Inheriting a dilapidated ranch in North America, he became a billionaire through animal taming and t

Chapter 105 First Generation Purebred Breeding, Gene Pairing Execution

Su Chen glanced at the schedule and saw that it listed fifteen pairings.

Each group corresponds to one cow and one bull.

The mating order is determined according to the cow's estrous cycle.

The breeding area was thoroughly disinfected a day in advance.

We sprayed the floor, walls, railings, and guardrails with disinfectant.

Rinse it clean with water, and finally turn on the ventilation system to dry it.

On the day of mating, Su Chen, Ben, and Emma entered the breeding area.

The first pairing was N-12, with a cow in the best estrus state.

The cows were led out of the gestation area and walked along the clear path to the mating area.

The cow was quiet, following Ben without struggling or making a sound.

N-12 is already waiting in the breeding area's cubicle.

Ben led the cow into the enclosure and closed the door.

Su Chen stood outside the observation window and watched.

Emma stood to the side with her notebook.

The operation was very standardized, with no rough handling throughout, and neither the cow nor the bull showed any signs of stress.

After mating, the cow was led back to the gestation area and put into a separate compartment.

The mating area was disinfected immediately.

I used disinfectant to spray the floor and walls.

Rinse it clean with water and then turn on the ventilation system to dry it.

Group 2, Group 3, Group 4...

Do it in groups, and thoroughly disinfect after each group is bred.

Eight pairings were completed that day, and all pedigree numbers and mating times were registered.

After organizing the breeding records, I handed them to Su Chen for confirmation.

Su Chen looked at the pairings and saw that all eight pairs of bulls were N-12.

The cow's number, estrus cycle, and mating time are all clearly marked.

"The remaining seven sets tomorrow will be paired with N-07 and N-15."

"Genetic diversity must be guaranteed; we cannot rely solely on N-12."

This person nodded and marked it on the schedule.

The remaining seven pairings were completed on the second day.

Group 3 uses N-07, and Group 4 uses N-15.

The number of matings for each bull is evenly distributed to avoid overuse of any one bull.

After the last group of matings was completed, the mating area was thoroughly disinfected again.

Then seal it off and leave it to stand still, and do not use it again.

Su Chen stood outside the breeding area and looked at the equipment inside through the observation window.

The shelves in Baoding have been put away, the disinfectant has been put away, the ground is dry, and the air is fresh.

The temperature control system settings were adjusted in the breastfeeding area.

The temperature was increased by one degree, and the humidity was kept at around 60%.

"In the early stages of pregnancy, the environment is sensitive, and the temperature and humidity must be stable."

"Large temperature differences can easily lead to miscarriage, and high humidity can easily breed bacteria."

Su Chen adjusted the feed formula.

The proportion of protein and vitamins has been increased, while the carbohydrate content has been reduced.

After the formula was adjusted, the feed became darker in color and smelled like soybeans.

In each cow's compartment, mineral licks were placed.

Electrolytes and probiotics were added to the water.

"Licking bricks replenishes trace elements, electrolytes prevent stress, and probiotics regulate the gut."

This notebook records the dosage and usage of each additive.

"These things can only be used on breeding cattle; they are too expensive for ordinary cattle herds."

Su Chen nodded.

"For breeding area only, not for public use."

Emma meticulously recorded each cow's feed intake, water consumption, activity level, and rest duration.

Summarize the results daily and plot them as a line graph.

The graph was hung on the wall of the maternity ward, and Su Chen came in to look at it once a day.

For the first two days, the cows' feed intake decreased slightly.

This is supposed to be a normal phenomenon, a stress reaction after mating, and it will recover in a couple of days.

On the third day, the child's food intake began to increase, water intake returned to normal, and activity level stabilized.

We perform an ultrasound on the cow every day, although it's still too early to tell if she's pregnant.

However, the uterus and ovaries are in good condition, with no inflammation or abnormalities.

Su Chen checked the backup power supply and the temperature control system.

The diesel generator is started up for trial operation once a week.

The fuel tank should always be kept at two-thirds full or more.

The filter of the constant temperature system should be cleaned once a week.

I personally took it apart, washed it, dried it, and then put it back together.

The breeding area was closed and left to stand still for a week and was not used again.

Su Chen patrols the breeding area once a day.

Check the condition of the cattle, inspect the equipment, and confirm that there are no abnormalities.

I come here once every afternoon.

An ultrasound, temperature check, heart and lung auscultation, and stool examination were performed.

Emma updates her record once a day.

Fill in the data for each cow into the table, and the line on the graph will slowly rise.

A week later, Ben reorganized the breeding records and pedigree files.

It was compiled into a book called "The Lineage Chart of the Sunset Divine Cow".

The pedigree chart begins with the three top-grade breeding bulls: N-12, N-07, and N-15.

It connects down to fifteen cows.

Further down the line, there is space reserved for the first generation of purebred calves.

Su Chen flipped through it; the genealogy chart was very detailed.

Each cow's identification number, purity, and genetic stability.

Meat quality score, mating time, and expected calving date.

It's all on top.

"The genealogy chart is kept strictly confidential and will not be disclosed to the public."

Su Chen locked the genealogy chart in the safe in his study.

Keep it together with the key to the breeding area.

The first generation of purebred breeding has been completed, and the breeding period has begun.

Su Chen stood outside the breeding area and looked at the nursing area through the observation window.

The cows stood quietly in their compartments.

Some were eating grass, some were drinking water, and some were lying down resting.

everything is normal.

......

This is calculated based on the mating time.

It's time to start early pregnancy testing.

We brought the ultrasound machine into the breeding area in advance.

The ultrasound machine is for veterinary use and is not large; it can be put in a suitcase.

Place the machine on the operating table in the breastfeeding area, connect the power, and turn it on to preheat.

The first cow to undergo a pregnancy check was the one that was first bred.

He walked into the cubicle.

The cow was standing in front of the trough eating grass when she saw Ben come in.

He just looked up at it, then lowered his head again to continue chewing.

The coupling gel was applied to the right side of the cow's abdomen.

Place the ultrasound probe on the surface and move it slowly to locate the uterus.

A blurry image appeared on the screen.

The angle and depth of the probe have been adjusted.

The image gradually became clearer.

An oval-shaped dark area appeared on the screen.

It has smooth edges and good internal sound transmission.

"Gestational sac".

He pointed to the dark area on the screen and said to Su Chen.

"The position is normal, the shape is regular, and the size is consistent with the number of days."

Ben then measured several data points on the screen and compared them with the standard values.

"The embryo is developing normally, and the heartbeat can be seen. It beats more than 70 times per minute, which is within the normal range."

Su Chen stared at the screen for a few seconds.

That tiny gestational sac trembled slightly on the screen; that was a heartbeat.

I took a screenshot of the ultrasound image and saved it to the machine.

She also wrote down the number, date, gestational sac size, and heart rate in the logbook.

"The first pregnancy has been confirmed, and the embryo is developing normally."

Su Chen nodded and ticked it off in the notebook.

The second cow was led into the operating area.

The same steps were followed: apply coupling gel, attach the probe, and locate the uterus.

Another gestational sac appeared on the screen.

It's slightly smaller than the first one.

However, it has a regular shape and smooth edges.

The measured data was compared with the standard value.

"Size and size match the expected gestational age, heartbeat normal, conception confirmed."

The third head, the fourth head, the fifth head...

I checked each end one by one.

Each time a head was confirmed, Su Chen would put a checkmark on his notebook.

When they checked the eighth head, Ben searched the screen for a long time but couldn't find the gestational sac.

He changed the angle several times and adjusted the probe depth, but still nothing.

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