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How to train boars during isolation?

Training boars is a very important work, we must make adequate preparations: environment, materials and personnel. In the process of training boars, establish a good relationship with boars to make them feel comfortable and safe, and then the boars climb the false sow platform by themselves; for boars that are difficult to train, try a variety of stimulation methods, several methods can be recycled, and even use xiyekang; do a good job of training and sperm collection records, and note the characteristics of boars, which can greatly improve the work efficiency. Keep in mind: treat boars well and be patient!

1、 Introduction

In pig production, boar training is a very important work, which is a key step to improve the utilization rate of boar. Pic China introduces boars from the breeding core groups in the United States and Canada every year, so as to introduce the best genes into China in time. Before entering the pic core farm, these imported boars should be isolated and quarantined for 45 days in CIQ isolation field of exporting and importing countries. Most of the boars were aged from 8 to 10 months when entering the quarantine farm in China. During the isolation farm, PIC had professional personnel to train all the older imported boars.

In June and October 2017, PIC China introduced 48 boars and 50 high index boars from abroad. Through the efforts of the staff, the final success rate of boar training was 99% (see Table 1). Here, I would like to share the experience with you, hoping to help you.

2、 Preparation for training

Adequate preparation is the first and most important step in the whole teaching process. The preparatory work is divided into the following three aspects:

1. Relieve the stress of boars as soon as possible: boars will be tired or stressed after long-distance transportation, so we must provide a good living environment for these boars and reduce the stress response. The optimum temperature of pig house is 18-20 ℃, and the boar should be provided with sufficient water (the water flow rate should not be lower than 3L / min) and high-quality feed.

2. Preparation of pen facilities in the isolation field: the pig pen should be convenient to drive pigs back and forth, and ensure the communication between boars. It is suggested to prepare two kinds of sperm collection pens in pig houses, one is 1.1-1.2m * 2.5-2.7m, and the other is 2m * 3M (the 2m * 3M column can also be used as feeding pen, which can be adjusted in the boar's own pen). Two or more sows with fixed quality are recommended. If there are only large fences in the isolation site, it must be one boar in each row, so as to avoid boars fighting and climbing each other.

3. Make training plan: train twice a day (morning / afternoon), 15 minutes for each pig; arrange enough personnel to participate in boar breeding and training; keep enough patience during the whole training period.

3、 Boar training methods

In the process of training boars, priority should be given to the boars with strong sexual desire, good mental state and healthy condition, and the boars should be allowed to climb on their own as much as possible, and appropriate stimulation should be given to the boars that are difficult to train. The method of boar training is mainly divided into the following four parts: establish a good relationship with boars; give appropriate stimulation; try a variety of stimulation methods for boars that are difficult to train; clear records to improve work efficiency.

1. Establish a good relationship with boar: the success rate of boar training depends on the relationship between human and boar. When the boars reach sexual maturity, when they feel safe and confident, they will climb over the false sow platform and accept sperm collection. How to deal with them determines the success of the training. If the boar gets comfortable and calm treatment, such as stroking the ear and trying to communicate with it, the boar will show confidence and calm in front of people; if the boar is rough and uncomfortable, it will show fear of people, which is difficult to adjust. If the boar does not climb the false sow platform in one day's training, encourage him to say "good boy", gently drive him back to his stall, and continue to try to train the next day. Good treatment of boars is a key factor in the regulation of boars. In the process of driving pigs, don't rush too fast, let them walk freely. In the process of driving pigs, allow them to contact other boars nose to nose, which is conducive to stimulate their sexual desire.

2. Give the boar appropriate stimulation: when the boar is transferred to the sperm collection stall or training area, we should pay attention to the behavior characteristics of the boar, which will be conducive to the rapid training of the boar to climb successfully. Understand the characteristics of boar, as a skill of training the boar, find its favorite stimulation way, which can improve the efficiency of training. For example, when a boar turns into a sperm collection stall and is particularly nervous and afraid, he will turn it back to his own pen and move a fake sow platform into his living pen for training. The boar will feel very comfortable in his own territory. If the boar does not climb, try to rub the foreskin area to make it ejaculate. Gently and firmly push the boar's head close to the dummy sow table with his elbow, rub, pat the dummy sow or try to sit on the dummy sow table, and remember to keep communicating with the boar throughout the process.

3. Try to stimulate the boar which is difficult to train by various ways

If the boar is still afraid of human beings in its own pen, fix the false sow station in the pen, and the personnel will go away, and let the boar try to contact the fake sow platform. If the boar climbs the false sow platform, the personnel should pass behind the boar as far as possible, help him adjust his posture and stabilize it, and then try to collect semen. The whole process should be cooperated by two people. If the boar is still not interested in climbing, the boar should be reared among the successfully trained boars by changing the field, and the boar's desire to climb can be enhanced by the demonstration of sperm collection in the pen (large pen feeding can realize sperm collection in the boar pen), and the constant stimulation of boar contact and semen odor.

If the boar is still nervous and afraid of people and has no climbing action, he can be rushed to the sow area to try to contact with the oestrus sow. If there is a climbing action of the sow, he should be immediately driven back to the sperm collection stall to try to climb the fake sow platform. If the boar doesn't climb, let him contact with the sow every day, twice a day, 15 minutes each time. After constant stimulation, he will eventually climb the false sow platform.

When collecting sperm from a boar, the unsuccessful boar can be observed nearby. Usually, the boar observed outside the pen will show an excited state. After the sperm collection, the boar will be driven into the sperm collection stall to try to adjust.

All the methods mentioned above can be used in the trial. Take xiyekang as the last method. The other pigs were injected with Gongxi for about 15 minutes. If the training is not successful, the next 3-4 days can be repeated injection of xiyekang. If the boar still does not climb the false sow platform, let him rest, and stop using xiyekang for 5-7 days. In general, after 1-2 injections, most boars will climb over the false sow platform. If the training is successful, hormone will not be used in the next semen collection.

  4. Sperm collection records: in the process of boar training, daily records are very important. The performance of boars in the training process is recorded by using the 5-point system, which can clearly record the behavior of boars and their response to the training. In this way, before each training, you can query the previous training situation of the boar, so as to formulate the current training method, which will effectively improve the training Efficiency.

4、 Conclusion

Training boars is a very important work, we must make adequate preparations: environment, materials and personnel. In the process of training boars, they should establish a good relationship with boars to make them feel comfortable and safe, and then the boars can climb the false sow platform by themselves; for boars who are interested in the false sow platform but have some difficulties in climbing, some stimulation can be given, such as rubbing the foreskin area or the back; for the boars that are difficult to adjust, try various stimulation methods, and several methods can be recycled; To do a good job of training and sperm collection records, notes the characteristics of boar, can greatly improve the work efficiency. Keep in mind: treat boars well and be patient!

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