The amount of the feed for maintenance is calculated based on the sampling results. To facilitate hitungannya calculated, the amount of feed given to the following provisions:
1. Shrimp stadia zoea, with the amount of 1.5 ppm + feed plankton.
2. Mysis shrimp stadia, namely the amount of 1 ppm feed.
3. Shrimp post flyblow stadia, namely the amount of 1 ppm feed + nauplii Artemia.
4. Shrimp the size of PL 20 - 5 grams, namely the amount of 25% - 50% of total body weight per day.
5. Shrimp size 6 - 10 grams, namely the amount of 15% - 25% of total body weight per day.
6. Shrimp size from 11 to 15 grams, namely the amount of 8% - 15% of total body weight per day.
7. Shrimp with 20-30 grams of weight, namely the amount of 4% - 8% of total body weight per day.
In addition to accuracy in the amount of feed given frequency also develop an important role in the effectiveness of the use of feed. All this of course should be tailored to the biological nature of shrimp that are kept. Estimation of the number and weight of the sampling shrimp also play a role is very important, because it can determine the quantity of feed must be provided.
In connection with teknolegi semi-intensive cultivation of shrimp and shrimp ponds in the intensive program of the feed can be made, such as table 8.
Food is the largest part of the cost of production and is also suspected to be the determinant factors in the economic value of shrimp cultivation. One of the things that must be taken by the farmers embankment is Feed Conversion Ratio (FCR).
FCR is how much value kg of food provided to the ponds can produce 1 kg of shrimp that are kept in the ponds. FCR value addition influenced olehjenis kept in the shrimp ponds and the quality of food, is also affected by the provision of food programs and environmental management ponds.
Farmers ponds must be careful of the value of FCR, as with improving the value of FCR, other than the production cost can be pressed, FCR also related to speed growth and the basic conditions of ponds. Value FCR bad identic
al with the growth of bad shrimp, shrimp that are the basic conditions of stress and the dirty ponds (Thamassart, 1991).GROWTH UDANG
(normal)
source: Ir. Sri Umiyati Sumeru
Dra. Suzy Anna
