Small-scale freshwater fish farming - Chapter 9 pptx
... Netherlands. 94 p. Raising fish in ponds: a farmer's guide to Tilapia culture, 199 0. Murnyak, D. and M. Murnyak. Evangelical Lutheran Church of Tan- zania. 75p. Small-scale freshwater fish farming ... 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...
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 ... freshwater fish farming 4 Contents Part I: Fish farming: basic principles 6 1 Introduction 7 2 Fish farming practices 9 2.1 Methods of fis...
Ngày tải lên: 02/07/2014, 06:20
Small-scale freshwater fish farming - Chapter 3,4 pps
... out the length and width of the pond (figure 9) . Figure 9: Staking out the pond (Murnyak and Murnyak, 199 0) Small-scale freshwater fish farming 36 has been used up throughout the night). ... 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...
Ngày tải lên: 02/07/2014, 06:20
Small-scale freshwater fish farming - Chapter 5,6 ppt
... suitable for fish farming, unless the bottom is first covered with plastic or heavy clays. Figure 27: Water permeability test (Viveen et al., 198 5) Small-scale freshwater fish farming 40 ... 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...
Ngày tải lên: 02/07/2014, 06:20
Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-THE ADVENTURES OF HUCKLEBERRY FINN CHAPTER 9 pptx
... next, when it was just about the bluest and blackest - - FST! it was as bright as glory, and you'd have a little glimpse of treetops a- and a wooden leg. The straps was broke off of it, but, ... THE ADVENTURES OF HUCKLEBERRY FINN CHAPTER 9 I WANTED to go and look at a place right about the middle of the island that I'd ... "I wouldn't want to be nowhere els...
Ngày tải lên: 24/12/2013, 16:15
ENVIRONMENTAL RESTORATION of METALSCONTAMINATED SOILS - CHAPTER 9 pptx
... 2-1 , S-2, S-3 Tlaxcoapan Lagunilla 191 2 87 2-4 , S-5 Tlahualilpan Tepatepec 191 2 87 2-6 , S-7, S-8 Mixquiahuala Progreso 192 0 79 S -9 , S-10 Tepatepec Tepatepec 195 4 35 S-11 Actopan Lagunilla 197 2 ... et al., 198 0; Ellis et al., 198 6; Peters and Shem, 199 5; Elliot, 198 9; Bowman et al., 198 1; Soltanpur and Schwab, 197 7; Barbarick and Workman, 198 7; Peters and Ku, 198 7;...
Ngày tải lên: 18/06/2014, 19:20
LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-VANITY FAIR -WILLIAM MAKERPEACE THACKERAY -CHAPTER 9 pptx
... grand piano. Being a light-complexioned woman, she wore light clothes, as most blondes will, and appeared, in preference, in draggled sea-green, or slatternly sky-blue. She worked that worsted ... and wife, in a snug farm, with a adhered to other old habits, he never fuddled himself with rum-and-water in his son’s presence, and only talked to his servants in a very reserved and polite ....
Ngày tải lên: 01/07/2014, 10:20
Fish farming in Asia pptx
... grouper 1 5-2 0 Hatchery 9- 1 2 0. 5-0 .7 8 0 -9 0 7. 5-8 .0 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 ... 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 4 5-4 8 Cobia 3-5 Hatchery, imported 1...
Ngày tải lên: 01/07/2014, 10:44
Handbook of Plant Nutrition - chapter 9 pptx
... Portugal, 199 2, pp. 593 – 596 . 86. R.E. Engel, J. Eckhoff, R. Berg. Grain yield, kernel weight, and disease responses of winter wheat cul- tivars to chloride fertilization. Agron. J. 86: 891 – 896 , 199 4. 87. ... 124:287– 290 , 199 0. 33. M. Hoffinger, M. Bottger. Identification by GC-MS of 4-chloroindolylacetic acid and its methyl ester in immature Vicia faba broad bean seeds. Phytochemistry...
Ngày tải lên: 02/07/2014, 00:20