EFFECT OF BINDING MATERIALS, FEEDING RATE AND DIE PROFILE ON AQUATIC PELLETS QUALITY USING RING-DIE PELLETING MACHINE | ||
| Misr Journal of Agricultural Engineering | ||
| Article 6, Volume 29, Issue 1, January 2012, Pages 101-116 PDF (598.98 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2012.102567 | ||
| Authors | ||
| M.I. Radwan1; A.M. El Shal2 | ||
| 1Researcher, Agric. Eng., Central Lab. for Aquaculture Res., Agric. Res. Cent.., Egypt. | ||
| 2Lecturer, Agric. Eng. Dept., Fac. of Agric., Zagazig Univ., Egypt. | ||
| Abstract | ||
| The overall goal of the present study isto investigate the effectof using binding materials, feeding rate and die profile on aquatic pellets quality using ring-die pelleting machine to produce a strong and durable aquatic pelleted feeds with lowest specific energy consumption. Three feed blends containing 30% protein were formulated with the same concentrate level of each starch, gelatin and molasses of 3% as a binding material instead of fish meal (FM) along with appropriate concentrate levels of soybean meal, corn flour, mix of vitamin and mix of mineral and pelleted in a ring-die pelleting machine. The ring-die pelleting machine was evaluated under the same concentrate levels of replacement percentage of binding materials in feed formula, feeding rate (70, 100 and 125 kg/h) and two types of forming unit of die profile (1) and die profile (2). Using constant values of die speed of 300 rpm, average ration moisture content of 17% (w.b). The evaluation included machine production rate, pelleting efficiency, specific energy consumption, pellets quality (durability, bulk density) and economical costs of aquatic feed pellets mass. The obtained data showed that, the highest values of machine productivity of 123.96 kg/h, , lowest specific energy consumption of 19.26 kW.h/Mg, the highest values of durability (92.68%) and pelleting efficiency of 98.67 % were recorded in the case of gelatin as binding material, die profile (1) and feeding rate of 125 kg/h. but the highest values of pellets bulk density (0.822 g/cm3) was recorded in the case of molasses as binding material, die profile (1) and feeding rate of 125 kg/h. | ||
| References | ||
|
ASAE. 1996. American society of Agricultural Engineers Standards- Engineering practices, and Data, ASAE standard book .
Bobohm, K-F., 1992. Adjustable roll gap. Benefits to energy demand throughout and pellet durability. Feed International. March, pp. 30-35.
Fasina,O.O, W.Wood, F.yucheng and M. German. 2004. Physical characteristics of Pellets from poultry litter. An ASAE/CSAE Annual International Meeting. Ottawa, Ontario, Canada, 1- 4 August. Paper No. 046005.
Gill. C., 1993. Chemistry for high quality pellets. Or refining the role of binders. Feed International, March, pp.10-11.
Heffner, L.E. and H.B . Pfost. 1973. Gelatinization during pelleting. Feedstuffs,45(23):32-33.
Ibrahim, M. K. 1982. Wet milling of wheat grain. M. Sc. Thesis, Faculty of Agric., Mansoura Univ.,Egypt.
Ouchiyama, N. and T. Tanaka 1985. Kinetic analysis of the compaction process of a pellet in granulation. 4th International Symposium on Agglomeration, Toronto, Canada, pp. 635-641.
Reece, F.N., Lott, B.D. and Deaton, J.W., 1986. Effects of environmental temperature and corn particle size on response of broilers to pelleted feed. Poultry Sci., 65: 636-641.
Skoch, E.R.,K.C. Behnke., C.W. Deyoe., and S.F. Binder. 1981. The effect of steam conditioning rate on the pelleting process. Anim. Feed sci. Tech. 6 :83.
Smith, P.S., 1983. Food starches and their uses. In: D.L. Downing (Editor), Gum and Starch Technology Eighteenth Annual Symposium. New York State Agricultural Experiment Station, Geneva, pp. l-9.
Wood, J.F., 1987. The functional properties of feed raw materials and their effect on the production and quality of feed pellets. Anim. Feed Sci. Technol., 18: 1-17. | ||
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