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Developmental changes of digestive enzymes in Persian sturgeon (Acipenser persicus) during larval ontogeny

Identifieur interne : 000085 ( PascalFrancis/Corpus ); précédent : 000084; suivant : 000086

Developmental changes of digestive enzymes in Persian sturgeon (Acipenser persicus) during larval ontogeny

Auteurs : SEYEDEH SEDIGHEH BABAEI ; ABDOLMOHAMMAD ABEDIAN KENARI ; Rajabmohammad Nazari ; Enric Gisbert

Source :

RBID : Pascal:11-0319792

Descripteurs français

English descriptors

Abstract

The development of digestive enzymes from the stomach (pepsin), pancreas (trypsin, chymotrypsin, α-amylase and lipase) and intestine (alkaline phosphatase) was studied in Persian sturgeon (Acipenserpersicus) from hatching to the juvenile stage at 40 days post hatching (dph). Larvae were obtained from artificial propagation of one male and one female and transferred to larval culture tanks where, after yolk sac absorption (9 dph at 17-18 °C), they were fed with Artemia urmiana and Daphnia sp. The assessment of the activity of digestive enzymes showed that at the onset of exogenous feeding, gastric glands were already functional as indicated by the increase in pepsin specific activity. In contrast, alkaline proteases like trypsin and chymotrypsin decreased their specific activity after the onset of exogenous feeding, indicating the importance of these types of enzymes in the cleavage of yolk proteins during the endogenous feeding phase and the replacement of the larval alkaline-type digestion by a juvenile-type acid digestion. After the first feeding, amylase and lipase specific activities increased. Such increments in the activity of amylase might be genetically programmed to better digest carbohydrates in diets with the goal of sparing proteins during the larval stage, whereas the increase in lipase was related to changes in the lipid content of live prey and the progressive maturation of the pancreatic function during larval development. Changes in enzyme activities from the stomach and pancreas were coupled with that in the intestine (brush border membrane), where the specific activity of alkaline phosphatase progressively increased until 19-24 dph and remained constant thereafter, indicated the maturation of the intestine and the achievement of a juvenile-like mode of digestion. Considering these data on the digestive enzymes from the pancreas, stomach and intestine, Persian sturgeon larvae might be weaned around 19-24 dph, as larvae have achieved the complete maturation of their digestive functions by this date. This developmental process, and particularly for the digestive functions, can be considered as a reference to evaluate the effect of a formulated micro diets feeding on larvae.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A02 01      @0 AQCLAL
A03   1    @0 Aquaculture : (Amst.)
A05       @2 318
A06       @2 1-2
A08 01  1  ENG  @1 Developmental changes of digestive enzymes in Persian sturgeon (Acipenser persicus) during larval ontogeny
A11 01  1    @1 SEYEDEH SEDIGHEH BABAEI
A11 02  1    @1 ABDOLMOHAMMAD ABEDIAN KENARI
A11 03  1    @1 NAZARI (Rajabmohammad)
A11 04  1    @1 GISBERT (Enric)
A14 01      @1 Fisheries Department, Tarbiat Modares University, Noor, P.O. Box 64414-356 @2 Noor, Mazandaran @3 IRN @Z 1 aut. @Z 2 aut.
A14 02      @1 Shahid Rajaee Sturgeon Hatchery Center, Sari, P.O. Box 833 @2 Sari, Mazandaran @3 IRN @Z 3 aut.
A14 03      @1 IRTA, Centre de Sant Carles de la Ràpita, Unitat de Cultius Experimentals, Crta. de Poblenou km 5.5, 43450 Sant Carles de la Ràpita Tarragona @3 ESP @Z 4 aut.
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A43 01      @1 INIST @2 15964 @5 354000190425070220
A44       @0 0000 @1 © 2011 INIST-CNRS. All rights reserved.
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A47 01  1    @0 11-0319792
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C01 01    ENG  @0 The development of digestive enzymes from the stomach (pepsin), pancreas (trypsin, chymotrypsin, α-amylase and lipase) and intestine (alkaline phosphatase) was studied in Persian sturgeon (Acipenserpersicus) from hatching to the juvenile stage at 40 days post hatching (dph). Larvae were obtained from artificial propagation of one male and one female and transferred to larval culture tanks where, after yolk sac absorption (9 dph at 17-18 °C), they were fed with Artemia urmiana and Daphnia sp. The assessment of the activity of digestive enzymes showed that at the onset of exogenous feeding, gastric glands were already functional as indicated by the increase in pepsin specific activity. In contrast, alkaline proteases like trypsin and chymotrypsin decreased their specific activity after the onset of exogenous feeding, indicating the importance of these types of enzymes in the cleavage of yolk proteins during the endogenous feeding phase and the replacement of the larval alkaline-type digestion by a juvenile-type acid digestion. After the first feeding, amylase and lipase specific activities increased. Such increments in the activity of amylase might be genetically programmed to better digest carbohydrates in diets with the goal of sparing proteins during the larval stage, whereas the increase in lipase was related to changes in the lipid content of live prey and the progressive maturation of the pancreatic function during larval development. Changes in enzyme activities from the stomach and pancreas were coupled with that in the intestine (brush border membrane), where the specific activity of alkaline phosphatase progressively increased until 19-24 dph and remained constant thereafter, indicated the maturation of the intestine and the achievement of a juvenile-like mode of digestion. Considering these data on the digestive enzymes from the pancreas, stomach and intestine, Persian sturgeon larvae might be weaned around 19-24 dph, as larvae have achieved the complete maturation of their digestive functions by this date. This developmental process, and particularly for the digestive functions, can be considered as a reference to evaluate the effect of a formulated micro diets feeding on larvae.
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Format Inist (serveur)

