Adaptability of Polish Red cows to extensive conditions

BMC Veterinary Research

Table 3 Age and physiological status of the cows

Parameter	Experimental group				p-value	Total
	EXT		TRAD			Total
	X	SD	X	SD		X	SD
Number of animals	11		11			22
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

Note: Experimental group EXT – Diet based on straw and meadow hay; Experimental group TRAD – Diet based on haylage from permanent grassland and meadow hay

ISSN: 1746-6148