In order to evaluate the effect of taro (Colocasia esculenta L.) Schott and Lemon grass (Cymbopogon citratus) in Nile tilapia diets. Five isonitrogenous and isocaloric experimental diets were used in this study containing both animal and plant proteins sources to provide 30% protein and 4.49 kcal/g. Diets were formulated from commercial ingrdeients and used to feed triplicate groups of fish (14.50 ± 0.3g) to apparent satiation for 10 weeks. Treatments were the control, and treatments were diets supplemented with taro leaves extract and Lemon grass extract at the rate of 0.2 and 0.4% kg−1 . The experimental treatments on diet supplemented with Lemon grass extract at the level of 0.2% kg−1 diet on the hematological parameters of Oreochromis niloticus was Hemoglobin 7.49, Red blood cells 2.73, Hematocrit 23.14 White blood cells 28.28, which is the best compared with Taro extract and control group. Results of the study showed a good overall growth performances and status of experimental fish.
This article describes the bioactive phenolic compounds of ethanolic extracts of taro leaves (Colocasia esculenta) (TLE) and lemon grass (Cymbopogon citratus) (LGE) by using HPLC analysis. Phenolic compounds obtained from the extracts of the two plants contain Rutin as main compound with rate of 65.62 and 34.24 % , respectively