Some farmers would like to breeding goldfish, farmers learning the knowledge of goldfish breeding in the process of breeding goldfish.
If you want to accurately identify the goldfish the female or male, in addition to the grasp of the book introduces the basic essentials, but the main thing is in the process of long-term feeding careful observation of the external morphology of the different varieties of goldfish, swimming in the differences and different periods of goldfish external morphologychanged.
Female or male goldfish to distinguish from the following aspects:
(A) The external form of the difference between:
Shape difference: (1) the general shape of the male goldfish slightly longer, female goldfish body is short and round. The fecundity of females than males and abdominal swelling.
(2) The difference of the caudal peduncle: male female is slightly thick.
(3) The difference of the pectoral fin: careful observation can be found in the male a little long and pointed, pectoral root Ray more stiff; females was short round, the first root of pectoral fin thorns too hard.
(4) The difference between cloaca: the belly to the point of view, the male cloaca is small and narrow, concave; female cloaca slightly rounded outward convex.
(B) The color difference between: male and female goldfish, slightly on the body color differences, the male generally brightly colored, while the female is slightly lighter in the reproductive development of male body color is more bright.
(C) The feel and movement of the male abdomen: hand light care of the fish’s abdomen, middle and ring fingers feeling an obvious hard-wire the female abdomen is relatively soft. Through the fish pond edge, fierce stepping observation, the male swimming speed and agility, female movements are slower.
(D) Starchaser: as temperatures rise, the goldfish in the spawning period there will be the second feature – Starchaser, which is to identify goldfish sex is the easiest, most accurate, but also the most easy to grasp as a unique identifier. Starchaser of the male’s pectoral thorn and opercular edge for a long time, the entire pectoral fins on each fin long Starchaser, the apparent front-end, behind the carefully observed. This rough white spots Starchaser.
Use of the above to identify, must also rely on many years of breeding experience and usually look carefully, in order to accurately identify the goldfish male and female.