Paraoxonase-1 activity and lipid profile in dairy cows with subclinical and clinical mastitis

Figures & data

Table 1. Serum TGL, TCH and HDL-C, Ca concentrations and PON1 activity in the cows suffering from CLM, the cows with SCM and mastitis-free control cows (CTL).

Parameter	Units	Experimental group of cows*
		CLM	SCM	CTL
PON1	U/L	235.53 ± 11.33^a	263.90 ± 7.99^a	304.60 ± 11.57^b
HDL	mmol/L	2.97 ± 0.13^a	4.03 ± 0.13^b	4.25 ± 0.15^b
PON1/HDL	–	81.06 ± 4.05^a	67.17 ± 2.66^b	73.59 ± 3.32^b
TGL	mmol/L	0.15 ± 0.01^a	0.12 ± 0.01^a	0.11 ± 0.00^a
TCH	mmol/L	5.24 ± 0.27^a	7.53 ± 0.31^b	7.88 ± 0.29^b
Ca	mmol/L	2.39 ± 0.03^a	2.49 ± 0.02^b	2.54 ± 0.02^b
Days of lactation	days	210.30 ± 21.97^a	226.00 ± 49.45^a	238.93 ± 20.63^a
Daily milk yield (average per week)	L	26.28 ± 2.85^a	27.34 ± 1.54^a	27.69 ± 1.16^a

*Groups comprised 30 animals each. Significantly different values (P < 0.05) in the same column are marked with different superscript letters.

Table 2. Spearman correlation coefficient and P value between parameters of lipid metabolism (TCH, HDL, TGL) and PON1 activity.

	PON1	TCH	HDL	TGL	PON/HDL
PON1		n.s.	n.s.	n.s.	0.47 <0.0001
TCH	n.s.		0.98 <0.0001	n.s.	−0.51 <0.0001
HDL	n.s.	0.98 <0.0001		n.s.	−0.53 <0.0001
TGL	n.s	n.s	n.s.		n.s
PON/HDL	0.47 <0.0001	−0.51 <0.0001	−0.53 <0.0001	n.s

n.s., non-significant.