Stochastic dynamic model analysis of the effect of stocking density on the monosex production of male redclaw crayfish Cherax quadricarinatus reared in commercial gravel-lined ponds

Naranjo‐Páramo, José; Hernández‐Llamas, Alfredo; Vargas-Mendieta, Mayra; Villarreal, Humberto

doi:10.1016/j.aquaculture.2021.736351

Cited by 10 publications

(4 citation statements)

References 46 publications

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“…The reason why the crayfish have stress may be because, during the culture systems, the process is affected by a wide variety of factors including gender, acclimation time, dissolved oxygen concentration, food availability, temperature, photoperiod, sexual maturity, age and moulting, especially during the reproduction process (Aiken & Waddy, 1992; Charniaux‐Cotton, 1988; Chittleborough, 1975; Hartnoll, 1983; Naranjo‐Páramo et al, 2021) and we observed that through rearing crayfish. However, the specific reason is yet to be studied.…”

Section: Discussionmentioning

confidence: 99%

“…RC‐crayfish has sufficient biological and commercial characteristics adequate for farming (Saoud et al, 2013; Villarreal & Peláez, 1999). By value, crayfish production contributes to 4.01 % of world aquaculture (Cai et al, 2019), and it is considered a promising new species that will help meet the rising demand for seafood in the world (Naranjo‐Páramo et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Dietary supplementations modulate the physiological parameters, fatty acids profile and the growth of red claw crayfish (Cherax quadricarinatus)

Shehata

Alhoshy

Wang

et al. 2022

Animal Physiology Nutrition

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An optimal diet is an important factor for the proper growth and health of crustaceans. However, the regulation of antioxidant activity and non-specific immunity related to the consumption of feed additives has not been studied in RC-crayfish. Triplicate groups of 20 crayfish/tank (36.72 ± 0.70 g) fed with a basal diet and sixteen experimental diets that contained five feed additives with four grade levels (40, 160, 240 and 320 mg/kg vitamin E, 2, 4, 6 and 8 g/kg nucleotides, 2, 4, 6 and 8 g/kg Haematococcus pluvialis, 5, 10, 15 and 20 g/kg arachidonic acid and 2.5, 5, 10 and 15 g/kg yeast extract) on physiological parameters, fatty acids profile and growth of Cherax quadricarinatus for a period of 70 days by using orthogonal array method (L16 4 5 ). The results showed that the antioxidants activity in the haemolymph and hepatopancreas were both higher in crayfish fed with diets NO. 9 to 12 than others. Also, all the diets except diets NO. 13 to 16 showed lower free radicals contents than the control group. Similarly, significantly higher nonspecific immune parameters were observed in the hepatopancreas of crayfish supplementations than those fed a control diet. Biochemical parameters related to protein profile in haemolymph increased in diets NO. 9 to 12 and then decreased in control and diets NO. 13 to 16, while the highest biochemical parameters related to lipid profile except HDL-c contents in haemolymph were observed in crayfish fed the control diet. Fatty acid composition in the hepatopancreas, muscle and ovary of RC-crayfish was significantly influenced by using the combination of Vit E, NT, H. pluvialis and YP compared to the control group. Compared to all treatments, RCcrayfish fed with diets NO. 2 and 12 had significantly stimulated higher growth performance and feed utilisation. Overall, our results suggest that diets supplemented with Vit E level of 240 mg/kg, in combination with 8 g/kg NT, 4 g/kg, H. pluvialis, 5 g/kg ARA and 10 g/kg YP are the promising treatments to increase antioxidants activity, non-specific immune response, fatty acids composition and growth of RC-crayfish. However, high dietary supplementations level can reduce antioxidants activity, immunity and inhibit growth.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dietary supplementations modulate the physiological parameters, fatty acids profile and the growth of red claw crayfish (Cherax quadricarinatus)

Shehata

Alhoshy

Wang

et al. 2022

Animal Physiology Nutrition

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“…Of these, integrated rice-crayfish farming has been widely adopted in China, leading in both the scale of implementation and production output [4,5]. The red claw crayfish C. quadricarinatus is distinguished by its considerable size, swift growth rate, robust disease resistance, stronger adaptability, and significant economic value, making it an integral choice for integrated rice-crayfish farming since its introduction to China in 1992 [13,14,[17][18][19]. As typical benthic organisms, crayfish can influence aquatic ecosystems, playing a crucial role in biogeochemical cycles and altering benthic bacterial communities at the sediment-water interface [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Influences of the Integrated Rice-Crayfish Farming System with Different Stocking Densities on the Paddy Soil Microbiomes

