Although Li Sheng and Thomas didn't know how big the snake was, it would definitely not be small if it could swallow a 180-pound calf. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Thomas knew that they couldn't completely prevent the snake from entering the hinterland of the farm, so he had to put the matter aside for the time being. "Lee, there's another problem with the farm," he said. The last time we searched, we found a lot of newly dug rat holes in the pasture, and this time we found more. That proves that there are more and more rats on the farm. I think we need to do something ahead of time. ”

Li Sheng has long considered preventing rodent infestation, but he has never been able to think of any good way. The herd needs to eat grass, and it is definitely not possible to apply medicine. I'm afraid it won't have much effect.

He sat down on his desk and said, "Pudding and the three servals often come home with mice. There are more and more rats, and I am aware of it. It's just that I don't know how to prevent rat infestation. ”

The harm of rats is not only in destroying grasslands, but also in the fact that they are carriers of dozens of viruses and bacteria that can endanger human health.

Thomas had been thinking about how to deal with the python, and he hadn't thought about how to deal with the rapid increase in rats. He would just give Li Sheng a reminder.

He thought for a moment and said, "Getting rid of rats requires the efforts of all the people on the farm. Such as reducing garbage and so on. But I don't think the rats necessarily need to get food from the garbage heap, the roots of the grass can provide them with enough food. ”

"That's the worst, isn't it?" Li Sheng let out a sigh. He opened the door to his office, glanced at the grassland that had been spreading across the office area, and said. "As long as there is grass, these rats will not starve. When there are enough rats, the grass will disappear completely. ”

"Maybe we can get some cats. "Of course, Thomas knew that the snake was the best at catching rats, but he couldn't have let Li Sheng introduce the snake. Because the strongest way to catch rats is the poisonous snake. Although snakes are very mobile, they are obviously not as fast as rats. Most of the rats that can be killed in large quantities rely on venom. How could he possibly let Li Sheng introduce a large number of poisonous snakes.

But then again, if there are always more rats on the farm, it is inevitable that poisonous snakes will enter the farm.

Li Sheng thought for a moment and felt that there was only this way now: "You can raise some cats, but around the house and warehouse, where the cattle rarely come, you can use rat poison and cages." ”

"I'll talk to Zhang. Thomas didn't have the slightest idea. There are also some woods on the farm, which are home to many owl-like birds, and there is also an unknown species of big-eared fox on the farm, which eats mice. It's just that there are too few of them.

He suddenly smiled and said, "Li, maybe after a while, there will be more wild animals on the farm." This rat is an animal at the bottom of the food chain. ”

Li Sheng has also considered this issue before. He smiled wryly and said, "I hope that there will be enough of those animals before the rats get infestation." Of course, it's better that not a single snake comes. ”

"But that can't be. Isn't it?" Thomas shrugged. "Maybe we can stock up on some snake serum in the infirmary. ”

Li Sheng didn't want the whole farm to be full of poisonous snakes. He thought for a moment and said, "Let's have a meeting and think of a way!"

Soon several of the farm's top brass were called to his office. He told them about the possibility of a rat outbreak on the farm at any time, and asked them if there was anything they could do.

When they thought deeper, they realized that if there was a rat outbreak on the farm, all kinds of problems could ensue. This is also the only way to re-establish a balanced ecology after destroying the ecology. But in the process, farm workers will face a safety crisis, which they really don't want to see. Several of them racked their brains, but they couldn't think of a good way to avoid the next possible crisis.

Zhang Feng is old, he has not spoken, because he knows that the situation on the farm is relatively special, and those ordinary rat catching methods are not suitable for the Silent Farm. When everyone couldn't think of a new way for people to veto, he suddenly proposed: "Why don't you find Feng Xiaoting and see if he has a way." ”

He just thinks that Feng Xiaoting is the most educated person on the farm, and he is said to be a genius. Maybe he'll find a way.

Several people had a meeting for a while, but they couldn't think of any good way, so Li Sheng had to let them go back and think again. Although he didn't have much hope, after the meeting ended, he still came to the laboratory according to Zhang Feng's proposal.

This laboratory covers a large area, at least 2,000 square meters, but there are more than two acres of farmland, and the rest is the real laboratory. Although the building here is also a modular structure, the overall decoration is probably the best and perhaps even the most expensive in the entire farm except for his villa.

It was built to international cleanliness standards, and in this nondescript two-story building, more than $200 million worth of equipment was placed. One of them, a 3.2 million times electron microscope, is worth more than $30 million. It is said to be the microscope with the highest resolution and largest magnification in the world.

