In the 1985, Yang Rui was quite confident in the gender identification technology he did.

The gender identification of embryos is originally the highest threshold for embryo transfer.

What's more, it was the time when PCR was invented.

PCR is the strongest general technology born in the field of biotechnology in recent years, and its impact on biology is no less than that of Watt steam engines on the industry.

Moreover, the impact of PCR is faster and stronger.

If it is a bit exaggerated to say that every machine factory during the Industrial Revolution had one or even multiple Watt steam engines, it is not an exaggeration to say that modern biological laboratories, each with one or more PCR instruments.

Of course, any technology has a development process, and the more general the technology is, the more so it is.

In 1983, when PCR was just born, scholars were still a little confused, but by the 1985, many applications have been developed.

Using PCR for embryo identification is a technology that has just been developed for a year.

Before this, embryo identification was still using cytogenetic analysis methods. It was very complicated to do, and the accuracy rate was not high. At least it could not be compared with PCR technology with stable accuracy of 95%.

In the domestic situation, the correctness rate of many laboratories is only 80%.

It sounds good, and if you put 80 points on the test paper, it seems to be a good result.

However, in actual application, 80% accuracy rate can basically be said to be a disaster and is almost difficult to use.

Suppose a farmer needs 100 heifers and ends up getting 80 heifers and 20 calves. The trouble caused by this is not something good can solve - the only one who can solve this problem is the legendary calves meat.

Of course, the hotel likes the cheap and affordable calves, which farmers don’t like.

This is true for 100 cows, so what will happen to 1 million cows?

Thinking about the needs of China Animal Husbandry Company, we can understand the seriousness of this problem.

For China Animal Husbandry, the only thing they need is cows, because their goal is to expand their population. As for the bulls, the market prospects in the domestic market are not very good. The most important thing is that they use US dollars for breeding, while sporadic selling of meat can only get RMB.

In other words, the 80% accuracy rate is an additional 20% foreign exchange expense for China Animal Husbandry. This is of course an unbearable expense.

For the ranchers, 200,000 cows suddenly appeared among the 1 million bulls that were preparing to sell meat. They ate a lot, but they were not fat, and the meat was not beautiful, so they could not be sold as calves. In the end, it would be better to grow naturally without using gender identification and control plans, and then sell the heifers in exchange for sale.

Therefore, accuracy and accuracy are the key points of gender identification and gender control.

In the pre-PCR era, the animal husbandry industry was not very successful in gender identification and gender control, and most farmers and agricultural institutions would not adopt this plan that costs money and has no effect.

In the post-PCR era, extremely high accuracy and accuracy brought about revolutionary changes.

However, Yang Rui's paper is not prepared to consider this revolutionary change.

His paper focuses more on the application of PCR.

As the inventor of PCR, expanding the scope of PCR technology once again was originally a gimmick that journals liked - academic journals also need gimmicks. For example, experiments made with Einstein's brain cells are more eye-catching than experiments made by Anonymous brain cells.

After all, academic journals are a kind of journal, and they also need attention and recognition from scholars.

Of course, this alone is not enough to be on the "Nature".

After all, it is the world's leading famous journal, and the gimmick is the icing on the cake.

What makes Yang Rui really confident is the primers he designed.

Primers are the prerequisite for PCR. If PCR is described as a computer, primers are the application of this computer. Different experiments are required to design different applications. Primers in the 21st century already have general design templates, and the work is relatively simple and can be compared to computer operating systems. However, in 1985, the PCR technology, which was just born, was more like a complex mainframe. There is neither an operating system nor an easy input and output method. Each study requires additional design and specialized applications.

At this time, the primers designed by Yang Rui were actually an excellent sample.

Yang Rui believes that there will be many scholars who are willing to take a look at the PCR primers he made by himself.

Although it is far from perfect, there is nothing perfect about academics.

On the other hand, Yang Rui sent his papers to scholars such as Dalbeko, which was not only to communicate with them, but also to beat the edge drum.

Communication work through letters is something that Western scholars were very familiar with hundreds of years ago. Some of Gauss' research was collected from the letters he had communicated with.

Before email became popular, scholars from various countries basically maintained this way of communication.

Anyway, for academic research, a delay of a few days or more than ten days is nothing.

Dalbeco and others were also happy to understand Yang Rui's work. As for the current development of biology, there are only a few fist characters, and Yang Rui can barely be among them. Naturally, everyone has the intention to understand him.

In general, it is not as easy as a domestic journal for Yang Rui to publish a paper in Nature, but it is not too difficult.

Even if Yang Rui himself doesn’t know his influence very well, this paper can be regarded as an attempt.

Yang Rui waited quietly and continued to direct the genetic engineering laboratory to conduct systematic experiments - the first batch of 10 Simmental cattle were led into the backyard of the genetic engineering laboratory.

The temporary beef pens were a little bit simple, but the Simmental cattle probably didn't care.

Several experimenters looked at these cattle curiously. For those who are used to scalpers, the strong Symental cattle really looks tall and strong. In terms of size, it looks a bit like the gap between Chinese pastoral dogs and Erha.

Sun Zhengchu and Wang Zi'ang quickly conducted physical examinations for 10 cows and recorded the data.

Both of them are traditional geneticists who solve physiological problems for animals all year round.

The ten new cows became the responsibility of Sun Zhengchu and Wang Zi'ang.

Yang Rui basically doesn't have to manage it anymore. He doesn't know how to raise cattle, nor how to take care of the happy life of cattle. In fact, he doesn't have to do this.
Chapter completed!