Agricultural giant since 1983

Chapter 149 Ultrasound

"Boss, what are these for?" He Zhanhai looked curiously at the English on the packing box. His English level is good, but it is still a bit difficult to read professional vocabulary. It took a long time to make out a few words, "A-type ultrasonic Detector?"

"Yes, this is an A-type ultrasonic detector, and that one is a B-type, both of which are bought to improve breeding efficiency! Quickly disassemble and install them, and I will teach you how to use them!" These two devices are commonly known as A-ultrasound and B-ultrasound. Everyone knows its medical use, but not many people have tried it in the field of breeding.

Compared with the ultrasonic equipment commonly used in breeding farms and farms of later generations, these two machines are much clumsy, and it took a lot of effort to install and debug them properly.

Li Lei told He Zhanhai, "Bring a few sows that have been inseminated but not yet pregnant."

The sows were quickly brought in, kept humming in the cage, at least on the surface, it was difficult to tell whether they were pregnant or not.

"Look at the screen, what can you find?" Li Lei pointed the B-ultrasound probe at the sow's abdomen, and the corresponding picture appeared on the screen.

He Zhanhai wiped his glasses and put them on again, staring at the display screen firmly. The performance of today's B-ultrasound machine is far inferior to that used in later generations, and the picture is still very blurry, but what he wants can still be seen. He Zhanhai will immediately Judgment based on rich experience, "This is... a typical dark area of ​​the gestational sac, and this sow is successfully pregnant!"

"Let me see?" Li Lei stretched his neck and glanced, "Yes, you read that right, the previous artificial insemination works well, and this sow has been pregnant for about two weeks."

"Take another look!" He Zhanhai is now happier than hearing that his wife is pregnant, "If this device can really accurately determine whether a sow is pregnant, it will save a lot of money!"

In the late pregnancy of sows, experienced staff can tell at a glance, but they can’t tell when the stomach has not responded in the early stage; so no matter whether they are pregnant or not, they have to be fed according to the treatment of pregnant sows. Feed is definitely more expensive than regular feed.

So if we can screen them in time and pick out those non-pregnant sows to feed them with conventional feed, then the cost of feed will be reduced a lot.

This is not the most important thing, the more important thing is that it can increase the frequency of pregnancy of sows; with the old method, those sows that are not pregnant will not be discovered after a long time, they not only eat and drink, but also delay The time to continue breeding reduces the utilization rate of sows.

This problem can be avoided by using a B-ultrasound machine for detection. The non-pregnant sows can be re-screened out in about [-] days, and they will be bred again, so that the sows will have less time to be idle and can breed. More piggies to come.

"This one is also pregnant and the efficiency of artificial insemination has improved a lot. If natural insemination is adopted, there will not be such a high pregnancy rate." After checking several sows in a row, the screen appeared The clear dark area of ​​the gestational sac is much higher than that of natural insemination.

"Hey, this one is not pregnant! This guy's belly is bigger than other sows, so it's hard to judge!" Finally, He Zhanhai found an empty pregnant sow. Pull it out of the cage, "Take it to the non-pregnant sow crate! Don't let it eat good feed again."

"Wait a minute, besides not being pregnant, did you see anything else?" Li Lei reminded, "Go back and take a good look."

"What else?" He Zhanhai sat back after hearing the sound, carefully observed the screen inch by inch, and soon found the information Li Lei wanted him to see, "Oh, I see, the follicle development of this sow is not It is very mature, that's why it failed to conceive, next time it should be artificially seduced and bred again!"

"Yes, this is the second use of the B-ultrasound machine, which is to monitor the development of follicles and ovulation; by monitoring the development of follicles in sows, it is possible to conduct centralized breeding for sows with mature follicles, and for sows with immature follicles. Artificial induction and aphrodisiac for sows; it is helpful for simultaneous estrus, simultaneous mating and simultaneous delivery of sows, and is conducive to the realization of the all-in-all-out feeding strategy."

Whether sows are pregnant or not, the feeding and care methods are different, and there are similar problems at different stages of pregnancy; so making sows pregnant at the same time can also reduce management difficulties and save manpower and material resources.

There are [-] sows in a pig farm. Are [-] sows pregnant every other week or sows are pregnant at the same time?It must be the latter.

