Effects of Feeding Rates on Growth, Digestive Enzyme Activity, Serum Biochemical Parameters, and Body Composition of Juvenile, Genetically Improved, Farmed Nile Tilapia Reared in an In‐Pond Raceway Recirculating Culture System

Wang, Yuyu; Xu, Pao; Nie, Zhou; Li, Quanjie; Shao, Nailin; Gao, Jiancao; Xu, Gaosi

doi:10.1002/naaq.10124

Cited by 6 publications

(4 citation statements)

References 51 publications

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“…Previous studies on tilapia rearing encompassed an array of stocking densities in IPRS, such as 0.28 kg/m 3 –0.85 kg/m 3 , 29 2.40 kg/m 3 , 4 and 0.57 kg/m 3 . 30 Different stocking densities raised in tank system was 0.0000019 kg/m 3 –2.04 kg/m 3 , 31 0.0024 kg/m 3 –0.016 kg/m 3 , 32 0.58 kg/m 3 –1.46 kg/m 3 , 33 and 1 kg/m 3 –15 kg/m 3 . 34 In cage culture, cultured densities were 0.87 kg/m 3 –2.63 kg/m 3 , 35 1.45 kg/m 3 –5.8 kg/m 3 , 36 and 2.25 kg/m 3 –9.15 kg/m 3 .…”

Section: Introductionmentioning

confidence: 99%

Investigating the optimum stocking density of tilapia (Oreochromis niloticus) for intensive production focused to in-pond raceway system

Komal,

Fatima,

Minahal

et al. 2024

Science Progress

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The primary objective of this trial was to study the effects of stress caused by stocking density in tilapia ( Oreochromis niloticus) cultured in the in-pond raceway system (IPRS). Fingerlings (Initial body weight = 30.00 ± 1.20 g) were reared at different stocking densities i.e. low stocking density (n = 13,000; 1.77 kg/m3), medium stocking density (MSD) (n = 17,000; 2.32 kg/m3), and high stocking density (HSD) (n = 21,000; 2.86 kg/m3), all confined within the raceways of the IPRS. Each group was studied in triplicates. The observed growth revealed a regression in the HSD treatment, evident in its reduced weight gain per fish per day, in contrast to other treatments. Survival rate across all treatments was above 99%. Notably, the HSD treatment exhibited an elevated level of cortisol; however, this intensified crowding stress did not significantly undermine the nutritional value of the fish in HSD and other experimental treatments. Furthermore, an elevation in the levels of superoxide dismutase, catalase, and glutathione peroxidase was noted within the HSD treatment in comparison to the other treatments to reduce the damage caused by reactive oxygen species. As the trial proceeded, functions of digestive enzymes like amylase, protease, and lipase diminished consistently across all treatments. This could possibly signify a deliberate redirection of energy resources toward stress alleviation rather than the usual digestive processes. In summation, it can be reasonably deduced that a stocking density of approximately 2.32 kg/m3 (MSD) emerges as the optimal threshold for effectively cultivating tilapia within an intensive aquaculture framework.

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Section: Introductionmentioning

confidence: 99%

Investigating the optimum stocking density of tilapia (Oreochromis niloticus) for intensive production focused to in-pond raceway system

Komal,

Fatima,

Minahal

et al. 2024

Science Progress

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“…Their study shows that the stocking density of 33 fish m -3 in the BFT system is the most profitable [9] while the ideal stocking density for excellent growth performance and feed utilization is 40 fish m -3 [10]. For the feeding rate, 2 studies suggest that a feeding rate of 5% body weight per day is the most appropriate level for tilapia and feeding twice a day in a BFT system [11,12]. However, another study suggests that the feeding rate can be at 4.3% and 6.1% for lower feed costs and better growth performance respectively [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of biofloc technology at varies biological factors on the growth performance and water quality in cultivation of red hybrid tilapia

Jong,

Zainul Alam,

Kamaruddin

2024

E3S Web Conf.