NO : PASCAL 11-0319792 INIST
ET : Developmental changes of digestive enzymes in Persian sturgeon (Acipenser persicus) during larval ontogeny
AU : SEYEDEH SEDIGHEH BABAEI; ABDOLMOHAMMAD ABEDIAN KENARI; NAZARI (Rajabmohammad); GISBERT (Enric)
AF : Fisheries Department, Tarbiat Modares University, Noor, P.O. Box 64414-356/Noor, Mazandaran/Iran (1 aut., 2 aut.); Shahid Rajaee Sturgeon Hatchery Center, Sari, P.O. Box 833/Sari, Mazandaran/Iran (3 aut.); IRTA, Centre de Sant Carles de la Ràpita, Unitat de Cultius Experimentals, Crta. de Poblenou km 5.5, 43450 Sant Carles de la Ràpita Tarragona/Espagne (4 aut.)
DT : Publication en série; Niveau analytique
SO : Aquaculture : (Amsterdam); ISSN 0044-8486; Coden AQCLAL; Pays-Bas; Da. 2011; Vol. 318; No. 1-2; Pp. 138-144; Bibl. 1 p.
LA : Anglais
EA : The development of digestive enzymes from the stomach (pepsin), pancreas (trypsin, chymotrypsin, α-amylase and lipase) and intestine (alkaline phosphatase) was studied in Persian sturgeon (Acipenserpersicus) from hatching to the juvenile stage at 40 days post hatching (dph). Larvae were obtained from artificial propagation of one male and one female and transferred to larval culture tanks where, after yolk sac absorption (9 dph at 17-18 °C), they were fed with Artemia urmiana and Daphnia sp. The assessment of the activity of digestive enzymes showed that at the onset of exogenous feeding, gastric glands were already functional as indicated by the increase in pepsin specific activity. In contrast, alkaline proteases like trypsin and chymotrypsin decreased their specific activity after the onset of exogenous feeding, indicating the importance of these types of enzymes in the cleavage of yolk proteins during the endogenous feeding phase and the replacement of the larval alkaline-type digestion by a juvenile-type acid digestion. After the first feeding, amylase and lipase specific activities increased. Such increments in the activity of amylase might be genetically programmed to better digest carbohydrates in diets with the goal of sparing proteins during the larval stage, whereas the increase in lipase was related to changes in the lipid content of live prey and the progressive maturation of the pancreatic function during larval development. Changes in enzyme activities from the stomach and pancreas were coupled with that in the intestine (brush border membrane), where the specific activity of alkaline phosphatase progressively increased until 19-24 dph and remained constant thereafter, indicated the maturation of the intestine and the achievement of a juvenile-like mode of digestion. Considering these data on the digestive enzymes from the pancreas, stomach and intestine, Persian sturgeon larvae might be weaned around 19-24 dph, as larvae have achieved the complete maturation of their digestive functions by this date. This developmental process, and particularly for the digestive functions, can be considered as a reference to evaluate the effect of a formulated micro diets feeding on larvae.
CC : 002A36B01; 002A15B
FD : Enzyme; Larve; Développement; Croissance; Sevrage; Aquiculture; Acipenser
FG : Pisces; Vertebrata; Acipenseridae
ED : Enzyme; Larva; Development; Growth; Weaning; Aquaculture
EG : Pisces; Vertebrata
SD : Enzima; Larva; Desarrollo; Crecimiento; Destete; Acuicultura
LO : INIST-15964.354000190425070220
ID : 11-0319792

