YIELD RESPONSE OF THE LAYING HYBRIDSTO THE MODIFIED COOPS REARING SYSTEM
Abstract
The management conditions provided to the fowl having not free access to hall floor (Lc, L1exp and L2exp) allowed the expression of the used hybrid (Lohmann Brown) potential. Thus, control group yield counted 325.05 eggs, compared to just 311.34 eggs, produced by the L3exp (hens with free access on hall floor). Mortality has been correlated with the brooding density (7.46÷9.57% in experimental groups and 11.66% in Lc one). Shell was found thicker in L3exp group (0.369÷0.448 mm), as well as its breaking strength (0.337÷0.348 kg f/cm2). Microbial load of the shell gradually increased, especially in L3exp group (148.62÷258.94 germs/cm2, compared with 106.31÷106.61 germs/cm2).
Authors who publish with this journal agree to the following terms:a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
