Effects of Jerusalem artichoke-enriched diet on water quality, growth performance, feed utilization, proximate body composition, and hematology and biochemical parameters in common carp fingerlings.

The purpose of this research was to evaluate the impact of Jerusalem artichoke tubers (Helianthus tuberosus L.), a natural prebiotic, on the growth performance, proximate body composition, feed utilization, hematology, and biochemical parameters in common carp (Cyprinus carpio) fingerlings. Four JA-supplemented diets were formulated at 0.0% (control), 0.5%, 1%, and 2%. Fish were reared for ten weeks in cages placed in concrete ponds. Based on the results, an increase in the levels of JA supplementation led to significant improvements in growth and feed parameters (P<0.05), while the proximate body composition exhibited significant differences (P<0.05) between JA-supplemented-fed fish and the control-fed fish. The hematological profile showed that red blood cells, white blood cells, lymphocytes, hematocrit, hemoglobin, and mean corpuscular volume were significantly enhanced by supplementing dietary with JA at varying levels (P>0.05). However, the fish fed with a JA-supplemented diet exhibited significantly lower levels of red cell distribution width, red cell distribution, monocytes, granulocytes, mean corpuscular hemoglobin in fL, and mean corpuscular hemoglobin concentration (P<0.05). Biochemical indices revealed that fish in the experimental groups had significantly higher total protein, globulin, albumin, lipase, high-density lipoprotein, and amylase than the control-fed fish (P<0.05). The creatinine, glucose, triglyceride, cholesterol, urea, alanine transaminase, aspartate aminotransferase, and low-density lipoprotein were significantly decreased in JA dietary treatments than control diet (P<0.05). It was also found that dietary JA supplements promoted growth parameters, proximate body composition, hematology, and serum biochemical in common carp fingerlings.

Evaluation of dietary rosemary leaf powder on growth, carcass composition and hemato-biochemical profiles of common carp (Cyprinus carpio) reared in cage system.

This study was conducted to evaluate the effect of rosemary (Rosmarinus officinalis) leaf powder (RLP) at 0.0% (control), 0.5%, 1% and 2% as a dietary supplement for eight weeks, on the growth performance, carcass composition and haemato-biochemical parameters. One hundred twenty common carp (Cyprinus carpio) (21.11±0.17g) were randomly distributed to 12 cages (0.2 m3) with three replicates for 56 days. The results showed that RLP-supplemented diets achieved significant enhancement of growth performance (FBW, SGR and WG) and feed utilization (FCR, FCE and PI) compared with a control group. In addition, TFI and PI were significantly improved in 0.5 and 2% RLP-supplemented groups. RLP had no significant effects on body composition except moisture content which was significantly increased in fish fed with a 1% supplemented diet and crude protein which was significantly decreased in fish fed with a 1% supplemented diet compared to the control diet. The results showed a significant increase in RLP-supplemented diets in RBC counts, LYM, MCV, hematocrit, total protein, albumin and globulin compared with the control group. WBC counts significantly increased in fish fed the 0.5 and 2% RLP diets, and hemoglobin significantly elevated in fish fed the 1% RLP diet. Glucose, GRA, MCH, MCHC and MPV were significantly decreased in the group fed the RLP diets compared with the control group. The AST, ALT, LDL, VLDL, CHO and TG levels showed a significant decrease in RLP compared to the control diet (P < 0.05), while ALP level fluctuated (P > 0.05). The urea and creatinine levels were higher in the RLP groups compared with the control (P < 0.05). Dietary RLP 1% increased lipase when compared to the control group. However, amylase levels in fish fed 0.5 and 1% RLP has significantly improved, while fish fed 2% RLP has significantly decreased when compared to the control diet. Overall, the results demonstrated that dietary RLP supplementation enhanced the growth and health status of common carp.