Evaluation of Growth Performance, Carcass Characteristics, Litter Quality and Foot Lesions of Broilers Reared under High Stocking Densities

Subject Areas : Camel

د.  فرهادی ¹ (Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran)
س.م.  حسینی ² (Khuzestan Agriculture and Natural Resources Research Center, Ahvaz, Iran)

Received: 2014-07-11 Accepted : 2014-11-15 Published : 2016-03-01

Keywords: Performance, litter, broiler chicken, foot lesion, stocking density,

Abstract :

Two repeated experiments were conducted to investigate the effects of different stocking densities onbroiler performance, carcass characteristics, litter quality and foot lesionsusing 5224 one day-old Ross 308 broilers. In each experiment, a total of 2612 one day-old broilers were allocated in 16 floor pens at densities of 16, 18, 20 and 22 birds/m2 of floor space in an environmentally controlled broiler house. Data collected from the two experiments were pooled together for statistical analysis. The results indicated that body weight gain significantly decreased with increasing stocking density (P<0.05). Density beyond 16 birds/m2 significantly decreased the body weight gain at 1 to 21 day of age and density beyond 20 birds/m2 significantly decreased the body weight gains at 22 to 42 day of age and in whole experimental period (P<0.05). Body weight gain expressed as kg BW/m2 increased linearly with increased stocking density (P<0.05). Treatments had no significant effects on feed conversion ratio, mortality rate, production efficiency index (PEI), carcass dressing measurements (carcass weight and relative weights of liver, abdominal fat, bursa of fabricius, spleen and parameters of the broiler litter (moisture, pH and ammonia level) (P>0.05). Foot pad lesions significantly increased as stocking density increased (P<0.05), but hock burns was not affected by increasing stocking density. In conclusion, based on the obtained results of this study, 20 birds/m2 of floor space was an appropriate density for rearing broilers in an environmentally controlled broiler house.

References:

Arnould C. and Faure J.M. (2003). Use of pen space and activity of broiler chickens reared at two different densities. Appl. Anim. Behav. Sci. 84, 281-296.

Bilgili S.F. and Hess J.B. (1995). Placement density influences broiler carcass grade and meat yields. J. Appl. Poult. Res. 4, 384-389.

Bilgili S.F., Hess J.B., Donald J. and Fancher B. (2010). Practical considerations for reducing the risk of pododermatitis. Aviagen Brief. 1, 1-8.

Buijs S., Keeling S., Rettenbacher S., Van Poucke S. and Tuyttens F.A.M. (2009). Stocking density effects on broiler welfare: Identifying sensitive ranges for different indicators. Poult. Sci. 88, 1536-1543.

Castellini C., Mugnai C. and Dal Bosco A. (2002). Effect of organic production system on broiler carcass and meat quality. Meat. Sci. 60, 219-225.

Chamblee T.N. and Yeatman J.B. (2003). Evaluation of rice hull ash as broiler litter. J. Appl. Poult. Res. 12, 424-427.

Coufal C.D., Chavez C., Niemeyer P.R. and Carey J.B. (2006). Nitrogen emissions from broiler measured by mass balance over eighteen consecutive flocks. Poult. Sci. 85, 384-391.

Cravener T.L., Roush W.B. and Mashaly M.M. (1992). Broiler production under varying stocking densities. Poult. Sci. 71, 427-433.

Czarick M. and Lacy M. (1990). Cooperative Extension Service. College of Agricultural and Environmental Science. Athens, Georgia.

Dawkins M.S., Donnelly C.A. and Jones T.A. (2004). Chicken welfare is influenced more by housing conditions than by stocking density. Nature. 427, 342-344.

Deaton J.W., Reece F.N. and Vardaman T.H. (1968). Effect of temperature and density on broiler performance. Poult. Sci. 47, 293-300.

Dozier W.A., Lott B.D. and Branton S.L. (2005a). Live performance of male broilers subjected to constant or increasing air velocities at moderate temperatures with a high dew point. Poult. Sci. 84, 1328-1331.

Dozier W.A., Thaxton J.P., Branton S.L., Morgan G.W., Miles D.W., Roush W.B., Lott B.D. and Vizzier-Thaxton Y. (2005b). Stocking density effects on growth performance and processing yields of heavy broiler. Poult. Sci. 84, 1332-1338.

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

Estevez J. (2007). Density allowances for broilers: where to set the limits? Poult. Sci. 86, 1265-1272.

Feddes J.J.R., Emmanuel E.J. and Zuidhof M.J. (2002). Broiler performance, body weight variance, feed and water intake and carcass quality at different stocking densities. Poult. Sci. 81, 774-779.

Guardia S., Konsak B., Combes S., Levenez F., Cauquil L., Guillot J.F., Moreau-Vauzelle C., Lessire M., Juin H. and Gabriel I. (2011). Effects of stocking density on the growth performance and digestive microbiota of broiler chickens. Poult. Sci. 90, 1878-1889.

