What are the characteristics of carp spawning?

Carp usually lay eggs in spring, and the female fish's abdomen is soft and round during the breeding season, and the anus and reproductive pores are large and slightly red. The abdomen of male fish is small, gill cover, chest and ventral fin have obvious accessory characteristics of "idolization", anus and genital hole are sunken, not red and swollen, and milky semen flows out when the abdomen is lightly pressed.

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