When he went to the experiment, he needed to be disinfected, and he also needed to change his clothes and so on, but he didn't bother and didn't go in. Instead, he called Feng Xiaoting to come out, and he waited in the courtyard behind the laboratory.

The cultivated land in this yard is a standard 100-square-meter glass greenhouse. Wheat and rice are being grown inside, and they are all experimental control groups. And the doors of these greenhouses are locked, and he doesn't have a key.

Three minutes later, Feng Xiaoting came out in a big white coat, a white hat on his head, and a mask on one ear, like a doctor who had just come out of the operating room.

"Mr. Li, do you have something to do with me?" Although he was a little dissatisfied with what he was doing, Feng Xiaoting knew that Li Sheng was his food and clothing parents. At least Li Sheng's investment in the experiment is still very generous. If he was somewhere else, even if he could participate in the experiments he wanted to do now, he would only be one of the inconspicuous experimenters, and he could not be the leader at all. So he doesn't need to give Li Sheng's face.

Although this leader is very hard now, and he doesn't even have a qualified assistant, at least he can do experiments according to his own ideas. This is a condition that cannot be given to him in any country. So Li Sheng called him to come out, but he didn't take Qiao, and immediately put down the work at hand and came out immediately.

Li Sheng saw him and said, "Yes, there are some things I want to ask you. However, he didn't immediately ask him if there was a way to solve the rodent problem. Instead, he looked at one of the greenhouses and said. "How's the experiment?"

Feng Xiaoting was clear about the greenhouses in this backyard, and he opened his mouth and said: "So far, I am more optimistic, the germination rate of the treated seeds can reach more than 96%, and the growth rate is also quite fast." Although there are many artificial control factors in the greenhouse, the growth rate is about 10% higher than that of the original seed planted outside. That's a good adjustment. I just don't know the output, and whether it can achieve the goal is not certain for the time being. ”

The purpose of what he said was that Li Sheng's request for the second generation of seeds from these crops to be sterilized. Although he knew that it was impossible, he should be able to control the production and keep it under control. Of course, he doesn't want to talk to Li Sheng about this result now.

Because it will take at least five or six months for this experiment to get results, everything that is said now is false.

He went on to talk a little bit about seed experiments, mainly data, and didn't have much jargon.

Feng Xiaoting said very simply, because he knew that what he said was complicated, and Li Sheng might not understand it.

It is true that Li Sheng's knowledge of biology is superficial. He didn't understand anything too specialized, such as changing the reproduction of seeds, cell division, and so on by changing the transformation of gene base pairs, and so on, and he had a bit of a headache when he heard it. However, I heard that the experiment went well, and it may take another half a year to get the final results.

If you are unlucky, you may never be able to breed neuters that are "no more than three generations".

Li Sheng knew that Feng Xiaoting did his best, because he had already said that this was not genetically modified, but the use of chemical and physical effects to catalyze the mutation of the original genes of the seed, and this catalysis was not 100% successful.

He nodded and said, "I don't understand professional things, I just want to get what I want as soon as possible." ”

Feng Xiaoting thought for a while and said, "Actually, I understand what you think, Mr. Li, but you don't need to sterilize the seeds. Picking out the seeds of variations that match your requirements requires a lot of time to prepare each time. ”

"Well, what do you mean?" Li Sheng's face was a little unkind. "You didn't say that before. ”

"This is also a problem that I found in my experiments. Feng Xiaoting didn't have any burden because of his dissatisfaction, to tell the truth. "In this experiment, after each batch of seeds has been treated, at least three generations of seed experiments need to be done to get results. But even with the most appropriate method, it is impossible to sterilize those seeds 100% in the third generation, as long as one plant can be cultivated and fruitful, the seeds will actually leak out. Even if you succeed 100% of the time, you need to start from scratch to get the seeds you want. And no one can guarantee whether the new experiment will be 100% successful. ”

Li Sheng understood what he meant. Even if this experiment is successful, he still can't sell the grain from the second-generation seeds, let alone sell the grain from the first-generation seeds as seeds.

His brow furrowed even deeper, and this was not a good time to pursue him for not making this objection before. He asked, "So what do you think?"

"Mr. Li should know about hybridization. Feng Xiaoting lifted his glasses and said. "We can make the genes of these grains in the second generation of seeds unstable and prone to genetic mutations after the third generation. Each subsequent generation is susceptible to mutation. I don't think anyone would want to grow that kind of food. ”

Li Sheng looked into his eyes: "Why didn't you do experiments according to this idea before?"