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Improvement in the growth status and carbohydrate utilization of Labeo rohita (Hamilton, 1822) fingerlings with dietary supplementation of chromium picolinate

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Title Improvement in the growth status and carbohydrate utilization of Labeo rohita (Hamilton, 1822) fingerlings with dietary supplementation of chromium picolinate
Fish Physiology and Biochemistry
 
Creator Abhay Kumar Giri &
Narottam Prasad Sahu
 
Subject Dietary chromium . Protein-sparing . Carbohydrate metabolism . Growth . Stress. Labeo rohita
 
Description Not Available
A 60-day feeding experiment was conducted to evaluate the effects of dietary chromium (Cr) on carbohydrate utilization and growth performance of Labeo rohita fingerlings. Fishes were fed with four high carbohydrate (53%), isonitrogenous (crude protein 35%), and isocaloric (415 Kcal, 100 gm?1) experimental diets containing different levels of dietary chromium picolinate (Cr-Pic) viz.0, 400, 800, and 1200 ?g kg?1 diet. Weight gain (WG%), specific growth rate (SGR), feed efficiency ratio (FER), and protein efficiency ratio (PER) were significantly increased at 800 ?g kg?1 diet chromium supplementation (P < 0.05). Cr-Pic supplementation (800 ?g kg?1) also significantly (P < 0.05) enhanced the protein: DNA ratio in muscle, while DNA: RNA and DNA: tissue ratios were significantly (P < 0.05) decreased indicating higher growth. Significantly higher amylase, protease, and lipase activities were recorded in 800 ?g Cr-Pic kg?1 diet fed fishes (P < 0.05), while any of the experimental groups showing no significant (P > 0.05) change in hexokinase activity, indicating normal glycolysis in all. Furthermore, significant (P < 0.05) decrease of glucose-6-phospatase activity in 800 ?g Cr-Pic kg?1 diet fed group, showcasing an evidence for protein-sparing action with Cr-Pic supplementation. Significantly (P < 0.05) higher serum insulin and liver glycogen in 800 ?g Cr-Pic kg?1 diet fed fishes denote an improvement in carbohydrate metabolism. However, significantly (P < 0.05) higher ATPase and SOD activities were also observed when chromium supplementation was more than 800 ?g kg?1 diet, indicating stress at higher level. The present study indicates that growth and carbohydrate utilization can significantly (P < 0.05) be improved by feeding the L. rohita fingerlings with Cr-Pic (800 ?g kg?1 diet) supplemented diet in laboratory condition.
 
Date 2021-07-26T04:41:23Z
2021-07-26T04:41:23Z
2021-2-9
 
Type Research Paper
 
Identifier Not Available
0920-1742
http://krishi.icar.gov.in/jspui/handle/123456789/50083
 
Language English
 
Publisher Not Available