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Novel method for cultivating large free pearls by pinctada maxima

A technology for free pearls and mother-of-pearl, applied in application, climate change adaptation, fish farming, etc., can solve the problems of low pearl yield and low retention rate, achieve strong nacre secretion ability and increase retention rate , the effect of effective use

Active Publication Date: 2021-08-06
BEIBU GULF UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cultivation of large free pearls mainly involves the following problems: the adductor muscle and foot contractor muscle of the large pearl oyster are strong and powerful, the adductor muscle is easy to squeeze out the implanted bead nucleus, and repeated stretching of the foot contractor muscle will also lead to implantation. The bead nuclei were extruded out of the nuclei, resulting in a significant reduction in the rate of nuclei after nuclei implantation and a low pearl yield

Method used

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  • Novel method for cultivating large free pearls by pinctada maxima
  • Novel method for cultivating large free pearls by pinctada maxima
  • Novel method for cultivating large free pearls by pinctada maxima

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Selection of pearl oysters: choose shells with a length of 12.0 cm, a shell age of 2.0 years, complete double shells, smooth and clean shell surfaces with few attachments, strong growth of outer scales on the edge of shells, no delamination and shedding of cuticles, and no diseases. Healthy pearl oysters are used as pearl oysters (planted oysters); among them, the first seeded pearl oysters are 2.0-year-old shellfish, the second seed-planted pearl oysters are 3.5 years old, and the third seed-planted pearl oysters are 5.0 years old;

[0037] (2) Selection of small oysters: choose the 2.0-year-old large pearl oysters that are in the rapid growth period as small oysters. Small oysters also need to choose large oysters with good vitality, health and no defects, and the nacre inside the shell is golden yellow or silver white. Pearl oyster is used as a small piece of shellfish, and the length of the small piece of shellfish is 12.0cm;

[0038] (3) Selection of bead core...

Embodiment 2

[0049] (1) Selection of pearl oysters: select shells with a shell length of 13.0 cm, a shell age of 2.0 years, complete double shells, smooth and clean shell surfaces with few attachments, strong growth of outer scales on the edge of shells, no delamination and shedding of cuticles, and no diseases. Healthy pearl oysters are used as pearl oysters (planted oysters); among them, the first seeded pearl oysters are 2.0-year-old shellfish, the second seed-planted pearl oysters are 3.5 years old, and the third seed-planted pearl oysters are 5.0 years old;

[0050] (2) Selection of small oysters: choose the 2.0-year-old large pearl oysters that are in the rapid growth period as small oysters. Small oysters also need to choose large oysters with good vitality, health and no defects, and the nacre inside the shell is golden yellow or silver white. Pearl oyster is used as a small piece of shell, and the length of the small piece of shell is 12.5cm;

[0051] (3) Selection of bead cores:...

Embodiment 3

[0062] (1) Selection of pearl oysters: choose shells with a length of 14.0 cm, a shell age of 2.0 years, complete double shells, smooth and clean shell surface with few attachments, strong growth of outer scales on the edge of shells, no delamination and shedding of cuticles, and no diseases. Healthy pearl oysters are used as pearl oysters (planted oysters); among them, the first seeded pearl oysters are 2.0-year-old shellfish, the second seed-planted pearl oysters are 3.5 years old, and the third seed-planted pearl oysters are 5.0 years old;

[0063] (2) Selection of small oysters: choose 2.5-year-old large pearl oysters that are in the rapid growth period as small oysters. Small oysters also need to choose large oysters with good vitality, health and no defects, and the nacre inside the shell is golden yellow or silver white. Pearl oyster is used as a small piece of shellfish, and the length of the small piece of shellfish is 13.0cm;

[0064] (3) Selection of bead cores: se...

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Abstract

The invention relates to the technical field of pearl cultivation, in particular to a novel method for cultivating large free pearls by pinctada maxima. The novel method mainly comprises the following steps of: cutting off 30-40% of retractor of pinctada maxima pearl cultivating shells, reducing the extrusion strength of the retractor on pearl nucleuses, implanting only one perfect circular pearl nucleus at a left bag nucleus position for the first nucleus implantation, and during the second and third nucleus implantation, implanting one pearl nucleus at the left bag nucleus position and a right bag nucleus position respectively. The pinctada maxima belongs to rare protected species, in order to make full use of the pearl cultivation potential of the pinctada maxima, nucleus implantation is carried out three times in total, and meanwhile, the diameter of harvested pearls is 2.0-3.0 mm larger than that of pearls obtained in the previous step every time nucleus implantation is added; and by adopting the nucleus implantation cultivation method, the pearl cultivation capacity of the pinctada maxima is utilized to the maximum extent, the survival rate, the nucleus remaining rate and the superior pearl rate of the pinctada maxima are increased, and large free pearl industrial cultivation of the pinctada maxima can be achieved.

Description

【Technical field】 [0001] The invention belongs to the technical field of pearl cultivation, and in particular relates to a new method for cultivating large free pearls from Pinctada maxima. 【Background technique】 [0002] Pinctada maxima Jameson (Pinctada maxima Jameson), also known as white butterfly oyster in my country, is divided into two types according to the color of its mantle and the color of the inner surface of the shell abroad, commonly known as Silver lip pearl oyster (Silver lip pearl oyster) and Golden lip pearl oyster belongs to tropical and subtropical large shellfish, its adult shell length can reach 32.0cm, and its weight can reach 4.0-5.0kg. It is distributed in Guangdong, Guangxi, Hainan, Xisha Islands, and Taiwan waters, and it is distributed in the Indo-West Pacific worldwide, including a certain number of coastal waters of Australia, Indonesia, Malaysia, the Philippines, Myanmar, Vietnam and other countries. . Large pearl oysters are relatively large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/56
CPCA01K61/56Y02A40/81
Inventor 白丽蓉喻达辉王培郭颖
Owner BEIBU GULF UNIV
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