The Effect of Some Food Additives on Growth Parameters of Grass Carp Ctenopharyngodon idella Fingerlings

Abstract

A laboratory experiment was carried out to investigate the effect of Thepax and Endo Vit. C as feed additives in the formulated diet on the growth performance of grass carp Ctenopharyngodon idella. The feed (30.11% crude protein) manufactured in the laboratory using raw local materials diet. Young grass carp (Average weight 3.36± 0.95 g) obtained from Aquaculture Unit ponds in Al-Hartha Station for Agricultural Researches, North Basrah. The fish were stocked in nine glass aquarium, three replicates for each treatment, of dimensions 60×40×30 cm provided with pumping aeration. The experimental diets included a control T1 (0% additives), T2 (1g Thepax/kg diet) and T3 (1g Endo Vit. C /kg diet) were used in feeding trail of current experiment. The experiment lasted for 57 days (from 29 Nov. to 24 Jan.) and fishes were fed six days a week using 5% of fish weight as feeding ratio. Results of current study reveals that grass carp fed on formulated feed supplemented with Endo vit. C having high growth performance (WG, DGR, RGR and SGR). The lowest Feed conversion ratio (2.511) was recorded in T3 this value was statistically significant (P≤0.05) with T2 while the highest value (2.767) was observed on the control. Protein efficiency ratio, feed intake and gross conversion efficiency were also recorded high values in T3, but control displayed superior values compared with Thepax treatment, which showed higher value of Relative feed intake compared to other two treatments.

Assessment of Thepax and Bio Boost for promoting microbial growth in common carp intestines Cyprinus carpio.

“…Al-Faragi 23 also increased weight indicator values by adding the prebiotic beta-glucan to common carp feed for eight weeks. While the results of the present study did not agree with those of Taher et al 24 in grass carp (Ctenopharyngodon Idella) when adding 1 g/kg Thepax and 1 g/kg vitamin C to the diets, as no statistically significant differences were recorded with the control treatment in final weight and weight gain.…”

Effect of Feeding Different Percentage of Biomass of a Certified Commercial Diet on Growth Performance and Feed Utilization for Common Carp (Cyprinus carpio L.)

“…Nutrition is an important factor effects on the growth and physiological performance of fish [4]. This composition depends on feed industry according to scientific study, calculates the proportions of its components mainly from protein to energy and other nutrients [7]. The cost of diet for fish farm projects is estimated at 70-76% of the total cost, Therefore, it is necessary to reach the most appropriate diet that provides sufficient need without wasting nutrition resources [5].…”

“…The use of floating feed technology can save it from loss, which was made according to modern technologies, therefore, the feed material does not dissolve in the water and remains floating for a long time, which leads to no change in the quality and color of the water or loss in the nutrients from the feed or the active substances that have a positive effect on the growth of fish [6]. Quantity of feed provided depending on the weight of the biomass, The type of fish determines the type of feed provided, as the available natural food contributes to raising floating cages in rivers or lakes by supporting growth in a simple way, The percentage of feeding used for the floating cage system is 3-7% of the weight of the biomass and research and experiment confirmed that the ideal percentage is 5% of biomass weight of floating feed [7]. In Recent Years, the improvement of fish projects, has led to a development of many new diets to promote fish growth and support health [8].…”

Effect of Amino Acid Taurine on Grass Carp Ctenopharyngodon idella Fingerlings during Salinity Stress

“…There were many local studies on grass carp. Taher et al (2022) studied the effect of some food additives (thebax and vitamin C) on the growth parameters of grass carp fingerlings. Laboratory experiments were also conducted for the cultivation of grass carp, which indicated that the best protein level in the prepared diets was 25% (Taher, 2017).…”