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Feeding frequency influences the growth performance of yellowfin seabream (Acanthopagrus arabicus) in cage culture
N. Ahmad, P.J.A. Siddiqui *, K. Mir Khan, A. Ali, F. Khokhar, S.A. Amir
Center of Excellence in Marine Biology, University of Karachi, Karachi 75270, Pakistan , jamal.siddiqui@yahoo.com
Abstract:   (1115 Views)
This study examined the growth response of yellowfin seabream, Acanthopagrus arabicus, reared in floating net cage fed at variable daily feeding frequencies. Thirty healthy fish (49.7±0.3 g initial weight) were stocked in each of the 12 net cages (1.5×1.5×1.5m). Three cages in each group were assigned to four different feeding frequency i.e., two, three, four and six times/day designated as FF1, FF2, FF3 and FF4, respectively. Semi-purified diet (42% protein) was used to feed at seven percent body weight (%BW) day-1 for a total period of forty five days. The fish length and weight were measured fortnightly and the feeding rate was adjusted according to the new weight. At the end of the trial all fish remained healthy and active with survivals recorded 95-100%. The final weight, average daily weight gain (ADG) and specific growth rate (SGR) values were significantly higher for fish in groups FF3 and FF4 compared to FF1 and FF2. The SGR was the highest in groups FF3 (1.30±0.02) and FF4 (1.3±0.04) significantly different from FF1 (1.09±0.01) and FF2 (0.99±0.02) groups. Whole body proximate composition (protein, ash, moisture and lipid) remained similar in all the treatment groups. It may be concluded that yellowfin seabream, A. arabicus, may be grown in floating cages effectively by feeding four times day-1 to achieve significantly better growth.
Keywords: Fish juveniles, Sea bream, Feeding trial, Net cages, Growth rate.
Full-Text [PDF 472 kb]   (451 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2017/04/13 | Accepted: 2018/05/19 | Published: 2020/05/1
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Ahmad N, Siddiqui P, Mir Khan K, Ali A, Khokhar F, Amir S. Feeding frequency influences the growth performance of yellowfin seabream (Acanthopagrus arabicus) in cage culture. IJFS. 2020; 19 (3) :1073-1082
URL: http://jifro.ir/article-1-2678-en.html

Volume 19, Issue 3 (2020) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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