Items | Met:Lys | SEM | P-value | |||||
---|---|---|---|---|---|---|---|---|
0.27 | 0.37 | 0.47 | 0.57 | Linear | Quadratic | Feed | ||
Basic information | ||||||||
No. of sows | 33 | 32 | 32 | 33 | ||||
Culleda during lactation | 4 | 1 | – | 1 | ||||
Average body weight, kg | 266.70 | 266.50 | 266.70 | 266.40 | 1.64 | |||
Average parity | 4.40 | 4.10 | 4.00 | 4.38 | 0.07 | |||
BW of sows, kg | ||||||||
Day 110 of lactation | 268.9 | 266.4 | 265.8 | 266.8 | 1.7 | 0.70 | 0.80 | 0.93 |
Parturition | 264.8 | 262.3 | 261.8 | 262.8 | 1.7 | 0.70 | 0.81 | 0.93 |
Weaning | 245.2 | 243.9 | 244.5 | 247.3 | 1.8 | 0.70 | 0.77 | 0.92 |
Loss during lactation | −19.6 | −18.4 | −17.2 | −15.4 | 1.4 | 0.30 | 0.57 | 0.77 |
WEI of sows, d | ||||||||
No. of sows | 29 | 31 | 31 | 32 | ||||
Within 1 week | 4 | 5 | 4 | 5 | 0.13 | 0.97 | 0.99 | 0.93 |
After 1 week | 6 | 8 | 5 | 6 | 0.51 | 0.80 | 0.73 | 0.22 |
Estrus rate of sows, %b | ||||||||
Within 1 week | 89.66 | 77.42 | 93.55 | 90.63 | 0.66 | 0.86 | 0.22 | |
After 1 week | 96.55 | 100.00 | 100.00 | 100.00 | 0.20 | 0.26 | 0.35 | |
Sow backfat thickness, mm | ||||||||
No. of sows | 32 | 32 | 32 | 33 | ||||
Day 110 of lactation | 15.72 | 15.97 | 15.72 | 15.33 | 0.24 | 0.50 | 0.65 | 0.83 |
Parturition | 14.94 | 15.38 | 15.19 | 14.76 | 0.27 | 0.80 | 0.69 | 0.86 |
No. of sows | 29 | 31 | 32 | 33 | ||||
Weaning | 14.41 | 15.29 | 14.94 | 14.42 | 0.26 | 0.90 | 0.40 | 0.57 |
Loss during lactation | −0.59 | −0.19 | −0.25 | −0.33 | 0.21 | 0.70 | 0.81 | 0.92 |
Lactation performance, kg | ||||||||
Total milk yieldc | 203.59 | 207.18 | 213.29 | 210.94 | 3.26 | 0.56 | 0.80 | 0.70 |
Average daily milk yield | 11.10 | 11.34 | 11.62 | 11.44 | 0.08 | 0.59 | 0.85 | 0.97 |