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Impact of Different Stocking Density on Productive and economic Performance of Broiler Chickens


Saman Abdulmajid Rashid, Shilan Aram Akram & Shahla Mohammed Saeed Kirkuki

Animal Production Department, Faculty of agricultural Sciences, university of Sulaimani

DOI: https://doi.org/10.17656/jzs.10584

Abstract
The present study was conducted at the poultry farm of Faculty of Agricultural Sciences, University of Sulaimani in Bakrajo from 8/1/2015 to 20/2/2015. Ninety eight one-day old broiler chicks were distributed on three stocking densities to study broiler performance and economic index. Three treatments of stocking densities: T1, T2 and T3 were respectively as follow (8, 12 and 16 birds/ m2) . Broiler chickens feed intake were taken on each pen at 1, 7, 14, 28, 35 and 42 days in addition to the daily record of body weight, average weight gain, average feed intake, average feed conversion ratio and viability. Body weight and average weight gain for males and females were weekly recorded. Values of European Broiler Index and European Production Efficiency Factor were calculated at 28 and 42 days of age. Body weight of birds did not significantly (p≤0.05) affected within different periods except at day (28) of age. Birds in T1 significantly (p≤0.05) showed higher body weight comparing with other treatments. Feed conversion ratio was significantly (p≤0.05) better for birds in T1 at all periods (1to 42) days of age than birds in T2 and T3. However, the average weight gain and feed intake did not significantly affected by different stocking densities at all periods. The body weight and weight gain of males were significantly (p≤0.05) higher than females at all periods except at one day old. The different stocking densities of broiler chickens were positively influenced the growth performance (body weight. European Broiler Index and European Production Efficiency Factor were numerically higher for T1 birds compared with other treatments.


Key Words:
stocking density, broiler performance, economic index, sex


References

[1] Estevez, I., "Density allowances for broilers: Where to set the limits?" Poult. Sci. Vol. 86, pp.1265–1272.

[2] Feddes, J. J. R.; E. J. Emmanuel and M. J. Zuidhof, "Broiler Performance, Bodyweight Variance, Feed and Water Intake, and Carcass Quality at Different Stocking Densities", Poultry Science Vol. 81, pp. 774–779. (2007).

[3] Bilgili, S.F. and J.B. Hess, "Placement density influences broiler carcass grade and meat yields". Journal of Applied Poultry Research, Vol. 4, pp. 384–389. (1995).

[4] Thomas, D. G.; V. Ravindran; D. V. Thomas; B. J. Camden; Y. H. Cottam; P. C. H. Morel and C. J. Cook, "Influence of stocking density on performance, carcass characteristics and selected welfare indicators of broiler chickens". N. Z. Vet. J. Vol. 52, pp. 76–81. (2004).

[5] Dozier, W. A.; J. P. Thaxton; S. L. Branton; G. W. Morgan; D. M. Miles; W. B. Roush; B. D. Lott and Y. Vizzier-Thaxton, "Stocking density effects on growth performance and processing yields of heavy broilers". Poult. Sci. Vol. 84, pp. 1332–1338. (2005).

[6] Dozier, W. A.; J. P. Thaxton; J. L. Purswell; H. A. Olanrewaju; S. L. Branton and W. B. Roush, "Stocking density effects on male broilers grown to 1.8 kilograms of body weight". Poult. Sci. Vol. 85, pp. 344–351. (2006).

[7] Sorensen, P.; G. Su and S.C. Kestin, "Effects of age and stocking density on leg weakness in broiler chickens". Poultry Science Vol. 79, pp. 864–70. (2000).

[8] Collins, L. M. and D. J. T. Sumpter, "The feeding dynamics of broiler chickens". J. R. Soc. Interface Vol. 4, pp. 65–72. (2007).

[9] Febrer, K.; T.A. Jones; C.A. Donnelly and M.S. Dawkins, "Forced to crowd or choosing to cluster? Spatial distribution indicates social attraction in broiler chickens". Animal Behaviour, Vol. 72, pp. 1291–1300. (2006).

[10] Puron, D.; R. Santamaria; J. C. Segaura and J. L. Alamilla, "Broiler performance at different stocking densities". J. Appl. Poult. Res. Vol. 4, pp. 55–60. (1995).

[11] Zuowei, S.; L. Yan; L. Yuan; H. Jiao; Z. Song;Y. Guo and H. Lin, "Stocking density affects the growth performance of broilers in a sex-dependent fashion". Poult Sci, Vol. 90, pp. 1406-1415. (2011).

[12] Castellini, C.; C. Berri, E. Le Bihan-Duval and G. Martino, "Qualitative attributes and consumer perception of organic and free-range poultry meat". World’s Poult. Sci. J. Vol. 64, pp. 500–512. (2008).

[13] Vanhonacker, F. and W. Verbeke, "Buying higher welfare poultry products? Profiling Flemish consumers who do and do not". Poult. Sci. Vol. 88, pp. 2702–2711. doi:10.3382/ps.2009-00259. (2009).

[14] Marcu, A., I. Vacaru-Opriş, G. Dumitrescu, L. P. Ciochină, A. Marcu, M. Nicula, I. Peţ, D. Dronca, B. Kelciov, and C. Mariş, "The Influence of Genetics on Economic Efficiency of Broiler Chickens Growth". Animal Science and Biotechnologies, Vol. 46, No. 2. (2013).

[15] Duncan, D.B., "Multiple Range and Multiple Test". Biometrics, Vol. 11, pp. 1-42. (1955).

[16] Buijs, S.; L. Keeling; S. Rettenbacher; E. Van Poucke and F. A. M. Tuyttens, Stocking density effects on broiler welfare: Identifying sensitive ranges for different indicators", Poultry Science, Vol. 88, pp. 1536–1543. (2009).

[17] Cravener, T. L.; W. B. Roush and M. M. Mashaly, "Broiler production under varying population densities". Poult. Sci. Vol. 71, pp 427–433. (1992).

[18] Elwinger, K., Broiler production under varying population densities–A field study". Arch. Geflügelkd. Vol. 59, pp. 209–215. (1995).

[19] Simitzis, P.E., E. Kalogeraki; M. Goliomytis; M.A. Charismiadou; K. Triantaphyllopoulos; A. Ayoutanti; K. Niforou; A.L. Hager-Theodorides And S.G. Deligeorgis, "Impact of stocking density on broiler growth performance, meat characteristics, behavioural components and indicators of physiological and oxidative stress", British Poultry Science Vol. 53, pp. 721—730. (2012).

[20] Tsiouris, V.; I. Georgopoulou; C. Batzios; N. Pappaioannou; R. Ducatelle and P. Fortomaris, High stocking density as a predisposing factor for necrotic enteritis in broiler chicks, Avian Pathology, Vol. 44, No. 2, pp. 59-66. (2015).

[21] Son, J. H., The effect of stocking density on the behavior and welfare indexes of broiler chickens". J. Agric. Sci. Technol. Vol. 3, pp. 307–311. (2013).

[22] Imaeda, N., "Influence of the Stocking Density and Rearing Season on Incidence of Sudden Death Syndrome in Broiler Chickens", Poultry Science Vol. 79, pp. 201–204. (2000).

[23] Ravindran, V. Feed enzymes: The science, practice and metabolic realities". Journal of Applied Poultry Research Vol. 22, pp. 628-636. (2013).

[24] Scahaw, The welfare of chickens kept for meat production (broilers). pp. 62–66 in European Commission: Health & Consumer Protection Directorate-General. http://ec.europa.eu/ food/fs/sc/scah/out39_en.pdf. (2000).