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Pascal:11-0319792

Le document en format XML

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<s5>04</s5>
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<s5>05</s5>
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<s5>06</s5>
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<s0>Acuicultura</s0>
<s5>06</s5>
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<s0>Acipenser</s0>
<s4>INC</s4>
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<s0>Pisces</s0>
<s2>NS</s2>
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</fC07>
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<s0>Pisces</s0>
<s2>NS</s2>
<s5>29</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA">
<s0>Pisces</s0>
<s2>NS</s2>
<s5>29</s5>
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<fC07 i1="02" i2="X" l="FRE">
<s0>Vertebrata</s0>
<s2>NS</s2>
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<fC07 i1="02" i2="X" l="ENG">
<s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="SPA">
<s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE">
<s0>Acipenseridae</s0>
<s4>INC</s4>
<s5>70</s5>
</fC07>
<fN21>
<s1>220</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
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<s1>OTO</s1>
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<server>
<NO>PASCAL 11-0319792 INIST</NO>
<ET>Developmental changes of digestive enzymes in Persian sturgeon (Acipenser persicus) during larval ontogeny</ET>
<AU>SEYEDEH SEDIGHEH BABAEI; ABDOLMOHAMMAD ABEDIAN KENARI; NAZARI (Rajabmohammad); GISBERT (Enric)</AU>
<AF>Fisheries Department, Tarbiat Modares University, Noor, P.O. Box 64414-356/Noor, Mazandaran/Iran (1 aut., 2 aut.); Shahid Rajaee Sturgeon Hatchery Center, Sari, P.O. Box 833/Sari, Mazandaran/Iran (3 aut.); IRTA, Centre de Sant Carles de la Ràpita, Unitat de Cultius Experimentals, Crta. de Poblenou km 5.5, 43450 Sant Carles de la Ràpita Tarragona/Espagne (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Aquaculture : (Amsterdam); ISSN 0044-8486; Coden AQCLAL; Pays-Bas; Da. 2011; Vol. 318; No. 1-2; Pp. 138-144; Bibl. 1 p.</SO>
<LA>Anglais</LA>
<EA>The development of digestive enzymes from the stomach (pepsin), pancreas (trypsin, chymotrypsin, α-amylase and lipase) and intestine (alkaline phosphatase) was studied in Persian sturgeon (Acipenserpersicus) from hatching to the juvenile stage at 40 days post hatching (dph). Larvae were obtained from artificial propagation of one male and one female and transferred to larval culture tanks where, after yolk sac absorption (9 dph at 17-18 °C), they were fed with Artemia urmiana and Daphnia sp. The assessment of the activity of digestive enzymes showed that at the onset of exogenous feeding, gastric glands were already functional as indicated by the increase in pepsin specific activity. In contrast, alkaline proteases like trypsin and chymotrypsin decreased their specific activity after the onset of exogenous feeding, indicating the importance of these types of enzymes in the cleavage of yolk proteins during the endogenous feeding phase and the replacement of the larval alkaline-type digestion by a juvenile-type acid digestion. After the first feeding, amylase and lipase specific activities increased. Such increments in the activity of amylase might be genetically programmed to better digest carbohydrates in diets with the goal of sparing proteins during the larval stage, whereas the increase in lipase was related to changes in the lipid content of live prey and the progressive maturation of the pancreatic function during larval development. Changes in enzyme activities from the stomach and pancreas were coupled with that in the intestine (brush border membrane), where the specific activity of alkaline phosphatase progressively increased until 19-24 dph and remained constant thereafter, indicated the maturation of the intestine and the achievement of a juvenile-like mode of digestion. Considering these data on the digestive enzymes from the pancreas, stomach and intestine, Persian sturgeon larvae might be weaned around 19-24 dph, as larvae have achieved the complete maturation of their digestive functions by this date. This developmental process, and particularly for the digestive functions, can be considered as a reference to evaluate the effect of a formulated micro diets feeding on larvae.</EA>
<CC>002A36B01; 002A15B</CC>
<FD>Enzyme; Larve; Développement; Croissance; Sevrage; Aquiculture; Acipenser</FD>
<FG>Pisces; Vertebrata; Acipenseridae</FG>
<ED>Enzyme; Larva; Development; Growth; Weaning; Aquaculture</ED>
<EG>Pisces; Vertebrata</EG>
<SD>Enzima; Larva; Desarrollo; Crecimiento; Destete; Acuicultura</SD>
<LO>INIST-15964.354000190425070220</LO>
<ID>11-0319792</ID>
</server>
</inist>
</record>

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