CATDOLL : CATDOLL: What are the technical points of clam seed cultivation?

What are the technical points of clam seed cultivation?

The most common type of clam is the tetrapod clam, commonly known as the white clam, which lives in the ground and is widely distributed along the coast of my country.

During the peak breeding season, select 2-year-old shellfish with a size of 4 to 5 cm, and after selection and washing, store them for spawning. The best way to collect eggs is to dry them in the shade for about 4 hours, put them in still water for 2 hours, and then put them in 0.025% ammonia seawater. After the parent shellfish are discharged, they are immediately moved to a new pool for discharge, so that the eggs and sperm produced are not affected by the ammonia seawater. According to experience, the effect of inducing spawning is better after the parent shellfish have been cultured for a period of time during the peak breeding season, and the induction rate can reach 60% to 80%.

Because it is easy to cause too much sperm when the broodstock discharge, which affects the hatching of embryos and deteriorates the water quality of the nursery, it is generally necessary to wash the eggs 2 to 3 times to improve the hatching rate. The time required for embryonic development shortens with the increase of temperature. At 15-30℃, the hatching time is 60-10 hours, but the hatching rate decreases with the increase of water temperature. Generally, it is best to choose around 20℃. After reaching D-type larvae, selection and breeding are carried out. The suitable conditions for larval breeding are seawater salinity of 13-33 and water temperature of 18-23℃. The growth is faster and the development is better. For the selected larvae, only water is added in the first three days, and it is constantly stirred or aerated, and then the water is changed every day. Feed with Isochrysis, Triangle Brown Finger Algae and Mou's Horned Algae, with a daily feeding amount of 10,000 to 60,000 cells/ml. Feed in 2 to 4 times, and increase with the development of the larvae. When the shell is 130-145 microns long and the larvae enter the late stage of the shell top and metamorphosis, yellow sand is put in as the substrate. The yellow sand has been fully cleaned and disinfected in advance. When changing the water, the substrate dirt should be sucked out to prevent substrate pollution; after changing the water every day, a mixture of flat algae and golden algae is fed. When the juveniles grow to 1.2 mm, the water inlet pipe is formed, and its length is about half of the outlet pipe; when it reaches 0.5 cm, it can be taken out of the pond for intermediate cultivation.

How did Fengdie die in Blasphemy? In which chapter of the novel was it? Can anyone tell me? Thanks!

Volume 15 Crime and Punishment Chapter 2 Crime and Punishment

content:

After these more than 10,000 fresh troops entered the Cloud City, the first line of defense of the Druids collapsed in an instant. However, in the center of the Cloud City, there were an astonishing number of stone giants wandering back and forth. Under the cover of the stone giants, the high-level Druids could cast magic calmly. Although the failure rate of their magic was astonishingly high, once it succeeded, whether it was the rain of thorns or the scorching rays, it would immediately send more than a dozen imperial soldiers to the realm of the god of death.

However, the druids' happy times were short-lived.

The dancing inky circular saw was like a night elf, weaving pictures of the night landscape.

And the painter who is painting is enough to make all the scenery pale in comparison.

The inky full body armor concealed her face, leaving only her long light golden hair fluttering in the breeze.

Her every move was filled with indescribable elegance and beauty. It didn't matter whether one could see her face or not, as she herself was a symbol of stunning beauty.

It is also a symbol of death.

The black figure moved among the stone giants, dodging the giants' stone fists by the tiniest second, and calmly dismembered the high-level druids one by one with a circular saw.

Behind her was a tide of imperial warriors.

I don't know if it was because of her, but the warriors' eyes were bloodshot, their roars were like thunder, and they were fearless. From time to time, a dwarf slave warrior would yell meaningless curses, wield a huge war hammer, and crash into the stone giant!

The next moment, they would often end a life of blood and fire, and the reward they received was a huge stone falling from the stone giant.

The druids' second line of defense finally had a gap. The roaring imperial warriors followed the dancing dark elves closely and charged into the center of Cloud City.

Dang! It was hard to tell whether the clear and melodious sound came from the pale golden sword or the inky circular saw.

A tall golden-armored warrior appeared in front of the dark elf. The sword in his hand danced into a pale golden light curtain, firmly blocking her way.

This was a tall and wide hall. It looked very suitable for a battlefield, at least Elvis's huge body could move freely. He held a giant sickle in each hand, bypassed the dark elves and golden armored warriors fighting in the center, rushed into the imperial army soldiers, and slashed them wantonly!