Hansen R.S. and Becker W.A. (1960). Feeding space, population density and growth of young chickens. Poult. Sci. 39, 654-661.

Heckert R.A., Estevez I., Russek-Cohen E. and Pettit-Riley R. (2002). Effects of density and perch availability on the immune status of broilers. Poult. Sci. 81, 451-457.

Houshmand K., Azhar K., Zulkifli I., Bejo M.H. and Kamyab A. (2012). Effects of prebiotic, protein level and stocking density on performance, immunity and stress indicators of broilers. Poult. Sci. 91, 393-401.

Jayalakshmi T., Kumararaj R., Sivakumar T. and Thamil Vanan T. (2009). Carcass characteristics of commercial broilers reared under varying stocking densities. Tamil Nadu J. Vet. Anim. Sci. 5, 132-135.

Knizatova M., Mihina S., Broucek J., KarandusovskaI. and Macuhova J. (2010). The influence of litter age, litter temperature and ventilation rate on ammonia emissions from a broiler rearing facility. Czech J. Anim. Sci. 55, 337-345.

Lacy M.P. and Czarick M. (1992). Tunnel-ventilated broiler houses: broiler performance and operating costs. J. Appl. Poult. Res. 1, 104-109.

Lolli S., Bessei W., Cahaner A., Yadgari L. and Ferrante V. (2010). The influence of stocking density on the behaviour of featherless and normally-feathered broilers under hot ambient temperature. Arch. Geflügelk. 74, 73-80.

Martrenchar A., Huonnic D., Cotte J.P., Boilletot E. and Morisse J.P. (2000). Influence of stocking density, artificial dusk and group size on the perching behavior of broilers. Br. Poult. Sci. 41, 125-130.

Mtileni B.J., Nephawe K.A., Nesamvuni A.E. and Benyi K. (2007). The influence of stocking density on body weight, egg weight, and feed intake of adult broiler breeder hens. Poult. Sci. 86, 1615-1619.

NRC. (1994). Nutrient Requirements of Poultry, 9^th Rev. Ed. National Academy Press, Washington, DC., USA.

Proudfoot F.G., Hulan H.W. and Ramey D.R. (1979). The effect of four stocking densities on broiler carcass grade, the incidence of breast blisters, and other performance traits. Poult. Sci. 58, 791-793.

Puron D., Santamaria R. and Segura J.C. (1997). Sodium bicarbonate and broiler performance at high stocking densities at tropical environment. J. Appl. Poult. Res. 6, 443-448.

Puron D., Santamaria R., Segura J.C. and Alamilla J. (1995). Broiler performance at different stocking densities. J. Appl. Poult. Res. 4, 55-60.

Ravindran V., Thomas D.V. and Morel P.C.H. (2006). Performance and welfare of broilers as affected by stocking density and zinc bacitracin supplementation. Anim. Sci. J. 77, 110-116.

SAS Institute. (1996). SAS^®/STAT Software, Release 6.11. SAS Institute, Inc., Cary, NC. USA.

Shanawany M.M. (1988). Broiler performance under high stocking densities. Br. Poult. Sci. 29, 43-52.

Simsek U.G., Cerci I.H., Dalkilic B., Yilmaz O. and Ciftci O. (2009). Impact of stocking density and feeding regimen on broilers: chicken meat composition, fatty acids, and serum cholesterol levels. J. Appl. Poult. Res. 18, 514-520.

Skeroglu A., Sarica M., Gulay M.S. and Duman M. (2011). Effect of stocking density on chick performance, internal organ weights and blood parameters in broilers. J. Anim. Vet. Adv. 10, 246-250. 

Sorensen P., Su G. and KestinS.C. (2000). Effects of age and stocking density on leg weakness in broiler chickens. Poult. Sci. 79, 864-870.

Thomas D.G., Ravindran V., Thomas D.V., Camden B.J., Cottam Y.H., Morel P.C.H. and Cook C.J. (2004). Influence of stocking density on the performance, carcass characteristics and selected welfare indicators of broiler chickens. New Zealand Vet. J. 52, 76-81.

Turkyilmaz M.K. (2008). The effect of stocking density on stress reaction in broiler chickens during summer. Turkish J. Vet. Anim. Sci. 32, 31-36.

Ventura B.A., Siewerdt F. and EstevezI. (2010). Effects of barrier perches and density on broiler leg health, fear and performance. Poult. Sci. 89, 1574-1583.

Yardimci M. and Kenar B. (2008). Effect of stocking density on litter microbial load in broiler chickens.Arch. Zootech. 11, 75-81.

Zhang H.F., Jiao H.C., Song Z.G. and Lin G. (2011). Effect of alum-amended litter and stocking density on ammonia release and footpad and hock dermatitis of broilers. Agric. Sci. China. 10, 777-785.

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