One hundred and twenty white leghorn layers of 80 weeks having uniform body weight were randomly divided into 15 experimental units of 8 birds each and reared under standard managemental conditions. Five treatments (each having three replicates) i.e. control T1 (commercial layer mash), T2 (layer mash having 6% fiber + 1X enzyme), T3 (layer mash having 8% fiber + 1X enzyme), T4 (layer mash having 6% fiber + 2X enzyme) and T5 (layer mash having 8% fiber + 2X enzyme) were randomly allotted to experimental units. Egg production, egg weight and feed consumption were recorded for eight weeks. Egg mass, feed conversion ratio/dozen egg and feed conversion ration/kg egg mass was also calculated. Data was analyzed statistically using analysis of variance technique under completely randomized design. Treatment means were compared using least significant test. It was found that egg production increased significantly by the T2 but was non-significant with the control group. The different treatments showed significant decrease in feed consumption as compared with control group. Significant improvement in egg mass was found in control group and was non-significant with T2 and T4. There was significant effect of enzyme supplementation on feed conversion ration/dozen egg and feed conversion ratio/kg egg mass. T2 and T4 showed best feed conversion ratios per dozen and per kg egg mass. Maximum profit/bird was observed in T2 followed by T4, T5, T3 and T1, respectively
Chesson A. World's Poultry Science Journal 2001; 57: 251. http://dx.doi.org/10.1079/WPS20010018
Jaroni D, Scheideler SE, Beck MM, Wyatt CL. Poultry Science 1999; 78: 1664. http://dx.doi.org/10.1093/ps/78.12.1664
Antoniou TC, Marquardt RR. Poultry Science 1983; 62.
Bedford MR, Classen HL, Campbell GL. Poult Sci 1991; 70: 1571. http://dx.doi.org/10.3382/ps.0701571
Steenfeldt S, Kjaer J, Engberg RM. Poultry Science 2007; 48: 454. http://dx.doi.org/10.1080/00071660701473857
Yin XJ, Dong CC, Ma JYC, Antonini JM, Roberts JR, Stanley CF, Schafer R, Ma JKH. Toxicol Sci 2004; 77: 263. http://dx.doi.org/10.1093/toxsci/kfh035
Zhang Z, Marquardt RR, Guenter W, Cheng J, Han Z. Poult Sci 2000; 79: 1757. http://dx.doi.org/10.1093/ps/79.12.1757
Acamovic T. World's Poultry Science Journal 2001; 57: 225. http://dx.doi.org/10.1079/WPS20010016
Elmenawey MA, Ali AHR, Galal MAA, Stino FKR. Egypt Poult Sci 2010; 30: 661.
Yusrizal Y, Angel R, Adrizal A, Wanto BE, Fakhri S, Yatno Y. J Appl Poult Res 2013; 22: 269. http://dx.doi.org/10.3382/japr.2012-00633
Brenes A, Marquardt RR, Guenter W, Viveros A. Poult Sci 2002; 81: 670. http://dx.doi.org/10.1093/ps/81.5.670
Choct M, Annison G. Br Poult Sci 1990; 31: 811. http://dx.doi.org/10.1080/00071669008417312
Esonu BO, Izukanne RO, Inyang OA. International Journal of Poultry Science 2005; 4: 213. http://dx.doi.org/10.3923/ijps.2005.213.216
Hetland H, Svihus B, Krogdahl A. British Poultry Science 2003; 44: 275. http://dx.doi.org/10.1080/0007166031000124595
Hetland H, Svihus B, Olaisen V. Br Poult Sci 2002; 43: 416. http://dx.doi.org/10.1080/00071660120103693
Petersen ST, Wiseman J, Bedford MR. British Poultry Science 1999; 40: 364. http://dx.doi.org/10.1080/00071669987467
Krimpen MMV, Kwakkel RP, Van Der Peet-Schwering CMC, Hartog LAD, Verstegen MWA. British Poultry Science 2012; 52: 430.
Pan CF, Igbasan FA, Guenter W, Marquardt RR. Poult Sci 1998; 77: 83. http://dx.doi.org/10.1093/ps/77.1.83
Jamroz D, Jakobsen K, Bach Knudsen K, Wiliczkiewicz A, Orda J. Comp Biochem Physiol A Mol Integr Physiol 2002; 131: 657. http://dx.doi.org/10.1016/S1095-6433(01)00517-7
Steel RGD, Torrie JH, Dickey DA. Principles and Procedures of Statistics: A Biometrical Approach, McGraw-Hill, San Francisco 1996.
Cowan WD, Korsbak A. British Poultry Science 1999; 37.
Igbasan FA, Guenter W. Poult Sci 1997; 76: 331. http://dx.doi.org/10.1093/ps/76.2.331
van Krimpen MM, Kwakkel RP, van der Peet-Schwering CM, den Hartog LA, V. MW. Poultry Science 2008; 87: 485. http://dx.doi.org/10.3382/ps.2007-00279
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2014 Atia Bahseer, A. Haq, I. Zahoor