Manipulation of photoperiod in growth factors of beluga sturgeon Huso huso
نویسندگان
چکیده
منابع مشابه
The combined effects of photoperiod and feeding time on growth performance of beluga sturgeon (Huso huso)
This study aimed to evaluate the effect of photoperiod and different feeding times on growth performance and feed efficiency of juvenile beluga sturgeon (Huso huso) for 56 days. One hundred and twenty fish with an average weight of 51.5 ± 0.4 g (mean ± SD) subjected to four different treatments with three replications which distributed in 12 circular concrete tanks under the treatments includin...
متن کاملCryopreservation of Beluga (Huso huso) Sperm: Effect of Different C
Semen obtained from four Beluga males (Huso huso) was cryopreserved using extender; Tris-sucroseKCl (30mM Tris, 23.4mM sucrose, 0.25mM KCl, PH 8.0) supplemented with MeOH at concentration of 5%, 10% and 20%. Semen was diluted, respectively, with ratios of 1:0.5, 1:1 and 1:2 with extender and frozen in liquid nitrogen vapor.Frozen sperms after 30 and 60 days were excluded from freezing. Experime...
متن کاملEffect of freezing rate on motility, adenosine triphosphate content and fertilizability in beluga sturgeon (Huso huso) spermatozoa.
Broodstock selection programs are currently underway for sturgeon species. To complement and further these selection programs we need to develop sperm cryopreservation procedures. In the present study, we describe the effects of freezing rate (-10°C, -15°C, -20°C, -30°C and -40°C/min) on gamete quality characteristics (i.e., duration of motility (s), motility percentage (%), ATP content (nmol/1...
متن کاملMineral Status of Juvenile Beluga (Huso huso) Fed Citric Acid Supplemented Diets
A study was conducted to investigate the effects of dietary citric acid (CA) (0, 1, 2 and 3%) on the Calcium(Ca) and Phosphorus(P) content of muscle, scute and serum of Beluga (Huso huso) juveniles (25.1±1.9 g). After 8 weeks feeding on the experimental diets, Calcium(Ca) and Phosphorus(P) content of muscle, scute and serum were measured. The results revealed that addition with 2% and 3% CA sig...
متن کاملMorphological and Histological Study of Kidney in Juvenile Great Sturgeon (Huso huso) and Persian Sturgeon (Acipenser persicus)
Sturgeons are ancient and commercial fishes which posses’ primitive characteristics and due to their great inflections are able to live in both freshwater and marine environments. So their kidney has great ability for adaptation process. In order to find the structure and distribution of kidney nephrons in juvenile Huso huso and Acipensr persicus, sampling of head, body and caudal parts of kidn...
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ژورنال
عنوان ژورنال: African Journal of Biotechnology
سال: 2010
ISSN: 1684-5315
DOI: 10.5897/ajb09.1611