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Comparative Study of Mustard Oil Cake and Soybean Meal Based Artificial Diet for Rohu, Labeo Rohita (ham.) Fingerlings

D. A. Jahan
Bangladesh Fisheries Research Institute (BFRI), Freshwater Station, Mymensingh-2201

L. Hussain
Dept. of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202

M. A. Islam
Dept. of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202

M. Khan
Bangladesh Fisheries Research Institute (BFRI), Freshwater Station, Mymensingh-2201

Abstract/ Executive Summary:

An experiment was conducted to evaluate the nutritive potential of soybean meal and mustard oil cake based diets for rearing of Labeo rohita fingerlings under pond condition at the Bangladesh Agricultural University, Mymensingh during 2008. Three diets designated as treatments were formulated and fed to the stocked fingerlings. Studies have revealed an increase in final weight, average live weight gain, specific growth rate (SGR), lower food conversion ratio (FCR), protein efficacy ratio (PER) and apparent net protein utilization (ANPU%) and survival of fingerlings fed on diet D₃, a soybean meal based diet. Carcass composition also revealed high protein and lipid in fish fed on the diet D₃.

Keywords: Mustard oil cake, Soybean meal, Labeo rohita

Location: Field Laboratory Complex, Faculty of Fisheries, Bangladesh Agricultural University, Mymonsingh

Start Date: 00-00-2008

End Date: 00-00-2008

Program Area: Animal Health and Management

Commodity: Carp fish

Objectives:

To address the nutritive potential of soybean meal based diets compared
To mustard oil cake based diets on the growth of L. rohita fingerlings.

Methodology:

The experiment was conducted in 9 earthen ponds for a period of 60 days in the Field Laboratory Complex of the Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh during 2008. The area of each pond was 60 m². The experimental design was CRD. Three treatments each with three replications were designed to evaluate the nutritional potential of the formulated diets. The ponds were drained out completely and were then exposed to sunlight for three days; treated with lime at the rate of 250 kg ha^-1 and left for 3 days. Organic and inorganic fertilizers such as cowdung, urea and triple super phosphate were applied at the rate of 1000, 25 and 25 kg ha^-1, respectively for pond fertilization as a basal dose. After the fingerling stocking, 50% of the basal dose was applied at every 15 days interval throughout the experimental period. After pond preparation the fishes (2.80 g ± 0.01) were stocked at a density of 75,000 ha^-1. The conventional mixture of mustard oil cake and rice bran in equal proportion (50:50) was used as the control diet (D₁) whereas diet D₂ consisted of mustard oil cake, soybean meal and rice bran (25:25:50) and diet D₃ consisted of soybean meal and rice bran (50:50). Prior to prepare pellet feed, all the ingredients were finely powdered, mixed and then sieved. Proximate compositions of the ingredients used in the formulated diets and the experimental diets. Fishes were fed at the rate of 3% of their body weight for initial 5 days, followed by 5% in the subsequent days of the culture period. Feeding was done by broadcasting the mixture in two installments, 50% in the morning (7-8 am) and the rest 50% in the afternoon (3-4 pm). All data collected were subjected to one-way analysis of variance (ANOVA) followed by Duncan’s multiple range tests to test the difference between means. Standard deviation (±SD) was calculated to identify the range of means.

Source of Information: The Agriculturists 11(1): 61-66 (2013) ISSN 2304-7321 (Online), ISSN 1729-5211 (Print), A Scientific Journal of Krishi Foundation

Article Link (Online Journal): http://banglajol.info/index.php/AGRIC/article/view/15244/10807

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The result of the present study indicates that mustard oilcakes gave lower growth and poorer food conversion ratio compared to soybean based diets. The use of soybean meal (up to 50%) might be advantageous for rearing of carp fingerlings.

Knowledge Management: Journal