Table 1. Characteristic of treatment groups.

Treatments (g Kg-1 DM)	Genetic Group	Number of Cows	DIM		Milk Yield (L/day)
156	3/4 H	3	122.33	±21.54	21.90	±0.86
	7/8 H	3	84.66	±13.20	19.31	±3.58
139	3/4 H	3	115.33	±17.15	23.90	±0.90
	7/8 H	2	105.00	±35.00	18,76	±3.48
132	3/4 H	2	113.00	±20.00	20.40	±1.19
	7/8 H	3	94.33	±4.92	20.98	±0.91
127	3/4 H	2	111.50	±18.50	22.84	±5.12
	7/8 H	4	102.00	±18.71	23.33	±2.82
Total		22	105.30	±22.62	21.55	±3.19

H: proportion of Holstein on genetic composition; DIM: days in milk. Data are average ±SD.