%0 Journal Article %A M. Bouyeh, %A J. Pourreza, %A A. H. Samie, %T Effects of Different Levels of Lysine and Protein on the Performance of Hy-Line Layers %J Journal of Crop Production and Processing %V 5 %N 4 %U http://jcpp.iut.ac.ir/article-1-90-en.html %R %D 2002 %K Lysine, Protein, Laying hens., %X An experiment was carried out to determine the effects of different levels of lysine and protein on the performance of 240 Hy-Line W36 layers. Ten experimental diets were tested in a 2×5 factorial arrangement with a completely randomized design. Two basal diets (13 and 14% protein) were tested at different levels (10 and 20% lower than NRC, NRC and 10 and 20% above NRC recommendations). Dietary lysine levels were 0.56, 0.62, 0.69, 0.76 and 0.83%. During the three months of experimental period, egg production, egg weight, egg output, feed intake and conversion and lysine and protein intake were determined. The results indicated that 0.76% lysine and more (10 and 20% above NRC recommendation) with 13% dietary protein led to significantly (P %> http://jcpp.iut.ac.ir/article-1-90-en.pdf %P 151-163 %& 151 %! %9 Research %L A-10-2-90 %+ %G eng %@ 2251-8517 %[ 2002