manual on hatchery production of seabass and gilthead seabream pdf
Manual on Hatchery Production of Seabass and Gilthead Seabream Volume 2
... A HATCHERY 95Project design 96Structure and construction typologies 97Timing and production 97Economies of scale and modular design 98Depreciation 99Points to consider for financing of ... fish larvae. This second part of the manual deals with the principles and guidelines for the design and construction of a commercial hatchery for gilthead seabream and seabass. This chapter ... General hatchery layout C. Broodstock unitB. Larval rearing unitD. Weaning unitA. Phyto-zooplankton unit Manual on Hatchery Production of Seabass and Gilthead Seabream Volume 2Food and AgricultureOrganization of theUnitedNationspart...
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Justification Effects on Consumer Choice of Hedonic and Utilitarian Goods pdf
... try to construct reasons for justification (Shafir,Simonson, and Tversky 1993), and it is easier to constructreasons for utilitarian consumption than for hedonic con-sumption. Hedonic goods ... utilitarian con-sumption and hedonic consumption are both discretionary, and the difference between the two may be a matter of degree and perception. Hedonic (utilitarian) consumptiontends to be perceived ... with hedonicconsumption.Another typical characteristic of purchase situations is thatpeople spend a combination of time (effort) and money forproduct acquisition. Time and money are often traded...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 1 pptx
... the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the ... Enrichment of ongrown Artemia 4.4.2.8. Control of infections 4.4.2.9. Harvesting and processing techniques 4.4.2.10. Production figures and production costs 4.4.3. Literature of interest ... permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Information Division, Food...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 2 doc
... consistency and unpredictable culture crashes due to contaminations and/ or fluctuating climatological conditions. Indoor algal production offers a better control of the culture conditions and ... of the composition of the culture medium on the proximate composition of various species of micro-algae is demonstrated in Table 2.13. The protein content per cell, which is considered as one ... inoculation and early growth period. Because the density of the desired phytoplankton is low and the concentration of nutrients is high, any contaminant with a faster growth rate is capable of outgrowing...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 3 ppt
... Influence of lipid composition of live feed on growth, survival and pigmentation of turbot larvae. Aquaculture International, 2:33-48. Skjermo, J. and Vadstein, O., 1993. Characterization of the ... Mass production on algae 3.5.3.4. Mass production on algae and yeast 3.5.3.5. Mass culture on yeast 3.5.3.6. Mass culture on formulated diets 3.5.3.7. High density rearing Intensive production ... the passage of the intestinal tract of the rotifers are killed as well. The concentration of the disinfection products differs according to their toxicity and the initial condition of the rotifers....
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 4 pptx
... screening of candidate strains and of eventual local populations, as well as the study of prevailing environmental conditions. Uncontrolled introduction of Artemia may thus lead to a decrease of natural ... exploitation. In: Book of abstracts of contributions presented at the International Conference “Improvement of the commercial production of marine aquaculture species”. G. Gajardo and P. Coutteau ... at first reproduction is a key factor determining the population growth rate, and the rate of colonisation of new environments with limited nutrient resources. Consequently, if environmental...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 5 docx
... intensive and requires additional facilities. Furthermore, Artemia cysts of a high hatching quality are often expensive, and decapsulation of non-hatching cysts means valorization of an otherwise ... aeration rate is a function of the tank size and the density of cysts incubated. Excessive foaming can be reduced by disinfection of the cysts prior to hatching incubation and/ or by the addition ... criterion is related to the total amount of food available for the predator per gram of cyst product (cf. calculation of food conversion). Table 4.2.5. Effect of incubation at low salinity on hatching...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 6 docx
... E. And Olsen, Y. 1992. Improvement of flat fish pigmentation through the use of DHA enriched rotifers and Artemia. Poster presentation at the 5th International Symposium on Fish Nutrition and ... control The incidence of microbial diseases has increased dramatically along with the degree of intensification in the larval production of aquaculture species. Treating microbial infections ... larvae of many species of marine fish, such as gilthead seabream, grouper, and turbot, can only be offered an Artemia diet after an initial period on a smaller prey, such as the rotifer, Brachionus...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx
... Enrichment of ongrown Artemia 4.4.2.8. Control of infections 4.4.2.9. Harvesting and processing techniques 4.4.2.10. Production figures and production costs 4.4.2.1. Advantages of tank production ... ingestion rate and/ or assimilation: including the quality and quantity of the food offered, the developmental stage of the larvae, and the culture conditions. More detailed information concerning ... for super-intensive Artemia production may be applied. The final selection of one or other type of installation will be subject to local conditions, production needs and investment possibilities....
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