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ISA Brown laying hens at 24 weeks of age, housed in laying battery cages, were used in this 4-group experiment. One group was fed a basal diet containing primarily maize, soybean meal and wheat. Selen...
In this experiment, the factors were control and low energy concentration (2800 vs. 2600 kcal ME/kg), control and deficiency methionine concentration (0.40 vs. 0.35%), and control and excess folic ac...
In this study a selection experiment was carried out in order to investigate the effectiveness of index selection including oviposition time as a selection trait for persistency of laying strain build...

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