Apparent nutrient digestibility of carbohydrate (corn) in Cirrhinus mrigala under the influence of chromium chloride hexahydrate.

Farkhanda Asad,Sidra Javaid,Samina Qamer,Asma Ashraf,Zunaira Shaheen,Ayesha Nisar,Azhar Rafique

doi:10.1590/1519-6984.214176

Abstract

A feeding trial was carried out to assess the effect of dietary chromium supplementation on apparent nutrient digestibility coefficient (%) of gelatinized and non-gelatinized corn in Cirrhinus mrigala fingerlings for 90 days. Using various levels of chromium chloride hexahydrate six test diets designated as T1 (G/0.0 Cr2Cl3.6H2O mg Kg-1), T2 (NG/0.0 Cr2Cl3.6H2O mg Kg-1), T3 (G/0.2 Cr2Cl3.6H2O mg Kg-1), T4 (NG/0.2 Cr2Cl3.6H2O mg Kg-1), T5 (G/0.4 Cr2Cl3.6H2O mg Kg-1) and T6 (NG/0.4 Cr2Cl3.6H2O mg Kg-1) were prepared. Results showed highest apparent digestibility coefficient (ADC) of nutrients dry matter, crude lipid and gross energy in test diet T5 that was gelatinized and supplemented with chromium 0.4 mg/Kg while, for crude protein higher value of nutrient digestibility was recorded in T3 test diet (G/0.2 Cr2Cl3.6H2O mg/Kg). It was concluded that chromium supplementation with gelatinized corn in fish (Cirrhinus mrigala) diet can improve the nutrients digestibility more efficiently.

Highlights

In many parts of the world aquatic food products are essential component of human diet and especially are source of protein
Results showed highest apparent digestibility coefficient (ADC) of nutrients dry matter, crude lipid and gross energy in test diet T5 that was gelatinized and supplemented with chromium 0.4 mg/Kg while, for crude protein higher value of nutrient digestibility was recorded in T3 test diet (G/0.2 Cr2Cl3.6H2O mg/Kg)
The digestibility of nutrients is not defined accurately in numerous commercial feed stuffs and it is revealed that feed performance and digestibility can be improved with the use of extrusion technology.In this research work we compared the carbohydrate digestibility of two types of corn (G & NG) at different levels of chromium chloride hexahydrate in fish feed

Summary

Introduction

In many parts of the world aquatic food products are essential component of human diet and especially are source of protein. Intensive and semi-intensive fish cultures are gaining more importance for production of low cost diet (Khan et al, 2015). Fish meal is a rich source of protein and containing essential amino acids, low carbohydrates content and fatty acids (Altan and Korkut, 2011). It is most expensive and not a reliable source. Cirrhinus mrigala is commonly called mori, white carp and mrigal It is one of Indian major carps developed mostly in Southeast Asian nations.

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