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 con...
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...
Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 4 pptx
... the seasons 199 3-1 99 4 and mainly 199 4-1 99 5.
Already in the late seventies it appeared that the nutritional value of Artemia, especially
for marine organisms, was not constant but varied among ... North America and seemed
to be unlimited. However, with the expansion of aquaculture production in the 197 0’s,
the demand for Artemia cysts soon exceeded t...
Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 7 pptx
... - 23.1 10.5 - 22. 79 0.5
Cultured juveniles & adults 49. 7 - 62.5 9. 4 - 19. 5 - 9. 0 - 21.6
Wild adults 50.2 - 69. 0 2.4 - 19. 3 - 8 .9 - 29. 2
Artemia juveniles and adults are used as a nursery ... ration
at a maximum concentration of 200 g food. l
-1
. Even at these concentrations, the food
suspension is so thick that the...
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
pro...
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 ... use
of live food organisms as feed for the developing larvae. The present manual reviews and
summarizes the latest developments concerning the...
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 ...
rate and in this way the growth rate and not the cell density is kept constant.
Laing ( 199 1) described the construction and operation of a 40 l continuous syste...
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 ... Introduction
Among the live diets used in the larviculture of fish and shellfish, nauplii of the brine
shrimp Artemia constitute the most widely used...
Tài liệu Manual on the Production and Use of Live Food for Aquaculture - Phần 5 docx
... .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 .001 .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, compa...
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 rec...