Performance of Broiler Chickens Fed 8% Crude Fibre Diets at Three Energy Levels With or Without Enzyme During the Starter and Finisher Phases
DOI:
https://doi.org/10.3923/ijps.2019.423.430Keywords:
Broiler chicken, crude fibre, enzyme supplementation, metabolisable energy, roxazyme®G2Abstract
Background and Objective: Optimal inclusion levels of Crude Fibre (CF) and exogenous enzymes in poultry diets have beneficial effects on growth performance indices and feed cost per unit weight gain. This study was, therefore, conducted to evaluate the production performance and economy of unsexed Obamarshal broiler chickens fed ca 8% CF diets at three energy levels with or without Roxazyme®G2G supplementation during the starter and finisher phases. Materials and Methods: One hundred and forty-four day-old unsexed Obamarshal broiler chicks were divided into six treatments at 24 birds each with three replicates per dietary treatment and fed for 28 days each for the starter and finisher phases with ca 8% CF diets at 2600, 2800 and 3,000ME (kcal kg–1 diet) with or without enzyme. Roxazyme®G2G was incorporated at 0 and 200 mg kg–1 diet per energy level to produce six diets labeled A, B, C, D, E and F in ascending order of energy and enzyme levels. Live weight, average daily gain (ADG), feed intake, feed conversion ratio (FCR), protein intake, protein efficiency ratio (PER), calorie intake, fibre intake, water intake, water intake: feed intake, water intake: weight gain, faecal output and mortality rate were evaluated using standard methods. Data were analysed using 2×3 factorial arrangement and according to one-way Analysis of Variance. Means were separated with Duncan’s Multiple Range Test at p<0.05. Results: Except for the non-supplemented diet A, birds on the other dietary treatments B, C, D, E and F had better (p<0.05) and comparable (p>0.05) performance indices, with the ADG ranging from 28-30 and 50-55 g b–1 during the starter and finisher phases respectively. The findings implied beneficial effect of enzyme inclusion at sub-optimal but not at optimal energy levels. Feed cost per unit weight gain was minimized in the birds fed ca 8% CF diet at 2600ME (kcal kg–1) with enzyme, showing that energy is the most costly component of the feed. Conclusion: Feeding diet of about 8% CF at 2600 ME (kcal kg–1) with Roxazyme®G2G appeared to be nutritionally and economically feasible for broiler starters and finishers in the humid tropics.
References
Choct, M., 2001. Carbohydrate and fibre digestion in monogastric animals. ASA Technical Bulletin AN34-2001, American Soybean Association, Singapore, pp: 1-10.
Hetland, H., M. Choct and B. Svihus, 2004. Role of insoluble non-starch polysaccharides in poultry nutrition. World's Poult. Sci. J., 60: 415-422.
Salami, R.I. and A.A. Odunsi, 2017. Growth performance of broiler starter chickens fed varying levels of fibre and energy in multi-fibre source-based diets. Niger. J. Anim. Sci., 19: 83-93.
Lee, J.J., N. Sally, R. Antonio and S. Jerry, 2003. Feeding by-products high in concentration of fibre to non-ruminants. Proceedings of the 3rd National Symposium on Alternative Feeds for Livestock and Poultry, November, 4-5, 2003, Kansas City, MO., USA.
Sundu, B., A. Kumar and J. Dingle, 2006. Palm kernel meal in broiler diets: Effect on chicken performance and health. World's Poult. Sci. J., 62: 316-325.
Salami, R.I. and A.A. Odunsi, 2017. Effect of varying dietary fibre and energy levels in multi-fibre source-based diets on growth performance of broiler finisher chickens. Niger. J. Anim. Sci., 19: 72-82.
Ani, A.O. and O.D. Omeje, 2007. Response of broiler finishers to graded levels of raw bambara nut (Vigna subterranea (L) Verdc) waste and supplementary enzyme. Trop. J. Anim. Sci., 10: 281-288.
Bawa, G.S., L.A. Alayande and S.O. Ogundipe, 2012. Effect of Maxigrain® supplementation on the utilization of brewers dried grain and maize offal based diets for broiler chickens. Niger. J. Anim. Sci., 12: 29-40.
Salami, R.I. and A.A. Odunsi, 2018. Crude fibre versus Roxazyme® G2G inclusion levels in sub optimum energy diets for broiler chickens: Performance and carcass characteristics at 8 weeks of age. Int. J. Agric. Biosci., 7: 36-42.
Acamovic, T., 2001. Commercial application of enzyme technology for poultry production. Word's Poult. Sci. J., 57: 225-242.
Khattak, F.M., T.N. Pasha, Z. Hayat and A. Mahmud, 2006. Enzymes in poultry nutrition. J. Anim. Plant Sci., 16: 1-7.
Altaf-ur-Rahman, M. Ali, S. Sultan and N. Ahmad, 2007. Economic importance of exogenous enzymes in broiler rations. Sarhad J. Agric., 23: 489-492.
Aduku, A.O., 2004. Feed ingredient and diet composition tables for the tropics. Davcon Computers and Business Bureau, Kaduna, Nigeria.
NRC., 1994. Nutrient Requirement of Poultry. 9th Rev. Edn., National Academy Press, Washington, DC., USA., ISBN-13: 978-0-309-04892-7, Pages: 176.
Iwena, O.A., 2012. Essential Geography for Senior Secondary Schools. 6th Edn., Tonad Publishers Limited, Lagos, Nigeria.
Olomu, J.M., 1995. Monogastric Animal Nutrition: Principles and Practice. Jachem Publication, Benin, pp: 67-99.
Horwitz, W. and AOAC, 2000. Official Methods of Analysis of AOAC International. 17th Edn., Association of Official Analytical Chemists, Gaithersburg, Maryland.
SAS., 2000. SAS User's Guide. SAS Institute Inc., Cary, NC., USA.
BIS., 1992. Requirement for chicken feeds. IS 1374: 1992, Bureau of Indian Standards, New Delhi, India.
Oldale, P.M.D. and F. Hoffman, 1996. Enzymes-a tool for unlocking nutrients in animal feed. Roche Nigeria Seminar, Sheraton Lagos Hotel, Nigeria.
Aguihe, P.C., A.S. Kehinde and E.A. Iyayi, 2015. Effect of enzyme (Maxigrain®) supplementation on performance characteristics and nutrient digestibility of growing Japanese quails (Cortunix cortunix japonica) fed diets containing yam peel meal. Niger. J. Anim. Sci., 17: 65-74.
Rambabu, D., V.R. Reddy, V.K. Reddy and G.V.B. Reddy, 2016. Efficacy of fibre degrading and proteolytic enzymes supplemented high fibre diets on performance of broilers. Int. J. Sci. Environ. Technol., 5: 2972-2981.
Lawal, T.E., E.A. Iyayi, B.A. Adeniyi, O.A. Adaramoye, F.A. Aderemi and O.M. Alabi, 2007. Growth responses and relative organ weight of Broilers fed biodegraded cassava root sievate. Trop. J. Anim. Sci., 10: 77-81.
Iyayi, E.A. and B.A. Yahaya, 1999. Performance of broiler maintained on diets supplemented with commercial polysaccharide enzyme in the humid tropics. Trop. Anim. Prod. Invest., 2: 125-130.
Agbede, J.O., K. Ajaja and V.A Aletor, 2002. Influence of Roxazyme G. supplementation on the utilization of sorghum dust-based diets for broiler-chicks. Proceedings of the 27th Annual Conference Nigerian Society for Animal Production, March 17-21, 2002, Federal University of Technology, Akure, Nigeria, pp: 105-108.
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