The dark elf felt the blood in her body boiling, and the painful burning sensation made her extremely thirsty. The inky circular saw had attacked countless times, but was blocked by the pale golden sword every time.

She could no longer suppress the raging black flames in her soul!

The dark elf suddenly let out a clear and sharp scream, and the circular saw in his hand suddenly accelerated!

Countless metal collision sounds intertwined and merged into a long and clear collision sound.

The sound was still echoing in the hall, and the pale golden sword had already flown into the air. Then it suddenly exploded, and tiny sharp metal pieces flew everywhere like rain.

The tall golden-armored warrior was staggering, his helmet having been gently taken off by the dark elf.

The dark elf clung tightly to the warrior's back, like a couple who could never get enough of each other's company. Her slender hands were gently caressing the warrior's face, and the huge circular saw in her right hand trembled slightly, leaving a barely perceptible trace of blood on the warrior's throat.

Next, the dark elf gently laid the golden-armored warrior's completely powerless body to the ground.

At that moment, she saw his face clearly.

Bang! The huge circular saw fell to the ground.

The dark elf knelt gently beside the warrior and took off his helmet tremblingly.

The magic patterns on her face, filled with a strange dark beauty, had not yet faded, but this did not in the least detract from her unparalleled beauty.

Her golden hair swept across the warrior's face. He was still as handsome and resolute as he was in the Green Sea.

A glimmer of life flashed across his eyes, and his gaze fell on the dark elf's face. A smile appeared at the corners of his lips that had lost all their color.

His lips opened and closed slightly, and every movement caused a pool of tiny blood bubbles to emerge from the wound in his throat.

The dark elf listened carefully, and only then did he hear the few words he uttered with his last bit of strength: "Fengdie...you are still...so beautiful..."

"Lafite..."

Looking at his lifeless eyes, Fengdie didn't know which Fengdie he saw in the previous moment?

Is it the elf girl riding the white tiger back then?

Or is it the dark elf who now controls the death wheel saw?

There were no tears in her eyes, her pupils were sometimes clear, sometimes cloudy. Her thoughts were also in extreme confusion, and the past that had been buried deep in her memory for a long time kept coming up, and then bursting in an instant like bubbles on the sea.

A faint black mist suddenly enveloped Fengdie, and the strong dark aura immediately enhanced the power of the dark curse. All the scenes that Fengdie saw in her memory shattered one by one and gradually disappeared into the depths of her consciousness.

"Poor child, wake up from the darkest nightmare!" An old voice suddenly sounded, and then a light green beam of light fell from the sky, covering the dazed Fengdie.

"Stop!" Rogge's angry roar suddenly came from the entrance of the hall!

The light green light temporarily suppressed all the dark forces in Fengdie. Under the powerful magic of the druid elder, Fengdie turned back into the pure elf in the green sea.

Even if it was only for a brief moment.

All the past events flashed through her mind like lightning and thunder...

She looked at the warriors fighting desperately around her, at the druid elder who was so old that he seemed unable to walk on the other side of the hall, at Elvis who was roaring in battle, and at Rogue who was trying to rush towards her at the door of the hall.

Fengdie lowered her head and looked at the warrior at her knees again. He still had that last smile on his lips.

She took off the golden gauntlet on her right hand, revealing her slender hand as white as ice and snow. Each fingertip was adorned with a dark purple nail.

She smiled sadly.

That little finger silently passed over the icy throat...

Fengdie, the most beautiful elf in the green sea, finally fell on her former lover.

Rogge strode to Fengdie and stared at the elf who seemed to be asleep. There was only a faint black line on Fengdie's neck, and not even a drop of blood had seeped out.

Each of her nails is not only sharp, but also extremely poisonous.

Under the druid's natural purification, all the dark forces in her body were suppressed, and the elf's pure and weak body could no longer resist such a poison.

"Why..." Rogge's eyes were bloodshot as he stared at the old druid on the other side of the hall and asked in a low voice, "Why did you want to dispel my dark fog!"

The Druid elder looked at the eternally sleeping Fengdie and Ramsfield with regret, and sighed heavily: "They have restored the holiness and elegance of the elves. This is a good ending for them..."

"If it weren't for your damn natural purification, she wouldn't have committed suicide!" Roger roared.

"It is better to die in freedom and clarity than to be lost and perish in darkness all your life!" the Druid elder said slowly.

Rogge grinned and said, "You kill people in a variety of ways... Very good!"

After a pause, Roger suddenly shouted: "Then you can die in freedom and clarity!"

He suddenly picked up Fengdie's ink-colored circular saw and threw it towards the ground with all his strength!