Minnesota DHI Yardstick for 2003

Holsteins by RHA Milk

Current Test Production	<15,000	15-16,999	17-18,999	19-20,999	21-22,999	23-24,999	>25,000
Number of Herds	188	311	535	609	521	312	177
Total Adult Cows on DHIA	55	62	64	85	114	123	152
Percent Cows in Milk	83	86	86	87	87	87	87
Average Days in Milk	200	194	184	176	177	176	177
Average Pounds of Milk	36	44	49	55	60	65	73
RHA Pounds of Milk	13311	16127	18045	20005	21953	23888	26496
Fat Test Percent	3.90	3.90	3.80	3.80	3.80	3.70	3.70
Protein Test Percent	3.10	3.10	3.10	3.10	3.00	3.00	3.00
Pooled Bulk SCC	573	480	446	405	369	349	309
Average Linear Score	3.9	3.6	3.5	3.5	3.3	3.2	3.1
Current Percent High Linear SCC	47	41	39	36	34	32	29
Current Percent New Infections	18	16	15	13	13	12	10
Management Level Milk	48	57	62	67	74	79	87
Average Genetic Values Values
Average PTA Dollars, Service Sire	366	397	397	412	414	429	431
Average PTA Dollars, 1st lact.	213	251	281	282	288	296	305
Average PTA Dollars, Other cows	146	164	188	203	221	229	244
1st Lactation vs All Cows
Percent Herd Lact=1	32	34	35	36	38	39	39
Aver Age Freshening, 1st Lact	29	28	27	27	27	26	26
Aver Age Freshening, All Cows	61	60	58	57	55	54	52
Percent Sire ID, 1st Lactation	45	55	65	71	80	84	87
Percent Sire ID, All Cows	47	58	66	74	80	83	85
Average Peak Milk lb, 1st Lact	55	61	66	70	75	80	86
Average Peak Milk lb, All Cows	67	76	82	90	96	103	112
Peak Ratio - 1st Lact/Other	0.82	0.80	0.80	0.78	0.78	0.78	0.77
Percent Culled, 1st Lact	12	11	10	11	11	10	10
Percent Culled, All Cows	36	31	32	31	31	31	31
Annual Turnover Rate	33	32	33	33	34	34	33
Days Dry Before Calving
Average Days Dry	73	67	65	65	63	64	63
Percent Dry Less Than 40 Days	16	14	11	9	8	6	6
Percent Dry 40 to 70 Days	51	56	64	69	72	74	76
Percent Dry More Than 70 Days	33	29	25	23	20	20	17
Reproduction
Average Days to 1st Service	169	143	125	112	106	99	96
21 Day Heat Detection Rate	24	26	29	35	37	40	43
AI Conception Rate	39	41	40	39	38	37	36
Pregnancy Rate (AI+Bull)	11	11	12	14	14	14	15
PG Calving Interval - Average	15.1	16.1	15.4	15.1	14.9	14.7	14.6
Holsteins Herds tested between Nov 15, 2002 and Jan 1, 2003.