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<p>An experiment was conducted to evaluate the effects of various animal wastes as minor ingredients in growth, feed utilisation, and overall health status of <i>Anabas testudineus</i> in winter<i>.</i> In winter, fish productivity declines rapidly due to reduced metabolic activity, declined natural productivity, and stress. Utilisation of selected animal wastes may enhance aquaculture productivity by enhancing feed attractability and intake due to their free amino acids, soluble peptides, and flavour compounds that stimulate olfactory and gustatory response in fishes. The waste products: fish waste digest (FWD), biofloc meal (BFM), chicken waste hydrolysate (CWH), shrimp head meal (SHM), and beef liver meal (BLM) were supplemented at 5% inclusion rate in iso-nitrogenous and iso-lipid diet formulation and compared with control feeds. The fishes with initial weight of 1.5–1.6 g were stocked at 400/m<sup>3</sup> density and cultured for 90 days. Throughout the experiment, the temperature ranged between 10.3 and 18.1 °C and all other water quality parameters were maintained at appropriate level. The growth parameters indicated significantly higher (<i>p</i> &lt; 0.05) percentage weight gain (361.45 ± 3.50%), specific growth rate (0.66 ± 0.01%), average daily growth (1.24 ± 0.01 g), survivability (73.33 ± 6.01%), and improved feed conversion ratio (1.25 ± 0.01) in the BFM fed group. Similarly, the haemato-biochemical parameters indicated significantly higher haemoglobin (10.67 ± 0.26 g/dl), haematocrit (4.80 ± 0.15%), total erythrocyte count (34.83 ± 0.09) × 10<sup>6</sup> cells/mm<sup>3</sup>, total protein (3.63 ± 0.09 g/dl), albumin (0.94 ± 0.03 g/dl), globulin (2.69 ± 0.10 g/dl), and A/G ratio (0.35 ± 0.02) in BFM group. Inflammatory markers, digestive enzymes, and antioxidant enzyme levels demonstrated improved physiological responses in BFM group compared with control and other supplemented groups, supporting overall growth and haematological parameters of experimental animals. Whole body proximate indices suggest significantly higher lipid and ash content in control group (C) compared to other supplemented groups and however, crude protein content in BFM group compared with other supplemented groups. Therefore, supplementation of BFM at 5% inclusion rate enhances overall physiological welfare and survivability of <i>Anabas testudineus</i> cultured during winter.</p>

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Comparative evaluation of floc meal and animal waste derived proteins on growth performance and metabolic responses of juvenile Anabas testudineus during winter rearing

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Md Aklakur,
  • Md Imran Shah,
  • Md Amjad,
  • Udipta Roy,
  • Potluri Sai Kishore,
  • Sangeeta Mandal,
  • Barkha Asthana

摘要

An experiment was conducted to evaluate the effects of various animal wastes as minor ingredients in growth, feed utilisation, and overall health status of Anabas testudineus in winter. In winter, fish productivity declines rapidly due to reduced metabolic activity, declined natural productivity, and stress. Utilisation of selected animal wastes may enhance aquaculture productivity by enhancing feed attractability and intake due to their free amino acids, soluble peptides, and flavour compounds that stimulate olfactory and gustatory response in fishes. The waste products: fish waste digest (FWD), biofloc meal (BFM), chicken waste hydrolysate (CWH), shrimp head meal (SHM), and beef liver meal (BLM) were supplemented at 5% inclusion rate in iso-nitrogenous and iso-lipid diet formulation and compared with control feeds. The fishes with initial weight of 1.5–1.6 g were stocked at 400/m3 density and cultured for 90 days. Throughout the experiment, the temperature ranged between 10.3 and 18.1 °C and all other water quality parameters were maintained at appropriate level. The growth parameters indicated significantly higher (p < 0.05) percentage weight gain (361.45 ± 3.50%), specific growth rate (0.66 ± 0.01%), average daily growth (1.24 ± 0.01 g), survivability (73.33 ± 6.01%), and improved feed conversion ratio (1.25 ± 0.01) in the BFM fed group. Similarly, the haemato-biochemical parameters indicated significantly higher haemoglobin (10.67 ± 0.26 g/dl), haematocrit (4.80 ± 0.15%), total erythrocyte count (34.83 ± 0.09) × 106 cells/mm3, total protein (3.63 ± 0.09 g/dl), albumin (0.94 ± 0.03 g/dl), globulin (2.69 ± 0.10 g/dl), and A/G ratio (0.35 ± 0.02) in BFM group. Inflammatory markers, digestive enzymes, and antioxidant enzyme levels demonstrated improved physiological responses in BFM group compared with control and other supplemented groups, supporting overall growth and haematological parameters of experimental animals. Whole body proximate indices suggest significantly higher lipid and ash content in control group (C) compared to other supplemented groups and however, crude protein content in BFM group compared with other supplemented groups. Therefore, supplementation of BFM at 5% inclusion rate enhances overall physiological welfare and survivability of Anabas testudineus cultured during winter.