Digestive enzyme activities in larvae of sharpsnout seabream (Diplodus puntazzo)

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“…This is the typical alkaline protease, trypsin and chymotrypsin, developmental profile during the early ontogeny for cultured Sparid larvae. Similar ontogenetic patterns were recorded for D. dentex and also P. erythrinus (Suzer et al, 2006b), P. pagrus (Suzer et al, 2007a) and D. puntazzo (Suzer et al, 2007b) larvae under culture conditions. The considerable rate (50%<) of mortality occurred at the beginning of the metamorphosis (20 DAH) related with organogenesis and also at the beginning of the co-feeding period (30 DAH) due to possibility of refusing of microdiet with live food.…”

“…A quite similar developmental profile for lipolytic activity were reported in different cultured species such as, Solea senegalensis (Martínez et al, 1999), S. ocellatus (Lazo et al, 2000), D. sargus (Cara et al, 2003), P. erythrinus (Suzer et al, 2006b), and yellowtail kingfish, Seriola lalandi (Chen et al, 2006) larvae. Similar enzymatic profile in lipase activities were found in larvae of cultured species such as Solea senegalensis (Martínez et al, 1999), S. ocellatus (Lazo et al, 2000), D. sargus (Cara et al, 2003), P. erythrinus (Suzer et al, 2006b), , S. lalandi (Chen et al, 2006), P. pagrus (Suzer et al, 2007a), and D. puntazzo (Suzer et al, 2007b). In spite of Gisbert et al (2009) reported that lipase was detected at hatching and progressively increased with larval growth of D. dentex larvae, a contrast profile were noted after co-feeding period 30 DAH related with administration of microdiet.…”

“…Also, Gisbert et al (2009) recorded similar finding as first detection concurrentliy with hatching for trypsin in the same species . For instance for the other cultured species, similar detection and developmental pattern was recorded in S. aurata at 3 DAH (Moyano et al, 1996), P. auriga at 3 DAH (Moyano et al, 2005), P. pagrus at 3 DAH (Suzer et al, 2007a), P. eryhtrinus at 3 DAH (Suzer et al, 2006a), D. puntazzo at 3 DAH (Suzer et al, 2007b) and meagre Argyrosomus regius at 3 DAH (Suzer et al, 2013). On the other hand, as reported for both D. dentex and other cultured Sparids such as S. aurata, D. sargus, D. puntazzo, and P. erythrinus, trypsin specific activity was relatively higher during early stages and then sharply and/or slightly decline was observed about after 20 DAH correlated with alteration of feeding regime, development of gastric glands before acidic digestion in stomach (Moyano et al, 1996;Cara et al, 2003;Suzer et al, 2006Suzer et al, , 2007aGisbert et al, 2009).…”

“…Obtained results from our study supported this phenomenon which pepsin activity was firstly detected at 28 DAH and the exponentially increased until 35 DAH. Moreover, in other marine cultured fish, formation of functional stomach and pepsin activity was firstly assayed 15 DAH in A. regius (Suzer et al, 2013), 24 DAH in D. labrax (Zambonino Infante andCahu, 1994), 25 DAH in P. erythrinus (Suzer et al, 2006b), 28 DAH in P. pagrus (Suzer et al, 2007a), 30 DAH in P. auriga (Moyano et al, 2005), 32 DAH in D. puntazzo (Suzer et al, 2007b), and 40 DAH in S. aurata (Moyano et al, 1996).…”

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“…The red porgy, Pagrus pagrus, is one of the most attractive candidate species for diversification of aquaculture (Mihelakakis et al 2001;Conides and Glamuzina, 2001;Suzer et al 2007). It is a species intensively farmed in the Mediterranean (Basurco and Abellan 1999) and has been targeted because of its fast growth under intensive farming conditions (Divanach et al 1993;Stephanou et al 1995;Kentouri et al 1995).…”