Effect of phytogenic feed additives on egg quality and production potentialities of quails

The present study evaluated the effect of six phytoadditives (PFA) on the quail egg quality and performance of layer quails. 360 birds (6 weeks old) were randomly distributed into eight groups [n = 45 (15-birds/replica)] viz. negative control (NC, maize-soya-based diet), positive control [PC, herbal growth promoter (Reproforte plus™) was supplemented at 0.05 % (w/w)] and T₁, T₂, T₃, T₄, T₅, and T₆ groups supplemented with 1.0 % PFA i.e. turmeric, garlic, fenugreek, cumin, Aloe vera and oregano powders, respectively. The PFAs were fed for 22 weeks. The PFA inclusion improved (P < 0.05) hen-day egg production and feed-conversion ratio during the first three months of treatment without any effect on feed intake. The PFA-supplementation enhanced the yolk colour (b* and a* values) and the eggs’ antioxidant activity compared to NC. While serum protein profile and enzymes showed no change (P > 0.05), the serum cholesterol (mg/dl) was significantly reduced in the T₂ (garlic) and T₃ (fenugreek) groups and LDL was reduced significantly in the T₃ group. The PFA supplementation enhanced the overall acceptability of the eggs. The return on investment (%) was higher for the T₁ (turmeric), T₃ (fenugreek) and T₅ (A. vera) groups. It may be concluded that PFA supplementation is beneficial economically and enhances egg quality.