CONDITIONS OF BIOLOGIS AND HABIT EAT PRAWN of WINDU.
A. CONDITIONS OF BIOLOGIS.
Prawn of Windu ( Penaeus Monodon) included in Penaidae familia. Sub of Ordo Natantia, Ordo Decapoda and of Klas Crustacea. This Group [of] life [in] territorial water base / bentik, frown upon light and hide [in] mud in the day time. Have the character of cannibal, especially in a state of peckish and [there] no available food, having ammonia ekskresi which high enough and for growth needed to change husk ( moulting). Some environmental factor which influence the continuity of life and growth of prawn shall be as follows :
1. Temperature.
Prawn require temperature gyration [among/between] 25 till 32°C [so that/ to be] earning life and grow normally. Temperature territorial water excelsior, fast excelsior [of] metabolism in prawn body. This condition will make balance to at the height of accelerateing food consumption. If/When temperature increasing, prawn of stres and will [release] abundant mucus. On the contrary if/when temperature too low, prawn will less active eat and make a move, so that its growth will be tardy.
2. Salinitas.
Prawn of Windu have tolerance live [at] gyration of salinitas 4 - 40 permil and grow better [at] gyration 12 - 30 permil. If salinitas too low or too high, Iust to eat there [is] still, but food conversion become high because body energi many castaway 3. pH. For the growth of, prawn of windu need gyration of pH 7,4 - 8,5 and will kill if/when tired pH [of] very low number 6 and is highest 9. If/When pH irrigate too low or often lower at night, hence coat calcify [in] prawn husk will decrease because permeated internally. [At] this condition [of] oxygen consumption mount, permeability of downhill body and its gill destroy.
4. Condensation Oxygen ( DO).
Oxygen needed [by] prawn to burn consumed [by] food Iihat vitamins [is] prawn and permeated [by] body or elaborated to become energi. Oxygen condensation which both for growth of prawn [is] [among/between] 85 - 125 % saturated or 4 - 6 ppm. In pregnant water enough oxygen, seen prawn activity [is] to rest and once in a while make a move to forag. On the contrary in obstetrical water [of] its oxygen lower, prawn will see active make a move and swim because stres. However, [at] oxygen rate which saturated too can cause disease of gas bubble ( Gas of Bubble Disease).
source :Ir. Sri Umiyati Sumeru
Dra. Suzy Anna
