Table 3 Milk composition and lactation yield of ewes fed the experimental treatments in two sampling periods

Item Period 1 (week 5) SEM Period 2 (week 9) SEM
P1 P2 P3 P4 P1 P2 P3 P4
Yield
Milk (kg/day) 1.08 1.02 1.20 1.18 0.09 1.09b 1.03b 1.16ab 1.37a 0.09
Milk (6% FCM) 0.96 0.93 1.12 1.77 0.09 0.98b 0.94b 1.07b 1.35a 0.08
Milk components (%)
Fat 4.82c 5.08bc 5.28b 5.94a 0.09 4.88c 5.02c 5.18b 5.82a 0.05
Protein 4.20 3.60 3.85 3.92 0.21 3.64 3.15 3.70 4.07 0.25
Lactose 4.83 5.05 4.69 4.64 0.28 5.06 4.84 4.90 4.78 0.17
Total solids 14.37 13.69 13.86 14.35 0.48 13.70 12.79 14.10 13.91 0.34
1. a, b, cValues containing different letters in each row are significantly different (P < 0.05)
2. P1 = control without phosalone and sodium bentonite (SB); P2 = phosalone was given at a dose of 280 mg/day/ewe; P3 = phosalone (280 mg/ewe/day) and SB (32 g/ewe/day) fed for 63 consecutive days; Treatment P4 = feeding SB with concentration of 32 g/ewe/day
3. 6% FCM was calculated by this formula = M (0.453 + 0.0912f) [60], that M is the yield of milk (kg), and f is fat percentage of milk