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Asian Catfish Fry (clarias Batrachus) Rearing with Wheatgrass Powder Mixed Formulated Feed in Plastic Half Drum

Tanushri Deb Nath
Department of Aquaculture Bangladesh Agricultural University, Mymensingh-2202

M. A. Salam
Department of Aquaculture Bangladesh Agricultural University, Mymensingh-2202

Shaharior Hashem
Department of Aquaculture Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

Wheat grass is highly nutritive and a source of vitamins, minerals, protein, lipid, enzymes and antioxidant. Therefore, an experiment carried out with formulating diet using wheat grass powder (Triticum aestivum) to compare the growth performances of Asian catfish magur fry (Clarias batrachus) with commercial pellet feed for a period of 113 days from 12th September 2012 to 19th January 2013 in the Department of Aquaculture, Bangladesh Agricultural University, Mymensingh. In the experiment, there were two treatments T₁ and T₂ and each treatment carried out with two replicates. An average initial length and weight of magur fry was 6.03 (±0.64) and 5.68 (±0.48) cm and 2.09 (±0.56) and 1.75 (±0.41) g in T₁ and T₂ respectively. After 113 days of rearing the mean length gain of magur fry was 1.31 and 1.93 cm, mean weight gain 1.02 and 2.61 g, percent weight gain 48.68 and 149.31, SGR 0.298 and 0.808, FCE 0.01 and 0.04, survival rate 83.33 and 36.67% and fish production 382.11 and 222.08 kg/ha in T₁ and T₂ respectively. The production and survival rate was significantly higher in the treatment T₁. However, FCR was very high in the experiment. The present study suggests that along with the vitamins, minerals and protein the wheat grass powder has some special properties which protected the fry from cold shock and death. Further in depth study need to be carried out to verify the result.

Keywords: Asian catfish, Wheat grass, Growth performance and Survival rate.

Location: Bangladesh Agricultural University, Mymensingh.

Start Date: 12-09-2012

End Date: 19-01-2013

Program Area: Animal Health and Management

Commodity: Feed

Objectives:

To compare the growth performances of Asian catfish magur fry (Clarias batrachus) fed with formulating diet using wheatgrass powder (Triticum aestivum) and commercial pellet feed for a distinct period

Methodology:

Site and duration of experiment: The experiment was carried out in the Department of Aquaculture, Bangladesh Agricultural university, Mymensingh. The study conducted for a period of 4 months from 12th September 2012 to 19th January 2013. Magur fry collection and acclimatization: The Asian catfish fry was collected from the Sharnolota AgroFisheries, Fulbaria, Mymensingh with oxygenated poly bag and gunny bags. During the period of acclimatization, adequate oxygen supply was ensured and fish were fed finely ground compound pellet feed containing 35% protein twice daily at 9 am and 5 pm. Experimental design: The experiment started on 29th September 2012. Four plastic half drum of 90 L capacity containing 70 L water was used as experimental tanks. In this experiment there were two treatments T₁, T₂ and each treatment conducted with two replications R₁, R₂. For convenience the tanks were numbered as T₁R₁, T₁R₂, T₂R₁, T₂R₂, and allocated randomly. The fry of C. batrachus released at a rate of 15 fish per tank. The fish were fed with formulating diet using wheat grass powder and commercial diet as control. The uneaten feed and faces removed twice daily through siphoning. Preparation of wheat grass powder: For production of wheat grass, at first ½ kg wheat seed were taken. Then it was washed properly and soaked with water for overnight. One pinch of salt was added to the water to have better germination. Then it was kept in water for 12 hours. In the following morning the wheat was sieved and kept in a cotton bag for 24 hours. After that a layer of soil was taken into a perforated plastic tray and the wheat seed spread over it. Then watered over the tray and covered it for 3-4 days, during these the trays watered once to twice to maintain good moist condition in the tray. When the seedlings become one to two inches in 3-4 days the uncovered and keep spraying water over it for twice daily. After 8-9 days the wheat grass become dark green and 6-8 inches long and cut the stem and make a powder with a blender after drying in micro oven and used in the fish feed. Feed preparation: The ingredients were mixed well and water was added to make the mixture moisten. This resultant dough was then passed through a 1.0 mm mesh size hand pelleting machine. The resultant pellets were then sun dried. The feed then stored in airtight plastic bags in the fridge and used during feeding the fry. Feeding rate and methods: Fish were fed experimental diets twice daily in the morning at 9 am and afternoon at 5 pm. Fishes in the tank were fed experimental diets at the rate of 10% of their body weight and checked regularly whether the feed was consumed or not. Fish and water quality sampling: Fish and water quality parameters were sampled every 15 days interval. The fish was caught by the hand held scoop net. Ten fishes were caught randomly from each tank and length and weight of the individual fish were measured carefully using a scale and electric balance. Growth parameters: The following parameters were used to evaluate the growth performances of magur fry: Length gain: Length gain (cm) = mean the final length (cm) – mean initial length (cm) Weight gain: Weight gain (g) = mean final weight (g) - mean initial weight (g)

Source of Information: International Journal of Fisheries and Aquatic Studies 2014; 1(5): 162-168

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Wheat grass powder can be used as a fish feed ingredient during the nursery stage for better growth and high survival rate of the fish in the future along with the higher protein percentage.

Knowledge Management: Journal