Effect of dietary Chitin on Digestive Enzyme Activity, Growth, and Survival of Macrobrachium tenellum Juvenile Prawns

Rodolfo Benigno de los Santos-Romero, Marcelo Ulises García-Guerrero, Fernando Vega-Villasante, Héctor Nolasco-Soria

Submited: 2016-03-31 02:28:52 | Published: 2017-03-08 13:29:31

DOI: https://doi.org/10.3856/vol45-issue1-fulltext-12

Abstract


Macrobrachium tenellum is a freshwater prawn native from Mexico to Peru, with potential for cultivation. Currently, it is extensively exploited by local fisheries. To understand its chitin requirements, a formulated diet with chitin added (5, 10 15, 20, and 25%) was given to juveniles for 60 days. Growth, survival, and enzyme activity (trypsin, chymotrypsin, lipase, amylase, and chitinase) were measured every 15 days. Highest final weight and specific growth rate resulted from diets with 20% chitin. Poorest performance resulted from diets with 5 and 10% chitin. Chitin in the diet did not have a significant effect on survival. Statistically significant differences in enzyme activity were not found in any treatment.

de los Santos-Romero R, García-Guerrero M, Vega-Villasante F, Nolasco-Soria H. Effect of dietary Chitin on Digestive Enzyme Activity, Growth, and Survival of Macrobrachium tenellum Juvenile Prawns. Lat. Am. J. Aquat. Res.. 2017;45(1). Available from: doi:10.3856/vol45-issue1-fulltext-12 [Accessed 20 Jan. 2019].
de los Santos-Romero, R., García-Guerrero, M., Vega-Villasante, F., & Nolasco-Soria, H. (2017). Effect of dietary Chitin on Digestive Enzyme Activity, Growth, and Survival of Macrobrachium tenellum Juvenile Prawns. Latin American Journal of Aquatic Research, 45(1). doi:http://dx.doi.org/10.3856/vol45-issue1-fulltext-12