ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Feeding  (25)
  • 1
    facet.materialart.
    Unknown
    Active analysis of condition of feed and feeding in Iranian sturegeon fish larvae (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In the first chapter, all documents in aquaculture feed, feed formulation, nutritional requirement and basic concepts of aquatic feeding had been collected. The second chapter focused on broodstock feeding in order to improve reproduction effecieny . The third chapter performed to importance of live food specially in sturgeon fishes larvae and the forth chapter attended to biology and ecology of this fishes and finally in the fifth chaper, special nutrition and feeding in sturgeon fish larvae had been brought with all the works out in Iran on. There are 63 documents including papers, thesis and reports from different research library and universities among them 34 base on sturgeon larvae nutrition specially on Huso huso and Persian sturgeon species and almost there are not any documents on the other three species. 14 documents comes from the role of protein, energy and lipid replacements basically in the first growth year, 3 of back to the special nutrition requirement of Persian and Huso huso species and 12 were on digestive enzymes physiology, the role of probiotic and prebiotic on growth and survival rate. Almost there is not any organization in Iran to work on this species specificly and it seems every student and researcher paid attend to a narrow way of high way sturgeon fish researches. There is not any data bank on these important fishes and some repeated worked out by researchers in different parts of the country. Beside of this documents there had been gathered some research documents from the other countires for comparing and showing the correct way in this regards. First, we must focus on broodstock sturgeon feeding, then on egg and yolk analysis, larval stages, morphology, measurement of larval mouth and finding the best live food for different stages of sturgeon larviculture and finnaly on digestive physiology and enzymatic activities. In the stage of shifting from endogenous to exogenous feeding, nutritional requirement, protein digestibility, essential and free amino acids, essential fatty acids spcially PUFA and HUFA, vitamins, minerals, pigments, growth and survival stimulants and resistance to physiological environmental stress are very important to search.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Sturgeon fishes ; Nutrition ; Feeding ; Biological stages ; Feed ; Larvae
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 256pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    The Study of nutrition and feeding position of shrimp, cultured in IRAN (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The culture of Iranian Shrimps began in Bushehr in 1372. Early the green or the pink tiger shrimp (Penaeus semisulcatus) which were found in most habitats of the Persian Gulf and Oman Sea were considered in breeding and reproduction, but due to reproduction difficulties, it was rather replaced by the Monodun imported species, then the production of the white shrimp Metapenaeus affinis and Then P.merguensis in some southern areas of the country such as Hormozgan has began in small scale,but none of these species couldn't meet the economical needs of the consumer society and they were not indelible and dominant enough in the shrimp aquaculture industry of the country until breeding of Indian White Shrimp (Fenneropenaeus indicus) has began in large scale in the provinces of Khuzestan and Bushehr, which are seen as the heart of shrimps reproduction and breeding, and in Hormozgan and Sistan. the incidence of white spot viral syndrome (White Spot Syndrom Virus) led to the import of the western white leg shrimp from the USA (P.vannameii) by the Iranian Fisheries Research Organization (IFRO) in 1383, at the present all southern and northern breeding farms of the country (fundamental measures has been carried out in line of shrimp reproduction in Gorgan province in 1386) has put the breeding of this shrimp species as the single breeding species at top of their agenda. The subject of feeding the breeding shrimps is widespread and regarding to the non-proprietary species there are still some species which contain high protein than the other species in studying the different shrimp species requirements. In Iran due to the scarce factories producing the shrimp's food, the alimentary compound of the breeding shrimps during industrializing years of this type of breeding even after the non-aboriginal western white leg shrimp species being inclusive was stable and through different biological processes including: Naplies which feeds from its yalk and by entry into zoa stage start eating only small-sized phytoplankton. And by entry into the stage between zoa and mysis it feeds from phyto and zooplankton simultaneously and entering the post-larva stage it stars sarcophagi. and after 15 post-larva stage entering the growth and transition stage to earthen ponds feeding by concentrated industrial foods in large and small packages depending on young and adult mouth and due to feeding requirements of every stage the alimentary compound is nearly as follows: Digestible protein, energy, fat, carbohydrates, vitamins and minerals will start and the final product will be released in market Or they will be used in the later years of laying eggs and feeding for brood stock. In feeding section the details of every stage and their food's nutritional needs at each stage and will be fully described.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Economical ; Shrimp ; Food components ; Biological processes ; Nutrition ; Feeding ; Culture ; Tiger shrimp ; Penaeus Semisulcatus ; Breeding ; White shrimp ; Metapenaeus affinis ; Aquaculture ; White Spot Syndrome Virus ; Phytoplankton ; Zooplankton
