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双背鲫鱼产于豫北淇河中段,故又称淇河鲫鱼。双背鲫鱼与一般淡水鲫鱼不同,一般鲫鱼鳞色灰黑,而双背鲫鱼色则略呈金黄,和鲤鱼相似;一般鲫鱼公母数量大致平衡,而双背鲫鱼“ 10鱼9母”,是典型的母系家族;一般鲫鱼体型扁平清秀,个小体轻,重不过0.5公斤左右,而双背鲫鱼体型丰满浑厚,个大体壮,重的高达2.5公斤上下;一般鲫鱼为2倍体鱼类,而双背鲫鱼为罕见的三倍体鱼类,脊背厚度为一般鲫鱼的2倍,似有双脊,故称双背鲫鱼;其生长速度快,为一般鲫鱼的2.5倍,含肉率为一般鲫鱼的1.2倍,是世间的稀有品种,《诗经》中“厚背鲫”的记载使之独俏“鲫”群而载入史册。
Double-back crucian carp produced in the middle of the river in northern Henan, it is also known as Qi River crucian carp. Double-breasted crucian carp differs from common freshwater crucian carp in that crucian carp is grayish-black in color and double-breasted crucian carp is slightly golden in color and similar to carps; generally, the number of male and female crucian carcass is roughly balanced; The typical maternal family; general carp flat and handsome body, a small body weight, weight, but about 0.5 kg, while the double-breed carp body fullness and vigorous, a general strong, heavy up and down up to 2.5 kg; general crucian carp 2 -fold fish, The double-back crucian carp is a rare triploid fish, back thickness of 2 times the general crucian carp, like a double ridge, so called double-back crucian carp; its growth rate of 2.5 times the general crucian carp, the meat content is generally Crucian carp 1.2 times, is a rare species in the world, “The Book of Songs” in the “thick back crucian carp” records make it unique “crucian carp” group and recorded in the annals.