Table 3 Age and physiological status of the cows
From: Adaptability of Polish Red cows to extensive conditions
Parameter | Experimental group | p-value | Total | ||||
|---|---|---|---|---|---|---|---|
EXT | TRAD | ||||||
X | SD | X | SD | X | SD | ||
Number of animals | 11 | Â | 11 | Â | Â | 22 | Â |
Lactation number | 4.9 | 2.4 | 4.3 | 2.5 | 0.554 | 4.6 | 2.4 |
Day of gestation (days) – start of winter season | 76.1 | 31.7 | 81.5 | 34.7 | 0.704 | 78.8 | 32.6 |
Day of gestation (days) – end of winter season | 213.1 | 31.7 | 218.5 | 34.7 | 0.704 | 215.8 | 32.6 |