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 178pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Effects of different levels of energy and protein sources on the growth performance, feeding, survival rate and the chemical body composition of juvenile pacific white shrimp (2018)
    Details
    Publication Date: 2021-05-19
    Description: The present study was carried out in order to establish an economical effective diet for the pacific white shrimp in the southern part conditions of Iran. Three dietary energy levels (E1=262, E2=312, E3=362 Kcal 100 g-1 diet) and 6 ratios of fish meal (FM): soybean meal (SBM) [(P1= 100% FM+ 0% SBM), (P2= 80% FM+ 20% SBM),(P3= 60% FM+ 40% SBM), (P4= 40% FM+ 60% SBM), (P5= 20% FM+ 80% SBM),(P6= 0% FM+ 100% SBM)], 18 experimental diets were prepared. Completely randomized design was used to assign 54 polyethylene 300 litre round tanks provided by aeration and was stocked by 19 juvenile shrimp as 3 replicates to each treatment. Shrimps average weight was about 0.77 g at the start. After 56 days culture period, maximum growth and nutritional performance were observed in the P6E1 and P5E1 treatments. In addition, the highest survival rate of the shrimps was observed in the P1E1, P1E2, P3E3 and P5E3 treatments. Results indicated that protein, fat, fiber and ash contents of carcase were significantly affected by the treatments (P〈0.05). Results of the present study suggest the replacement possibility of at least 80% of dietary fishmeal by soybean meal in the diet of pacific white shrimp in the conditions of southern part of Iran.
    Description: Published
    Keywords: Pacific white shrimp ; Fish meal ; Soybean meal ; Aquaculture ; Growth ; Performance ; Feeding ; Protein ; Juvenile
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.531-547
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Study on Economic Aspects of Tilapia Culture in Iran (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The study on economic aspects of tilapia culture in Iran is a subproject of a comprehensive project on introduction of tilapia to central regions of the country. Two types of red and black of the exotic tilapia were imported from Indonesia in 2009 for research and were transferred to the research center of Bafgh. Since tilapia has capabilities in aquaculture such as resistance to diseases, fast growth, tolerance to high intensity, growth in freshwater, brackish water and in saline water, also ability to grow in pond, cage and aquaculture tanks, so it is likely that it’s production be of economic advantages. Therefore the present study looked at economic aspects of raising tilapia. The factors examined were feed expenditures, wages, fertilizer spending, costs of fish fingerlings, and pond preparation in two treatments of black and red tilapia in 0.45 hectare earth ponds, 3m2 aquaculture tanks with two replicates. Results of data analyses showed that benefit of each pond for black tilapia would be about 5968763 Rials. For red tilapia this amounted to 5939696 Rials. On total the benefit for black tilapia pond culture was 11940444 Rials while this for red tilapia was 11879392 Rials, so we can conclude that pond culture of tilapia is beneficial. Culture cost of black tilapia in tanks with 57 Kg outcome, was 2540600 Rials. Accordingly the cost of each kilogram of fish is 44572 Rials, so with 20 percent benefit, the price for each kilogram is 53485 Rials. Also for producing 37 kilograms red tilapia in tank some 2531500 Rials was expended. Each kilogram red tilapia cost 68419 Rls to produce which is much more than other cultured fish and if we expect 20 percent benefit the price of each kilogram of red tilapia would be 82103 Rls. So it is concluded that tank fish culture of tilapia would not be beneficial and economically speaking there would be no point to raise tilapia this way.