Work

Effect of different stocking densities on growth performance, feed utilization, and survival of Labeo angra (Hamilton) fry in aquaria

Year: 2025

Type: article

Abstract: This study was conducted to assess the effect of stocking density on the growth performance, feed utilization, and survival of Labeo angra (Hamilton) in nine glass aquaria each containing 30 l of water for 45 days. Three different stocking densities of 1, 1.5, and 2 fry l −1 of water (T 1 ,T 2 and T 3 , respectively) were assessed in three replicates each. L. angra fry of approximately 0.32 ± 0.10 g weight were stocked and fed with a commercial feed four times daily at a rate of 15–30% body weight. Growth performance in terms of final weight (2.53 ± 0.22 g), weight gain (2.20 ± 0.05 g), percentage of weight gain (567.68 ± 15.25%), average daily gain (4.90 ± 0.11% day −1 ), and specific growth rate (4.54 ± 0.04% day −1 ) showed significantly higher values in T 2 compared to the other treatments. Significantly lower feed conversion ratios and the highest protein efficiency ratio were noted in T 2 (1.5 fry l −1 ) diets. Significantly higher survival was observed in T 2 compared to T 1 and T 3 . However, the results indicated that T 2 (1.5 fry l −1 ) had more positive influence on the enhancement of growth performance, feed utilization, and survival of L. angra fry nursing in aquaria.

Source: Fisheries & Aquatic Life

DOI: 10.2478/aopf-2025-0012

Authors: Akhtaruzzaman, Mst. Nahid Akter, Azhar Ali, Srebash Kumar Saha, Moumita Habiba Sarmin Dorin

Institutions: Hajee Mohammad Danesh Science and Technology University, Bangladesh Fisheries Research Institute

Language: English

Topic: Aquaculture Nutrition and Growth

Subfield: Aquatic Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Zero hunger, Life below water

Open Access status: diamond

Funder: Bangladesh Fisheries Research Institute