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Effect of different levels of digestible lysine on performance, and blood parameters of male and female broilers in the starter period

Published online by Cambridge University Press:  22 November 2017

F Alemi ,
M Shivazad ,
M Zaghari ,
H Moravej ,
A Mahdavi ,
S A Hosseini ,
A Mahdavi  and
S Savar Sofla
F Alemi
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran
M Shivazad
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran
M Zaghari
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran
H Moravej
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran
A Mahdavi*
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran Animal Science Researches Institute of Iran, Karaj-Tehran, Islamic Republic of Iran
S A Hosseini
Affiliation:
Tehran University, Karaj-Tehran, Islamic Republic of Iran Animal Science Researches Institute of Iran, Karaj-Tehran, Islamic Republic of Iran
A Mahdavi*
Affiliation:
Sharif University, Tehran-Tehran, Islamic Republic of Iran
S Savar Sofla
Affiliation:
Animal Science Researches Institute of Iran, Karaj-Tehran, Islamic Republic of Iran
*
Email: mahdavi@asri.ir
Email: mahdavi@asri.ir
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Extract

Lysine is the reference amino acid (AA) in the ideal AA ratios for chickens. Feed formulation based on digestible AA has been shown to increase weight gain and feed intake and improve body composition in broilers. Amino acid (AA) in most feed ingredients will not be totally digested, and knowledge of such efficiency is important in formulating diets and will be used to eliminate differences in absorption efficiencies due to feedstuff sources. This study was conducted to evaluate the growth performance and blood parameters of broilers fed various levels of DL (Digestible Lysine) supplemented in diets from day 1 to day 18.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2009 , April 2009 , pp. 221
Copyright
Copyright © The British Society of Animal Science 2009

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References

Samadi, , and Liebert, F.. 2008. Modelling the optimal lysine to threonine ratio in growing chickens depending on age and efficiency of dietary amino acid utilization. British Poultry Science. 49, 45—54.Google Scholar
Corzo, A., Dozier, W.A., and Kidd, M.T.. 2006. Dietary lysine needs of late-developing heavy broilers. Poultry Science. 85, 457–461.CrossRefGoogle ScholarPubMed