The Hormonal Control of Metabolism in Crustaceans. Ix. Carbohydrate Metabolism in the Transition From Intermoult to Premoult in Carcinides Maenas

Scheer, Bradley T.

doi:10.2307/1539165

Cited by 26 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Injection of eyestalk extract resulted in increase in the haemo-lymph sugar level in eyestalk-ablated crabs indicating the presence of hyperglycaemic hormone in the eyestalks of crabs. Similar results were reported in crabs [30,31,[38][39][40][41][42] prawns [33,43] crayfishes [25,44,45] and in shrimps [46].…”

Section: Discussionsupporting

confidence: 86%

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

Kishori

Reddy

2005

Comptes Rendus. Biologies

View full text Add to dashboard Cite

In the present study, the role of eyestalks and involvement of methionine-enkephalin in the regulation of haemolymph sugar level was studied. Bilateral eyestalk ablation significantly decreased the haemolymph sugar levels, whereas injection of eyestalk extract into ablated crabs significantly increased the haemolymph sugar levels. Total carbohydrate (TCHO) and glycogen levels were significantly increased in hepatopancreas and muscle of eyestalk-ablated crabs, with a decrease in phosphorylase activity. Injection of eyestalk extract into ablated crabs resulted in partial/complete reversal of these changes. Injection of methionine-enkephalin into intact crabs significantly increased the haemolymph sugar level in a dose-dependent manner. Total tissue carbohydrate and glycogen levels were significantly decreased, with an increase in phosphorylase activity in hepatopancreas and muscle tissues of intact crabs after methionine-enkephalin injection. Methionine-enkephalin injection did not cause any changes in haemolymph sugar, tissue total carbohydrate and glycogen levels and activity levels of phosphorylase in eyestalk-ablated crabs. These results suggest that the eyestalks are the main source of hyperglycaemic harmone and methionine-enkephalin induces hyperglycaemia through eyestalks.

show abstract

Section: Discussionsupporting

confidence: 86%

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

Kishori

Reddy

2005

Comptes Rendus. Biologies

View full text Add to dashboard Cite

show abstract

“…In the study of the lobster referred to above a cycle of changes in blood sugar levels during the molt cycle was found in a group of 800 animals. Scheer, 1959 ;McWhinnie and Sailer, 1960).…”

Section: Discussionmentioning

confidence: 99%

The Identification and Measurement of Sugars in the Blood of Three Species of Atlantic Crabs

Telford¹

1968

The Biological Bulletin

View full text Add to dashboard Cite

Although considerable attention has been given to the physiology and biochemistry of the Crustacea, their carbohydrate metabolism did not become known until Hu (1958) found evidence that it was not unlike that of other animals.Using paper chromatography Hu found glucose, maltose, maltotriose, maltotetrose and two other oligosaccharides in the blood of the crab, Hemic/rapsus nudus. Since then these same sugars have been reported in Cancer magister (Meenakshi

show abstract

“…Besides the life stages, the utilization and energy reserves of carbohydrates are also affected by moulting stages 143,145 . The increased level of carbohydrates is required during pre‐moulting stage to act as a precursor of chitin synthesis 184 . Moreover, the specific effects of ‘eyestalk factors’ which are currently known as crustacean hyperglycaemic hormone (CHH) on the blood sugar and hepatopancreatic glycogen storage varies with different moulting stages 185,186 .…”

Section: Factors Affecting Carbohydrate Utilization In Crustaceansmentioning

confidence: 99%

“…143,145 The increased level of carbohydrates is required during pre-moulting stage to act as a precursor of chitin synthesis. 184 Moreover, the specific effects of 'eyestalk factors' which are currently known as crustacean hyperglycaemic hormone (CHH) on the blood sugar and hepatopancreatic glycogen storage varies with different moulting stages. 185,186 Additionally, the occurrence of pentose-phosphate pathway is found to be high during intermolt stage (primarily stage C) and reduced in pre-moult stage 6,144,187,188 and this finding suggests the metabolic changes during moulting stages and thereby variation in carbohydrate utilization.…”

Section: Effects Of Age and Moulting Stagesmentioning

confidence: 99%

A strategic roadmap for carbohydrate utilization in crustaceans feed

Singha,

Sahu,

Sardar

et al. 2023

Reviews in Aquaculture

View full text Add to dashboard Cite

Carbohydrates serve as essential macronutrients in aquaculture feeds, providing cost‐efficiency and numerous advantages, including energy supply, pellet stability, reduced ammonia excretion, and support for exoskeleton synthesis in crustaceans. Despite their significance, research on carbohydrate nutrition in crustaceans has been relatively limited compared to finfish. This comprehensive review addresses this knowledge gap by presenting contemporary insights into carbohydrate utilization in commercially important crustacean species, encompassing shrimps, prawns, crabs, lobsters, and crayfishes. The review underscores the pivotal role of carbohydrates, identifies limiting factors, and outlines strategies for enhancing efficiency. Wheat and sorghum/milo emerge as particularly promising carbohydrate sources. Nevertheless, determining species‐specific carbohydrate inclusion levels remains essential for further investigation. This review also emphasizes species‐specific distinctions in carbohydrate utilization during starvation, influenced by factors such as age, moulting stage, and digestive capacity. Challenging the misconception that carbohydrates are superfluous for crustaceans is imperative. Additional research to advance comprehension of their utilization mechanisms is vital. Enhanced knowledge of carbohydrate utilization can pave the way for economically sustainable and environmentally friendly feeds in crustacean aquaculture. Furthermore, exploring exogenous enzyme potential, optimizing pre‐treatment methodologies, and harnessing probiotics can further augment carbohydrate utilization. These advancements hold promise for bolstering the growth and sustainability of the crustacean industry, meeting the surging demand for seafood production while minimizing environmental impact.

show abstract

The Hormonal Control of Metabolism in Crustaceans. Ix. Carbohydrate Metabolism in the Transition From Intermoult to Premoult in Carcinides Maenas

Cited by 26 publications

References 6 publications

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

Role of methionine-enkephalin on the regulation of carbohydrate metabolism in the rice field crab Oziotelphusa senex senex

The Identification and Measurement of Sugars in the Blood of Three Species of Atlantic Crabs

A strategic roadmap for carbohydrate utilization in crustaceans feed

Contact Info

Product

Resources

About