Veterinary Medicine International / 2011 / Article / Tab 2

Research Article

Intensity of Oestrus Signalling Is the Most Relevant Indicator for Animal Well-Being in High-Producing Dairy Cows

Table 2

Distribution (frequency and %) of dairy cattle according to oestrous intensity and relative progesterone (P4) levels in blood serum on day 0 for all animals, as well as disclosed by category (dairy heifers (H) or first-parity cows (C1 cows)) or breed (Swedish Holstein SH or Swedish Red SR including both H and C1 cows).

Oestrous intensity
Progesterone at d0

All (67)14/33 (42)ab9/33 (27)ab9/32 (28)ab8/14 (57)a3/14 (21)ab3/14 (21)ab9/20 (45)a8/20 (40)a3/20 (15)b
Heifers (37)7/15 (47)a3/15 (20)a4/14 (29)a2/5 (40)a1/5 (20)a2/5 (40)a6/17 (35)a8/17 (47)a3/17 (18)a
C1 cows (30)7/18 (39)a6/18 (33)a5/18 (28)a6/9 (67)a2/9 (22)a1/9 (11)a3/3 (100)a
SH (36)8/16 (50)a5/16 (31)a3/16 (19)a4/7 (57)a1/7 (14)a2/7 (29)a7/13 (54)a3/13 (23)a2/12 (17)a
SR (31)6/17 (35)a4/17 (24)a7/17 (41)a4/7 (57)a2/7 (29)a1/7 (14)a2/8 (25)a5/8 (63)a1/8 (13)a

a, bdifferent superscripts differ significantly, 𝑃 < 0 . 0 5 (Fisher’s exact test), between P4 (all animals) and between animal category (H and C1) and breed (SH and SR), for P4 within oestrous intensity level.

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