Small-scale freshwater fish farming - Chapter 7,8 pptx

... on-line. Contact: ILEIA, Zuidsingel 16, 3811 HA Amersfoort, The Netherlands T: +31(0)3 3-4 673870, F: +31(0)3 3-4 632410 E: ileia@ileia.nl , W: www.leisa.info Small-scale freshwater fish farming ... Raising fish in ponds: a farmer's guide to Tilapia culture, 1990. Murnyak, D. and M. Murnyak. Evangelical Lutheran Church of Tan- zania. 75p. Small-scale freshwa...

Ngày tải lên: 02/07/2014, 06:20

... culture of tilapia, and either catfish or snakehead (in general, a predatory fish) to control the exces- Small-scale freshwater fish farming 72 Most cultured fish species are seasonal breeders. ... the fish (e.g. increase the water level) and induce fish spawning (see previous chapter for more details on the reproduction of tilapia, catfish and carp). Small-scale...

Ngày tải lên: 02/07/2014, 06:20

... ISBN Agromisa: 97 8-9 0-8 57 3-0 7 7-4 ISBN CTA: 97 8-9 2-9 08 1-3 6 4-4 Small-scale freshwater fish farming 10 Figure 2: A: extensive, B: semi-intensive and C: intensive fish farming methods ... farming 6 Part I: Fish farming: basic principles Figure 1: Advantages of fish farming Small-scale freshwater fish farming 8 Advan...

Ngày tải lên: 02/07/2014, 06:20

... farmed fish from escaping the pond) Small-scale freshwater fish farming 30 birds, you can take certain measures to prevent the birds from catching fish. For instance, birds that pick fish ... The benefits of periphyton-based fish farming are summarised in figure 21. Figure 21: Benefits of periphyton-based fish farming: food, shelter and health Fish farmi...

Ngày tải lên: 02/07/2014, 06:20

... for fish farming you should consider the effect it may have on the envi- ronment. Important natural areas (e.g. fish nursery grounds like man- grove forests) should not be used for fish farming. ... suitable for fish farming, unless the bottom is first covered with plastic or heavy clays. Figure 27: Water permeability test (Viveen et al., 1985) Small-scale freshwater...

Ngày tải lên: 02/07/2014, 06:20

... 8-1 0 Red snapper 1 5-2 0 Wild, hatchery 9-1 0 0. 5-0 .6 8 0-9 0 7. 5-1 0.0 3-4 Coral trout 1 5-2 0 Hatchery, wild 1 2-1 4 0. 5-0 .7 7 0-8 0 7. 5-8 .0 1 8-2 0 Mouse grouper 1 2-1 5 Hatchery 1 8-2 0 0. 4-0 .6 6 0-8 0 6. 0-7 .0 ... Hatchery 1 8-2 0 0. 4-0 .6 6 0-8 0 6. 0-7 .0 4 5-4 8 Cobia 3-5 Hatchery, imported 1 0-1 2 4. 0-5 .0 8 0-9 0 8....

Ngày tải lên: 01/07/2014, 10:44

... THE COUNT OF MONTE CRISTO ALEXANDRE DUMAS CHAPTER 78-P2 "What would you have, my dear viscount?" said Monte Cristo, wiping his hands ... will not be strangers, they will be friends." "Ah, but the friends of to-day are the enemies of to-morrow; Beauchamp, for instance." "So you recommend" "I ... window for three weeks that is to say,...

Ngày tải lên: 02/07/2014, 05:20

... lên: - Ðại sư là phương trượng ư? Vậy thì hay lắm! - Mau giao người ra đi! Bằng không thì chỉ một mớ lửa là cả lão lẫn ngôi chùa đều bị cháy ra tro ! - Có lý nào thế được? Có lý nào thế được? - ... vào chùa Thanh Lương. - Vụ này các vị có lỗi rồi. Sao lại giấu người của bọn ta? - Muốn tử tế thì giao người trả ra, bằng không hừ hừ Vi Tiểu Bảo đứng một bên nghĩ thầm:...

Ngày tải lên: 10/12/2013, 01:15

... put instructions or a command-like sentence in the status line. For example, for the iconic images of the outline-style table of contents (see the bonus application in Chapter 50 on the CD-ROM ), the message ... HREF=” locationOrURL ” [NAME=” anchorName ”] [TARGET=” windowName ”] [onClick=” handlerTextOrFunction ”] [onDblClick=” handlerTextOrFunction ”] [onMouseDown=” handlerTextOrFunction...

Ngày tải lên: 10/12/2013, 15:15

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