Aquacultura Indonesiana
Vol 19, No 2 (2018)

Optimum Feeding Rate for the Sub-adult Olive Flounder, Paralichthys olivaceus, Fed Practical Extruded Pellets at Optimum Water Temperature


Shin, Seung-Jun ( College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, South Korea ) , Shin, Seung-Jun ( College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, South Korea ) , Bai, Sungchul C. ( Department of Marine Bio-Materials and Aquaculture, Pukyong National University, Busan 608-737, South Korea ) , Bai, Sungchul C. ( Department of Marine Bio-Materials and Aquaculture, Pukyong National University, Busan 608-737, South Korea ) , Lee, Kyeong-Jun ( Department of Marine Life Science, Jeju National University, Jeju 690-756, South Korea ) , Lee, Kyeong-Jun ( Department of Marine Life Science, Jeju National University, Jeju 690-756, South Korea ) , Kim, Jeong-Dae ( College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, South Korea ) , Kim, Jeong-Dae ( College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, South Korea ) , Kim, Sung-Sam ( Aquafeed R&D Center of CJ Cheil Jedang Feed Semarang, Batang 51281, Indonesia )



Article Info

Publish Date
03 Aug 2018

Abstract

We investigated the effects of feeding rate on the growth, blood components, and histology of the growing olive flounder (Paralichthys olivaceus). We determined the optimum feeding rate (initial fish mean weight = 525.3 ± 7.12 g) at the optimum water temperature. Two replicate groups of fish were fed a commercial diet at rates of 0%, 0.2%, 0.4%, 0.6%, and 0.8% (i.e., to satiation) of body weight (BW) per day. The feeding trial was conducted using a flow-through system, with ten of 1.2-metric-ton aquaria receiving filtered seawater between 20.5 and 24.5°C, for 3 weeks. Weight gain (WG) and specific growth rate (SGR) were significantly greater in fish fed with satiation at 0.8% BW/day compared to fish fed at 0.2% BW/day, and with unfed fish. These parameters were negative, and significantly lower, in the starved fish compared to the fish fed the experimental diet, for all feeding rates. There were no significant differences in WG and SGR among fish fed at 0.2%, 0.4%, and 0.6% BW/day, and among those fed at 0.4%, 0.6% and 0.8% of BW/day. The histological changes in tissues were not significant in the hepatopancreas, kidney, or anterior intestine of fish fed at 0%, 0.4%, and 0.8% of BW/day. Broken-line regression analysis based on weight gain demonstrated that the optimum feeding rate for an olive flounder weighing 525 g was 0.70% BW/day at optimum water temperature.


Copyrights © 2018






Download : Full PDF (617.339 KB)
Original Source : http://aquasiana.org/index.php/ai/article/view/122
Google Scholar : Check in googleschoolar

Journal Info

Abbrev

ai

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science Chemistry Other

Description

Aquacultura Indonesiana (AI) is publishes original and peer-reviewed, English language papers concerned with culture of aquatic plants and animals. Subjects approriate for this journal would include, but not necessarily be limited to, nutrition, diseases, genetics and breeding, physiology, ...