The effect of Seasonal heat stress on oxidants–antioxidants biomarkers, trace minerals and acute-phase response of peri-parturient Holstein Friesian cows supplemented with adequate minerals and vitamins with and without retained fetal membranes

Bulletin of the National Research Centre

Table 4 The effects of season, BCS, Type of placental drop and their interactions on productive and reproductive parameters

Dependent variable	Corrected model	Placental drop	Season	BCS	Placental * Season	Season * BCS	Placental * BCS
Services/conception	0.000	0.004	0.0001	0.0001	0.0001	0.618	0.0001
Days open	0.000	0.404	0.017	0.006	0.783	0.686	0.0001
Milk yield	0.000	0.001	0.002	0.241	0.005	0.0001	0.002
Total proteins	0.000	0.138	0.410	0.003	0.068	0.269	0.003
Globulin	0.004	0.015	0.545	0.008	0.290	0.975	0.117
Albumin/Globulin	0.042	0.047	0.673	0.005	0.788	0.856	0.797
NO	0.000	0.079	0.0001	0.311	0.0001	0.285	0.0001
GSH	0.000	0.402	0.572	0.022	0.010	0.518	0.010
Haptoglobin	0.000	0.884	0.002	0.670	0.215	0.468	0.649
Estradiol	0.000	0.000	0.020	0.045	0.0001	0.0001	0.822
Phosphorus	0.005	0.561	0.475	0.355	0.004	0.078	0.004
Iron	0.000	0.245	0.0001	0.656	0.091	0.448	0.091
Copper	0.000	0.045	0.004	0.443	0.086	0.976	0.678