This batch of sows who had just received artificial insemination had undergone B-ultrasound, and a few of the non-pregnant ones were screened out; then Li Lei asked He Zhanhai to bring in a group of sows who had been pregnant for a long time, and let them also undergo B-ultrasound. overtake.

"One, two, three, four, five, six, seven, eight, nine, eleven, twelve, I can see twelve piglets, this one is pregnant with thirteen babies, and this one is also twelve. Well, it seems that one of the fetuses died, and we have to find a way to deal with it, so as not to leave it in the stomach when it is born."

This is another use of B-ultrasound. It can grasp the development and quantity of sow fetuses in time, find abnormalities such as stillbirths, avoid the situation of stillbirths remaining in the sows’ abdomen, and timely count the number of piglets in this batch, so as to advance Make arrangements to improve the survival rate of piglets.

Li Lei conducted several more experiments and showed He Zhanhai other uses of B-ultrasound, such as diagnosing diseases, if sows have hydrops, pyometra, stillbirths, mummified fetuses, liver and kidney lesions, internal and external masses and hernias etc., can be observed through B-ultrasound, and the accuracy rate is much higher than that judged by experience.

In addition, it is also possible to observe the involution of the postpartum uterus of the sow, and judge whether the sow can start the next round of artificial insemination.

After reading the functions of the B-ultrasound, look at the A-ultrasound. The B-ultrasound is mainly used to observe the situation in the abdominal cavity of the sow, while the A-ultrasound is mainly used to detect the backfat thickness.

What Li Lei now wants to breed is a lean pig breed. The A-ultrasound is like a flashlight. The emission and reflection of the ultrasound are straight up and down to measure the distance. There will be strong reflection between the layers, and the A-ultrasound equipment can use this feature to measure the backfat thickness of pigs.

In the past, if you wanted to measure the backfat thickness of a pig, you could only judge it by experience. Professor Xiong is a genius in this area. He can judge how thick the pig's backfat is by touching the pig's back a few times. What is the ratio of fat to meat.

When He Zhanhai was studying with Professor Xiong, he really wanted to learn from him. However, this technique is just like the pulse signal of traditional Chinese medicine. After killing it and looking at it, it was almost exactly the same as what he said.

And when He Zhanhai went to touch it, he couldn't figure out what Professor Xiong said, so he could only rely on blindness. He often referred to fat-meat pigs as lean-meat pigs. Not right again.

"I also said that some time this year I would go to Professor Xiong for advice a few more times. This technique is too critical. If you can't learn it, you won't be able to improve the breeding efficiency! It's all right now, and you can see it much more clearly than Professor Xiong with this thing. ! And almost no mistakes, this saves a lot of effort!" He Zhanhai watched Li Lei use it a few times, and couldn't help but take it over and operate it himself a few times, the effect was exactly the same.

Their goal is to breed pigs with a higher proportion of lean meat, but during the growth of piglets, they can only rely on primitive experience to judge the proportion of fat and lean meat. Talented breeders like Professor Xiong After all, it is a minority, and more people can only wait for the pigs to grow up, butcher them, and cut them open for analysis.

In this case, the research time will undoubtedly be prolonged, and the cost will be relatively high. After all, raising pigs is not a small expense.

Although it is said that piglets can still sell pork for money when they grow up, the purpose of the breeding farm is not to sell pork; if the fat and lean ratio of the pig can be judged before it is raised, then it can be given up if it does not meet the standard If you concentrate on cultivating piglets with higher fat content, the cost of feeding will naturally drop, and the efficiency will also increase a lot.

Moreover, every pig with a high lean meat rate is a precious asset. Using A-ultrasound technology to detect these pigs can save these pigs and allow them to breed as many offspring as possible, which is conducive to cultivating the desired lean meat type as soon as possible. pig.

"This is the convenience brought by the development of science and technology! I often meet people who say to me, I have raised pigs all my life, why don't I understand? I still want to listen to you young? In fact, their little experience and technology Development is nothing compared to it!" Li Lei said with emotion.

"The era of relying on word of mouth to learn experience has passed, and it will be the era of scientific and technological breeding. If you don't understand science and refuse to learn, you will be eliminated by the era sooner or later!"

