Blood neutrophil extracellular traps: a novel target for the assessment of mammary health in transition dairy cows

Table 4 Blood-milk-barrier integrity indices in serum and milk of dairy cows with low- and high-DSCC at week – 1 or + 1 relative to calving¹

Items	– 1 Wk²		+ 1 Wk²			P-value³
Items	Low DSCC	High DSCC	Low DSCC	High DSCC	SEM	Hs	Wk	Hs × Wk
In serum
Lactose, μmol/L	3.51^b	3.29^b	7.59^a	6.69^a	0.389	0.39	< 0.01	0.57
α-lactalbumin, μg/mL	0.83^b	0.94^ab	1.03^a	1.09^a	0.038	0.28	0.01	0.69
β-casein, μg/mL	4.72^b	5.33^a	5.12^ab	5.53^a	0.108	0.05	0.04	0.48
In milk
Na⁺/K⁺ ratio	-	-	0.250	0.253	0.0098	0.87	-	-
Bovine serum albumin, mg/mL	-	-	0.689	0.717	0.0185	0.46	-	-
Immunoglobulin G1, μg/mL	-	-	36.3	37.5	0.85	0.48	-	-
Immunoglobulin G2, μg/mL	-	-	25.2	28.3	0.94	0.09	-	-

¹The data are expressed as the mean ± SEM, n = 15. ^a,b,cP < 0.05
²DSCC Differential somatic cell count, – 1 Wk Week – 1 relative to calving, + 1 Wk Week + 1 relative to calving
³Hs Health status, Wk Sampling week, Hs × Wk Interaction between health status and sampling week

ISSN: 2049-1891