Effect of Hemp Seed Oil and Hemp Seed on Proximate Composition, Growth Performance, and Growth Gene of Freshwater Fish

Beneficial Impact of Hemp Supplementation on Cirrhinus mrigala

Abstract

The present study is conducted to analyze the nutritional effect of hemp seed oil and hemp seed supplemented in feed on proximate composition, growth performance and Insulin-like growth Factor-I of Mrigal (Cirrhinus mrigala) for fifty days. For this purpose, fingerlings of Mrigal are maintained on hemp supplemented in diet of hemp seed oil (HO) at three concentration (1, 2 and 3%), and hemp seed (HS) at three concentration (5, 10 and 15%) for fifty days. At end of experimental trail moisture contents are significantly higher in control, ash contents are in hemp seed (HS15 %,) crude protein are in hemp seed (HS10%) and hemp seed (HS15%), ether extract in hemp seed (HS15%) and energy content in (HO3%), and (HS15%) in comparison to control and others hemp feeding groups. Similarly, hemp supplementation also showed positive effect on final body weight (FBW), percentage weight gain (PWG), specific growth rate (SGR) and feed conversion efficiency (FCR), on fingerlings of Mrigal. Insulin-like Growth factor-I (IGF-I) in liver and muscle tissues of fingerlings of Mrigal resulted significantly higher in all hemp treated groups in comparison to control. Hemp seed showed better effect in comparison to hemp seed oil, however, percent inclusion of hemp seed (HS15%) had shown a better result in comparison to control and other percentage inclusion of hemp seed and hemp seed oil. Hempseed products could be recommended as a feed ingredient for fish for enhancing the nutritional values of fish, which in turn can have a good impact on consumer health.