Separate litters, one-to-one separate breeding, are of course an important means of preventing inbreeding.

But in Zhang Ran's opinion, it is far from enough!

Only by improving the diversity of rabbit genes as much as possible can we breed the next generation with higher resistance and healthier ability!

This point does not need to be understood by Zhang Ran from the little bit of half-understood cognition of genes in his stomach, as long as he thinks about the average person who grows up to be a little more eye-catching than those who are multiracial mixed-race, you can get enough proof.

"Let's catch some hares and mix them with these breeding rabbits!" Zhang Ran commanded.

"Huh?"

Wang Wenhua, who is as familiar with the fierce temperament of the hare as Zhang Ran, was entangled: "Can this be done?" I haven't seen any of those hares that I can feed! ”

"I know this!"

Zhang Ran said with a smile: "Of course, it is difficult to feed hares, but if these hares are mixed in these rabbit species, the best rabbits to catch are small rabbits. ”

As long as there is a hare that can be fed, the genes of these breeding rabbits can become more diverse!

It would be great if we could use these breeding rabbits to eventually train a few more hares.

Not only can the possibility of inbreeding of breeding rabbits be reduced to a minimum, but also increase the source of more breeding rabbits, and the large-scale development of rabbit farms can be formed faster.

The sooner the common people and the soldiers had more meat in their recipes, it could have had more impact on this war.

Of course, if rabbit meat is eaten in excess, it may cause rabbit syndrome - Zhang Ran is directly immune.

The extreme situation that can only occur when you don't eat anything else and only eat rabbit meat can only exist in legends.

Eating rabbit meat ten times or eight times a month can't really make much of a difference.

And if you can replenish the meat ten times or eight times a month, and then add some chicken and eggs sporadically, etc., Zhang Ran believes that this is enough to solve the problem of physical strength and endurance caused by the lack of physical nutrition of the soldiers and ordinary people in the detachment.

As long as you are in good physical condition, you will definitely have more chances when you encounter enemies!

Wang Wenhua nodded, and while recording in the small notebook, he said that he had written it down.

"Over there in the new rabbit house, let Lao Zheng find a way to pay attention!"

Zhang Ran pointed to the gap in the wooden door of the rabbit pen and said: "The big teeth of the rabbit are not vegetarian, I don't want these rabbits to gnaw the door one day and not find it, and all the rabbits that have been raised hard to raise at night have run away, and the loss will be great......"

"Don't worry, captain, I'll tell the carpenter Lao Zheng here!"

Wang Wenping nodded, and recorded it in the notebook again!

"It's a pity ......"

Zhang Ran glanced at Wang Wenhua with pity, and said in his heart that with this guy's rigorous and studious attitude, if he hadn't been born in this era, he would definitely be a good seedling for scientific research and development in the era of peace, but now he has to use such a good seedling to raise chickens and rabbits, which is really overkill.

After dealing with the matter here, Zhang Ran immediately went to the back mountain.

"Hello Captain!"

Among the several established sentry posts, there are militiamen on duty, as soon as they see Zhang Ran coming, they will stand up and salute and greet them.

Zhang Ran's leader praised a few words, asking the militia to make persistent efforts, strengthen their vigilance, and not relax their vigilance because there is no danger here, otherwise when the real danger comes, there will be no way to immediately discover the danger, thus endangering themselves, endangering the safety of the two ordnance workshops in the back mountain, etc., and then leave.

When you enter the back mountain, you can't get around the blacksmith shop of Niu Da.

Niu Da was very unhappy and ignored Zhang Ran a little.

As a professional blacksmith, Niu Da felt that at his level, he should definitely use better steel to create more useful things, instead of wasting time on these broken copper and rotten iron all day long.

In the past, there was no way to have good steel, but now the detachment has obviously scavenged a large number of good steel but does not use it, and Niu Da is in a very bad mood.

"Brother Niu, I know you want to build something better and contribute to this war for the detachment as soon as possible, but isn't the time yet ripe?"

Zhang Ran put his arm around Niu Da's shoulders to comfort him, and then said: "Now you first use these broken copper and iron to persevere, continue to practice your craft, and bring a few more apprentices out, I promise you that by this time next year at the latest, the high-quality steel in our detachment will be piled up into a mountain, and then you will not only help make some farm tools, grenade shells and the like, but also build rifles, grenadiers, and even artillery fire - I'm afraid that you won't be able to lift your tired waist by then......"

"Really?"

Seeing Zhang Ran's expression, Niu Da suddenly said with a solemn look on his shoulders: "As long as I can play more useful things to clean up the little devils, I am not afraid of being tired, even if I am tired, I will be happy......

Within a workshop.

