深水网箱高体(鱼师)养殖试验报告     

陶启友  郭根喜  周学家 《齐鲁渔业》2005,22(6):3-5

通过对均重1 225 g的大规格高体(鱼师)苗种进行252天的深水网箱养殖,高体(鱼师)的平均体重由1 225 g增至3 350 g, 共收成鱼5 521尾,养殖成活率92.02%,杂鱼饵料系数7.76。  相似文献   

The influence of dietary phospholipid level on the performances of juvenile amberjack, Seriola dumerili, fed non-fishmeal diets     

O. UYAN  S. KOSHIO  M. ISHIKAWA  S. YOKOYAMA  S. UYAN  T. REN  & L.H.H. HERNANDEZ 《Aquaculture Nutrition》2009,15(5):550-557

The objective of the present study was to investigate the effect of dietary phospholipid (PL) level on growth and feed intake of juvenile amberjack ( Seriola dumerili ) fed non-fishmeal (non-FM) diet containing alternative protein sources; soybean protein isolate, tuna muscle by-product powder and krill meal. Three non-FM diets were prepared to contain three levels (14, 37 and 54 g kg⁻¹ dry diet) of PL (soybean lecithin acetone insoluble, 886 g kg⁻¹) and growth performance was monitored in a 30-day growth trial by using 2.6 g of fish. The results indicated that final body weight, weight gain and feed intake significantly increased with increasing dietary PL level. At the highest dietary PL level (54 g kg⁻¹ dry diet), the fish consumed 14.8% and 10.2% as much feed as those fish fed diets containing 14 g kg⁻¹ dry diet and 37 g kg⁻¹ dry diet PL, respectively. An increasing tendency with increasing dietary PL level on feed efficiency was observed. In conclusion, the present study demonstrated that dietary PL supplementation could increase feed intake, and improve the growth of juvenile S. dumerili fed non-FM diets. Therefore, purified PL might be a good candidate to stimulate the growth of fish through enhancing the feed intake when they are fed diets containing alternative protein sources.  相似文献   

Isolation and characterization of microsatellites from Seriola dumerili (Risso 1810)     

J M Porta  P Novel  G Martinez-Rodriguez  M C Alvarez  & J Porta 《Aquaculture Research》2009,40(2):249-251

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Bacteriological water quality of recirculating aquatic systems for maintenance of yellowtail amberjack Seriola lalandi     

Miriam Esther Garcia‐Mendoza  Jorge Cceres‐Martínez  Rebeca Vsquez‐Yeomans  Roberto Cruz‐Flores 《Journal of the World Aquaculture Society》2019,50(5):934-953

The bacteriological water quality associated with marine fish farming systems can be a determining factor in the development of disease, and understanding this quality is fundamental for the prevention and control of possible disease outbreaks. In the present study, the bacteriological water quality of a yellowtail amberjack Seriola lalandi broodstock maintenance system, composed of two units of a recirculation aquaculture system (RAS 1 and RAS 2), was determined. From February 2016 to January 2017, monthly samples of surface water were taken at six points in the two RAS systems: (a) from the water reception tank and (b) from filter 1 and (c) tank 1 (in RAS 1) and (d) filter 2 and (e) tank 2 (in RAS 2) and from a joint (f) discharge point. The bacteriological quality was determined by counting total heterotrophic bacteria (THB) and by molecular identification (16S rRNA gene). The number of THB showed a tendency to decrease in filters 1 and 2, to increase in tanks 1 and 2, and again increase in the discharge. The fluctuation of THB, in general, was from 1.0 × 10³ to 2.9 × 10⁵ CFU/mL. In total, 102 colonies were isolated, corresponding to nine orders and 52 species, and Vibrionales and Alteromonadales were the most abundant orders. The bacterium Vibrio harveyi, a pathogen of S. lalandi, was identified, as were other bacterial species that are known pathogens; however, no signs of disease or mortality events were recorded during the study. These results suggest that the bacterial community contributed to the maintenance of a balance in the RAS, which prevented the development of infectious diseases. Furthermore, the physicochemical parameters (temperature, oxygen, nitrogen compounds, and alkalinity) were maintained within the optimum range required by S. lalandi. Some zoonotic bacteria were found, as well as bacteria with probiotic and industrial uses. These results represent the first report on bacteriological quality in RAS for S. lalandi.  相似文献   

Effect of fish oil replacement and probiotic addition on growth,body composition and histological parameters of yellowtail (Seriola dumerili)     

Maria Consolacin Milin‐Sorribes  Silvia Martínez‐Llorens  Csar Cruz‐Castelln  Miguel Jover‐Cerd  Ana Toms‐Vidal 《Aquaculture Nutrition》2021,27(1):3-16

Fish (175 g of initial weight) were fed in triplicated groups with four diets formulated by 0% (FO 100), 75% (FO 25) and 100% (with and without probiotics, FO 0 and FO 0+) of fish oil replacement consisting of a mixture of linseed, sunflower and palm oils. After 109 days, growth and nutritional parameters were not affected by the treatment; however, fish fed with 0% of fish oil showed the lowest survival rate and without differences between the same diet with probiotics. As for biometric parameters, significant differences in the viscerosomatic index (VSI) were observed between fish fed the FO 0+ diet and the FO 100 and FO 25 diets. Results obtained from histological analysis did not detect inflammation in gut samples, while liver samples showed a remarkable steatosis in all four treatments. Total fish oil replacement produced a significant difference in the width of the lamina propria. The dietary inclusion of probiotics in the FO 0+ diet seems to favour a recovery of intestine histology. In addition, as fish oil substitution increased, the width of the lamina propria also increased. In conclusion, it is possible to affirm that the four diets administrated to Seriola dumerili did not compromise the correct development of the animals.  相似文献   

