Int. J. Agron. Agri. Res.10(3), 1-8, March 2017
A total of 720 Cobb 500 day old chicks with an average hatching weight 44.35 g each were divided into five dietary treatments groups (diet group 1, 2, 3, 4 and 5 with the doses of threonine like, 0 g/kg, 0.5g/kg, 1g/kg, 1.5g/kg and 2g/kg feed, respectively). Each of 144 birds under each treatment were replicated to eight subgroups of 18 birds each to investigate the productivity and cost effectiveness of commercial broilers fed increasing levels of threonine supplemented diets. The birds were reared in an open-sided shed up to the age of 35 days at Bangladesh Agricultural University Poultry Farm, Mymensingh, Bangladesh. Apart from differences in diets, care and management for all treatments groups were similar. Data were collected on body weight, feed intake, livability, average daily weight gain (ADG), feed conversion ratio (FCR), carcass traits and income over cost of production were calculated out. The highest live weight (1978.09±0.40 g/bird) at 35 days and the highest dressing yield ( 1314.63±1.48 g/bird) at 30 days were documented for the diet group five. The best amount of threonine for live body weight gain, FCR, ADG of broiler bird was 2.0 g/kg feed and it was followed by 1.0 g/kg feed, 1.5 g/kg feed and 0.5 g/kg feed. Very interestingly, the best amount of threonine for dressing yield per bird and breast weight of broiler bird was 2.0 g/kg feed and similarly the best economic dose of threonine for commercial broiler production was 2 g/kg feed.
Akter S, Uddin M. 2009. Bangladesh poultry industry. Journal of Business and Technology 4, 97-112.
Almquist HJ, Grau CR. 1944. The amino acid requirements of the chick. Journal of Nutrition 28, 325-331.
Farkhoy M, Modirsanei M,Ghavidel O, Sadegh M, Jafarnejad S. 2012. Evaluation of Protein Concentration and Limiting Amino Acids Including Lysine and Met + Cys in Prestarter Diet on Performance of Broilers. Veterinary Medicine International.
Gous RM. 2010. Nutritional limitations on growth and development in poultry. Livestock Science 130, 25–32.
Hegsted DM. 1944. Growth in chicks fed amino acids. Journal of Biological Chemistry 156, 247-251.
Islam F, Akther B, Khatun A, Harun-Or-Rashid M, Hossain MS. 2016. Profitable broiler farming at the villages of Khulna district in Bangladesh. Journal of Bioscience and Agriculture Research 08(01), 678-684.
Islam F, Hossain MH, Akhtar A, Hossain MS. 2014. Prospect and Challenges in Broiler Farming of Barguna District in Bangladesh. Journal of Bioscience and Agriculture Research 02(01), 44-51.
Khaled SMS. 2014. Poultry industry: Realities and prospects. The Financial Express, International Publication Limited., visited on 26 April 2014. www.thefinancialexpressbd.com
Kidd MT, Kerr BJ. 1996. L-Threonine for Poultry: A review. Journal of Applied Poultry Research 5, 358-367.
Kidd MT, McDaniel CD, Branton SL, Miller ER, Boren BB, Fancher BI. 2004. Increasing amino acid density improves live performance and carcass yields of commercial broilers. Journal of Applied Poultry Research 13, 593–604.
NRC. 1994. National Research Council (NRC), Nutrient Requirements of Poultry. The National Academies Press, Washington, DC, USA, 9th edition, Washington, DC.
Oyediji GO. 2001. Improving poultry feed and supply in Nigeria. In: Improving poultry feed production and supply in Nigeria in management. Proceedings of a One-day Workshop organized by World’s Poultry Science Association, Nigeria Branch in conjunction with the Department of Animal Science, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, Nigeria.
SAS. 2009. SAS Institute Inc., SAS Campus Drive, Cary, North Carolina 27513, USA.
Schmidt CJ, Persia ME, Feierstein E, Kingham B, Saylor WW. 2009. Comparison of a modern broiler line and a heritage line unselected since the 1950s. Poultry Science 88, 2610–2619.
The Dhaka Tribune. 2014. Minister for developing poultry database, March 02, 2014, Dhaka.
Uchegbu MC, Irechukwu NM, Omede AA, Nwaodu CH, Anyanwu GA, Okoli IC, Udedibie ABI. 2009. Comparative Evaluation of Three Commercial feeds on the performance of Broilers. Report and Opinion 1(4).
Vieira SL, Angel CR. 2012 Optimizing broiler performance using different amino acid density diets: What are the limits? J. Appl. Poult. Res. 21, 149–155