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Red and Black Tilapia ; Economy ; Pond culture ; Tank culture ; Feeding ; Freshwater ; Brackishwater ; Saline water ; Tilapia ; Aquaculture ; Fertilizer ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 59pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    A survey of some biological aspects of Cobia (Rachycentron canadum) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Biology aspects of cobia (Rachycentron canadum) were investigated from October 2005 to December 2006 in Northern waters of Persian Gulf (Hormozgan province).The reproduction cycle, sexual maturity, sex ratio, Fecundity, Lm50, feeding, length frequency, growth parameters and mortality of cobia were studied from total of 509 specimens ranged from 19 to 159 fork length. Gonadosomatic index peaked during spring and summer with main peak in June. Spontaneous spawning occurs around the year with peak in June. The overall female to male ratio was significantly 1 : 1.49 (P〈0.05). Batch fecundity were estimated 1684954±118990 in 15 females. Relationship between total length and fecundity were calculated F=1.3717TL 2.9567 (r2= 0.82). Feeding studies indicated that the bony fishes were main food of cobia (76%) and followed by crustaceans (25%) and mollusks (11%). Rays were least food items (22%). Maximum and Minimum GaSI were observed in March (33%) and August (0.07%) respectively. Females reached 50% sexual maturity at 81.25 cm TL. The total length -weight relationship was W=0.0042L3.1162 ( r2=0.9852). Thetotal length-fork length relationship was TL= 1.1561FL-2.533 (r2= 0.9933). Growth parameters K, L ,and t0 were calculated by von bertalanfy growth equation : 0.11 (year1), 168.65 cm, 3.49 and -0.97 respectively. The instaneous rate of total mortality (z), natural mortality (M) and fishing mortality estimated by catch curve analysis were 0.30, 0.25, 0.14 (year1). Exploitation rate and Tmax were 0.36 and 28 yearrespectively.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Rachycentron canadum ; Cobia ; Sex ratio ; Fecundity ; Lm50 ; Feeding ; Mortality ; Growth ; Parameters ; Biology ; Maturity ; Spawning ; Fecundity
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 85pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Shrimp culture, Litopenaeus vannamei in the closed recirculation system (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The project carried out at Shrimp Research station of Bandargah in 2011 to determine the production parameters such as; Average body weight, production, survival and feed conversion ratio in closed- recirculating aquaculture system for shrimp culture. This project was performed in 4 m3 fiberglass tanks. 3 tanks was chosen for the control and 3 were assigned to treatments. Considered Species in this treatment was white shrimp (Litopenaeus vannamei) that with a density of 60 pieces per square meter, and was reared for 90 days. culture in control as usual and change water regularly, but the treatments did not change water during the period of culture. Water in the treatment tanks was going to turn the filter system and waste was removed by mechanical and coal filter embedded in the route, and after filtering was transferred to the wastewater tank. Wastewater Was aerated in this tank and after 24 hours was pumped out and return to treatments tanks. In the final of project, mean weight, survival rate and production for control and treatment, was respectively, 18.27 ± 2.84 and 20.70 ± 1.47 g, 73.83 ± 4.14 and 77.17± 13.66 percent, and 0.81 ± 0.14 and 0.97 ± 0.23 kg/m2. Statistical analysis results show that there are no significant differences found between treatments and control (P〉 0.05), although in all the above criteria, the relative improvement was achieved to compared of control. But the results of feed conversion ratio was 1.27 ± 0.16 for treatments that are significantly different (P 〈0.05) with controls (1.56 ± 0.23). This result showed that efficiency of the food was better in closed- recirculating shrimp culture system.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Shrimp ; Culture ; Litopenaeus vannamei ; Weight ; Survival rate ; Species ; Feeding
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 83pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Substitution of rotifer by a microencapsulated diet in yellow fin seabream (Acanthopagrus lotus) larviculture (2018)
    Details
    Publication Date: 2021-05-19
    Description: We examined the possibility of replacement of the live food (rotifer) with a microencapsulated diet (MED) from first feeding in yellow fin seabream larvae by utilizing compound feeding technique during the first two weeks of larval life. The experiment consisted of five treatments and a control group (100% rotifer), which was fed live food during experimental period (regime A), three experimental treatments which received MED supplementing with reduced rations of rotifer including 75, 50 and 25 percent of rotifer in the control treatment (regimes B, C and D, respectively), and finally a treatment received exclusively MED throughout the experiment (regime E). At the end of the experiment results indicated that the regimes A, B and C did not differ significantly for total lengths, final survival and stress test resistance (P〉0.05). In terms of dry weight, there was no significant difference between 100% live food treatment (A) and that received 75% live food in control treatment (B) (P〉0.05). The solely MED treatment showed significantly lower growth and survival than other treatments receiving rotifer (P〈0.05). The results revealed that complete replacement of live food with MED is still not possible in Acanthopagrus lotus larval rearing. Nevertheless, a substantial 50% reduction in the daily supply of live food can be achieved with a combination of microencapsulated diet and live food.
