Effect of starvation and refeeding on digestive enzyme activities in sturgeon (Acipenser naccarii) and trout (Oncorhynchus mykiss).
The digestive enzyme activities were determined in Adriatic sturgeon and rainbow trout during starvation and refeeding period. Overall, the digestive enzyme activities are affected in the same sense in both species. The protease and lipase activities were decreased later than amylase activity. Even after 1 month of starvation, both species would be prepared to digest protein and lipids in an effective way. After 72 days of starvation, the digestive machinery of the sturgeon and of the trout shows an altered capacity to digest macronutrients. The capacity to digest proteins and lipids, after 60 days of refeeding, begins to become re-established in sturgeon and trout. In contrast, in this period, the capacity to digest carbohydrates remains depressed in both species.
Furné
Miriam
M
Department Biología Animal, Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva, 18071 Granada, Spain.
García-Gallego
Manuel
M
Hidalgo
M Carmen
MC
Morales
Amalia E
AE
Domezain
Alberto
A
Domezain
Julio
J
Sanz
Ana
A
D000681:Amylases / Q000378:metabolism; D000818:Animals; D004040:Dietary Carbohydrates / Q000378:metabolism; D004063:Digestion / Q000502:physiology*; D005508:Food Deprivation; D008049:Lipase / Q000378:metabolism; D008066:Lipolysis; D017686:Oncorhynchus mykiss / Q000378:metabolism*; D010447:Peptide Hydrolases / Q000378:metabolism; D019518:Postprandial Period / Q000502:physiology*; D011506:Proteins / Q000378:metabolism; D020127:Recovery of Function; D013217:Starvation / Q000201:enzymology* / Q000503:physiopathology; D014337:Trout / Q000378:metabolism*
D004040:Dietary Carbohydrates; D011506:Proteins; D008049:Lipase; D000681:Amylases; D010447:Peptide Hydrolases