The excretion of the gamete's body into the surrounding water is called "spawning" and results in fertilization. Fish lay eggs during a specific period of the year, which is consistent with some environmental factors available only during that period. 27янв. 2014г.
What is spawning in aquaculture?
Spawning. Seed reproduction must ensure species survival (see Figure 1.1). Oocyte development is a long process that occurs over a relatively long period of time, with spawning occurring at optimal moments for survival, such as fry, abundant food, and shelter (see Figure 1.2).
How long does it take for a fish to lay eggs?
When a carp begins to lay eggs, it can start and end in a few days or a week or two if the water temperature remains constant. However, in situations where the water temperature fluctuates significantly, this process can be elicited over several months.
What triggers the spawning of fish?
Spawning triggers are clues to the environment in which marine animals breed. Most commonly, it is accompanied by sudden changes in the environment, such as changes in temperature, salt content, and food abundance.
What is the breeding season for fish?
Fish mature in a pond in 2 years. The breeding season is usually from May to July. Breeding animals are raised in ponds along with other major carps. For induced breeding, the selected breeding animals are stored in the hatchery's spawning aquarium with a female to male ratio of 1: 2.
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