Nutritional Evaluation of Soybean Meal for Rainbow Trout and Carp.

Abstract

The nutritional quality of commercial defatted soybean meal (SBM) as a protein source was evaluated by determining apparent digestibility, PER, NPU, and BV. Two experiments were conducted using rainbow trout and carp with initial weights of 4.0 and 3.2g, respectively. They were fed diets containing SBM as the sole protein source at different protein levels from 0 to 75% for 20 days.The apparent protein digestibility was relatively high both in rainbow trout (92% on average) and in carp (91% on average). The PER, NPU, and BV values did not differ markedly between rainbow trout and carp, and generally decreased in proportion to increasing dietary protein levels. The PER, NPU, and BV values ranged between 1.8-4.3, 27.8-42.1, and 30.1-46.2 for rainbow trout, and 2.2-3.5, 32.9-37.4, and 36.0-42.2 for carp, respectively, at dietary protein levels of 11.0 to 33.6%. Growth and feed efficiency were relatively low in both species, which might be attribut able to an inadequate amino acid profile of this protein meal. The body composition of neither species was greatly influenced by dietary protein levels.

Use of Soybean as Partial Substitute of Fish Meal in the Diets of Rohu, Labeo rohita (Ham.) fry

“…Khan et al (2012) reported that incorporation of plant protein by replacing fishmeal did not have a significant effect on the whole body composition of Indian major carps, Catla catla, Labeo rohita and Cirrhinus mrigala. Similarly, Pongmaneerat and Watanabe (1993) reported use of soybean meal as the sole protein source, the body protein content of carps was not greatly influenced.…”

Farelo de soja na alimentação de alevinos de jundiá (Rhamdia quelen)

“…Além disso, está disponível nos mercados mundiais a um custo relativamente baixo comparando-se à farinha de peixe (FERNANDES, 1998). PONGMANEERAT & WATANABE (1993) trabalharam com alevinos de carpas (Cyprinus carpio) e trutas (O. mykiss) concluindo que o farelo de soja constitui-se em boa alternativa como fonte protéica para ambos, porém salientam que existe a necessidade de suplementação de lisina, arginina, cistina e triptofano. Já para o bagre norte-americano (Ictalurus punctatus), WILSON (1984) salienta que a proteína da soja não é deficiente em qualquer aminoácido essencial.…”

Utilization of Feather Meal as a Protein Source in the Diet of Juvenile Japanese Flounder

“…In Japan, an alternative protein source for fish meal has been the focus of attention in recent years because of falling catches of sardine which are the main ingredients in the diet, and studies on substitutional protein sources have been started with the yellowtail. 1-7) Many papers have been written on substitutional protein sources with various kinds of fish such as rainbow trout, [8][9][10][11][12] carp, 13-16) tilapia, 17,18) and catfish. 19,20) However, in formation on flatfish is scarce.…”