Table 2.
Placental gross morphometry and calf measurements at birth by treatment group
| First trimester | High protein | Low protein | ||||||
|---|---|---|---|---|---|---|---|---|
| Second trimester | High | Low | High | Low | ||||
| Mean | SEM | Mean | SEM | Mean | SEM | Mean | SEM | |
| Placental gross morphometry | ||||||||
| Number of cotyledons | 78.0 | ±6.9 | 98.5 | ±18.5 | 78.5 | ±7.3 | 70.3 | ±8.2 |
| Cotyledon wet weight (g) | 1493.3 | ±82.7 | 1308.5 | ±91.5 | 1544.3 | ±165.7 | 1335.0 | ±163.5 |
| Cotyledon dry weight (g) | 124.3 | ±17.1 | 88.8 | ±22.7 | 128.4 | ±20.5 | 130.6 | ±12.4 |
| Placental wet weight (g) 1 | 4923.8 | ±356.5 | 3935.0 | ±585.0 | 4247.0 | ±367.9 | 3405.5 | ±561.2 |
| Calves measurements | ||||||||
| Birth weight | 36.8 | ±0.9 | 31.0 | ±1.8 | 36.7 | ±2.3 | 36.0 | ±1.9 |
| BPD | 10.8b | ±0.1 | 10.5a | ±0.2 | 10.7b | ±0.2 | 10.3a | ±0.2 |
BPD=biparietal diameter.
a,bDifferent alphabetic superscripts denote mean values which are significantly different from each other (P<0.05).
1
The observed increase in placental weight by second trimester high-protein treatment was below this level at P=0.06.