Minnesota DHI Yardstick for 2002

Holsteins by RHA Milk

Current Test Production	All Herds	<15,000	15-16,999	17-18,999	19-20,999	21-22,999	23-24,999	>25,000
Number of Herds	2,620	162	320	535	643	488	309	163
Total Adult Cows on DHIA	91	53	59	67	86	113	136	141
Percent Cows in Milk	85	82	84	85	85	85	85	86
Average Days in Milk	191	215	205	194	188	182	185	182
Average Pounds of Milk	63	44	51	58	64	70	75	83
RHA Pounds of Milk	19,932	13,231	16,108	18,105	20,000	21,935	23,847	26,405
Fat Test Percent	3.81	3.96	3.88	3.89	3.79	3.77	3.71	3.70
Protein Test Percent	3.07	3.10	3.08	3.09	3.06	3.06	3.04	3.03
Pooled Bulk SCC	388	520	450	431	375	340	325	314
Average Linear Score	3.33	3.84	3.57	3.49	3.27	3.16	3.08	2.98
Current Percent High Linear SCC	35	46	39	38	34	32	31	29
Current Percent New Infections	17	24	18	19	16	16	15	14
Management Level Milk	68	48	55	62	68	74	79	87
Average Genetic Values
Percent AI Service Sires	84	72	76	80	86	88	89	90
Percentile Rank, Service Sires	68	62	64	67	69	71	71	70
Percentile Rank, 1st Lact Sires	39	33	35	36	39	42	42	44
Percentile Rank, All Cows Sires	30	21	25	27	30	33	34	35
Percentile Rank, All Cows	45	29	36	41	45	51	53	56
1st Lactation vs All Cows
Percent Herd Lact=1	36	32	33	34	36	37	37	39
Aver Age Freshening, 1st Lact	27	28	28	27	26	26	26	25
Aver Age Freshening, All Cows	45	50	48	46	45	43	43	42
Percent Sire ID, 1st Lactation	88	76	83	88	89	92	91	93
Percent Sire ID, All Cows	72	51	60	67	74	80	82	86
Average Peak Milk lb, 1st Lact	70	53	60	66	70	75	80	86
Average Peak Milk lb, All Cows	82	62	71	77	83	88	95	102
Peak Ratio - 1st Lact/Other	0.78	0.81	0.79	0.79	0.78	0.77	0.77	0.77
Percent Culled, 1st Lact	20	24	22	21	20	20	18	19
Percent Culled, All Cows	25	26	25	26	25	26	25	25
Annual Turnover Rate	36	36	35	36	36	37	36	36
Days Dry Berfore Calving
Average Days Dry	65	70	66	65	64	63	64	63
Percent Dry Less Than 40 Days	12	22	17	13	11	9	8	7
Percent Dry 40 to 70 Days	67	48	57	64	69	72	74	75
Percent Dry More Than 70 Days	24	34	30	26	23	21	20	20
Reproduction
Apparent Voluntary Wait Period	61	75	71	65	60	58	56	56
Average Days to 1st Service	123	181	145	127	118	107	105	104
21 Day Heat Detection Rate	31	18	24	28	32	36	38	40
AI Conception Rate	40	46	40	42	40	39	36	38
Pregnancy Rate (AI+Bull)	12	8	9	11	12	13	13	14
PG Calving Interval - Average	14.3	14.8	14.6	14.5	14.3	14.1	14.2	14.0
PG Calving Interval - Stnd Dev	2.6	2.5	2.9	3.8	2.6	2.6	2.0	2.1
Management Calving Interval	15	16	15	15	15	14	14	14
Feed Costs
Current Average Feed Cost	$2.76	$2.30	$2.51	$2.58	$2.77	$2.89	$3.10	$3.30
Current Feed Cost per cwt Milk	$5.26	$6.59	$6.06	$5.30	$5.12	$4.91	$4.82	$4.70
Holsteins Herds tested between Nov 15, 2001 and Jan 1, 2002.