title: [Effect of different ecological factors on ricefield eel (Monopterus albus) hatching rate].
abstract: This paper studied the effects, of some ecological factors (temperature, pH, hatching method and ammonia) on the embryonic development of ricefield eel. The results indicated that the optimum hatching temperature of ricefield eel was 25-28 degrees C, and no significant difference was found about the effects of pH within the range of pH 5.5-9.5 on the hatching rate of oosperm. Dripping water incubation had a higher hatching rate of oosperm than staticing water incubation, and the hatching rate of oosperm decreased with increasing ammonia content. The present study provided an available suggestion for the all-artificial and half-artificial breeding of ricefield eel.
authors.affiliation: College of Ocean, Hainan University, Haikou 570288, China. yinshaowu@163.com
authors.forename: Shaowu
authors.initials: S
authors.lastname: Yin
authors.forename: Gongjian
authors.initials: G
authors.lastname: Zhou
authors.forename: Yun
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000641:Ammonia / Q000494:pharmacology; D000818:Animals; D004305:Dose-Response Relationship, Drug; D004625:Embryo, Nonmammalian / Q000187:drug effects / Q000196:embryology*; D006863:Hydrogen-Ion Concentration; D023701:Smegmamorpha / Q000196:embryology*; D013696:Temperature; D013997:Time Factors
chemical_list: D000641:Ammonia