Semra Benzer1,* and Recep Benzer2
... regarding narrow-clawed crayfish (Astacus leptodactylus Eschscholtz 1823) between 2015 and 2016. The relationships between total length (TL) and total weight (TW); carapace length (CL) for Astacus leptodactylus caught from Uluabat Lake were presented with tradional method of length-weight relation (LWR) Equation and Artificial Neural Networks (ANNs) method. The growth estimation of 540 crayfish was carried out...
Jin-Juan Wan, Mei-Fang Shen*, Hui Xue, Hong-Yan Liu, Mei-Qin Zhang, Xi-He Zhu and Chong-Hua Wang
...ty of juvenile red swamp crayfish Procambarus clarkia (average weight: 3.01±0.02 g). Crayfish were randomly assigned to one of five feeding frequencies (1,2,3,4 and 5 times/day, F1, F2, F3, F4 and F5) following the same ration size for 60 days. After the feeding trial, fish were challenged with white spot syndrome virus (WSSV) and cumulative mortality was recorded for the next 4 days. The results showed that th...
Keqiang Wei1*, Yue Wei2 and Changxia Song1
...atopancreas of red swamp crayfish (Procambarus clarkii), a commercially important aquaculture species in China. Using polyclonal antibodies, the strong staining of these proteins in hepatopancreatic cells was observed. The synchronous expression of p38 and its phosphorylated form (p-p38) was mainly present in B- and R- cells, and their MOD values were 0.0055±0.0038 and 0.0046±0.0027, respectively. As its downstream transcription factors, both Rel...
Xiao Zhang1, Guoqing Shen1, Yang Wang1, Pengdan Huang1,2, Yan Shui2, Zenghong Xu2 and Huaishun Shen1, 2*
...ilable for the red swamp crayfish Procambarus clarkii are limited. In this study, a sizeable number of microsatellites were identified using the data of the P. clarkii genome survey generated from Illumina Hi-Seq PE sequencing. A total length of 1,625 Mb genomic sequences of P. clarkii were assembled based on 124 Gb raw sequencing data. Based on a Kmer analysis, the P. clarkii genome size was projected as approximately 3.6 Gb. A total of 336,275 SSRs (simple s...
Yi Zhao1,2,3, Lei Luo1,2, Liqi Tan4, Jianhua Huang1,2, Dongliang Liu1,2,5, Shigui Jiang1,2 and Lishi Yang1,2*
...reas and gill tissues of crayfish was gradually increased, and the fatty acid synthase activity at 10°C and 30°C were significantly lower than the control group of 25°C. Furthermore, lysozyme, catalase and superoxide dismutase in 10 °C and 30 °C were significantly lower than that of 25 °C. ELISA revealed that HSP90 activities was enhanced with the increasing temperature in hepatopancreas after 36h of treatment. HE sections showed that h...
Hongsen Xu*, Xiaoni Wang, Tie Tian, Changyu Zhao, Denghang Yu and Jun Liu
...se of naturally infected crayfish, and the lethal dose 50% was 1.52 × 106 CFU/g crayfish. Serious histopathological changes, such as cell degeneration and necrosis, hemorrhage and inflammatory cell infiltration, were found in diseased crayfish. In conclusion, this study confirmed the pathogen of whitish muscle disease in farmed P. clarkii, and preliminarily investigated the biologica...
