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Activities of digestive enzymes during ontogenic development of golden mahseer (Tor putitora) larvae

Indian Agricultural Research Journals

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Title Activities of digestive enzymes during ontogenic development of golden mahseer (Tor putitora) larvae
 
Creator AKHTAR, M S
SHARMA, DEBAJIT
PANDEY, N N
 
Subject lkaline phosphatase, Digestive enzymes, Golden mahseer, Ontogeny
 
Description t investigation was undertaken to study the activities of digestive enzymes during ontogenic development ofgolden mahseer. Different age groups (0 DAH, (0 day after hatching), 3 DAH, 7 DAH, 15 DAH, 21 DAH, 30 DAH and45 DAH) of mahseer larvae were fed macerated goat liver twice daily. Samples of mahseer larvae of all studied agegroups were collected and analyzed for activities of digestive enzymes namely amylase, protease, trypsin, lipase andalkaline phosphatase. Activities of trypsin and lipase showed similar trend expect for the first 7 DAH. Lipase activityshowed a linear increase up to 7 DAH, while trypsin activity showed no significant change during this time. Activitiesof both lipase and trypsin sharply decreased on 15 DAH followed by a significant abrupt increase to a maximum on 21DAH. Protease activity in mahseer larvae was observed even on 0 DAH and this activity was consistent till 3 DAH andthen increased followed by a decrease. Minimum amylase activity was on 0 and 3 DAH and maximum on 7 DAH.Minimum activity of alkaline phosphatase was on 0 DAH and activity remained lower till 7 DAH followed by a sharpincrease till 30 DAH and then decreased on 45 DAH. Activities of different digestive enzymes indicated that mahseerlarvae are able to digest protein, lipid and carbohydrates at an early stage. In this study, although a sharp increaseoccurred at the start of exogenous feeding, specific activity of most of digestive enzymes exhibited fluctuations.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2013-05-10
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
—
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/29762
 
Source The Indian Journal of Animal Sciences; Vol 83, No 5 (2013)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/29762/13400
 
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