Leucine promotes protein synthesis of juvenile white shrimp Litopenaeus vannamei through TOR signaling pathway

Wei, Zonglu; Zhuang, Yutong; Liu, Xinting; Zou, Danyang; Mai, Kangsen; Sun, Zhenzhu; Ye, Chaoxia

doi:10.1016/j.aquaculture.2022.739060

Cited by 5 publications

(4 citation statements)

References 73 publications

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“…Appropriate lysine can reduce the oxidation of other amino acids by increasing the utilization rate of other EAA, thus improving the growth rate of Penaeus shrimp (Xie et al, 2012). Leucine can improve the growth performance and muscle crude protein content of P. vannamei (Wei et al, 2023). At salinity conditions of 1‰ and 5‰, higher lysine in the TH may promote the absorption and utilization of essential amino acids, and leucine may promote muscle growth and ber synthesis to increase muscle crude protein content.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, methionine is the rst limiting amino acid in most shrimp diets, and the growth state of the shrimp can be judged by knowing the levels of methionine and other essential amino acids (Terrazas-Fierro et al, 2010). Studies have shown that leucine improved the growth performance of P. vannamei, increased the content of muscle crude protein, increased the number and area of hepatopancreas ber cells, and decreased the serum and hepatopancreas glucose content (Wei et al, 2023). There is a signi cant interaction between leucine and isoleucine, for example, as leucine content increased, so did isoleucine requirements in Oncorhynchus tshawytscha (Chance et al, 1964).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of growth performance and biochemical components between low salinity tolerant hybrid and imported populations of Pacific white shrimp, Penaeus vannamei

Zhang

Yang

et al. 2023

Preprint

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Penaeus vannamei, a high yield economical shrimp, is confronting germplasm degradation in the brine culture environments found in China. Genetic improvement by hybridization is an effective way to solve this problem. In this study, EB and CE hybrid was obtained from Guam wild B, C and E families from Shanghai Ocean University. EB and CE were used as parents to obtain genetic hybrids suitable for freshwater culture. The control group was shrimp imported from the Hainan Lutai Company. The two groups of shrimp were cultured for 3 months under salinities of 1‰, 5‰, and 15‰. Growth performance-related indicators, biochemical composition, and growth-related gene expression were examined. The results showed that at salinities of 1‰ and 5‰, the survival rate and growth performance of the low salt breeding group were better than those of the imported population. The digestive enzyme activity in the low salt breeding group was higher, which was consistent with its better growth performance, and was also associated with higher triglyceride, total cholesterol, and glycogen content. Lower levels of lactic acid indicated less anaerobic metabolism and better adaptability to the environment. The amino acid analysis of fatty acids showed that levels of essential amino acids and high unsaturated fatty acids were both higher in the low-salt breeding group than in the imported shrimp cultured in low salinity. The expression levels of genes associated with growth and hair removal were also higher in the low salt breeding group than in the imported shrimp group. The results indicated that the hybrid shrimp showed better growth performance and nutritional advantages compared with the imported shrimp under salinities of 1‰ and 5‰. This research provided a valuable reference for subsequent genetic breeding and shrimp culture.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of growth performance and biochemical components between low salinity tolerant hybrid and imported populations of Pacific white shrimp, Penaeus vannamei

Zhang

Yang

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Appropriate lysine can reduce the oxidation of other amino acids by increasing the utilization rate of other EAA, thus improving the growth rate of Penaeus shrimp [ 57 ]. Leucine can improve the growth performance and muscle crude protein content of P. vannamei [ 30 ]. At salinity conditions of 1 PSU and 5 PSU, higher lysine in the TH may promote the absorption and utilization of essential amino acids, and leucine may promote muscle growth and fiber synthesis to increase muscle crude protein content ( Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

“…Essential amino acids (EAAs), as they cannot be synthesized by humans, must be obtained from the regular diet [ 29 ]. Studies have shown that leucine increased the content of muscle crude protein, increased the number and area of hepatopancreas fiber cells, and improved the growth performance of P. vannamei [ 30 ]. Besides, free amino acids can accumulate in intracellular compartments and have been shown to play an important role as organic penetrants in osmoregulation of marine invertebrates [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Growth Performance and Biochemical Components between Low-Salinity-Tolerant Hybrid and Normal Variety of Pacific White Shrimp (Penaeus vannamei)

Ye,

Zhu,

Zhang

et al. 2023

Animals

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Penaeus vannamei, a high-yield economical shrimp, is confronting germplasm degradation in the culture environments found in China, which results in a sharp drop in production. Genetic improvement by hybridization is an effective way to solve this problem. In this study, we selected the hybrid species adapted to low-salinity culture obtained by intraspecific crossing as the experimental group. The control group consisted of normal variety from the Hainan Lutai Company. The two groups of shrimps were cultured for three months under salinities of 1 PSU, 5 PSU, and 15 PSU. Growth-performance-related indicators, biochemical composition, and molting-related gene expression were examined. The results showed that at salinities of 1 PSU and 5 PSU, the survival rate and growth performance of the low-salt breeding group were better than those of the normal variety population. The digestive enzyme activity in the low-salt breeding group was higher, which was consistent with its better growth performance, and was also associated with higher triglyceride, total cholesterol, and glycogen content. Lower levels of lactic acid indicated less anaerobic metabolism and better adaptability to the environment. The amino acid and fatty acids analysis showed that levels of essential amino acids and high unsaturated fatty acids were both higher in the low-salt breeding group than in the normal variety shrimp cultured in a low-salinity environment. The expression levels of genes associated with molting (CHS, CaMKI, RXR, EcR, HSP60, and HSP70) were also higher in the low-salt breeding group than in the control group. The results indicated that the hybrid shrimp showed better growth performance and nutritional advantages compared with the normal shrimp under salinities of 1 PSU and 5 PSU. This research provides a valuable reference for subsequent genetic breeding and shrimp culture.

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Dietary protein regulates ovarian development through TOR pathway mediated protein metabolism in female Litopenaeus vannamei

Li,

Zhang,

Jiao

et al. 2023

Aquaculture Reports

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Leucine promotes protein synthesis of juvenile white shrimp Litopenaeus vannamei through TOR signaling pathway

Cited by 5 publications

References 73 publications

Comparison of growth performance and biochemical components between low salinity tolerant hybrid and imported populations of Pacific white shrimp, Penaeus vannamei

Comparison of growth performance and biochemical components between low salinity tolerant hybrid and imported populations of Pacific white shrimp, Penaeus vannamei

Comparison of Growth Performance and Biochemical Components between Low-Salinity-Tolerant Hybrid and Normal Variety of Pacific White Shrimp (Penaeus vannamei)

Dietary protein regulates ovarian development through TOR pathway mediated protein metabolism in female Litopenaeus vannamei

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