EFFECTS OF THE ORGANIC SELENIUM (SEL-PLEX) ADMINISTERED IN LAYING HENS’ FEED IN SECOND LAYING PHASE ON PRODUCTION PERFORMANCES AND THE EGGS QUALITY

A. Sara, M. Benţea, Antonia Odagiu, L. Panta

Abstract


The research was performed on 162 laying hens, Roso– SL hybrid, divided in three groups, 54 heads/group. Organic Se (Sel-plex) was supplemented in total mixed ratio (TMR) in group 2E using a proportion of 0.03%, and in group 3E of 0,045%. The trial developed within 14 weeks, second laying stage (48 weeks – 62 weeks of age), respectively. The laying hens were individual weighted, in the beginning and in the end of the trial. During trial, the following issues were studied: evolution of body weight, laying intensity, average weight of eggs, forage consumption by egg, egg structure, eggshell quality and Se content in egg. The use of 0.03% organic selenium (Sel-plex) in group 2E and the use of 0,045 % organic selenium in feed administered to group 3E determined an increase of laying intensity by 3.23% (G3-E) and 1,23% (G2-E), reducing specific consumption by egg by 3.03%, (G3-E) and 0,26% (G2-E) and the reduction of the number of eggs with shell abnormalities at 1,14% (G3-E) and 1,56% (G2-E) towards 2,42% in group G1 (C). Also the egg enriches in selenium (20,15 μg/ egg at G2-E, towards 16,62 μg/ egg at G1-C). The results obtained confirm the favorable influence of the organic selenium on the main production and consumption indices, as well as on the egg quality of laying hens in the second laying stage.

Keywords


Sel-Plex; laying hens; productive performances; egg quality

Full Text:

PDF


DOI: http://dx.doi.org/10.15835/buasvmcn-asb:65:1-2:758




University of Agricultural Sciences and Veterinary Medicine
3-5 Manastur St., 400372 Cluj-Napoca
Romania
Tel: +40-264-596.384 | Fax: +40-264-593.792 
biroupublicatii@usamvcluj.ro