Parrot Fish Gender Change. the change of gender of parrotfish has pollution of the river in Surabaya and its surroundings is already so severe. In fact, found along Brantas River, including Surabaya River, is very surprising, ranging from the reduction of fish species, cleft lip to change sex because contaminated birth control pills (family planning). change of sex of parrot after done census, fish female population dominate result of this census. That is, more and more people are dumping dirt into Kali Surabaya, the population of female fish species is getting bigger. "Because human feces carry reproductive hormones, can make fish change sex. That is, the fish that should be male even grow into a female, "said Andreas (Surya.co.id, 2010).
 |
| Parrot Fish Gender Change |
change of sex of parrot fish according to various research, this change one of them caused by birth control pill of woman. He explains, urine acceptor of birth control pills containing synthetic esterogen hormone which is the main component of the pill. When urine is dumped in Kali Surabaya, the water is polluted by the synthetic esterogen hormone. Pollution is what allegedly by Andreas has caused male fish to be female (Surya.co.id, 2010).
the sex-change of the parrot has the sex of an organism determined by several factors such as environmental factors and genetic conditions. Genetically, chromosomes play an important role in determining sex (sex chromosomes or gonosomes). To get the sex of the fish in accordance with the desired can be done several ways yatiu treatment with hormones, chromosome manipulation, and a combination of both and through the process of hybridization, gynogenesis, androgenesis (Arifin, 2005).
the change of the sex of the parrot is a method to change the sex of fish artificially from female to male or vice versa. Sex change is possible because in the growth phase of gonad there has been no genital differentiation and there is no steroid formation so genital formation can be directed by using steroid synthesis hormone. Hormones regulate multiple reproductive phenomena such as gonadal differentiation, gamete formation, ovulation, morphological or physiological changes in the spawning season or pheromone production. Differentiation of gonads occurs first followed by other phenomena (Arifin, 2005).
the sex-change of the parrot has sex steroids that function to change the sex is androgens (testosterone, metltestoteron etc) which gives the effect of masculinity and estrogen (estron, estrodiol etc) which has the influence of femininity (Arifin, 2005).
the sex-change of the parrot has the sex of an organism determined by several factors such as environmental factors and genetic conditions. Genetically, chromosomes play an important role in determining sex (sex chromosomes or gonosomes). To get the sex of the fish in accordance with the desired can be done several ways yatiu treatment with hormones, chromosome manipulation, and a combination of both and through the process of hybridization, gynogenesis, androgenesis (Arifin, 2005).
the change of the sex of the parrot is a method to change the sex of fish artificially from female to male or vice versa. Sex change is possible because in the growth phase of gonad there has been no genital differentiation and there is no steroid formation so genital formation can be directed by using steroid synthesis hormone. Hormones regulate multiple reproductive phenomena such as gonadal differentiation, gamete formation, ovulation, morphological or physiological changes in the spawning season or pheromone production. Differentiation of gonads occurs first followed by other phenomena (Arifin, 2005).
the sex-change of the parrot has sex steroids that function to change the sex is androgens (testosterone, metltestoteron etc) which gives the effect of masculinity and estrogen (estron, estrodiol etc) which has the influence of femininity (Arifin, 2005).
No comments:
Post a Comment