Scholarlink

Abstract <p>This study investigates the effects of a probiotic blend (PB) as a water additive on water quality, growth performance, proximate composition, hematological indices, and biochemical parameters in common carp (<i>Cyprinus</i> <i>carpio</i>). The experimental setup included four groups: control (0 g PB/ha), T1 (250 g PB/ha), T2 (350 g PB/ha) and T3 (450 g PB/ha). Water quality analysis revealed significant improvements (<i>p</i> &lt; 0.05) in treated ponds, with reductions in NH<sub>3</sub> and COD across all treatment levels. The highest probiotic doses (T2 and T3) further decreased TDS, TSS, and BOD levels, while nitrite and phosphate concentrations were notably lower only at the highest dose. Growth performance metrics, including weight gain (WG), length gain (LG), and average daily gain (ADG), displayed a dose-dependent enhancement, with the T3 group showing the most significant improvements (<i>p</i> &lt; 0.05). Specific growth rate (SGR) and condition factor (CF) were also highest in T3 and T2 groups. Feed conversion ratio (FCR) was markedly reduced in treated groups, particularly in T3. Proximate composition analysis indicated a significant increase in crude protein and crude lipid in the T3 group. Ash content decreased in T3, while moisture levels were lowest in T3 but higher in T1 compared to the control. Hematological parameters, including RBC, Hct, Hb, neutrophil, and eosinophil counts, significantly increased in the T3 group. WBC and monocyte values were highest in T3, with T2 showing intermediate values. Lymphocyte counts were significantly higher in T2 and T3 compared to the control. Biochemical analysis demonstrated elevated levels of LDH, ALP, albumin, globulin, and total protein in the T3 group, with a dose-dependent trend observed across the treatment groups. In conclusion, the application of PB in carp ponds significantly enhances water quality, growth performance, and fish health, as evidenced by improved proximate composition, hematological indices, and biochemical parameters. These findings support the use of PB as an effective aquaculture additive for optimizing pond ecosystems and fish productivity.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Effect of Mixed Probiotics on Growth Performance, Hematological and Biochemical Parameters of Fry Common Carp (Cyprinus carpio)

  • 期刊论文

  • 发表日期：

    2025年2月1日

查看全文
  • Hosein Ghorbani Koutanaei,
  • Reza Changizi,
  • Shayan Ghobadi,
  • Babak Moghaddasi,
  • Hamed Manouchehri

摘要

Abstract

This study investigates the effects of a probiotic blend (PB) as a water additive on water quality, growth performance, proximate composition, hematological indices, and biochemical parameters in common carp (Cyprinus carpio). The experimental setup included four groups: control (0 g PB/ha), T1 (250 g PB/ha), T2 (350 g PB/ha) and T3 (450 g PB/ha). Water quality analysis revealed significant improvements (p < 0.05) in treated ponds, with reductions in NH3 and COD across all treatment levels. The highest probiotic doses (T2 and T3) further decreased TDS, TSS, and BOD levels, while nitrite and phosphate concentrations were notably lower only at the highest dose. Growth performance metrics, including weight gain (WG), length gain (LG), and average daily gain (ADG), displayed a dose-dependent enhancement, with the T3 group showing the most significant improvements (p < 0.05). Specific growth rate (SGR) and condition factor (CF) were also highest in T3 and T2 groups. Feed conversion ratio (FCR) was markedly reduced in treated groups, particularly in T3. Proximate composition analysis indicated a significant increase in crude protein and crude lipid in the T3 group. Ash content decreased in T3, while moisture levels were lowest in T3 but higher in T1 compared to the control. Hematological parameters, including RBC, Hct, Hb, neutrophil, and eosinophil counts, significantly increased in the T3 group. WBC and monocyte values were highest in T3, with T2 showing intermediate values. Lymphocyte counts were significantly higher in T2 and T3 compared to the control. Biochemical analysis demonstrated elevated levels of LDH, ALP, albumin, globulin, and total protein in the T3 group, with a dose-dependent trend observed across the treatment groups. In conclusion, the application of PB in carp ponds significantly enhances water quality, growth performance, and fish health, as evidenced by improved proximate composition, hematological indices, and biochemical parameters. These findings support the use of PB as an effective aquaculture additive for optimizing pond ecosystems and fish productivity.