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Information Journal Paper

Title

CHANGES OF DIGESTIVE ENZYMES ACTIVITY IN COMMON CARP (CYPRINUS CARPIO) DURING LARVAL ONTOGENY

Pages

  320-334

Abstract

 This study was aimed to gain knowledge on the ONTOGENY of DIGESTIVE ENZYMES in COMMON CARP larvae at the governmental Warm water Fish Aquaculture Center of Shahid Rajaee in Sari, Mazandaran, Iran. The ontogenetic development of pancreatic (trypsin, chymotrypsin, lipase and a-amylase) and intestinal (alkaline phosphatase and aminopeptidase-N) enzymes were assessed in COMMON CARP larvae from first feeding (3 days post hatching) to 33 days post hatching (dph). The larvae started to feed on rotifers at day 3 to day 7. Feeding on a commercial diet was started from day-8 onwards. Specific trypsin and chymotrypsin activities feed with rotifer were 0.011 U/mg protein and 0.003 U/mg protein at day 7, respectively; then the specific activities feed with dry food reached a maximum level at 33 dph (0.028 U/mg protein and 0.028 U/mg protein, respectively) (P<0.05) compared to live prey. The elevated alkaline proteases activity can be related to adaptation of larvae to digest protein content in the food. Specific lipase activity was 0.0006 U/mg protein at 7 dph; then the activity feed with dry food reached a maximum level at 15 dph (0.0011 U/mg protein) (P<0.05) compared to live prey. Specific α-amylase activity feed with rotifer was 85.86 U/mg protein on the 7 dph; consequently, its specific activity reached a maximum level at 15 dph (128.77 U/mg protein) (P<0.05). Specific alkaline phosphatase and aminopeptidase N activities feed with rotifer were 6 U/mg protein and 0.0106 U/mg protein at day 7, respectively; then the specific activities feed with dry food reached a maximum level at 33 dph (28.66 U/mg protein and 0.58 U/mg protein, respectively) (P<0.05) compared to live prey.

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    APA: Copy

    FARHOUDI, A., ABEDIAN KENARI, A.M., NAZARI, R.M., & MAKHDOOMI, CH.. (2013). CHANGES OF DIGESTIVE ENZYMES ACTIVITY IN COMMON CARP (CYPRINUS CARPIO) DURING LARVAL ONTOGENY. IRANIAN JOURNAL OF FISHERIES SCIENCES, 12(2), 320-334. SID. https://sid.ir/paper/630149/en

    Vancouver: Copy

    FARHOUDI A., ABEDIAN KENARI A.M., NAZARI R.M., MAKHDOOMI CH.. CHANGES OF DIGESTIVE ENZYMES ACTIVITY IN COMMON CARP (CYPRINUS CARPIO) DURING LARVAL ONTOGENY. IRANIAN JOURNAL OF FISHERIES SCIENCES[Internet]. 2013;12(2):320-334. Available from: https://sid.ir/paper/630149/en

    IEEE: Copy

    A. FARHOUDI, A.M. ABEDIAN KENARI, R.M. NAZARI, and CH. MAKHDOOMI, “CHANGES OF DIGESTIVE ENZYMES ACTIVITY IN COMMON CARP (CYPRINUS CARPIO) DURING LARVAL ONTOGENY,” IRANIAN JOURNAL OF FISHERIES SCIENCES, vol. 12, no. 2, pp. 320–334, 2013, [Online]. Available: https://sid.ir/paper/630149/en

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