    Description: Published
    Keywords: Acanthopagrus lotus ; Yellow fin seabream ; Feeding ; Diets
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.53-66
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 8
    facet.materialart.
    Unknown
    Investigation of two crop culture of western white shrimp (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Two crop culture of western white shrimp with 2 treatments and 2 replicates in each treatments in earthen ponds with area 0.4 hectares at a density of 20 pl 18 in each square meter were done. For the culture of shrimp in the second stage, the post larvae cultured in nursery pond with area of 0.25 hectare, and density of 96 post larvae in each square meter, and then transfer to the rearing ponds. In each pond, 2 aerators with potency of 3 horsepower fixed. Every day horsepower clarified at 21p.m. to 23 p.m and out at 6 a.m to 7 a.m. The first stage of culture begun in 19 April with pl 18. The yield pick-up after 96 days. The stocking of pl in the nursery ponds was done in 25 July with pl16 and after 38 days hunted and transferred to second stage culture. The second culture was done in 1 September and pick-up after 65 days. For feeding of shrimps we used commercial food numbers 4001 until 4006. In the first mount the feeding of shrimps were done as blind feed and then with the shrimps biomass and with research of feeding trays. Water temperature, dissolved oxygen and pH daily in 2 times at the morning (6 a.m) and evening (at 15 p.m) and the salinity, transparency and water depth 1 time daily measured. In the first culture period (96 days), the mean weight, length, daily weight gain, FCR, survival percent shrimp production were 14.03 gr, 12.08 cm, 0.15 gr, 1.02 gr, 92 percent and 2132 kilograms and in the second culture period (65 days) 14.55 gr, 12.48 cm, 0.22 gr, 0.84, 73 percent and 2675 kilogarms measuered respectively. Totally, in the second period culture the initial weight of shrimps was higher than the first period culture 1.95 gr and 0.008 gr respectively, therefore growth indexes in the second period were better than the first culture period. Coefficient of determination of weight and lenth of shrimps with increase of cultue days, in the first and second culture periods, in the total cases the number were higher than 0.97. This shown that the role of increase of days on the increase of weight and lenth is higher than 97 percent. Also, determination of product moment, showed that there is very strong correlation between increase of days and increase of weight and lenth and between weight and lenth (0.97 to 0.99).
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Commercial ; Western white shrimp ; Two crop culture ; Earthen Pond ; Density ; Larvae ; Nursery pond ; Feeding ; Temperature ; Dissolved oxygen ; pH ; Salinity ; Transparency ; Weight gain ; FCR ; Survival
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 35pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 9
    facet.materialart.
