practical optical system layout- and use of stock lenses

... which is an extremely useful tool in optical system layout, and we make extensive use of it in this book. When a lens or optical system has a zero thick- ness, the object and image calculations ... reserved. Any use is subject to the Terms of Use as given at the website. replacement of thin lenses with thick lenses is actually quite easy. The complete description...

Ngày tải lên: 04/07/2014, 07:18

... Harvesting/concentration and cold storage of rotifers 3.7. Production and use of resting eggs 3.8. Literature of interest 3.9 Worksheets Worksheet 3.1. Preparation of an indicator solution for determination of ... 6.1.4.2. Detrital system 6.1.4.3. Autotrophic system 6.1.4.4. General procedure for pond culture 6.1.4.5. Contamination 6.1.5. Production and use o...

Ngày tải lên: 15/12/2013, 00:15

... Literature of interest Anonymous, 1991. The design and operation of live feeds production systems. In: Rotifer and micro-algae culture systems, Fulks, W. and Main K.L. (Eds.). Proceedings of a US- Asia ... contamination during handling and poor temperature regulation. To reduce risks, two series of stocks are often retained, one which supplies the starter cultures for the p...

Ngày tải lên: 15/12/2013, 00:15

... rinsed, a small part is used for maintenance of the stock, and the remaining rotifers can be used for upscaling. Furthermore, after some months of regular culture the stock cultures will be ... healthy and clean stock material. However, the continuous maintenance of live stock cultures of Brachionus does not eliminate the risk of bacterial contamination. Figure 3.5....

Ngày tải lên: 15/12/2013, 00:15

... delivery of vitamins, chemotherapeutics and vaccines. Furthermore, a better knowledge of the biology of Artemia was at the origin of the development of other Artemia products, such as disinfected and ... screening of candidate strains and of eventual local populations, as well as the study of prevailing environmental conditions. Uncontrolled introduction of Artemi...

Ngày tải lên: 15/12/2013, 00:15

... 4.2.4. Direct use of decapsulated cysts The direct use of Artemia cysts, in its decapsulated form, is much more limited in larviculture of fish and shrimp, compared to the use of Artemia nauplii. ... 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 composition (in % of dry matter) of d...

Ngày tải lên: 15/12/2013, 00:15

... larvae and nauplii length of Artemia from seven geographical sources offered as food to fish larvae (modified from Beck and Bengtson, 1982). 4.3.6.3. Marine fish The larvae of many species of ... fast harvesting of large volumes of Artemia nauplii and allows complete removal of debris from the hatching medium. This technique results in a significant reduction of la...

Ngày tải lên: 15/12/2013, 00:15

... Engineering 11: 107-119. Dhont J., Lavens, P. and Sorgeloos, P. 1993. Preparation and use of Artemia as food for shrimp and prawn larvae. In: CRC Handbook of Mariculture. 2nd Edition. Vol 1: Crustacean ... removal of the complex and thick yeast cell wall by enzymatic treatment and/ or supplementation of the diet with live algae significantly improved assimilation rate...

Ngày tải lên: 15/12/2013, 00:15

... acidity of the bottom. The use of organic fertilizers increases the risk of infections. This risk can be reduced by composting the manure before use. One of the main disadvantages of organic ... advantages and disadvantages of organic fertilizers. The organic fertilizers most often used in aquaculture are chicken, quail and duck manure. Cow, pig and goat dung have a...

Ngày tải lên: 15/12/2013, 00:15

... value of Daphnia 6.1.3. Feeding and nutrition of Daphnia 6.1.4. Mass culture of Daphnia 6.1.5. Production and use of resting eggs 6.1.6. Use of Moina 6.1.1. Biology and life cycle of Daphnia ... and 3.4%, respectively). Specific levels of EPA and DHA are respectively 6% and 17% in adults fed Dunaliella, and 18% and 32% in adults fed Rhodomonas. In...

Ngày tải lên: 15/12/2013, 00:15