spermiation

spermiation

/sper·mi·a·tion/ (sper″me-a´shun) the release of mature spermatozoa from the Sertoli cells.
References in periodicals archive ?
Actin binding proteins, spermatid transport and spermiation," Seminars in Cell & Developmental Biology 30; 75-85.
GnRHa injection accelerates final maturation and ovulation/ spermiation of sockeye salmon (Oncorhynchus nerka) in both fresh and salt water.
1988) made 2 other important conclusions with respect to measurement of maturity: 1) males show evidence of spermiation, as detected by gonad histology, 1-2 years earlier than macroscopic ripening of the gonad, indicating that males delay spawning for a couple of years after this initial sign of maturity, and 2), from 1978 to 1982, male age at spawning declined about 2-3 years in association with high rates of exploitation and reduced population density.
By this delivery system it will be possible to control maturation and induce ovulation and spermiation in several species of cultured fish with similar dosages to those used for classic injection or implantation.
After June, the length and gonad index declined sharply as a result of spawning or spermiation (Fig.
Prior to commencement of the present study, we had attempted to control milt production in male Caspian brown trout, Salmo trutta caspius, in order to ensure that spermiation occurred in synchrony with the ovulation of naturally ripening females.
Spermiation in male roach can occur in captivity, and males can produce sperm over a period of a few weeks without the need for any intervention.
Induced spermiation and milt management in Pangasius bocourti (Sauvage, 1880).
In October last year, contraceptive makers Schering signed a deal with the team to fund the screening of thousands of human proteins that may be involved in the process, called spermiation.
Regulation of spermiogenesis, spermiation and blood-testis barrier dynamics: Novel insights from studies on Eps8 and Arp3," Biochemical Journal 435(3): 553-562.
As fowl sperm have been shown not to undergo changes in the morphology directly after spermiation (Jones and Lin, 1993), the results of the gradually increased binding capacity of the testicular, epididymal, and vas deferens sperm that were reported in the present study provide further evidence for the functional maturation of fowl sperm.