    Unknown
    Study on effect of enriched Artemia with (HUFA) on reproductive parameters and comparing with current method (used marine worm) in Litopenaeus vannamei (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Nowadays, the use of live food enrichment is very common in aquaculture and as a practical method introduced. Artemia a potential food source and quality is suitable, it will have used for feeding fish and crustaceans (shrimp). In this study, Artemia enriched with unsaturated fatty acids used for increase the sexual maturity of the white leg shrimp (Litopenaeus vannamei). Thus, the young brood stocks transferred to Bandarga Research station. In order to achieve optimal weight, Brood stocks were feeding by food concentrate and food frozen fresh. In this study such as 3 treatments each with 3 replicates, which brood stocks were stocking in the fiberglass thank with density 2 to 3 (pieces/m2). They were feeding with meals different including 1) squid , pen shale and marine polychaeta worm (Perinereis nuntia), 2) squid , pen shale and Artemia biomass "fransiscan", 3) squid , pen shale and Artemia biomass enriched with unsaturated fatty acid (HUFA) SPARI SELCO solution after were eye ablation. The results showed that sexual maturity increased in the brood stocks fed with Artemia enriched which with significantly higher brood stocks fed with Artemia biomass and the marine worm (P 〈0.05) whereas significant difference was not found in the rate of sexual maturity brood stocks fed with Artemia biomass and marine worm (P〉 0.05). The other hand, histological studies showed that brood stocks fed with Artemia enriched than other two treatments contain were many mature follicles ready for ovulation. However, there was more absolute fecundity in the brood stocks fed with Artemia enriched, but don't found any significant differences in competition with other two treatments (P 〉 0.05). In addition, during this period, measured and recorded all factors physicochemical water and environment daily. Following this study showed that if the Artemia enriched as part of the diet can both caused eliminate unsaturated fatty acid deficiency diet and improved ovarian development and increase sexual maturity brood stocks female in a short interval. Finally, the results analyzed with statistical software spss 9.0, one way ANOVA and Tukey test.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Histological ; Physicochemical ; White leg shrimp ; Litopenaeus vannamei ; Artemia ; Biomass ; Enrichment ; Sexual maturation ; HUFA ; Aquaculture ; Feeding ; Fatty acids ; Brood stocks ; Density ; Squid ; Polychaeta worm ; Perinereis nuntia ; ANOVA
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 45pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 10
    facet.materialart.
    Unknown
    A survey of some biological aspects of cobia (Rachycentron canadum) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25125 | 18721 | 2018-08-26 13:28:59 | 25125 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Biology aspects of cobia (Rachycentron canadum) were investigated from October 2005 to December 2006 in Northern waters of Persian Gulf (Hormozgan province).The reproduction cycle, sexual maturity, sex ratio, Fecundity, Lm50, feeding, length frequency, growth parameters and mortality of cobia were studied from total of 509 specimens ranged from 19 to 159 fork length. Gonadosomatic index peaked during spring and summer with main peak in June. Spontaneous spawning occurs around the year with peak in June. The overall female to male ratio was significantly 1 : 1.49 (P〈0.05). Batch fecundity were estimated 1684954±118990 in 15 females. Relationship between total length and fecundity were calculated F=1.3717TL 2.9567 (r^2= 0.82). Feeding studies indicated that the bony fishes were main food of cobia (76%) and followed by crustaceans (25%) and mollusks (11%). Rays were least food items (22%). Maximum and Minimum GaSI were observed in March (33%) and August (0.07%) respectively. Females reached 50% sexual maturity at 81.25 cm TL. The total length -weight relationship was W=0.0042L3.1162 (r^2=0.9852). Thetotal length-fork length relationship was TL= 1.1561FL-2.533 (r^2= 0.9933). Growth parameters K, L, and t_0 were calculated by von bertalanfy growth equation: 0.11 (year1), 168.65 cm, 3.49 and -0.97 respectively. The instantons rate of total mortality (z), natural mortality (M) and fishing mortality estimated by catch curve analysis were 0.30, 0.25, 0.14 (year1). Exploitation rate and Tmax were 0.36 and 28 year respectively.
    Keywords: Biology ; Iran ; Persian Gulf ; Hormozgan province ; Rachycentron canadum ; Cobia ; Sex ratio ; Fecundity ; Lm50 ; Feeding ; Mortality ; Growth ; Parameters ; Biology ; Maturity ; Spawning ; Fecundity
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 85
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...