from semen collection to hybridization, ensures that the hybridization is carried out by the semen with high activity, can improve the conception rate of the sow, and improves the economic benefit of enterprises.)

1. An artificial insemination method for sows, which is characterized by comprising the following steps:

1. boar semen collection:

1) selecting a 7-9 month-old boar, washing the boar body with warm water, and mainly cleaning the belly and the foreskin of the boar body;

2) after washing, driving the boars into a clean semen taking chamber, then taking the boar semen by using an instrument, placing the semen into a semen taking container with the temperature kept at 30-35 ℃, and marking the outer side of the semen taking container to identify the boar semen;

2. semen quality inspection:

1) and (3) capacity checking: weighing and recording the semen weight in each semen taking container;

2) and (3) temperature checking: measuring the semen temperature in each semen taking container, and discarding semen below 33 ℃;

3) color checking: the qualified semen should be milky white and free of off-flavor;

4) and (3) activity detection: placing a small amount of semen on a glass slide, heating to 37 ℃, and observing the activity of the semen under a microscope;

3. semen dilution:

diluting the qualified semen, subpackaging by using semen conveying bottles or semen conveying bags after dilution, subpackaging by 80-90 ml per portion, shaking the un-subpackaged semen uniformly in time in the subpackaging process to prevent the semen from precipitating to cause death, storing the subpackaged semen conveying bottles or semen conveying bags in a constant temperature box at 18-20 ℃ for later use, and uniformly mixing the semen conveying bottles or semen conveying bags once at intervals of 8-10 hours to prevent precipitation;

4. artificial fertilization:

1) taking out the insemination bag or the insemination bottle when the sow is in estrus for 30-45 hours, raising the temperature to 30-34 ℃, and mating the sow after detecting the sperm vitality in the insemination bottle or the insemination bag;

2) when mating, strictly cleaning the vulva of the sow, striding the sow on the body for insemination, inserting the vas deferens into the reproductive tract of the sow at an angle of 45 degrees upwards, rotating the vas deferens clockwise after entering 3-4 cm, continuing to rotate slowly and simultaneously moving back and forth when resistance is sensed until the front end of the vas deferens is sensed to be locked, confirming that the front end of the vas deferens is really locked by the cervix, pricking a small hole at the bottom of a insemination bottle by using a needle head, touching the breast or vulva of the sow, pressing the back to stimulate the sow, enabling the uterus to contract to generate negative pressure, and absorbing semen;

3) controlling the insemination time by controlling the height of the insemination bottle or the insemination bag, finishing the insemination within 3-5 min, folding the rear end of the insemination tube into a small section after the insemination, placing the small section in the insemination bottle to prevent air from entering, placing the insemination tube in the sow body to continuously stimulate the sow for 5min, and then drawing out the insemination tube at a higher speed;

4) in order to improve the conception rate, artificial mating is carried out by adopting a repeated insemination mode, wherein insemination is carried out once every 6-8 hours and is repeated for 2-3 times.

2. A method of artificial insemination of a sow as defined in claim 1, wherein: in the step 4, the sow is prevented from approaching the boar or smelling the smell of the boar within at least one hour before the mating, so that the sow is prevented from bringing unreasonable influence on the mating after being highly excited and tensed.

Technical Field

The invention relates to an artificial fertilization method for sows, which is applied to the technical field of live pig breeding.

Background

Artificial insemination of pigs is the most effective means for improving the breeds of the pigs, and can promote the breed renewal and improve the quality and the uniformity of commercial pigs. The artificial insemination technology can be used for rapidly popularizing the high-quality genes of the good boars, eliminating the poor boars, keeping the good boars and eliminating the poor boars, and reducing the feeding amount of the boars, thereby reducing the pig raising cost and achieving the purpose of improving the benefit. Meanwhile, heterosis can be fully utilized through artificial fertilization, disease transmission is reduced, manpower, material resources and financial resources are saved, and economic benefits are improved. However, the artificial fertilization method in the current market is relatively extensive and is not systematic enough, which directly affects the success rate of artificial fertilization and brings loss to the economic benefit of enterprises.

Disclosure of Invention

Aiming at the technical problems, the invention discloses an artificial insemination method for sows, which can improve the success of artificial insemination and obviously improve farrowing rate.

The invention discloses an artificial fertilization method of sows, which comprises the following steps:

1. boar semen collection:

1) selecting a 7-9 month-old boar, washing the boar body with warm water, and mainly cleaning the belly and the foreskin of the boar body;

2) after washing, driving the boars into a clean semen taking chamber, then taking the boar semen by using an instrument, placing the semen into a semen taking container with the temperature kept at 30-35 ℃, and marking the outer side of the semen taking container to identify the boar semen;

2. semen quality inspection:

1) and (3) capacity checking: weighing and recording the semen weight in each semen taking container;

2) and (3) temperature checking: measuring the semen temperature in each semen taking container, and discarding semen below 33 ℃;

3) color checking: the qualified semen should be milky white and free of off-flavor;

4) and (3) activity detection: placing a small amount of semen on a glass slide, heating to 37 ℃, and observing the activity of the semen under a microscope;

3. semen dilution:

diluting the qualified semen, subpackaging by using semen conveying bottles or semen conveying bags after dilution, subpackaging by 80-90 ml per portion, shaking the un-subpackaged semen uniformly in time in the subpackaging process to prevent the semen from precipitating to cause death, storing the subpackaged semen conveying bottles or semen conveying bags in a constant temperature box at 18-20 ℃ for later use, and uniformly mixing the semen conveying bottles or semen conveying bags once at intervals of 8-10 hours to prevent precipitation;

4. artificial fertilization:

1) taking out the insemination bag or the insemination bottle when the sow is in estrus for 30-45 hours, raising the temperature to 30-34 ℃, and mating the sow after detecting the sperm vitality in the insemination bottle or the insemination bag;

2) when mating, strictly cleaning the vulva of the sow, striding the sow on the body for insemination, inserting the vas deferens into the reproductive tract of the sow at an angle of 45 degrees upwards, rotating the vas deferens clockwise after entering 3-4 cm, continuing to rotate slowly and simultaneously moving back and forth when resistance is sensed until the front end of the vas deferens is sensed to be locked, confirming that the front end of the vas deferens is really locked by the cervix, pricking a small hole at the bottom of a insemination bottle by using a needle head, touching the breast or vulva of the sow, pressing the back to stimulate the sow, enabling the uterus to contract to generate negative pressure, and absorbing semen;

3) controlling the insemination time by controlling the height of the insemination bottle or the insemination bag, finishing the insemination within 3-5 min, folding the rear end of the insemination tube into a small section after the insemination, placing the small section in the insemination bottle to prevent air from entering, placing the insemination tube in the sow body to continuously stimulate the sow for 5min, and then drawing out the insemination tube at a higher speed;

4) in order to improve the conception rate, artificial mating is carried out by adopting a repeated insemination mode, wherein insemination is carried out once every 6-8 hours and is repeated for 2-3 times.

In the step 4, the sow is prevented from approaching the boar or smelling the smell of the boar within at least one hour before the mating, so that the sow is prevented from bringing unreasonable influence on the mating after being highly excited and tensed.

The invention has the beneficial effects that: the system introduces each step from semen collection to hybridization, carries out detailed detection on semen, ensures that the semen with high activity is used for hybridization, can improve the conception rate of sows, and improves the economic benefit of enterprises.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.