Open AccessA comparison of the effect of organic acids and dicalcium phosphate supplementation on phosphorus bioavailability, growth performance and digestive enzyme activities of Labeo rohita fingerlings
Author(s) -
Javid Iqra,
Fatima Mahroze,
Shah Syed Zakir Hussain,
Afzal Muhammad
Publication year - 2021
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.13179
Subject(s) - labeo , bioavailability , biology , phosphorus , digestive enzyme , phosphate , enzyme , biochemistry , fish <actinopterygii> , fishery , chemistry , pharmacology , organic chemistry , lipase
Abstract The effect of organic acids (OA) and dicalcium phosphate (P i ) supplementation in the feed of Labeo rohita fingerlings was studied by formulating seven practical diets, designed as D1 with no feed additives {dicalcium phosphorus (P i) and organic acid (OA) blend} while, D2, D3, D4 and D5 were supplemented with P i at the graded levels of 5, 10, 15 and 20 g/kg, respectively, whereas D6 and D7 contained blend of OA at 15 and 30 g/kg, respectively. The diet supplemented with OA blend exhibited increase ( p < .05) in growth of L. rohita fingerlings compared with the diet supplemented with P i . The OA supplementation at both levels showed significant improvement in nutrients digestibility and minerals absorption in fingerlings. Moreover, in case of muscle proximate composition, crude fat (CF) and crude protein (CP) were increased ( p < .05) with the inclusion of OA blend in the diet while crude ash (CA) was improved by P i supplementation. Additionally, digestive enzyme activities were not affected ( p ˃ .05) by OA blend supplementation while increased activities were observed in the fingerlings fed with P i diet. Consequently, supplementation of OA blend in the diet improved the growth performance and nutrient status while P i enhanced digestive enzyme activities of L. rohita fingerlings.