ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Waste Output and Loading in Prawn (Macrobrachium rosenbergii De Man) Culture at Different Sizes and Feeding Frequencies)

ผู้เขียน:Sontipan Pasugdee, Pratuk Tarptipwan, Orapin Jintasathaporn, ดร.อุทัยรัตน์ ณ นคร, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

The waste from freshwater giant prawn cultured water were evaluated after feeding with diet of 7.09?0.04 % moisture, 32.60?0.14 % protein, and 4.80?0.13 % fat. The leaching from formulated feed at 0.5, 1, 2, and 3 hours showed soaking period affected on the nutrient leaching and feed stability (p<0.05). Leaching rates were highest in the 0.5 hour (20.97?0.06 g/100 g feed/h), but continued for 3 hours. The highest dry weight lost of 15.92?0.08 % was found at 3 hours. Protein was significant lower but fiber was significantly higher (p<0.05) in longer soaking period feed. The Digestibility and feces leaching of different size prawns (medium size, 100.97 g and large size, 146.56 g) at different feeding frequency (2 and 3 times/day) were also examined. The results showed that prawn sized and feeding frequency were not affected on the daily feed intake. However, the large size prawn had feeding digestibility of 90.61-93.33 % which were higher than medium size prawns (85.05-87.44 % feeding digestibility). The highest nitrogenous waste loaded were found in large size prawn fed 3 times/day.

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 040, Issue 5, Jan 06 - Jun 06, Page 269 - 275 |  PDF |  Page