Some metabolic and productive responses of growing Japanese quail as affected by dietary thyme, dianthus and fennel
SummaryThis experiment was conducted to evaluate the effect of adding some herbal feed additives (HF A) [thyme (T, Thymus Vulgaris L.), dianthus (D, Delphinum Ajaews), and fennel (F, Foeniculum Vulgare L.)] at a level of 10g/kg to Japanese quail diets on performance and some metabolic functions. Adding HFA to the control diet improved (P<0.05) body gain, feed intake and feed conversion (feed/gain) efficiency. The birds fed dietary F additive exhibited the best (P<0.05) values of these parameters during the entire period (0 to 6 weeks of age), compared with other dietary treatments. There was an improvement (P<0.05) in total protein, globulin, and albumin for birds fed dietary T or F at six weeks of age. Birds fed on dietary F recorded the lowest (P<0.05) value of these components compared with other dietary treatments.