Publication Date:
2021-05-19
Description:
To compare the reproductive performance of the wild and cultured stocks of beluga, Huso huso males, some
spermatological parameters were measured including: sperm motility, sperm density, spermatocrit and also
fertilization rate, hatching rate and larval growth and survival rates. The semen samples were sampled from 11
wild spawners and 12 cultured brooders. A half of each semen sample was allocated for spermatological analysis
and remaining were used for artificial propagation. In wild beluga, sperm motility time was 339.09 23.11 s;
spermatozoa motility rate 83.64 2.01%; sperm density 15.22 3.46 ×109 and spermatocrit 5.88 1.36% while in
cultured beluga, sperm motility time was 199.35 29.02 s; spermatozoa motility rate 74.22 2.4 %; sperm density
8.37 0.24 × 109 and spermatocrit 3.21 0.29 %. The fertilization rate (%), hatching rate (%), larval growth (% g.day-
1), and survival rate (%) in wild beluga were 61.72 14.16, 43.33 11.13, 12.28 0.33 and 52.66 7.77, while in
cultured beluga were 49.98 6.55, 31.47 8.49, 12.28 0.62 and 57.37 7.89, respectively. The spermatozoa motility
(the ratio and duration of motility) were significantly different between wild and cultured brooders (P〈0.05). The
values of sperm density, spermatocrit, fertilization rate, hatching rate, larval growth and survival rate were not
significantly different between wild and cultured beluga (P〉 0.05).
Description:
Published
Keywords:
Spermatological
;
Beluga
;
Fertilization
;
Huso huso
;
Sperm motility
;
Sperm density
;
Rate
;
Parameters
;
Hatching
;
Larval
;
Growth
;
Survival
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.273-279
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