Dear all,

I'm Irwan, from Indonesia. I have several ponds of P. Monodon. Lately, I was experiencing a very high FCR, almost 4. I'm confuse, how come my FCR was so high. Each pond (about 3000 sq.m) I put 4 feeding trays as a control system and each feeding trays I put 1% of the feed. After 1.5 hours I checked the trays. If 4 trays were empty, than I increased the feed but if 1 or 2 trays that not empty, than I held the feed the same amount. My feeding time per day was 5 times. I also experiencing the very high NH3, almost 1.5 ppm on the third month. My question is, how to control the FCR?

I've heard that feeding trays system can reduce the FCR to 1.4. Can you tell me how to do that system?

Thank you.

Hello Mr. irwan

you mentioned on 2 trays which are full when you check them.

if it is right it seems these 2 trays are located in bad condition

(sludge)in the bottom of pond.

in the bottom of pond.shrimp hasn't trend to eat food in there.

therefore,you can not manage the feeding consumption in

the pond.if there is other condition cocern with these trays

explain in details, please.

bye

dear irwan.
u put all cheak trays in 1 pond 1000 shrimps per 1 cheak tray. u put all feedings in cheak trays (4 times). cheacking time 3 hours. u put feed according dencty& survival.
itry this method. i got 1:1 fcr in 90 doc culture, good pond bottam condition.leabour cost is more. but lot of benifits r there.
try 1 pond. if u satisfie. implement all ponds.


thanku

Dear Appaji,

Thank you for the reply. You mention 1 feeding trays per 1000 shrimp. How big is the tray? And how to determine when to increase the amount feed when the trays empty? Should I hold for couple of days or increase the feed instantly?

Thank You

Dear all,

I experimented with feeding trays over 1 year (3 cycles).
The best result has been in low density stocking ponds (<5/m2).

I used in a 3.200 m2 pond 20 feding trays of the size 100 cm x 200 cm x 5 cm.

After 90 day farming the average size (P. Monodon) has been 28 gr. The FCR has been 0.95.

In a high density stocking 30 - 40 (same size of pond) I failed! Looks like I need 40 - 50 feding trays.

Feding from feding trays as I observed help me to maintain a good water quality (for a long period) as well lower my feeding.

Regards,
Dieter

hello dear irwan,
tray size is 60cm/60cm/5cm stoocking 8per persqmput 60 trays per hector.
cheak trays after 2 hours all r over u increese. 2.5 hours normal time. after 3 hours feed is there reduce some %
thank u

dear all,
now i am facing problem with weed. i was try to remove man power. but iam not able to cantrole 100%
i serch in google water plants i found that weed name is fan wort. any expert give me advice to kill that weed with any chemecal or herbiside. if there no remrdy i am going to stop culture for 1 year

http://www.exo-terra.com/en/images/products/water_plants.jpg thank u