تأثیر استفاده از سینبیوتیک پکتین و الکتوباسیلوس پالنتاروم )plantarum Lactobacillus )بر عملکرد رشد و بیان ژنهای مرتبط ب با رشد بچهفیلماهی huso Huso.

Increasing the growth and immune system of beluga sturgeon (Huso huso) which is a valuable species is an important aim for aquaculture so The purpose of this study was to investigate the effect of pectin and L. plantarum on growth performance and growth genes of juvenile beluga sturgeon (Huso huso). Triplicate groups of beluga juveniles each (15 ± 3 g) were placed in 9 oval tanks (400) and fed with the 10⁷ cfu g^-1, 108 cfu g^-1 , pectin (1%), pectin (2%), 10⁷ cfu g^-1 and 1% pectin, 107 cfu g^-1 and 2% pectin, 10⁸ cfu g^-1 and 1% pectin, 10⁸ cfu g^-1 and 2% pectin and control group. The trial lasted 8 weeks. At the end of experiment biometery was done and brain and liver tissue were separataed. Results showed that although pectin and L. plantarum could enhance growth factors separately, the highest FW, GW and SGR was observed in fish fed 108 cfu g^-1 and 2% pectin which had significant differences with others treatments and control (P<0.05). Also the highest genes expression was in this treatment and the lowest in control. In general, pectin and L. plantarum could significantly affect growth performance in juvenile blugae. [ABSTRACT FROM AUTHOR]