JAVAD SAHANDI
@ouc.edu.cn
Key Lab of Aquaculture Nutrition and Feeds, College of Fisheries, Ocean University of China
Ocean University of China
RESEARCH INTERESTS
Probiotic, Antibiotic, Cell Signaling
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Keke Lei, Chang Liu, Javad Sahandi, Zhengyi Cui, Wanxiu Rao, Peng Chen, Bwebwe Botaa Tabuariki, Kangsen Mai, and Wenbing Zhang
Elsevier BV
Javad Sahandi and Hojatollah Jafaryan
Central Fisheries Research Institute (SUMAE)
This study aimed to evaluate the effects of Bifidobacterium animalis and Bifidobacterium lactis on growth, length-weight relationship and some biological indices of rainbow trout, Oncorhynchus mykiss fry. An iso-nitrogenous (50% crude protein) diet was supplemented with three different concentrations of a mixture of equal quantities of the two strains of Bifidobacterium, namely T1 (1×107CFU/g), T2 (2×107CFU/g), T3 (3×107CFU/g) and a control (without bacteria). A total of 480 trout fries with an initial mean body weight of 0.53±0.19 g were randomly divided into four groups, each with 4 replicates. The fries were distributed into 16 fiberglass tanks (20 L total capacity) each filled with 15 L of water (water exchange rate of 2 L min-1 and permanent aeration) at a density of 2 fries per liter. During the 8-week feeding trial, the mean water temperature was 17.66±1.33°C and that of pH was 7.63±0.08. All fish groups demonstrated positive allometric growth. Trout fries fed with diet T1 recorded significantly higher (P<0.05) gonadosomatic index, specific growth rate and mean weight gain. The highest final mean length (14.12±4.57 cm) was recorded in fry fed with diet T2. The lowest concentration of Bifidobacterium, T1 induced the best growth and it enhanced the biological indices of O. mykiss.
Keke Lei, Zhengyi Cui, Chang Liu, Javad Sahandi, Wanxiu Rao, Peng Chen, Kangsen Mai, and Wenbing Zhang
Elsevier BV
Javad Sahandi, Patrick Sorgeloos, Kam W. Tang, Fanghong Mu, Tatyana Mayor, and Wenbing Zhang
Elsevier BV
Fatou Ndoye Fall, Shuoli Ma, Javad Sahandi, Chukwuma Kenneth Chibuikem, Mingzhu Pan, Bwebwe Botaa Tabuariki, Yanlin Guo, Kangsen Mai, and Wenbing Zhang
Elsevier BV
Javad Sahandi, Patrick Sorgeloos, Hui Xiao, Fanghong Mu, Xianghong Wang, Zizhong Qi, Yanfen Zheng, and Xuexi Tang
Elsevier BV
Javad Sahandi, Patrick Sorgeloos, and Wenbing Zhang
Springer Science and Business Media LLC
Javad Sahandi, Hojatollah Jafaryan, Mehdi Soltani, and Pouneh Ebrahimi
Springer Science and Business Media LLC
Sahandi, Sorgeloos, Xiao, Wang, Qi, Zheng, and Tang
MDPI AG
Vibrio species are a significant causative of mass mortality in mariculture worldwide, which can quickly accumulate in live food and transmit into the larval gut. With restrictions on the use of antibiotics in aquaculture, finding a proper solution to reduce the risk of Vibriosis is vital. This study aimed to evaluate the susceptibility of Vibrio harveyi, V. campbellii, V. anguillarum, and V. parahaemolyticus to twenty-six bacterial and yeast strains and use the beneficial ones to enrich live food (Branchiopod, Artemia franciscana, rotifer, Brachionus plicatilis and copepod, Tigriopus japonicus). Thus, a modified disk diffusion method was applied. After a susceptibility assay, the bacteria and yeast beneficial in suppressing the Vibrio species were labeled by fluorescent stain and used to measure the accumulation potential in different live foods. Also, the beneficial bacteria and yeast were used to enrich live foods, and then the count of loaded Vibrio was estimated after 5, 10, 15, and 20 hours by the serial dilution method. From the total bacteria and yeast strains that were used, Candida parapsilosis, Pseudoalteromonas flavipulchra, Lactobacillus sakei, Bacillus natto, and B. amyloliquefaciens inhibited all four Vibrio species. The results of microbial labeling showed that L. sakei in Artemia, C. parapsilosis in rotifers, and V. harveyi in copepods had the highest accumulation rate. The results of the estimation of loaded Vibrio in different live foods also showed that the use of beneficial bacteria and yeast each significantly reduced the count of Vibrio. Application of bacteria and yeast to suppress pathogenic Vibrio maybe a sustainable method for preventing this pathogen from harmfully invading aquaculture and may also aid in reducing the chances of antibiotic resistance in pathogenic Vibrio.
Hojatollah Jafaryan, Javad Sahandi, and Javad Bagheri Dorbadam
Walter de Gruyter GmbH
The aim of the present study was to evaluate the effects of diet with different microbial concentrations on the growth and length-weight relationship of Trichopodus trichopterus . For this aim a study was designed with four experimental treatments and the control to evaluate different microbial concentrations on growth and length-weight relationship. The counts of bacteria that were used for dietary supplementation were 1×10 4 , 2×10 4