Mao Drill and a few clever apprentices were carefully scraping out the gunpowder from several disassembled bombs with small wooden sticks.

The cave is warm in winter and cool in summer, and the area where they work is close to the entrance of the cave, and the wind is constantly pouring in, and it is even a little cold.

But because they were engaged in the highly dangerous dismantling of the bomb, several people were highly nervous, their foreheads were covered with sweat, and they were so engrossed that they didn't even notice that Zhang Ran appeared.

Even when Zhang Ran saw this scene, his heart couldn't help but hang, and he didn't dare to breathe loudly - this is really fighting for his life!

Think of those bomb disposal experts decades later, wearing protective suits armed to the teeth and dismantling bombs, all of whom were loudly praised and hailed as heroes.

But Mao Zuan and others have no protection at all, and they don't even have special tools to disassemble the bomb like this, and the danger is a hundred times higher than that of those bomb disposal experts? But the praise received is pitiful......

Looking at Mao Diamond, I remembered the silent dedication of the heroes who paid for this national war of resistance under the same difficult conditions and at the risk of their lives. Zhang Ran couldn't help but feel a little sour in his nose.

If it weren't for the countless unsung heroes like this, where would there be a nation rising again decades later? Where is the glory of the Chinese nation again?

Thinking of this, he had the urge to strangle those daily miscellaneous spirits!

This kind of scum is simply stepping on the bones of the martyrs, enjoying the beautiful life that the martyrs fought hard to scold their mother!

"Captain, why didn't you make a noise when you came?"

The hair drill that finally finished disassembling a small stink bomb breathed a long sigh of relief, and several apprentices also breathed a sigh of relief, and they looked like they were drenched in sweat as if they had just been fished out of the water, and it was only at this time that they discovered Zhang Ran's existence.

"It's so hard for you to do such a dangerous job!" Zhang Ran thanked him from the bottom of his heart.

"Captain, isn't it more dangerous for you to take the brothers of the detachment to fight devils?"

Several apprentices laughed: "As long as we are careful, there is no big problem, compared to the captain, we are much safer......

Although a few apprentices said it easily, Zhang Ran knew that it was completely different.

Working here, your life can be in danger anytime, anywhere!

Although it is also dangerous to fight abroad, as long as you don't encounter the enemy, it is safe, and you don't have to be nervous all the time.

Anyway, as far as Zhang Ran is concerned, he would rather lead the team to fight with the devil puppet army outside than engage in such work.

He was afraid that his nerves would be so tense all the time, maybe one day he would not be able to bear the pressure and collapse directly!

Zhang Ran squatted down, sniffing at the little bits of explosives that several people had just scraped out of the bomb, and there was no additional reaction except for the pungent nose.

“. T explosives! ”

Zhang Ran nodded.

There are probably two types of explosives used to load shells at the moment, one is picric acid, and the other is the one in front of you, TNT.

What Deng Fang said before was nitrified with explosives purified from coal tar is picric acid.

Picric acid reacts easily with metals, and is no problem when used to load shells after special treatment, but it is not suitable for propellants or boosters. T is it.

The reason why he sniffed his nose was that Zhang Ran, a guy who may not know as much about explosives as Mao Drill, could be sure that this was not picric acid, but simple.

Bitter acid is poisonous, and if you suck it so hard, it's easy to get nauseous.

Since there is none,. T up!

“. The performance of T is extremely stable, there is no open flame, no external force, and it is not easy to explode! ”

Zhang Ran pointed out: "Like you, scraping with a branch, not to mention the low efficiency of taking medicine, it is easy to explode, it is better to change the method!" ”

"So what else can you do?" Mao Diamond asked.

"Dry steaming across water!"

Zhang Ran said firmly!

. T is an extremely famous explosive, known for its stability and power.

Not only now, but even decades from now, it is one of the best explosives.

Therefore, Zhang Ran is also very familiar with the performance of this explosive.

When the temperature reaches 240 degrees or more, . T will explode, but its melting point is very low, it will melt in less than 100 degrees!

And as we all know, the temperature of boiling water is more than 100 degrees. T melted!

Letting the explosives melt and pour them out directly is much more time-saving and labor-saving than such a little bit of picking, and it is much safer.

"Then I'll try!"

Hearing Zhang Ran's proposal, Mao Ran said happily.

"You must pay attention, you must not get close to an open flame, and at the same time, you must dry steam it through water, otherwise if too much water enters the explosives, it will be a trouble to dry, maybe it will be blown up because of an accident, understand?"

Zhang Ran explained that as for the specific operation, he believed that Mao Diamond and the apprentices he brought were definitely more professional than he was going to come.

Thinking about it this way, Zhang Ran felt like a typical waste who is invincible in the world when he talks about it, and has a weak heart when he starts his hands.