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http://krishi.icar.gov.in/jspui/handle/123456789/72913
Title: | Protein requirement of juvenile striped catfish, Pangasianodon hypophthalmus |
Other Titles: | Not Available |
Authors: | Jayant M, Muralidhar AP, Sahu NP, Jain KK, Pal AK, Srivastava PP |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR: Central Institute of Fisheries Education |
Published/ Complete Date: | 2018-01-01 |
Project Code: | Not Available |
Keywords: | maltose, satiety, carboxylic ester hydrolases, regression analysis, carcass composition, proteinases, fish, enzyme activity, juveniles |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | A trial was conducted to determine the dietary protein requirement for growth of juvenile striped catfish (Pangasianodon hypophthalmus). Iso-energetic semi-purified diets (~ 19.78 MJ kg⁻¹) with six levels of protein 20% (T₁), 25% (T₂), 30% (T₃), 35% (T₄), 40% (T₅), and 45% (T₆) were fed to triplicate groups of fish (initial mean weight 4.27 to 4.57 g) to satiation twice daily for 60 days. Growth, feed conversion, protein utilization, intestinal digestive enzyme activities, and body composition were measured as response variables. Best growth (P < 0.05) was observed in fish fed with 40% dietary protein, and second order polynomial regression analysis (y = − 0.0011x2 + 0.0816x + 0.0642; R ² = 0.9241; dietary protein levels as independent variable and specific growth rate as dependent variable) gave a protein requirement for growth of 37.1%. A minimum feed conversion ratio (FCR = 1.38) was found in fish fed with 35% dietary protein. Apparent net protein utilization (ANPU) was found to decrease (from 39.57 to 16.15%), with increasing dietary protein levels (P < 0.05). Protease and amylase activities were found to be in opposition to each other, with increasing dietary protein levels. The highest protease (0.59 μmol of tyrosine released min⁻¹ mg⁻¹ protein) and lowest amylase activities (7.99 μmol of maltose released min⁻¹ mg⁻¹ protein) were observed in fish fed with 40% dietary protein (P < 0.05); whereas lipase activity (P > 0.05) was found to be independent o |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Aquaculture International |
Journal Type: | International |
NAAS Rating: | 7.1 |
Impact Factor: | 2.235 |
Volume No.: | 26(1) |
Page Number: | 375-389 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/72913 |
Appears in Collections: | FS-CIFE-Publication |
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