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Japanese koi pond garden pond fish pond rockery hotel pond koi fish pond care, the best koi pond koi pond care with 1, broodstock is used to select broodstock spawning females (female), male (male) fish. Do not do not call broodstock breeding. In some places, also known as broodstock fish species. Selected broodstock is the key to good breeding koi do well. 1 year ago reserved for breeding koi fish, after a winter spent indoors, in late March moved to outdoor ponds feeding. In this case, further selection of broodstock, to get good offspring. As breeding broodstock, generally having infirmity, bright color crystal clear, pure lines, clear varietal character, marginal stain clear and sharp, no virtual edge, unblemished spot, scales smooth and tidy, robust posture swim fins intact and all free of defects. 2. Identification of male and female koi fish to mature age, there is a difference between females and males. In general, the female body stout and plump, abdominal swelling, abdominal swelling labor closer to the more obvious when the head is slightly narrower and longer; males are more slender body and head wide and short, slightly protruding forehead . Chest rounded ends of the female; the male fin slightly pointed ends. In the reproductive season, the difference between the female and the male is more obvious, the first male pectoral fin and gill covers a number of white granular appear small protrusions called "Starchaser" Starchaser disappear after the spawning season. Male genital pore small, concave, milky semen hand soft reduction; female genital opening wider and flat, slight protrusion of the hand Gently press the abdomen grain escape. When Koi breeding, the number of male and female broodstock with adequacy, the level of relations with egg fertilization rate significantly. In order to ensure adequate sperm count, improve egg fertilization rate, female and male with the ratio should be 1: 3 (one female and three males composed of a group) or 1: 2 or 2: 3, the effect better. If a small number of males using male and female fish with ratio of 1: 1 are also available. 2 to 3 years old female koi, gonad just mature, strong enough reproductive function, and thus less brood, eggs are also small, hatched larvae easily dysplasia, generally were not selected as broodstock. Breeding-age females are generally in the 4-10 age; and also in males over age 3 to 5. Such broodstock, infirmity, gonads full, strong egg and sperm motility, fertilization and hatching rate are high, used as broodstock is ideal. Tel: 13600056669 13380045041 QQ: 471987602 Taobao http://hwychen.taobao.com URL: www.w6669.com