In recent years, more and more pig farms have used intensive farming models and become the trend in the modern pig industry. This farming model has large scale and high efficiency, so artificial insemination of pigs can highlight its advantages, such as breeding efficiency. , variety control, breeding costs, and so on. In general, the semen of a strong and excellent boar can cause a hundred sows to conceive under the correct operation, which greatly saves the cost of mating and thus becomes the main breeding means for large-scale pig farms. Today, Xiaobian will give you the process, superiority, and restriction of artificial insemination of pigs.
First, the basic process of artificial insemination of pigs
The boar is collected by the technician, the fresh boar semen is collected and sent to the semen quality inspection, and the other part is sent to the semen dilution liquid to mix and dilute the fresh pig semen at 15°. The preservation was carried out at a temperature of ~18°, and then the technicians inseminated the sow.
Second, the superiority of pig artificial insemination
1. Effectively reduce infectious diseases: The direct contact of male and female pigs avoids the problem of spreading infectious diseases through mating.
2. It is conducive to improving the quality of the herd: the most excellent boars are more fully utilized, making the use of the best boars more economical and greatly improving the overall quality of the breeding herd.
3, the breeding rate is reliable: all the semen used for insemination have undergone quality inspection; the breeding ability of the reserve boar is identified at the fastest speed.
4. Solving the difficulty of breeding due to the disparity of male sows; it is convenient for the sows to self-support. By purchasing semen breeding, it is possible to economically realize the self-propagation of the sows.
Third, the reasons for the failure of artificial insemination on the farm
1. The artificial insemination equipment and supplies are imperfect and the equipment used is unreasonable.
2. Disinfection and sanitation are not strict or flow in form.
3, the number of effective sperm is too small or the timing of breeding is not allowed.
4. The dilution solution is not standardized or not properly stored.
5, the operation is not standardized.
6, repeated use of gloves and filters and collection cups are very easy to contaminate semen due to incomplete disinfection.
7. The soft insemination device is sent to the reproductive tract of the sow by hand to easily contaminate the reproductive tract.
8, with a syringe insemination is easy to form "vortex" and the sperm is damaged.
4. How to carry out artificial insemination in the farm?
1. The artificial insemination must perform the necessary training before taking up the post.
2, the present + insemination: the first use of the original in a breeding period, the second breeding using artificial insemination.
3. Partial artificial insemination: artificial insemination of some sows: in the estrus, healthy, and productive parental sows.
4, improve the number of sperm input: in order to ensure reliability when beginners carry out artificial insemination, the number of sperm in one insemination is twice as high as the recommended amount.
5. Estimation of conception rate and litter size: A comprehensive assessment of artificial insemination carried out on the farm should be carried out in the full implementation of artificial insemination. Artificial insemination results should be evaluated periodically in the future.
6. Full-scale promotion after half a year: Gradually achieve full-scale artificial insemination in 5-6 months.
5. Limitation of artificial insemination of pigs
1. Do not expect to significantly increase the conception rate and litter size: if the boar is healthy, the artificial insemination will not increase the conception rate and litter size of the sow compared with the present.
2, semen can not be stored for a long time: pig sperm has poor tolerance to low temperature, so semen cryopreservation effect is poor and high cost. Generally, it is only stored at room temperature and the storage time is 3-7 days.
3. Artificial insemination personnel must perform certain training.
4. There must be corresponding equipment conditions, laboratories and consumables.
5, the operation must be cautious: if improper operation may affect the conception rate and litter size may even cause sow infertility.
6. The greater the scale, the greater the significance of artificial insemination.
Pig artificial insemination is only suitable for modern scale pig farms in intensive farming mode, as these farms have the funds, technology and equipment to complete a series of processes, while the use of pig artificial insemination in small pig farms only increases the cost of breeding.
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