As we know , there are a pair of duct - like gland tissue located in the back of urethra and prostate , that is spermatophore 我们知道，在人体的后尿道处，前列腺的后方，生长着一对呈管状的腺体组织，叫做精囊。
2.
This gland is located on the distal end of spermatophore cyst , and shaped like a semicylinder which consists of many acini 促雄性腺位于精荚囊末端，半圆柱状，由许多腺泡组成，细胞内富含粗面内质网和高尔基氏体，推测其分泌蛋白质性质的激素。
3.
The secretion of the spermatophore is mainly one of components of semen , the secretion is dyed by the spermatophore bleeding and released from body , bloody semen occurs during ejaculation 精囊腺的分泌液是精液的主要成分之一，精囊出血使其分泌液染上血迹，当随着精液排出体外时，就发生了血精。
4.
Now it has been one of the most important aquatic products in the freshwater cultivation . however , this prawn ca n ' t survive at a water temperature lower than 14c , which has seriously limited its cultivation expanding . in order to obta in a new breed of this prawn with increased cold - resistance , we investigated the cloning of a synthetic gene ( sbwafp ) based on the primary sequence of the mature spruce budworm ( choristoneura fumiferana ) antifreeze protein ( sbwafp ) and the integration of sbwafp into the embryo genomes of giant freshwater prawn by spermatophore - microinjection ( smi ) , a sperm - mediated gene transfer technique 本研究的特色和创新之处在于，针对罗氏沼虾不耐低温，但体型相对较大，精荚明显的特点，首次将目前已知具有最强抗冻活性的云杉卷叶蛾( sprucebudworm ， choristoneurafumiferana )抗冻蛋白( sbwafp )基因( sbwafp ) ，通过精子介导的转基因技术整合到罗氏沼虾的胚胎中，以期培育出耐低温的罗氏沼虾新品系。
