Effects of cottonseed meal supplemented with lysine and enzyme (Hydroenzyme XP) on egg quality and performance of laying hens

Revista Brasileira de Zootecnia

Ali Asghar Saki¹  Khashayar Pournia¹  Mohamad Mehdi Tabatabaie¹  Pouya Zamani¹  Mojtaba Haghighat¹  Jalal Salary¹ 

关键词: cottonseed meal;    DNA;    performance;    protein synthesis;    RNA;   

DOI  :  10.1590/S1516-35982012001000013

来源: SciELO

【 摘 要 】

This study was conducted to evaluate the effect of cottonseed meal supplemented with lysine and enzyme on laying hens performance and egg quality. Eighty Hy-Line W-36 white Leghorns were allotted for 12 weeks in a 2 × 2 factorial experiment in a completely randomized design, including four treatments and five replications with four birds in each. Treatments included: basal diet + 1% lysine + 0% enzyme; basal diet + 1% lysine + 0.025% enzyme; basal diet + 2% lysine + 0% enzyme; and basal diet + 2% lysine + 0.025% enzyme. Protein content in the magnum tissue was not significantly affected by different levels of lysine and enzyme, although magnum Protein:RNA ratio increased with 2% of lysine as compared with 1%. Moreover, jejunum DNA's concentration was not significantly affected by lysine. Similarly, jejunum RNA:DNA ratio increased with 2% of lysine. Performance specificity significantly improved with 2% lysine and 0.025% enzyme. Diets supplemented with 2% lysine and 0.025% enzyme can improve performance, increase magnum protein synthesis and jejunum cell efficiency.

【 授权许可】

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