Field trial on glucose-induced insulin and metabolite responses in Estonian Holstein and Estonian Red dairy cows in two herds

Table 2 Least square means of glucose tolerance test (GTT) measurements for blood glucose and insulin in Estonian Holstein (EH) and Estonian Red (ER) cows.

	Breed
Parameter	EH	ER	SE^†	P
Insulin
Maximum increase relative to basal concentration; μIU/ml	39.3	57.8	9.9	0.19
Area under the curve (AUC); μIU/ml × min	875.3	1119.3	220.3	0.44
Glucose
Maximum increase relative to basal concentration; mmol/l	5.72	5.54	0.39	0.76
Area under the curve (AUC); mmol/l × min	122.87	104.15	10.41	0.22
Clearance rate (CR); %/min	1.42	1.52	0.10	0.48

† Due to the equal number of cows in breed groups the standard errors of least square means are the same for both breeds and only one value is shown

ISSN: 1751-0147