Reproduction cycle in carp . Development of eggs in the ovary.

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Presentation transcript:

Reproduction cycle in carp

. Development of eggs in the ovary

. Development of eggs in the ovary

. Parameters affecting the development of gonads

. Parameters affecting the development of gonads

Spawning in temperate and tropical regions

Maturation of carp in tropical regions

Spawning of carp in an natural environment

. Different egg stages

Characteristics of larvae, fry and advanced fry

Parameters controlling reproduction in the natural environment

Parameters important for artificial reproduction

Artificial fertilization under dry conditions

Natural propagation

The Dubish method

Propagation methods for carp

Propagation methods for carp

Semi-artificial propagation

Breeding in hapas

Use of kakabans

Artificial propagation (overview)

Advantages of the artificial propagation of common carp

Different steps in the production of carp

Production in temperate and tropical regions

Staff requirements

Support services

Summary of the mass production of eggs

. Broodstock management

Selection of broodstock

Sex differentiation of broodstock

Broodstock ponds

. Broodstock management in temperate countries

Broodstock management in tropical countries

. Introduction of carnivorous fish to eliminate wild spawning

Broodstock feed

. Broodstock handling

. Broodstock handling

. Transport of broodstock

Tank for broodstock transportation

Injection and stripping of spawners

Injection of gonadotrophic hormones

رابطه میزان هیپوفیز با حداکثر دور بدن کپور ماهیان چینی رابطه میزان هیپوفیز با حداکثر دور بدن کپور ماهیان چینی حداکثر دور بدن( سانتی متر) میزان هیپوفیز(میلی گرم ) به ازای کیلو گرم وزن بدن

Dosage of hormones

. Ginding and preparation of hormone solution

. Summary of the treatments applied in the hatchery to the female spawners

Anaesthesation of the broodstock

Injection of the hormones

Recovery from injection

Suture of the genital opening

Second hormonal injection

Recovery from the second injection, indicator male

Ovulation period in function of temperature

. Selection of ripe females

Cutting of the suture of the genital opening

. Stripping of small females

. Stripping of big females

Summary of the treatment applied to males

Collection of milt

Artificial fertilization and hardening of the eggs

Summary of fertilization and hardening of the eggs

Ratio eggs and milt for fertilization

Fertilization

. Preparation of the fertilizing solution

. Mixing of eggs with fertilizing solution

Swelling process

Preparation of hardening solution

. Procedure for hardening the eggs

Equipment and organization in the hatchery

73. Incubation of fertilized eggs

Water supply

Construction of the water supply (natural temperature)

Construction of a double water supply system

Zug jars

. Incubation of the Zug jars

Flow rate in the Zug jars

Incubation period in function of the temperature

Protection against fungi

Removal of dead eggs

Inspection during the incubation of eggs

Rearing larvae in the hatchery

Summary of the larval rearing

Harvesting of the ripe eggs

Hatching of the larvae

Larval rearing tanks

Stocking of the larvae

Different steps in the larval rearing

Exogenous food

Preparation and distribution of hard boiled egg yolk

Transportation tank

Transport and manipulation of the larvae

Transport in plastic bags

Transport and stocking in the ponds

Collection and storage of hypophyses

Removal of the pituitary gland

Storage of hypophyse