AU - Farhoudi, A. AU - Abedian Kenari, A. M. AU - Nazari, R. M. AU - Makhdoomi, C. H. TI - Changes of digestive enzymes activity in common carp (Cyprinus carpio) during larval ontogeny PT - JOURNAL ARTICLE TA - IFRO JN - IFRO VO - 12 VI - 2 IP - 2 4099 - http://jifro.ir/article-1-992-en.html 4100 - http://jifro.ir/article-1-992-en.pdf SO - IFRO 2 AB  - 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 α-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 CP - IRAN IN - LG - eng PB - IFRO PG - 320 PT - Orginal research papers YR - 2013