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Aquaculture is one of the important food-producing sectors. However, the effluent of the aquaculture system consists of pollutants such as nitrogenous compounds and the ample usage of water for traditional aquaculture systems. Therefore, biofloc technology was developed in the aquaculture industry in the 1980s to improve the water quality of the system and increase the fish production. The purpose of this experimental work is to investigate the effect of biological factors on the growth performance of fish and the water quality of the biofloc technology (BFT) aquaculture system for red hybrid tilapia cultivation. In this study, 3 biological factors such as the carbon-to-nitrogen ratio, stocking density and the feeding rate were studied under BFT. Parallel experiments in thirteen suspended growth tanks were carried out within (10:1-20:1) C/N ratio, (1%-5%) feeding rate and (20-80 fish m-3) stocking density for 10 weeks. Growth rate of fish and water quality data such as ammonia, nitrite and nitrate concentrations were collected weekly during the study. The results revealed that the 20:1 C/N ratio gave the best water quality. Feeding rate at 4% of body weight produced good growth performance of the tilapia species and the higher stocking densities lead to lower water quality and survival rate.

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“…The approximate area of fish culture in IPRS in China is about 400,000 m 2 (Y. Y. Wang et al, 2019). The entire system of IPRS is divided into three functional areas: water catchment and aquaculture area, waste collection area, and ecological purification area.…”

Section: Introductionmentioning

confidence: 99%

“…In‐pond raceway system (IPRS) is a circulating water high‐density pond culture mode, which uses only 3%–5% of the pond area for cultivation. The approximate area of fish culture in IPRS in China is about 400,000 m 2 (Y. Y. Wang et al, 2019). The entire system of IPRS is divided into three functional areas: water catchment and aquaculture area, waste collection area, and ecological purification area.…”

Section: Introductionmentioning

confidence: 99%

Study on flesh quality and physiological response of grass carp cultivated at higher density in‐pond raceway system

Peng

Zhang

Wang³

et al. 2022

J World Aquaculture Soc

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In‐pond raceway systems (IPRS) are a high‐density ecological green pond aquaculture mode, which has developed rapidly in China in recent years. This study evaluated the flesh quality and physiological response of grass carp under the IPRS mode. Compared with the traditional earthen pond (EP) mode, the grass carp hepatosomatic index and viscerosomatic index under the IPRS mode are significantly (p < 0.05) lower. And the water holding capacity of grass carp muscles were significantly (p < 0.05) improved. Compared with EP mode, grass carp muscles under the IPRS mode have more crude protein content and less crude fat content, and have higher muscle fiber density and smaller muscle fiber diameter. In the IPRS mode, the total amount of essential amino acids (∑EAA) in grass carp muscle increased significantly (p < 0.05), and the content of savory amino acids increased significantly (p < 0.05). In addition, the content of eicosapentaenoic acid and docosahexaenoic acid in the muscle fatty acids of IPRS grass carp was also significantly (p < 0.05) higher than EP mode. At the same time, in order to cope with the high‐density culture mode of IPRS, the activity of catalase and superoxide dismutase in grass carp muscle was significantly (p < 0.05) increased, and the alanine aminotransferase in serum, aspartate aminotransferase, as well as other biochemical indexes, increased significantly (p < 0.05). In the IPRS mode, the mass‐specific lamellae respiratory area of the gill increased significantly (p < 0.05), and the volume of the interlaminar cell mass decreased significantly (p < 0.05) to increase oxygen intake. Taken together, our results show that grass carp will produce relevant physiological response to cope with the IPRS high‐density culture environment, while their flesh yield, flesh quality, and nutritional value is improved.

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Effects of Feeding Rates on Growth, Digestive Enzyme Activity, Serum Biochemical Parameters, and Body Composition of Juvenile, Genetically Improved, Farmed Nile Tilapia Reared in an In‐Pond Raceway Recirculating Culture System

Cited by 6 publications

References 51 publications

Investigating the optimum stocking density of tilapia (Oreochromis niloticus) for intensive production focused to in-pond raceway system

Investigating the optimum stocking density of tilapia (Oreochromis niloticus) for intensive production focused to in-pond raceway system

Effect of biofloc technology at varies biological factors on the growth performance and water quality in cultivation of red hybrid tilapia

Study on flesh quality and physiological response of grass carp cultivated at higher density in‐pond raceway system

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