Resumen

ESTRADA P., MÓNICA MARÍA  y  RESTREPO B., LUIS FERNANDO. EFFECT OF VITAMINS AND AMINO ACID COMPLEX IN PERFORMANCE LAYING HENS. Rev.Bio.Agro [online]. 2013, vol.11, n.1, pp.225-234. ISSN 1692-3561.

Intensive systems of commercial egg production can lead to the birds to a state of immunosuppression; this can be mitigated with the supply of substances that activate the physiological mechanisms of animal. This study evaluated the effect of a complex of vitamins and amino acids in the productive performance of laying hens. A flock of 20395 layer hens Lohmann LSL, which was divided into two groups: the first group was treated with vitamins and amino acids (T2); the second group was established as the control (T1). T2 Hotelling statistic and Spearman's method used for determining the relationship between variables, where the analysis was supplemented by one-way descriptive technique. For the production variables feed intake, egg production rate, egg hen housed, viability and feed conversion was found highly significant differences (p <0,0001) in the average effect of the groups taking all response variables simultaneously. The group of layer hens, which will supply the complex vitamins and amino acids, achieve better production performance.

Palabras clave : Production performance; Immunosuppression; Adjuvants nutrients.

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