After Chen Cheng returned to school, he immediately went to the breeding center.

He had to check the results of his last experiment as soon as possible.

"Lao Xu, how is the piglet?" Chen Cheng asked.

Lao Xu directly pushed out the cage containing the piglet.

"Lao Chen, during this time, I have to mow pigweed every day, but I am tired." Lao Xu said.

"Hard, hard."

Chen Cheng patted Lao Xu on the shoulder.

Lao Xu immediately smiled and said, "But the results are not bad." ”

As he spoke, he took out a record book from the room and flipped through it to Chen Cheng page by page. It records the amount of food and water that Lao Xu feeds to the piglets every day, including their composition, and the physical condition of the piglets every day, including weight and mental state.

Standardized and data-complete.

"In nine days, I grew 5 catties and 8 taels!" Chen Cheng was shocked.

This growth is indeed impressive for Iasi Black Pig.

"At the moment, the piglets are in a period of rapid growth, so they are gaining weight a little faster than at other times. However, according to the pig growth curve, it is very consistent with the data indicator of a 26% increase in production in 10 months. Lao Xu said.

Chen Cheng nodded, Lao Xu's estimation method is relatively scientific, and the data is reliable.

Chen Cheng scanned the piglet and returned to the laboratory.

Inside, he couldn't wait to call up the system.

"Analyze the growth of piglets."

【Okay】

[Iasi black pig breed, late in the nursery period, survival time of 62 days. At present, he weighs 24 pounds, his growth and development are normal, and he is expected to weigh 124 pounds after 10 months.

"Taste analysis."

【Taste reduced by 2%】

Chen Cheng nodded with satisfaction.

After the actual feeding, his feed formula did not affect the taste when it increased the weight of the Iasi black pigs, and the goal of the last simulation was achieved.

Now the piglet is in the late nursery period, about to enter the fattening period, I believe that it should grow and develop normally.

The growth cycle of pigs is divided into three stages: lactation, nursery and fattening, and the weight growth rate is getting faster and faster.

Therefore, Chen Cheng is confident in the final result.

Now the real experimental results of feed ratio are available, and the goal has been achieved. The next step was to genetically modify the Iasi black pigs. Strive to make farmers in the mountainous areas of Iasi County get rich by raising pigs as soon as possible.

"Comparing the genetic differences in body size between Landrace pigs and Iasi black pigs." Chen Cheng said.

【Okay】

The system quickly extracted the gene strands of the two and compared the genetic differences of each sequence from scratch.

After five or six minutes, the system gave an answer.

[The difference in body size is that the long white pig has a long body, with 16 pairs of ribs, and the Iasi black pig has a short body, with 14 pairs of ribs, and the bone density is large, the bone is formed early, and the later development is longer and the white pig is slow]

The difference in the number of ribs was something Chen Cheng didn't expect, after all, this is a big genetic difference.

This is the biggest reason for the difference in the size of Landrace pigs and Biasi black pigs.

"What other genetic differences are there?"

[Landrace pig has more lean meat, and the meat density is firmer than that of Iasi black pig]

This is easier to understand, Iasi black pig tastes good because of the low density of lean meat and the streaked fat in it.

[Iasi black pig has a 24-hour meat color score of 3.9 and a PH value of 6.8. The water holding capacity was 76.89%, the intramuscular fat content was 9.48%, and the muscle tenderness was 6.66kg (shear value)】

The system continued to give a series of data values, and Chen Cheng also called up the relevant data of Landrace pigs, and found that the meat quality indicators of Iaxi black pigs were better than Landrace pig breeds.

Iasi Black Pork is rich in iron, protein, and vitamins, nutrients that are essential for the human body. In particular, the cholesterol content of Landrace pork is low, and the unsaturated fatty acids in the muscle of black pigs are significantly higher than that of Landrace pigs, especially the content of amino acids is higher, and the nutritional value and health care effect are more.

Iasi black pig has many muscle fibers, small fiber diameter, delicate meat and good taste.

These are the strengths of the Iasi black pig, the trait expression that he must retain in genetic recombination.

After looking at it for a long time, Chen Cheng finally decided to improve the Iasi black pig from the body type genetically.

He intercepted the fragment of the gene that controlled the body size of Landrace pigs and replaced the corresponding gene fragments of Iasi black pigs.

After doing this, Chen Cheng used a supercomputer to start simulating the effect of genetically improved Iasi black pigs.

Generally speaking, the first generation of varieties that have just undergone genetic improvement will definitely have some problems.

In contrast to plants, genetic modification of animals is not a one-time thing. There are many other aspects of genetic interaction that are involved.

For example, the effect of this simulation is that the size of the Iasi black pig has increased, but in the end, the system prompts an error and terminates the simulation.

Extreme Soul Chaos

"What is the reason?"

[The weight of the specimen increased dramatically, causing its limbs to be unable to bear the weight, causing fractures]

"This..."

It means that in the end, the pig is too heavy, and its limbs can't stand the weight of its upper body, and it breaks...

This is a problem that Chen Cheng really didn't expect, so he hurriedly clicked on the 3D image of the landrace pig.

After comparison, he found that the long white pig's thighs were thick, the joints of the limbs were larger, and the soles of the feet were larger.

Genetic influences are interlinked.

After so many years of breeding, Landrace pigs can achieve the current excellent results, which is not a simple matter.

It also took the painstaking efforts of many generations of agricultural researchers.

Of course, because their goal has always been to increase production and weight, they have given up the pursuit of taste.

This is still a little different from Chen Cheng's goal this time.

Chen Cheng edited these genetic fragments again and edited them into the body of the Iasi black pig, and then started a new simulation.

Finally, this time the results are much better.

At least the Iasi black pig was successfully bred for 10 months.

10 months is the goal set by Chen Cheng for himself, and the breeding cycle of Iaxi black pig was about 100 catties a year.

Chen Cheng's goal is to grow to 150 pounds in 10 months.

But when the system reported the final simulated weight, Chen Cheng was still taken aback.

[The culture period is 10 months, and the sample weighs 210 kg]

"210 pounds!"

Chen Chengqiang held back the shock in his heart and clicked on the detailed data.

"How did you reduce the taste by 12%?" Chen Cheng asked suspiciously.

[When the incubation period of the sample reaches 8 months, the body bones of the sample reach the maximum, and the meat density will gradually increase in the later cultivation period]

Chen Cheng understood, that is, the breeding time of genetically improved Iasi black pigs should not exceed 8 months, and the meat quality will become older in the future.

He retraced the simulation process to an 8-month state and found that the weight of the Iasi black pig was 170 pounds, and the taste was reduced by 2%.

This state is the best.

Generally speaking, Landrace pigs fed with feed can reach a weight of about 180 catties in 6 months, while Chen Cheng has achieved a weight of 170 catties in Iasi black pigs after 8 months, which is already relatively good.

After all, Iasi black pigs are fed with green feed, commonly known as hogweed.