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Nutritional evaluation of varying protein: energy ratios in feeds for Indian white shrimp Penaeus (Fenneropenaeus) indicus

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Relation http://eprints.cmfri.org.in/5730/
http://www.asianfisheriessoceity.org
 
Title Nutritional evaluation of varying protein: energy ratios in feeds for Indian white shrimp Penaeus (Fenneropenaeus) indicus
 
Creator Vijayagopal, P
Babu Philip, M
Sathianandan, T V
 
Subject Fish Nutrition
Biochemistry
Prawn and Prawn fisheries
 
Description Six experiments of six weeks duration were conducted in controlled conditions in the
Indian white shrimp Fenneropenaeus indicus early juveniles (~0.040 mg initial weight). A common
ingredient mixture (CIM) consisting of albumin (chicken egg), fish meal, shrimp meal, clam meal
and deoiled ground nut oil cake was formulated and incorporated in all feeds at varying levels to
obtain the requisite protein: energy combinations. Eight feeds tested in each experiment were
formulated by incorporating CIM, cellulose (filler), tapioca flour (starch, binder), oil, mineral
mixture, vitamin mixture and other additives viz., cholesterol and lecithin. The six protein levels
fixed were 250 g kg-1 to 500 g kg-1 with 50 g kg-1 increments for each experiment. The gross
energy (GE) levels in the eight dietary treatments for each level of protein varied from 290 kcal
100g-1 to 430 kcal 100g-1 and the digestible energy levels varied from198 – 300 kcal 100g-1.
Growth, relative growth rate (RGR), absolute growth rate (AGR), food conversion efficiency
(FCE), food conversion ratio (FCR), survival and initial and final body composition were monitored
and analysed. One-way analysis of variance (ANOVA) followed by comparison of means was
done to examine statistically significant differences between treatments and second degree
polynomial regression of the from y = a + bx + cx2 was fitted with the data for RGR on P/E ratio
(mg protein kcal-1), RGR on GE and RGR on DE to derive the optimum RGR, GE, DE and P/E.
The results showed that growth of shrimp was highest with 450 g kg-1 protein and 363 kcal 100g-
1 GE, 276 kcal 100g-1 DE with a P/E of 124. Theoretical optima derived confirmed this observation
with optimal values of 360 kcal 100g-1 GE, 275 kcal 100g-1 DE and a P/E ratio of 125. However,
similar response in growth with feeds containing 350 - 450 g kg-1 protein indicating GE requirement
of 362 – 371 kcal 100g-1 and DE requirement of 262 – 276 kcal100g-1 suggested a protein sufficiency
of 350 g kg-1 with a P/E ratio of 98- 103 without major variations in the whole body composition.
 
Publisher Asian Fisheries Soceity; Malaysia
 
Date 2009
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5730/1/3.pdf
Vijayagopal, P and Babu Philip, M and Sathianandan, T V (2009) Nutritional evaluation of varying protein: energy ratios in feeds for Indian white shrimp Penaeus (Fenneropenaeus) indicus. Asian Fisheries Science, 22 (1). pp. 85-105.