FACTORS RELATED TO FISH BREEDING

FACTORS RELATED TO FISH BREEDING

1. FACTORS RELATED TO FISH BREEDING

2. At a glance

3. WHAT IS BREEDING ? Breeding is sexual reproduction that produces offspring, usually animals or plants. Fish breeding is the breeding of fish.

4. FISH BREEDING REQUIREMENTS

5. TYPES OF FISH BREEDING Two types- Natural Fish Breeding: Instinct breeding in natural breeding is known as natural fish breeding. Artificial Fish Breeding: The breeding method by controlling environment and artificially inciting male and female fish is known as artificial fish breeding.

6. Which factors related to the fish breeding

7. Influence on Endocrine Control: Changes in environmental variables are transduced into effects on reproductive processes through the hypothalamo –pituitary–gonadal (HPG) axis. This begins with hypothalamic synthesis and synaptic release of peptide gonadotropin-releasing hormones ( GnRH ) onto the gonadotropic cells of the pituitary gland, where they stimulate the synthesis and release of FSH & LH hormone. FSH is involved in stimulating the early stages of gamete development and LH in the control of maturational events

8. Physiological Factors : Physiological factors including nothing but the hormones. Hormones govern, Migration Timing of reproduction Morphological changes Mobilization of energy reserves Elicit intricate courtship behavior

9. Ecological factors: Temperature Photoperiod Periodicity Tides Latitude Water depth Substrate type Salinity Exposure

10. NUTRITION STATUS OF THE FEMALE: Lot of nutrients involved in the influence of spawning in fishes. They are, Protein Lipid Carbohydrate Vitamin Minerals

11. ENVIRONMENTAL FACTORS:

12. Conclusion There are many factors have been identified as factor influencing spawning, egg quality and reproductive performance of fish. All of the factors are play a vital role in the spawning, egg composition , gonadal development, egg quality and reproductive performance of fish directly and indirectly. All the factors mentioned above should be in a limit range for successful reproduction .