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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx

... ration at a maximum concentration of 200 g food. l -1 . Even at these concentrations, the food suspension is so thick that the risk for clogging of the food lines is quite high. It follows The ... evaluation of dry food is the consistency of the food quality and supply, and the possibility for storage without loss of quality. It follows therefore that bulk products must be stored in a dry and ... influence the feeding behavior of Artemia by affecting the filtration rate, ingestion rate and/ or assimilation: including the quality and quantity of the food offered, the developmental stage of the...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 1 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 1 pptx

... 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 legal ... 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 ... larvae. The present manual describes the major production techniques currently employed for the cultivation of the major types of live food commonly used in larviculture, as well as their application...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 4 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 4 pptx

... par India Bombay Bahinder - - Kelambakkam - - India Madras Vedaranyam - - Veppalodai - - Pattanamaruthur - - Spic Nagar - - Thirespuram - - Karsewar Island - - Saltwater springs P A. ... North America and seemed to be unlimited. However, with the expansion of aquaculture production in the 1 970 ’s, the demand for Artemia cysts soon exceeded the offer and prices rose exponentially, ... Harbour - - India Kanyakumari Thamaraikulam P A. par Abu-Graib, Baghdad P A. par Basra - - Dayala - - Iraq Mahmoodia - - Urmia Lake B A. urm Schor-Gol - - Shurabil - - Iran Athlit - - Eilat...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 8 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 8 pptx

... predators from entering the culture ponds. The same type of filters as described for large salt operations can be used. Moreover, the small size of the ponds allows the use of so-called filter boxes. ... bottom, they should only be used for a limited period of time. Recommended levels of organic manure are 0.5 to 1.25 ton.ha -1 at the start of the production season with dressings of 100 to ... use in aquaculture. Therefore, the selection of the strain best adapted to the particular ecological conditions of the site and/ or most suitable for its later application in aquaculture is very...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 9 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 9 pptx

... However, one should be aware that the greater the surface area of the net the more effective and rapid the filtration. Hence, the upper limit of the dimensions of the nets depends on the ease of handling ... along distribution pipes to the place of consumption, the normal practise is to concentrate and transport the harvested zooplankton in 50 l containers. Under these conditions the survival of ... food compared to the infrastructure and production costs of the live food items discussed earlier. On the other hand, there are also major drawbacks in the use of zooplankton, including: (1)...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 10 pptx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 10 pptx

... meet the needs of aquaculture workers of member countries for the synthesis of information in the field of aquaculture nutrition and feed development. 300 and depends largely upon the size of ... under controlled hatchery conditions requires not only the development of specific culture techniques, but in most cases also the production and use of live food organisms as feed for the developing ... COVER The success of any farming operation for fish and shellfish depends upon the availability of a ready supply of larvae or “seed” for on- growing to market size. The cultivation of fish and...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 2 doc

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 2 doc

... The nutritional value of micro-algae can vary considerably according to the culture conditions. For example the effect of the composition of the culture medium on the proximate composition ... 0.4 1 0-1 5 5-1 50 102 -1 05 Speirs Levy 4.103 0.2 1 0-2 0 5 -7 5 104 -1 0 7 Improved Neaubouer 2.104 0.1 2 0-4 0 (phase) 2-3 0 104 -1 0 7 Petroff Houser 2.105 0.02 4 0-1 00 0. 5-5 104 -1 08 ... settlement of abalone larvae. After metamorphosis, the spat graze on the micro-algae until they become large enough to feed on macro-algae. The most common species of micro-algae used on the feeder...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 3 ppt

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 3 ppt

... survived 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 ... 250 - 300 0. 37 92 - 110 300 - 350 0.33 100 - 1 17 350 - 400 0.30 105 - 120 400 - 450 0. 27 1 07 - 120 450 - 500 0.23 105 - 1 17 > 500 0.25 125 > 1200 0.20 240 Furthermore, all efforts ... starvation. 3 .7. Production and use of resting eggs For the mass rearing of rotifers as larval food the amictic way of reproduction (see 3.3.) should be favored. However, when the interest...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 5 docx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 5 docx

... .002 .001 17 .001 .001 .001 .001 .001 .001 18 - .001 .001 .001 .001 .001 19 - - .001 .001 - - 20 subtract correction from measured density - - - - - - 21 - - .001 .001 .001 - 22 .001 .001 ... during the first two weeks, the use of decapsulated cysts constitutes a saving of over one third in the amount of Artemia cysts used, compared to the use of live nauplii. Table 4.2.4. The proximate ... incubation and/ or by the addition of a few drops of a non-toxic antifoaming agent (e.g. silicone antifoam). The temperature of the seawater is preferentially kept in the range of 2 5-2 8°C; below...
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Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 6 docx

Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 6 docx

... 2.5 1 3-1 6 2. 7- 3 .0 1 7- 1 9 5. 0 -7 .0 2-5 2 0-2 3 3. 0-4 .3 3-1 1 5 -7 2 4-2 7 0 1 4-1 7 7- 1 0 2 8-2 9 1 7- 2 0 1 0-1 5 3 0-3 4 20 1 0-1 5 1 0-1 5 3 5-3 7 20 0 2 0-3 0 3 8-4 1 0.05 20 3 0-4 0 Start of weaning 2 0-1 5 4 0-5 0 ... enhanced the survival of P. monodon PL-15 and the osmotic resistance of PL-10. This has recently been confirmed with the production characteristics of P. monodon PL-10 and PL-20 being significantly ... contain high levels of thiamin ( 7- 1 3 µg.g -1 ), niacin (6 8-1 08 µg.g -1 ), riboflavin (1 5-2 3 µg.g -1 ), pantothenic acid (5 6 -7 2 µg.g -1 ) and retinol (1 0-4 8 µg.g -1 ). A stable form of vitamin C (ascorbic...
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