Evaluation of practical diets containing different protein levels on gonad development of female redclaw crayfishCherax quadricarinatus

Abstract

The effect of five experimental diets with different crude protein content (220, 270, 330, 390 and 450 g kg )1 ) on gonad development of female Cherax quadricarinatus was tested under laboratory conditions. After 70 days, a significant linear relationship indicated that higher concentrations of protein and carbohydrates in the hepatopancreas were produced as the dietary crude protein increased (P < 0.05). There were significant responses of the gonadosomatic index, hepatosomatic index, biochemical composition of the gonad (protein, lipids, carbohydrates and energy) and frequency of secondary vitellogenic oocytes to dietary protein level, as indicated by significant fits of the quadratic equation to the observed experimental data. The optimal response of the criteria parameters corresponded to levels of crude protein in the range 284-355 g kg )1 . Overall, 330 g kg )1 crude protein with a protein : energy ratio of 15.6 mg kJ -1 was considered the most adequate concentration of dietary protein for gonad development and biochemical composition in female redclaw crayfish. KEY WORDS

Effect of dietary protein and lipid levels on gonadal development of female redclaw crayfishCherax quadricarinatus

“…Similar to previous reports (Rodríguez‐González et al . ), in this study, females fed diets containing the higher protein content (32%) accumulated more protein in the gonad. An increase in protein content in the gonad of female redclaw crayfish is attributed to active mobilization of energy reserves from exogenous sources to the gonad and their introduction to the oocyte by endocytosis (Abdu et al .…”

“…Previous studies have shown that diets with 26–33% P and 8% L optimized growth and survival during juvenile (Cortés‐Jacinto, Villarreal‐Colmenares, Cruz‐Suárez, Civera‐Cerecedo, Nolasco‐Soria & Hernandez‐Llamas ) and pre‐adult stages of the redclaw crayfish (Cortés‐Jacinto, Villarreal, Civera‐Cerecedo & Naranjo‐Páramo ). A dietary protein level of 32% has been recommended for gonad development (Rodríguez‐González, Villarreal‐Colmenares, García‐Ulloa & Hernández‐Llamas ) and reproduction of female redclaw crayfish Rodríguez‐González, García‐Ulloa, Hernández‐Llamas, & Villarreal, ). The objective of this study was to define the effect of different dietary protein and lipid concentrations on gonad maturation of the female C. quadricarinatus .…”

Effects of dietary protein at two lipid levels on growth, gonadal development, body composition and liver metabolic enzymes of brown trout (Salmo trutta fario) broodstock

“…Maternal provision of nutrients is important for the development of the embryo and plays a significant role in offspring performance (Carboni, Hughes, Atack, Tocher, & Migaud, ; Izquierdo, Fernandezpalacios, & Agj, ). During ovarian development, dietary and maternal reserves are mobilized and transported into the oocytes (Rodríguez‐González, Villarreal, García‐Ulloa, & Hernández‐Llamas, ), where they provide energy and nutritional requirements for the growth and development of the embryos and yolk‐sac larvae until the start of exogenous feeding (Rodríguez‐González et al., ). Although the basic nutritional requirement such as protein (Arzel, Metailler, Huelvan, Faure, & Guillaume, ; Arzel, Metailler, Kerleguer, Le Delliou, & Guillaume, ; Arzel, Metailler, Le Gall, & Guillaume, ) and lipid (Arzel et al., ; Regost, Arzel, Cardinal, Laroche, & Kaushik, ; Turchini et al., ) of brown trout during the grow‐out period has been previously established, the dietary requirements of broodstock reared in freshwater for optimal production and reproductive performance are yet to be determined.…”

Factors affecting the reproductive efficiency in crayfish: implications for aquaculture

“…In another study, Rodríguez‐González, Villarreal, García‐Ulloa and Hernández‐Llamas () obtained better gonad development in 33% crude protein with a protein: energy ratio of 15.6 mg kJ −1 diet for female C. quadricarinatus . In addition, Carmona‐Osalde, Olvera‐Novoa and Rodríguez‐Serna () reported similar results for another crayfish species, Procambarus llamasi .…”