黄条[鱼师]生长性状全基因组关联分析     

崔爱君  徐永江  王滨  姜燕  柳学周 《渔业科学进展》2021,(2)

利用2b-RAD技术对119尾黄条[鱼师](Seriola lalandi)个体进行测序,共获得黄条[鱼师]SNP分子标记26665个,对黄条[鱼师]个体的体质量和全长这2个重要生长性状进行全基因组关联分析,筛选与体质量和全长性状相关的SNP位点和候选基因。结果显示,黄条[鱼师]体质量性状中共筛选到17个体质量显著关联的SNP位点,找到17个可能的候选基因,全长性状共筛选到12个潜在显著关联位点,找到12个可能的候选基因。利用KEGG数据库对可能的候选基因进行Pathway分析,得知候选基因主要参与了细胞或组织生长发育相关的代谢通路调控过程,可能是影响黄条[鱼师]生长性状密切相关的重要候选SNP位点和功能基因,结果可为今后黄条[鱼师]种质资源可持续利用和育种提供遗传信息资料积累。  相似文献   

Lactococcus garvieae strains from yellowtail Seriola quinqueradiata carry different lengths of fimbriae on their cell surface     

Yusuke  HIROKAWA  Takeshi  IRIE  Tsuyoshi  OOYAMA  Hiroshi  YASUDA  Atsushi  NAKAMURA  Deuk-Hee  JIN  Chaivat  KITTIGUL  Terutoyo  YOSHIDA 《Fisheries Science》2004,70(3):521-523

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Effect of reward level on the number of food demands in yellowtail Seriola quinqueradiata     

Jun Kohbara  Iwao Hidaka  Mitsushi Yamashita  Masasuke Ichikawa  Kiyoshi Furukawa  Katsumi Aida  Mitsuo Tabata 《Fisheries Science》2001,67(4):660-666

ABSTRACT: The effect of reward level (amount of food received in response to one trigger actuation) on the self-feeding activity of juvenile yellowtails was examined. Three groups of 10 juvenile yellowtails (mean bodyweight, 65.6 g) were allocated randomly to three 200 L cylindrical tanks set in the experiment room. Each tank was illuminated by overhead fluorescent lamps with a light : dark photoperiod regimen of 12 h : 12 h (light 06.00–18.00 hours). A rod-type tactile switch was used to activate the self-feeding device. Three levels of reward were set up by installing a different number of identical feeders for each group: one feeder for the low-reward group, three feeders for the medium-reward group and five feeders for the high-reward group. Each feeder delivered 3–7 pellets per actuation. Yellowtails in all groups showed a clearly diurnal feeding pattern that was synchronized to the given photoperiod. Average number of feeder actuations per day was highest (219/day) in the low-reward group. Second highest was the medium-reward group (116/day), and last was the high-reward group (67/day). The resultant average feed intake per day was 27.1 g/day in the low-reward group, 31.5 g/day in the medium-reward group and 28.4 g/day in the high-reward group. Thus, yellowtails appear to have the ability to regulate the amount of feed delivered daily by increasing the number of food demands when the reward is low and decreasing the number of food demands when the reward is high.  相似文献   

Myxobolus buri, the myxosporean parasite causing scoliosis of yellowtail, is synonymous with Myxobolus acanthogobii infecting the brain of the yellowfin goby     

Hiroshi  YOKOYAMA  Mark ANDREW  Freeman  Tomoyoshi  YOSHINAGA  Kazuo  OGAWA 《Fisheries Science》2004,70(6):1036-1042

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Ambient salinity and osmoregulation,energy metabolism and growth in juvenile yellowtail kingfish (Seriola lalandi Valenciennes 1833) in a recirculating aquaculture system          下载免费PDF全文

Ainhoa Blanco Garcia  Gavin J Partridge  Gert Flik  Jonathan A C Roques  Wout Abbink 《Aquaculture Research》2015,46(11):2789-2797

The effects of salinity on plasma osmolality, branchial chloride cell density, feed consumption and conversion and growth performance of yellowtail kingfish (Seriola lalandi) were evaluated. Fish (11.6 ± 0.6 g) were kept for 29 days at 14, 18, 22, 26 (experimental) and 30 g L^?1 (control) salinity in independent, pilot‐scale recirculation aquaculture systems. No differences in plasma osmolality or chloride cell numbers in gills were observed, pointing to a strong osmoregulatory capacity in the juveniles. Fish at 14, 18 and 22 g L^?1 (7.61 ± 0.19, 7.61 ± 0.01 and 7.61 ± 0.13% day^?1, respectively) had higher growth rates than fish at 26 and 30 g L^?1 (7.10 ± 0.05 and 6.97 ± 0.06% day^?1 respectively). The higher growth rate at lower salinity resulted from increased feed intake; feed conversion was not different. An evaluation of the impact of salinity on growth rate of on‐growing stages (till market size) seems warranted to assess whether the profitable effects of low salinity persist in later stages of this important aquaculture species.  相似文献