HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Vazquez, M. Articles by Pesti, G. M. Search for Related Content PubMed Articles by Vazquez, M. Articles by Pesti, G. M.

Estimation of the Lysine Requirement of Broiler Chicks for Maximum Body Gain and Feed Efficiency

Department of Poultry Science, The University of Georgia, Athens, GA 30602-2772; Phone: (706) 542-1351; FAX: (706) 542-1827

Correspondence: Gene M. Pesti

The world's literature on the lysine requirement of starting chickens (0-3 wk) was reviewed and 16 response data sets were chosen for analyses based on completeness of the description of the experimental conditions and the period studied. Data was pooled from different research reports to compare responses and get estimates of the requirement for dietary lysine for broiler chicks up to 21 days of age. The nonlinear mathematical models "ascending line with plateau" (ALP) and "ascending quadratic with plateau" (AQP) were fitted to estimate the lysine requirement. The AQP model may be more realistic and adequate than the ALP model for the prediction of the lysine requirement theoretically, but the statistical fits of the two models were very similar. The predicted lysine requirements for broiler chicks from 0 to 3 wk of age using the ALP model were 1.04±0.02% for gain and 1.10±0.05% for feed efficiency. Using the AQP model the requirements were 1.21±0.06% for gain and 1.32±0.10% for feed efficiency.

Key Words: Broilers • lysine • modeling

This article has been cited by other articles:

				W. A. Dozier III, M. T. Kidd, and A. Corzo Dietary Amino Acid Responses of Broiler Chickens J. Appl. Poult. Res., January 1, 2008; 17(1): 157 - 167. [Abstract] [Full Text] [PDF]