State and National Standardized Lactation Averages by Breed

AIPL RESEARCH REPORT
K2-01 (2-03)

State and National Standardized Lactation Averages by Breed for Cows Calving in 2001

R.L. Powell and A.H. Sanders
Animal Improvement Programs Laboratory, ARS-USDA, Beltsville, MD 20705-2350
301-504-8334 (voice) ~ 301-504-8092 (fax) ~ inquiry@aipl.arsusda.gov ~ http://aipl.arsusda.gov

Data for the 2003 State and national lactation averages report were from calvings in 2001. This is the second report to include actual true protein measurements. National averages for all prior years have been computed to reflect the change from reporting of crude protein to true protein. Data collected prior to May 1, 2000 were adjusted to true protein basis by subtracting 0.19 percent from the crude protein percentage.

Yield data that are used in national genetic evaluations of dairy cattle and in other U.S. Department of Agriculture research originate from herds that are enrolled in the Dairy Herd Improvement program. The test-day data, used by the Animal Improvement Programs Laboratory to determine lactation records, are processed and provided through dairy records processing centers.

Lactation records were calculated using the best prediction method and were standardized for age-parity, calving month, previous days open, and times milked per day. Records in progress and other records that were shorter than 305 days were extended to 305 days as part of the best prediction process. Component percentages were computed from average standardized yields for milk and components. Protein testing is at or near 100% except in California (89% for Holsteins and 92% for Red and Whites).

Only data used in the calculation of national genetic evaluations are included in the State and national averages. Thus, records beyond fifth lactation or by cows that lacked a first lactation record or valid sire identification were excluded. For other editing requirements, see complete evaluation documentation

The numbers of records and averages for yields and component percentages are in Tables 1 through 7 by State for Ayrshires, Brown Swiss, Guernseys, Holsteins, Jerseys, Milking Shorthorns, and Red and Whites. The numbers of records and national averages are in Table 8A-8F by breed for selected years.

Breed yields are different between this report and the herd-average report because this report uses standardized data, whereas herd averages are based on rolling actual data. Also, data for many cows that calve in 2001 also contribute to herd averages for 2001 and 2002. Finally, herd-average data do not have a restriction that they must be usable for national genetic evaluations. Relative yields among breeds will differ between the two reports because of breed differences in percentage of usable records and differences in age-parity factors.

Numbers of Jersey records increased by 2% (6% over five years) to an all-time high. Other breeds showed decreases. Brown Swiss, Holstein, and Milking Shorthorn numbers were lower for the previous year by 1 to 3%, and lower than five years earlier by 9, 8, and 6%. Corresponding declines were larger for Ayrshire, Guernsey, and Red and White, declining 7, 8, and 9% from the prior year and 26, 36, and 37% over five years. Milk yield increased to the highest average ever for each breed. Increases over last year ranged from 136 pounds for Red and Whites to 572 for Holsteins. Fat and protein yields were also at all-time highs for all breeds although percentages all declined slightly except for Holstein protein which increased by .06, attesting to its increasing market value.

Changes in the numbers of records and average yields result from many factors. Genetic change is expected to have a positive effect on yield, whereas feed availability and other operating costs, milk and beef prices, Government programs, and characteristics of herds entering and leaving eligible testing programs can affect production averages in either direction.

