Fasting and refeeding cause rapid changes in intestinal tissue mass and digestive enzyme capacities of Atlantic salmon (Salmo salar L.)

Krogdahl, Åshild; Bakke-McKellep, Anne Marie

doi:10.1016/j.cbpb.2005.06.002

Cited by 178 publications

(113 citation statements)

References 25 publications

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“…In contrast, body mass and length were not considerably affected by fasting for 40 days in the Atlantic salmon (Krogdhal and Bakke-McKellep 2005) or by fasting for 1-2 months in the yellow perch (Foster and Moon 1991), confirming that fish response to starvation may vary according to the species. The condition factor of the examined eels decreased, although not significantly, after 31 and 58 days of starvation.…”

Section: Biometric Parameterssupporting

confidence: 51%

Physiological responses to starvation in the European eel (Anguilla anguilla): effects on haematological, biochemical, non-specific immune parameters and skin structures

Caruso

Maricchiolo

Micale

et al. 2008

Fish Physiol Biochem

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The physiological effects of short-term starvation on some haematological, biochemical and non-specific immune response parameters together with the histological structure of the skin, were investigated in the European eel, Anguilla anguilla. Blood haemoglobin and haematocrit, serum glucose and cortisol, hemolysins, haemagglutinins, and lysozyme in the plasma, kidney and epidermal extract, were measured in fish after 31, 42 and 58 days of starvation, and compared to those of fed fish. Starvation did not affect haemoglobin and haematocrit values, while an increase in glucose and cortisol levels was found in starved eels by day 42. Haemolytic and haemagglutinating activities decreased in starved eels. On the other hand, starvation caused an increase in the lysozyme content in the epidermal extracts, while no significant variations were observed in kidney and plasma. On the whole, no major changes in metabolic, haematological and non-specific immune parameters were observed when short-term (less than 2 months) starvation was applied to the European eel, suggesting an adaptive response to starvation, rather than a typical alarm-stress response, allowing this species to withstand food deprivation.

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Section: Biometric Parameterssupporting

confidence: 51%

Physiological responses to starvation in the European eel (Anguilla anguilla): effects on haematological, biochemical, non-specific immune parameters and skin structures

Caruso

Maricchiolo

Micale

et al. 2008

Fish Physiol Biochem

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“…Improvement in these parameters is attributed by an increase in digestive capacity of fish during refeeding period as reported by (Bolasina, Perez, and Yamashita, 2006). For instance, enhanced digestive activities were reported in Labeo rohita (Yengkokpam et al, 2013), and Atlantic salmon (Krogdahl & Bakke-Mckellep, 2005) subjected to feed deprivation and refeeding regimes. Meanwhile, Zhang et al (2010) reported higher protease activities in F. chinesis juveniles during refeeding, and noticed improved FER and feed intake parameters and better growth performance compared to the control group.…”

Section: Discussionmentioning

confidence: 80%

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Gabriel¹,

Omoregi²,

Martin³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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This study was designed to determine compensatory growth response of short-term starvation and refeeding cycles on Oreochromis mossambicus juveniles. A total of 360 juveniles were randomly divided into 12 tanks in triplicate groups. The control group (C) was fed three times a day to satiation. The feeding regimes of the other groups were designed as follows: 2 days deprivation /2 days refeeding (2DD2DRF), 2 days deprivation /3 days refeeding (2DD3DRF), and 2 days deprivation /4 days refeeding (2DD4DRF). After 60 days, only fish in 2DD4DRF group presented partial compensatory growth; no significant difference (P>0.05) was observed in the final weight (FW), and specific growth weight (SGR) compared to the control. Hepatosomatic index (HSI), viscerosomatic index (VSI), and condition factor (CF) was not affected by these feeding regimes. Furthermore, improved feed conversion ratio (FCR), and feed efficiency ratio (FER) were observed in 2DD4DRF fish, among groups. Feed intake (FI) was significantly lower (P<0.05) in starved fish compared to C. Meanwhile, muscle crude protein and lipid content in 2DD2DRF, and 2DD3DRF groups was significantly lower (P<0.05) compared to C and 2DD4DRF group. Compensatory growth response in 2DD4DRF presents possibilities for economic optimization in O. mossambicus production.

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“…A proximal to distal gradient of intestinal morphology and function has been noted for fishes, amphibians, reptiles, birds and mammals Secor and Diamond, 2000;Witmer and Martinez del Rio, 2001;Krogdahl and Bakke-Mckellep, 2005;Secor, 2005a). For the Burmese python, evidence of these gradients include a 37%, 51% and 39% decline, respectively, in the wet mass, APN activity and maltase activity for segment E compared with segment A.…”

Section: Temporal Variation In Intestinal Functionmentioning

confidence: 96%

Matched regulation of gastrointestinal performance in the Burmese python,Python molurus

Cox

Secor

2008

Journal of Experimental Biology

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SUMMARYIn Burmese pythons fasting and feeding cause dramatic regulation of gastric acid production and intestinal nutrient uptake. Predictably, other components of their gastrointestinal tract are similarly regulated with each meal. We therefore assessed the matched regulation of gastrointestinal performance by comparing the postprandial activities and capacities of gastric (pepsin), pancreatic (amylase and trypsin) and intestinal (aminopeptidase-N and maltase) enzymes, and intestinal nutrient uptake. Tissue samples were collected from pythons fasted and at 0.25, 0.5, 1, 2, 3, 4, 6, 10 and 15·days following their consumption of rodent meals equaling 25% of snake body mass. With feeding, pythons experience no significant change in stomach mass, whereas both the pancreas and small intestine doubled in mass. Feeding also triggered a depletion of gastric mucosal pepsinogen, a respective 5.7-and 20-fold increase in the peak activities of pancreatic trypsin and amylase, and a respective 2.3-and 5.5-fold increase in the peak activities of intestinal maltase and aminopeptidase-N. Enzyme activities peaked between 2 and 4·days postfeeding and returned to fasting levels by day·10. Independent of digestive stage, python intestine exhibited a proximal to distal decline in enzyme activity. For both sugars and proteins, intestinal capacities for enzyme activity were significantly correlated with nutrient uptake capacities. The concomitant postprandial upregulation of tissue morphology, intestinal nutrient transport rates and enzyme activities illustrate, for the python, the matched regulation of their gastrointestinal performance with each meal.

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Fasting and refeeding cause rapid changes in intestinal tissue mass and digestive enzyme capacities of Atlantic salmon (Salmo salar L.)

Cited by 178 publications

References 25 publications

Physiological responses to starvation in the European eel (Anguilla anguilla): effects on haematological, biochemical, non-specific immune parameters and skin structures

Physiological responses to starvation in the European eel (Anguilla anguilla): effects on haematological, biochemical, non-specific immune parameters and skin structures

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Matched regulation of gastrointestinal performance in the Burmese python,Python molurus

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