Can pigs be raised by relying on primitive experience?Of course it is possible. Since the experience can be passed on for so long, there is a reason for it, but whether it can be raised well and whether it can make more money is another matter.

You rely on old experience, use more feed, and pigs grow less meat, how can you compete with large pig farms?As long as someone lowers the price a little, you won't make any money, but they still have huge profits.

"Using B-ultrasound to detect whether a sow is pregnant and how much it is broken has been used by large-scale pig farms and breeding institutions abroad! In our country, only large hospitals have B-ultrasound for human use in hospitals. Not to mention using it for pig farms and breeding farms!"

"The technology of A-ultrasound detection of backfat appeared later. It has only been less than ten years since foreign institutions began to use this technology in breeding. We have enough time to catch up!"

Because it is a new technology, foreign institutions will inevitably take many detours when using it. For example, the selection of equipment models and specific usage methods must be explored before they can sum up the correct experience.

Li Lei didn't need this process. He bought the most suitable equipment and adopted the most effective method when he came here. The detection efficiency was no worse than that of large foreign companies.

"It seems that in addition to mathematics, I have to learn some physics and mechanics, otherwise I don't know what to do if there is a problem with the equipment!" He Zhanhai was a little emotional. I only wanted to raise pigs, but I didn't expect to learn so many things.

"It's better to learn something, but it's enough to learn how to use it. You don't need to learn the specific principles too deeply. We don't want to be a doctor of mathematics or a doctor of physics."

"Now these devices are still too bulky and inconvenient to use. With the development of technology in the future, these devices will definitely become smaller, easier to operate, and more efficient!" Today's devices are piled up half a room room, and the ultrasonic detectors used in pig farms in later generations are about the size of a tablet computer.

The price is not expensive, you can sell one for the price of two tablet computers, but it is not too difficult to use for a slightly larger pig farm; and it is a fool-type operation, no training is required at all, you can use it in a few seconds The clock will tell the result.

This is the power of technological development. Under the effect of Moore's Law, the speed of price drop and performance improvement of electronic products has exceeded people's expectations.

"It's not easy to use?" He Zhanhai couldn't understand Li Lei's words for a while. In the past, we wanted to find out whether a sow was pregnant, how many were pregnant, and what was the ratio of fat to lean meat. It’s difficult, now you only need to take a few photos with the probe to get the result, the efficiency has been improved by many times, and you are still not satisfied?If Professor Xiong saw these two devices, he would be so happy!
As soon as he thought of Professor Xiong, Li Lei mentioned it immediately, "I am going to send some equipment to Professor Xiong. In two days, you will go to Wuhan with me to pay Professor Xiong a good old age, and communicate with him about these equipment by the way. How to use it! See if he has any comments, if so, I can give feedback to the equipment company and let them modify it.”

Li Lei asked Ma Tianyou to invest in a small ultrasonic equipment manufacturing company in the United States. These devices were produced according to Li Lei's opinion. The performance must be advanced, but whether it is suitable for the current situation of the 80s still needs to pass the test of time.

And Professor Xiong has a lot of experience in the field of breeding, so if you ask him to provide advice, you must be sure. As for the equipment, it should be considered as a consulting fee.

In the past two days, Li Lei and He Zhanhai drove to Wuhan with the equipment, and went straight to Professor Xiong's breeding ground after entering the urban area of ​​WH.

"Professor Xiong, we both wish you a happy new year. I wish you good health and a better breed of pigs as soon as possible!" Seeing Professor Xiong, Li Lei paid New Year's greetings first.

"Hahaha, thank you, and I wish your family happiness and wealth!" Professor Xiong was a little embarrassed, "During the Chinese New Year, I even said to call you to celebrate the New Year, but I forgot it when I got busy! You The computer and software given to me are very easy to use, and the breeding efficiency has improved a lot. If there are no accidents, Hubei white pigs will be able to start large-scale breeding this year."

"Congratulations, congratulations, then it's a coincidence for us to come here, and I will give you two sets of equipment, which is considered an advance congratulations!" Li Lei greeted, and prepared to unload the equipment from the car with He Zhanhai.

　Static management for half a month, everyone is numb, thanks to Xuan Tengluo, book friend 20200110205724284 for the reward

　　
　
(End of this chapter)