Selected cows(1) | Initial (a) | Final (b) | Difference (a)-(b) | ∆%(2) | P <(3) |
Milk yield, kg∙cow−1∙day−1 | 36.89 (±5.49) | 34.69 (±5.48) | 2.20 (±2.13) | −6.66 | 0.03 |
4% FCM yield, kg∙cow−1∙day−1 | 32.83 (±4.39) | 29.63 (±5.28) | 3.21 (±2.73) | −11.86 | 0.02 |
Milk fat content, g 100 g−1 | 3.28 (±0.42) | 3.02 (±0.39) | 0.27 (±0.29) | −9.24 | 0.05 |
Milk fat yield, , kg∙cow−1∙day−1 | 1.21 (±0.18) | 1.05 (±0.22) | 0.16 (±0.14) | −16.68 | 0.03 |
Milk protein content, g 100 g−1 | 2.89 (±0.12) | 3.08 (±0.10) | 0.10 (±0.25) | 5.92 | 0.04 |
Milk protein yield, kg∙cow−1∙day−1 | 1.07 (±0.16) | 1.07 (±0.15) | - | - | 0.96 |
Lactose content, g 100 g−1 | 4.87 (±0.10) | 4.86 (±0.10) | 0.02 (±0.08) | −0.32 | 0.65 |
Lactose yield, kg∙cow−1∙day−1 | 1.80 (±0.28) | 1.69 (±0.29) | 0.11 (±0.10) | −6.97 | 0.02 |
Total solid content, g 100 g−1 | 11.78(±0.47) | 12.01 (±0.81) | −0.23 (0.64) | +1.66 | 0.38 |
Total solid yield, kg∙cow−1∙day−1 | 4.34 (±0.60) | 4.17 (±0.75) | 0.17 (±0.46) | −5.09 | 0.37 |
Non-fat solid content, g 100 g−1 | 8.50 (±0.12) | 8.68 (±0.11) | 0.18 (±0.22) | +2.06 | 0.08 |
Non-fat solid yield, kg∙cow−1∙day−1 | 3.14 (±0.48) | 3.01 (±0.47) | 0.13 (±0.15) | −4.38 | 0.07 |
Milk tank samples(4) |
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Milk fat content, g 100 g−1 | 3.43 (±0.03) | 3.26 (±0.08) | 0.17 (±0.11) | −5.40 | 0.11 |
Milk protein content, g 100 g−1 g | 3.15 (±0.01) | 3.28 (±0.03) | 0.12 (±0.02) | +3.76 | 0.01 |
Lactose content, g 100 g−1 | 4.88 (±0.01) | 4.90 (±0.01) | 0.01 (±0.01) | +0.27 | 0.06 |
Total solid content, g 100 g−1 g | 12.23(±0.03) | 12.23 (±0.07) | - | +0.27 | 0.94 |
Non-fat solid content, g 100 g−1 g | 8.78 (±0.01) | 8.93 (±0.03) | 0.14 (±0.02) | +1.61 | 0.00 |