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Showing 3 results for Saccharomyces Cerevisiae
A. Hasanpour Fattahi , H. Jafaryan, A. Khosravi, D. Abdollahi Arpanahi ,
Volume 23, Issue 2 (7-2014)
Abstract
This study was conducted to evaluate the effects of dietary autochthonous Saccharomyces cerevisiae and Aspergillus niger on the growth performance, survival rate, ammonia excretion, immune response and the intestinal microbiota of juvenile beluga sturgeon (Huso huso). Beluga juveniles with average (±SD) weight of 31.8±2.81 g were randomly allocated into 12 oval tanks (1000 l) at a density of 30 fish per tank and triplicate groups and were fed either with a basal control diet (no supplemented with probiotic) or with the basal diet supplemented with S. cerevisiae and A. niger (2×106, 4×106 and 6×106 cells g-1). After 8 weeks of feeding on the experimental diets, growth factors, survival rate, ammonia excretion, immunity parameters and gut microbiota were measured. The results indicated that dietary supplementation of 6×106 (cells g-1) S. cerevisiae and A. niger significantly improved growth indicators, survival rate, immune parameters and ammonia excretion compared to the control treatment. Additionally, total autochthonous intestinal fungus probiotic and Lactobacillus spp. counts were affected by dietary treatment. The results showed that dietary supplementation of S. cerevisiae and A. niger (6×106 cells g-1) had positive effects on growth and immunity factors in cultured juveniles beluga.
F. Darafsh, M. Soltani, H.a. Abdolhay, M. Shamsaei Mehrejan,
Volume 28, Issue 3 (9-2019)
Abstract
To determine the effect of D-Pro probiotics (Bacillus licheniformis, Bacillus subtilis) and Saccharomyces cerevisiae in Persian sturgeon’s diet on the growth indices and biochemical analysis of the carcass, a total of 2400 Persian sturgeon species were randomly selected, with a mean weight of 4.00±0.10 g (mean ± standard error) and a mean length of 9.91±0.35 cm (mean ± standard error), and were assigned to four treatment groups, each of which was carried out with three replications. The present study was conducted within 60 days in Dr. Beheshti Center of Proliferation and Restoration of Persian Sturgeon (Guilan province). The treatments were 1) 5 g/1 kg of D-Pro, 2) 5g/1kg of Saccharomyces cerevisiae, 3) a mixture of 5 g/1kg of D-Pro and 5 g/1kg of Saccharomyces cerevisiae, and 4) a control group )a basic diet without any probiotics and yeasts(. Results of the analyses showed that the highest mean weight was obtained in the D-Pro treatment. The D-Pro treatment had the highest increase in length and the lowest feed conversion ratio which were significantly different compared to other treatments (P<0.05). Using D-Pro in their diet led to a carcass fat increase and this increase was statistically significant (P<0.05). By adding D-Pro to their diet, the carcass moisture decreased and this decrease resulted in a significant difference in the carcass moisture content compared to the control group (P<0.05). The levels of whole carcass ash were not significantly different in the D-Pro and Saccharomyces cerevisiae treatments compared to the control group (P>0.05). However, differences in the levels of whole carcass ash were observed between the D-Pro and Saccharomyces cerevisiae treatments, such that the levels of ash significantly increased compared to the D-Pro treatment (P<0.05). The oral consumption of 5g of D-Pro probiotic in the Persian sturgeon’s diet increased growth and growth indices and is recommended to be used in the aquaculture industry.
Paria Akbary,
Volume 28, Issue 6 (2-2020)
Abstract
Probiotics, as a live microbial dietary supplement, play an important role in the growth and activity of the host digestive enzymes by balancing the gut microbial population.The present study was conducted with 4 treatments and 3 replications including diets containing 1×106, 3×106 and 5 ×106 (cell/ g feed) and control (basal diet without yeast) to evaluate the effect of different levels of dietary supplementation of Saccharomyces cerevisiae on growth performance, body biochemical composition and digestive enzymes activities of grey mullet, Mugil cephalus. The fish (5.56±0.65 g) were randomly allocated into 12 fiberglass tanks at a density of 20 individuals per tank with three replicates for each treatment and fed with the experimental diets for 60 days. The results indicated that the diet at 5×106 yeast cells/ g( significantly improved weight gain (240.36±13.57%), final weight (919.28±1.55), protein efficiency (10.01± 0.56%) and survival (94.40±13.57%) compared to the control and treatment 2 (p<0.05). Also, the highest activity of amylase (199.50±17.70 U/mg protein) and protease (362.50±13.52 U/mg protein) were observed in 5×106 yeast cells/ g diet (P<0.05). This study shows that the use of S. cerevisiae 3×106 and 5 ×106 yeast cell/ g feed can have positive effects on growth performance, feed utilization, body chemical composition and digestive enzymes activities of M. cephalus.
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