The Nitrogenous Metabolism of the Earthworm
نویسندگان
چکیده
Negligible amounts of urea were excreted by fresh’ earthworms &urnbricus terrestris) ; however, on fasting, the quantity of urea in the excreta increased.notably (1). The oral administration of arginine was followed by an increased elimination of urea. The excretion of urea was also augmented, to a lesser extent, by the ingestion of citrulline with certain other amino acids. The data presented here were obtained in an attempt to clarify the mechanism of urea synthesis in the earthworm by studies in vitro. Arginase has been found to occur in the intestinal tissue of the earthworm and to be present in increased amounts in fasted animals.
منابع مشابه
The nitrogenous metabolism of the earthworm (Lumbricus terrestric). II. Arginase and urea synthesis.
Negligible amounts of urea were excreted by fresh’ earthworms &urnbricus terrestris) ; however, on fasting, the quantity of urea in the excreta increased.notably (1). The oral administration of arginine was followed by an increased elimination of urea. The excretion of urea was also augmented, to a lesser extent, by the ingestion of citrulline with certain other amino acids. The data presented ...
متن کاملPotential of earthworm (Eisenia foetida) as dietary protein source for rohu (Labeo rohita) advanced fry
Earthworm, a non-conventional protein source with 520–530 g protein kg−1 on dry matter basis was used in three forms viz. (i) whole earthworm (ii) earthworm custard, and (iii) pelleted earthworm diet to prepare three iso-nitrogenous (500 g protein kg−1 diet) and iso-caloric (17.0 MJ kg−1 diet) experimental diets. The formulated diets were fed ad libitum twice daily to Labeo rohita advanced fry ...
متن کاملP-133: Effects of Dietary Earthworm (Eisenia Fetida) Meal and Ethanolic Extract
Background: Avian spermatozoa are characterized by high proportions of poly unsaturated fatty acid, associated with increased susceptibility to Reactive Oxygen Species and lipid peroxidation. Recent advances in poultry reproduction have focused on the potential of Reactive Oxygen Species as one of the prime mediators of infertility. Oxidative stress is the result of imbalance between the Reacti...
متن کاملGrowth Performance, Blood Metabolites and Jejunum Morphology of Broiler Chickens Fed Diets Containing Earthworm (Eisenia foetida) Meal as a Source of Protein
Objective: The protein quality of earthworm meal was evaluated and compared to that of soybean meal (SBM) in two experiments using broiler chicks. Methods: The protein quality of earthworm meal was evaluated and compared to that of soybean meal (SBM) in two experiments using broiler chicks. Results: The results of experiment 1 indicated that there were no significant differences between earthw...
متن کامل