Endemic Fishes Research Institute of Heilongjiang Province

Jiamusi, China

Endemic Fishes Research Institute of Heilongjiang Province

Jiamusi, China
SEARCH FILTERS
Time filter
Source Type

Li W.,Endemic Fishes Research Institute of Heilongjiang Province | Shi Z.,Endemic Fishes Research Institute of Heilongjiang Province | Wang Y.,Endemic Fishes Research Institute of Heilongjiang Province | Liu J.,Endemic Fishes Research Institute of Heilongjiang Province | And 3 more authors.
Journal of Applied Ichthyology | Year: 2011

Ten females of Kaluga sturgeon (Huso dauricus; 73.8± 6.49kg, total length 204.5±12.8cm) matured for the first time after a full life-cycle in captivity. Absolute gonad biomass was 8.4±1.3kg per female and relative fecundity 11.2± 1.6%, at maturation stage IV. These fish were induced to spawn by injection of hormone LHRH-A2 at a dosage of 10μgkg-1. Male Kaluga was injected one time at 5μgkg-1 and milt was stripped 16h after injection of LHRH-A2. Water temperature was about 16±1°C during the induction period. Fertile eggs were obtained 36.8±2.6h after first injection; they were fertilized by semi-dry method. Fertilization rate was 80.7±3.8%. Fertilized eggs were incubated McDonald jars (hatching rate 85.2±9.8%). There was a strong correlation between body weight (x) and time (y) needed from hormone injection to obtaining fertile oocytes (y=-0.8231x+98.838 R2=0.8428; P<0.01). The cultured males ripened as early as at age 5 while females were 8-years old at first maturity. © 2011 Blackwell Verlag, Berlin.

Loading Endemic Fishes Research Institute of Heilongjiang Province collaborators
Loading Endemic Fishes Research Institute of Heilongjiang Province collaborators