Hou,

Jia,

Sun

et al. 2024

IJMS

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Integrated rice-fish farming has emerged as a novel agricultural production pattern to address global food security challenges. Aiming to determine the optimal, scientifically sound, and sustainable stocking density of red claw crayfish (Cherax quadricarinatus) in an integrated rice-crayfish farming system, we employed Illumina high-throughput 16S rRNA gene sequencing to evaluate the impact of different stocking densities of red claw crayfish on the composition, diversity, function, and co-occurrence network patterns of soil bacterial communities. The high stocking density of red claw crayfish reduced the diversity and evenness of the soil bacterial community during the mid-culture stage. Proteobacteria, Actinobacteria, and Chloroflexi emerged as the most prevalent phyla throughout the experimental period. Low stocking densities initially boosted the relative abundance of Actinobacteria in the paddy soil, while high densities did so during the middle and final stages. There were 90 distinct functional groups identified across all the paddy soil samples, with chemoheterotrophy and aerobic chemoheterotrophy being the most abundant. Low stocking densities initially favored these functional groups, whereas high densities enhanced their relative abundances in the later stages of cultivation. Medium stocking density of red claw crayfish led to a more complex bacterial community during the mid- and final culture stages. The experimental period showed significant correlations with soil bacterial communities, with total nitrogen (TN) and total phosphorus (TP) concentrations emerging as primary factors contributing to the alterations in soil bacterial communities. In summary, our findings demonstrated that integrated rice-crayfish farming significantly impacted the soil microbiomes and environmental factors at varying stocking densities. Our study contributed to theoretical insights into the profound impact of integrated rice-crayfish farming with various stocking densities on bacterial communities in paddy soils.

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“…There are two farming models for C. quadricarinatus including pond monoculture and rice-crayfish co-culture in China. The suitable stocking density of C. quadricarinatus in the pond monoculture has been reported, and the effect of high stocking density on growth performance was evaluated ( Pinto and Rouse, 1996 ; Naranjo-Páramo et al, 2021 ). However, in rice-crayfish co-culture system, the suitable stocking density has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Effects of stocking density on the growth performance, mitophagy, endocytosis and metabolism of Cherax quadricarinatus in integrated rice–crayfish farming systems

et al. 2022

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Red claw crayfish (Cherax quadricarinatus) is an economic freshwater shrimp with great commercial potential. However, the suitable stocking density of C. quadricarinatus is still unclear in integrated rice–crayfish farming system. Thus, this study aimed to investigate the effects of stocking density on growth performance, mitophagy, endocytosis and metabolism of C. quadricarinatus. The C. quadricarinatus was reared at low density (LD, 35.73 g/m2), middle density (MD, 71.46 g/m2) and high density (HD, 107.19 g/m2) in an integrated rice–crayfish farming system. After 90 days of farming, the growth performance of C. quadricarinatus significantly decreased in the MD and HD groups relative to that in the LD group. The HD treatment caused oxidative stress and lipid peroxidation at the end of the experiment in hepatopancreas. Transcriptome analysis showed that there were 1,531 DEGs (differently expressed genes) between the LD group and HD group, including 1,028 upregulated genes and 503 downregulated genes. KEGG (Kyoto Encyclopedia of Genes and Genomes) enrichment analysis indicated that the DEGs were significantly enriched in endocytosis and mitophagy pathways. Meanwhile, four lipid metabolism pathways, including biosynthesis of unsaturated fatty acids, fatty acid biosynthesis, glycerolipid metabolism and glycerophospholipid metabolism, exhibited an upregulated tendency in the HD group. In conclusion, our data showed that when the stocking density reached up to 207.15 g/m2 in HD group, the growth performance of C. quadricarinatus was significantly inhibited in this system. Meanwhile, the data indicated that C. quadricarinatus may respond to the stressful condition via activating antioxidant defense system, endocytosis, mitophagy and metabolism-related pathways in hepatopancreas.

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Stochastic dynamic model analysis of the effect of stocking density on the monosex production of male redclaw crayfish Cherax quadricarinatus reared in commercial gravel-lined ponds

Cited by 10 publications

References 46 publications

Dietary supplementations modulate the physiological parameters, fatty acids profile and the growth of red claw crayfish (Cherax quadricarinatus)

Dietary supplementations modulate the physiological parameters, fatty acids profile and the growth of red claw crayfish (Cherax quadricarinatus)

Influences of the Integrated Rice-Crayfish Farming System with Different Stocking Densities on the Paddy Soil Microbiomes

Effects of stocking density on the growth performance, mitophagy, endocytosis and metabolism of Cherax quadricarinatus in integrated rice–crayfish farming systems

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