Effect of dietary protein content on growth rate, survival and body composition of juvenile cauque river prawn,Macrobrachium americanum(Bate 1868)

Abstract

We determined the effect of four concentrations of dietary crude protein, 30.7, 37.2, 41.8 and 46.8% on growth rate, survival and body composition of the juvenile cauque river prawn (Macrobrachium americanum). The prawns were hatched in the laboratory from the spawn of one wild ovigerous female. Prawns consuming 37.2% crude protein reached a final weight of 0.58 g (feed conversion ratio of 2.15), which was significantly better than the other treatments. Survival was 100% in all treatments. Protein content in the diets had no significant effect on whole body proximate composition and amino acid profile. Juveniles consuming the 37.2% crude protein diet grew faster than those fed the other diets. Specific growth rate was adjusted to the two-slope broken-line regression analysis model to estimate the optimal protein requirement. In conclusion, these results demonstrated that the 37.2% protein level diet is optimal for juvenile cauque river prawn M. americanum in the experimental conditions of this study.

Effects of different dietary lipids concentrations on the egg production and egg quality produced by Macrobrachium acanthurus females

“…However, the information regarding the nutrient requirements for this species is almost unknown to develop a diet. The protein requirements are, by far, the most studied nutrient for species of Macrobrachium distributed in Mexico Ponce-Palafox, 2014; Villafuerte et al, 2016;Méndez-Martínez et al, 2017). The dietary lipids, on the contrary, have not received so much attention, despite to be an essential nutrient and energy source, particularly during the maturation and reproductive stages of females (Harrison, 1990;Wouters et al, 2001).…”

The effect of background colour and lighting of the aquarium on the body pigmentation of the peppered shrimp Lysmata wurdemanni

“…The effect of the treatments was determined as a function of the survival (S = (final number of shrimp/initial number of shrimp) × 100) and weight gain (PG = (final weight–initial weight/initial weight) × 100) (Méndez‐Martínez et al, ). In addition, individual digital photographs were taken with a D3100 camera (Nikon Imaging Japan Inc, Tokyo, Japan) and an 18–55 mm lens, under the same illumination conditions (f/5.6, 1/200 s, ISO‐400).…”

Spermatophore production and sperm quality of the river prawn Macrobrachium americanum Spence Bate, 1868 fed with different diets

“…The river prawn Macrobrachium americanum (Spence‐Bate, 1868) is a large freshwater caridean species with high commercial aquaculture potential (García‐Guerrero, Becerril‐Morales, Vega‐Villasante, & Espinosa‐Chaurand, ; Méndez‐Martínez et al, ; New & Nair, ). River prawn is locally marketed in Guatemala, El Salvador (Díaz‐Monge, Díaz‐Montt, & Rodríguez‐Ruíz, ) and in several regions of the Pacific coast of Mexico.…”

“…Recent investigations have focused mostly on production and nutrition of M . americanum juveniles (García‐Guerrero & Apún‐Molina, ; Méndez‐Martínez et al, , ; Pérez‐Rodríguez et al, ; Soberanes‐Yepiz et al, ; Yamasaki‐Granados et al, ). One of the main problems for the successful implementation of aquaculture of this river prawn is the typically low larval survival rate under culture conditions (Yamasaki‐Granados et al, ).…”