Effect of Replacing Fishmeal with Plukenetia volubilis Cake on Growth, Digestive Enzymes, and Body Composition in Whiteleg Shrimp (Litopenaeus vannamei)

Abstract

A feeding trial was carried out on a shrimp farm located in the Santa Rosa province of El Oro, Ecuador, with four isonitrogenous and isolipidic experimental diets, designed with increasing levels of substitution of fish meal by P. voluvilis, (D-0), 15% (D-15), 25% (D-25), and 50% (D-50). The obtained results indicated that the 50% replacement with P. volubilis in practical diets had no noticeable negative effects on the growth performance of L. vanameii juveniles. The total weight of shrimps fed with 25% and 50% diets (16.04 g and 16.72 g, respectively) and the abdomen weight (10.32 g) of shrimps fed with the D-50 diet were high, with significant differences regarding those fed with the D-0 diet. No adverse effects on muscle composition were found. Significant differences were observed only in groups D-25 (for chymotrypsin) and D-50 (chymotrypsin and alkaline protease). Trypsin and amylase activity was not affected by the inclusion of P. volubilis. The results of this experiment indicated that P. volubilis cake is a possible alternative to fish meal in shrimp feeding; however, it should be studied in more depth to establish the maximum replacement percentage and to identify the adequate treatments to eliminate antinutritional factors.

Partial Replacement of Fishmeal with Seafood Discards for Juvenile Penaeus japonicus: Effects on Growth, Flesh Quality, Chemical and Fatty Acid Composition

“…The SGR rate was significantly greater following the 50 and 75% replacement level diet (p < 0.05) as compared to the 25% group. The same results are described by Renteira et al [4], who studied the effect of replacing fishmeal with Plukenetia volubilis cake at different levels, and by Ambankar et al [13].…”

“…In the present study, the n-3/n-6 ratio was lower than this value in all the experimental groups. 2 Total SFA-saturated fatty acids (C12:0 + C14:0 + C16:0 + C17:0 + C18:0 + C20:0); 3 Total MUFA-monounsaturated fatty acids (C16:1 n7 + C16:1 n9 + C18:1 n9+ C20:1 n9); 4 Total PUFApolyunsaturated fatty acids (n-6 + n-3); 5 Total n-6 (C18:2 n6 + C18:3 n6 + C20:4 n6 + C22:5 n6); 6 Total n-3 (C18:3 n3 + C20:5 n3 + C22:5 n3 + C22:6 n3); Means having different superscripts within the row are significantly different; a, b : p < 0.05. Likewise, the concentration of C20:1n-9 was significantly (p < 0.05) higher following the control and 25% fishmeal replacement diet, while the percentage of total monounsaturated fatty acids (MUFAs) did not differ among groups.…”

“…The shrimp aquaculture industry has grown rapidly in recent decades and represents the most important aquaculture sector in Europe [1,2]. Consumer shrimp demand has increased in recent decades, leading fish nutrition experts to study the inclusion of vegetable by-products in aquatic animal feeding [3][4][5]. Penaeus japonicus, kuruma shrimp, is one of the major shrimp species farmed in the seas [6] that is used in the human diet since, like other shrimp species, it is highly appreciated from a gastronomic point of view as it is a good source of macronutrients (proteins and, particularly, essential amino acids) and vitamins and minerals (such as vitamin B12, iron, calcium and zinc) [7].…”

Potentially toxic element bioaccumulation in consumed indoor shrimp farming associated with diet, water and sediment levels

“…1 ) and pointed out different behaviours for PTEs in shrimps in accordance with the evaluated body part. The tendency to accumulate PTEs is often associated with the species biometric parameters (Sánchez-Muros et al 2018 ; Ramos-Miras et al 2019 ; Sofoulaki et al 2018 ; Renteria et al 2022 ). From this point of view, we analysed the PTE relation in muscle and head tissues versus the biometric indices.…”