Compensatory growth of Sobaity ( Sparidentex hasta ) and yellowfin seabreams ( Acanthopagrus latus ) relative to feeding rate during nursery phase

Abstract

Sobaity (Sparidentex hasta) and yellowfin (Acanthopagrus latus) seabreams are commercially important carnivorous fish species in the Persian Gulf and Oman sea regions. These sparids are considered as potential candidates for developing marine aquaculture due to their high economic value, great adaptability to culture conditions and domestication and easy propagation in captivity (Mozanzadeh, Marammazi, Yaghoubi, Agh, Pagheh, et al., 2017). As a matter of fact, the commercial success in aquaculture operation of any candidate aquatic species will partially depend on the determination of its optimum feed formulation and feeding schedules. Therefore, economic

Effects of a single-phase fasting period and subsequent re-feeding on compensatory growth, digestive enzyme activities, and antioxidant capacity of sobaity (Sparidentex hasta) and yellowfin seabream (Acanthopagrus latus)

“…It should be mentioned that RFI in S. hasta in the T3 group was lower than the other groups, mainly due to cannibalism. In agreement with the results of the present study hyperphagia demonstrated in S. hasta and A. latus fingerlings that experienced feed restriction for 30 days then refed at satiation level for another 30 days (Mozanzadeh et al, 2020). The hyperphagic behavior in response to FA and RF strategies also demonstrated in other Sparids such as S. aurata (Yilmaz and Eroldoğan, 2011), Dentex dentex (Pérez-Jiménez et al, 2012), A. schlegelii (Oh et al, 2013).…”

“…In contrast, A. latus juveniles subjected to a short-term FA and RE periods two days of FA that followed by 8 days of RF for 80 days showed full CGR. In addition, Mozanzadeh et al (2020) reported that A. latus fingerlings subjected to 30 days of moderate feeding restriction (feeding rate at 6-8% of BWi) demonstrated full CGR following 30 days of RF at satiation level. But A. latus subjected to a severe feed restriction (feeding rate at 2-4% of BWi) for 30 days showed partial CGR (Mozanzadeh et al, 2020).…”

“…In addition, Mozanzadeh et al (2020) reported that A. latus fingerlings subjected to 30 days of moderate feeding restriction (feeding rate at 6-8% of BWi) demonstrated full CGR following 30 days of RF at satiation level. But A. latus subjected to a severe feed restriction (feeding rate at 2-4% of BWi) for 30 days showed partial CGR (Mozanzadeh et al, 2020). These findings suggested that A. latus juveniles can adapt to short-term cyclical FA and RE strategies and moderate feed restriction rather than severe feed deprivation periods.…”

“…Among the different sparid species in the Persian Gulf and Oman sea regions, yellowfin (Acanthopagrus latus) and sobaity seabream (Sparidentex hasta) are considered potential candidates for developing mariculture activities in Iran. There was a well knowledge regarding the requirements of macronutrients in these fish species (Mozanzadeh et al, 2017a); however, more studies should be conducted regarding their feeding management is scarce (Mozanzadeh et al, 2017b;Mozanzadeh et al, 2020). Thus, the current research was aimed to evaluate the effects of a single-phase FA and subsequent RE on CGR, antioxidative capacity, and digestive enzymes in A. latus and S. hasta juveniles.…”

Compensatory growth, antioxidant capacity and digestive enzyme activities of Sobaity ( Sparidentex hasta ) and yellowfin seabreams ( Acanthopagrus latus ) subjected to ration restriction

“…For example, in S . hasta , the CGR of fish during 6 weeks of satiation feeding was attributed to remarkable increase in SGR and improvement of FCR as previously reported by Mozanzadeh, Marammazi, Yaghoubi, Yavari, et al (2017), Mozanzadeh et al (2020). However, in A .…”