Projected annual duckweed production – 15,000 kilos.
Production cost per kilo duckweeds – 75 centavos -per kilo fresh duckweeds
15,000 kilos duckweeds is enough to supply partial feed requirement of 3 hectares fishpond under semi-intensive culture management (5 pes fingerings per square meter).
b) 1,000 square meter fishpond project* using duckweeds as alternative feed
Income Estimate
- Projected production (80% survival rate): 666.67 kgs @ P75/kg.
- Gross sales: 50,000
- Less production expenses: 17,987
- Net income: 32,013
- ROE - 178%
Pagpaparami ng Duckweed Sa Palaisdaan
Ang duckweed (Lemna perpusilla) ay isang uri ng maliit at lumulutang na halaman sa tubig tabang. Wala itong sanga, luntian o berde ang dahon at may sukat na 0.1-0.3 sentimetro. Ang kanyang mga ugat ay pino at kulay krema.
Nabubuhay ang duckweed sa mga lugar na hindi dumadaloy ang tubig, Mabilis itong dumami sa tubig na may agricultural at domestic waste. Bumubuo ito ng maliliit at makakapal na pulutong o colonies.
Ang duckweed ay isa sa mga halaman na may mataas na protina (depende sa paraan at kundisyon ng pagpaparami). Ito ay may 2-4% oxalic acid (katumbas na bigat) na siyang dahilan ng pagiging masustanya nito at dagliang pagkatunaw. Dahil dito, angkop itong gamitin bilang dagdag-pakain o feed supplement sa isda, tulad ng tilapia at karpa. Maaari itong ipakain ng sariwa o bilang sangkap ng pakain sa isda.
Sa kasalukuyan, kakaunti pa lamang ang nagpaparami ng duckweed sa Pilipinas kung kaya’t wala pang gaanong teknolohiya na maaaring gamitin. Ayon sa pag-aaral na isinagawa ng Bureau of Fisheries and Aquatic Resources Region 4A, Regional Fisheries Research and Development Center -Freshwater Fisheries Research Station (BFAR 4A-RFRDC-FFRS), Bambang, Los Banos, Laguna, ang paggamit ng tuyong ipot ng manok sa pagpaparami ng duckweed ay nakapagpataas ng produksyon, nutrient composition, at protina mula 11.04%-22.60%, mahigit na 48% na pagtaas ng crude protein (Chavez, et al, 2005).
Gayundin, napag-alaman na ang kombinasyong 30% sariwang duckweed at 70% komersyal na pakain ay mainam para sa pagpapalaki ng GET-EXCEL tilapia (Chavez, et al, 2004).
Pamamaraan sa Pagpaparami
1. Paghahanda ng paiaisdaan
- a. Patuyuin ang paiaisdaan upang maalis ang mga isda at iba pang mga organismo na maaaring kumain sa duckweed.
- b. Hugasan/linisin ang paiaisdaan upang maalis ang mga dumi lalo na ang mga nakakalasong kemikal.
- c. Patuyuin sa a raw upang maalis ang mga nakakalasong gas.
- d. Alisin ang iba pang dumi at sobrang putik.
- e. Kung maasim (acidic) ang lupa, maglagay ng apog sa darning 500 kilo bawat ektarya bawat buwan.
- f. Magpapasok ng tubig mula sa lalim na limang pulgada hanggang tsang talampakan.
- g. Maglagay ng 4,000 kilong tuyong ipot ng manok bawat ektarya bawat buwan sa pamamagitan ng tea bag method.
2. Pagkalipas ng tatlong araw, maglagay ng dalawang kilong sariwang duckweed sa
paiaisdaan.
3. Anihin ang duckweed makalipas ang pitong araw. Gumamit ng salok sa pag-aani. Ang dami ng aanihin ay ayon sa kinakailangang alagaang isda.
4. Pagkaraan ng isang buwan ulitin ang pamamaraan ng pagpaparami ng duckweed.
- Sukat: 200 sq. m.
- Paunang dami ng punla: 2 kilo
- Pang-araw-araw na produksyon: 17.3 kilo
- Kabuuang produksyon sa loob ng isang linggo: 121.1 kilo
- Halaga ng produksyon: P 236.14
- Halaga ng pagpapatubo ng isang kilong duckweed: P1.95
Pagpapanatili ng Kalidad ng Tubig
- Temperature: 29.8° – 30.2° C
- pH: 7.15 – 7.45
- Dissolved Oxygen (DO), mg/L: 0.62 – 1.83
- Total Hardness, mg/L: 107.5 – 130.0
For more information, contact:
Bureau of Fisheries and Aquatic Resources (BFAR)
Region 4A (CALABARZON)
2/F ICC Bldg. NIA Compound
EDSA, Diliman, Quezon City
Tel: (02) 926-8714, Fax: (02) 926-8616
Web: region4a.bfar.gov.ph
source: bfar.gov.ph, photos from nilesbio.com, k41.pbase.com
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2010 · All Rights Reversed ·
[...] As far as feed goes it all depends on the fish you are using. I have tilapia in my system. Tilapia are a wonderful choice in tropical climates as they are extremely forgiving as far as water quality is concerned and they are not picky eaters. They are vegetarians and will consume leafy scraps from the garden as well as water hyacinth, water lettuce and duckweed. [...]
I’m so glad you’re making this information available. To the best of my knowledge, duckweed is mostly considered a nuisance here in the United States. Its value has not been fully explored. There are those who do appreciate it though. Here is a link to an article demonstrating that duckweed is appreciated by some people who raise koi for fun.
http://www.destinysurvival.com/2009/10/30/survival-connections-duckweed-the-space-beagle-and-quilts/
Here in mindanao where banana plantations are huge duckweeds are pest here they produce tons of it but they cannot solve they problem because it causes depletion of oxygen to there waste water ponds and thus make bio-oxygen demand (bod) unpassable to denr laws on clean water act.
“Ton’s of duckweeds are for free here in Mindanao”
[...] includes 45-days delayed feeding technology, use of duckweeds as feeds and polyculture (2 [...]
yup its a book, pls where i buy it?thanks,how much
@jm, email at earthkeepers_garden@yahoo.com.ph.
LIKASAKA is a book, right?
does anyone knows about,LIKASAKA?,, or organic aquafeeds? thanks enmail me info,,thanks
where should i buy this duckweeds,,help please,,thanks
hi,its great, by d way i want to ask po all about salted egg production,,,please, i need it po in m feasibility study
@czarina, salted egg production here:
http://www.mixph.com/2008/09/how-to-make-salted-eggs-itlog-na-maalat-in-heater-clay-method.html
May ron na ba duckweeds dito sa caraga region? saan ako pwd manghingi nag planting materials sa BFAR Caraga Region ba?
sirs, saan po kaya pwede makakuha or makabili ng binhing duckweeds, d2 po ako sa bulacan. Kindly email to erik_0930@yahoo.com
@erik, inquire ka directly sa BFAR (02) 926-8714, baka meron silang listahan ng mga suppliers/growers.