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عنوان
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تجویز اثرات ارزیابی خوراکی پروبیوتیک لاکتوباسیلوس پلانتاروم و لاکتوباسیلوس بولگاریکوس جدا شده از روده ماهی شیربت بر رشد و فلور گوارشی ماهی کپور معمولی (Cyprinus carpio)
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نوع پژوهش
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پایان‌نامه
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کلیدواژه‌ها
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PROBIOTIC, LACTOBACILLUS, CYPRINUS CARPIO.
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چکیده
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Probiotic supplementation may change the fish microbial flora of the
intestine and modulate the immune defences and growth performance This
study was conducted to evaluate the effect of food supplementation with
L.plantarum , L.bulgaricus and Lactobacillus casei PTCC 1608 on growth
performance and gut microbiota of Cyprinus carpio For this purpose, 480
C. carpio juveniles (40±6 gr Mean±DS) randomly were divided into groups
(three replicates) and fed with diet containing 5×107 CFU g_1 of
Lactobacillus plantarum (group A), Lactobacillus bulgaricus (group B) ,
Lactobacillus casei (group C) and control diet (group D) for 60 days To
evaluate the persistent presence of the bacteria and effect on the microbiota
of the digestive system, feeding remained fish of each group last from day
60 to 75 with free probiotic diet. Results showed that intestinal
lactobacillus rate on days 30 and 60 of experiment significantly increased
compared with the control group (P?0.05). At day 30 group B and C was
most lactobacillus rate. Total intestinal bacteria on day 30 were
significantly changed in group A and B compare to the group C and control
group (P?0.05). At day 75 of experiment SGR of fish fed with diet
containing L. bulgaricus was significantly increased compare to control
group(P?0.05). In day 60 and 75 of experiment the FCR of fish fed with
diet containing L. casei was significant increased compared to the control
fish (P<0.05). PER of fish fed with diet containing L. casei at day 30 of
experiment was significantly increased compare to control group (P?0.05).
In day 30 and 75 of experiment the DWG of fish fed with diet containing L.
casei was significantly increased compared to the control fish (P<0.05).
Consequently L.bulgaricus and L. casei increased rate of beneficial
bacterial in bacterial microflora in intestine and consequently induce growth
promotion in treated fish then these can be a proper candidate as probiotic
in carp.
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پژوهشگران
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فاطمه چهار لنگ (دانشجو)، عالی حسینی (استاد راهنما)، محمد مدرسی (استاد مشاور)
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