DHI Lactation Averages for Ayrshire

Table 1. Ayrshire State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	6	15,803	3.09	488	3.04	480	100
Arkansas	32	17,373	3.48	604	3.12	542	100
California	55	19,590	3.87	758	3.13	613	100
Colorado	17	19,753	3.87	764	3.29	651	100
Connecticut	92	18,779	4.03	758	3.22	604	100
Delaware	1	19,464	3.33	648	3.16	616	100
Florida	14	16,516	3.36	554	3.09	510	100
Georgia	36	16,652	3.70	616	3.25	542	100
Idaho	2	16,107	4.18	673	3.24	522	100
Illinois	232	18,317	3.73	683	3.14	575	100
Indiana	129	17,985	3.73	670	3.12	562	100
Iowa	482	18,580	3.86	718	3.14	583	100
Kansas	84	17,168	3.91	671	3.17	545	100
Kentucky	31	16,107	3.68	593	3.22	519	100
Louisiana	35	16,626	3.61	601	3.05	507	100
Maine	123	18,214	3.71	675	3.08	560	100
Maryland	285	20,303	3.96	804	3.12	633	100
Massachusetts	20	19,345	3.73	722	3.08	596	100
Michigan	43	19,357	3.93	761	3.10	599	100
Minnesota	197	16,567	3.81	630	3.08	511	100
Mississippi	2	15,948	3.65	583	3.20	511	100
Missouri	73	15,895	3.81	606	3.17	504	100
Nebraska	69	16,221	3.85	624	3.17	514	100
New Hampshire	142	18,617	3.83	714	3.10	578	100
New Jersey	38	19,753	4.45	878	3.22	637	100
New Mexico	290	14,798	3.75	555	3.16	468	100
New York	1204	17,839	3.85	688	3.09	551	100
North Carolina	71	14,482	3.87	561	3.01	436	100
North Dakota	10	16,111	3.69	594	3.11	501	100
Ohio	470	17,534	3.84	673	3.16	553	100
Oklahoma	72	20,398	3.56	726	3.01	615	100
Oregon	62	18,457	3.86	713	3.22	594	100
Pennsylvania	889	18,398	3.86	711	3.13	576	100
Rhode Island	36	14,994	4.31	647	3.14	471	100
South Carolina	42	14,892	3.64	542	3.07	457	100
South Dakota	2	15,200	3.91	595	3.10	472	100
Tennessee	32	17,292	3.78	654	3.10	535	100
Texas	10	18,330	3.98	730	3.30	605	100
Utah	16	15,148	4.47	678	3.34	507	100
Vermont	456	18,424	3.86	711	3.12	574	100
Virginia	46	17,050	3.79	646	3.08	525	100
Washington	32	18,110	3.93	712	3.20	580	100
West Virginia	61	15,156	3.80	576	3.11	471	100
Wisconsin	511	17,941	3.86	693	3.08	553	100
US	6552	17,878	3.84	687	3.12	558	100

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DHI Lactation Averages for Brown Swiss

Table 2. Brown Swiss State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	31	18,902	3.92	740	3.22	608	100
Arizona	238	23,545	3.87	911	3.18	748	100
Arkansas	111	15,857	3.65	579	3.32	527	100
California	474	22,029	3.91	860	3.36	740	>99
Colorado	82	20,596	3.91	805	3.24	668	100
Connecticut	33	18,786	3.93	738	3.27	614	100
Delaware	22	21,930	4.46	978	3.27	718	100
Florida	11	18,776	3.54	664	3.15	592	100
Georgia	50	18,617	4.03	750	3.31	615	100
Idaho	280	21,058	4.01	844	3.37	710	100
Illinois	575	20,908	4.05	848	3.33	696	100
Indiana	453	22,192	4.00	887	3.31	734	100
Iowa	1487	21,459	4.03	866	3.30	708	100
Kansas	196	20,927	3.85	805	3.33	697	100
Kentucky	132	18,105	3.81	689	3.35	606	100
Louisiana	24	16,176	3.58	579	3.19	516	100
Maine	38	16,871	3.76	635	3.26	550	100
Maryland	330	21,723	4.08	886	3.30	717	100
Massachusetts	59	19,098	4.10	783	3.31	632	100
Michigan	243	23,897	3.93	938	3.26	779	100
Minnesota	1128	20,380	3.98	811	3.25	663	100
Mississippi	6	20,678	3.36	695	3.04	628	100
Missouri	417	18,185	3.97	723	3.38	615	100
Montana	61	15,432	4.02	620	3.45	532	100
Nebraska	253	20,993	3.85	807	3.25	682	100
Nevada	3	24,260	4.01	974	3.45	837	100
New Hampshire	92	19,002	4.05	770	3.35	636	100
New Jersey	12	18,342	4.04	740	3.18	584	100
New Mexico	30	19,734	3.84	757	3.30	651	100
New York	899	19,976	4.00	800	3.28	654	100
North Carolina	87	18,192	3.97	722	3.23	588	100
North Dakota	56	18,104	3.90	706	3.34	605	100
Ohio	1470	21,039	4.11	865	3.33	700	100
Oklahoma	110	18,846	3.63	684	3.26	615	100
Oregon	229	21,894	4.06	888	3.31	725	100
Pennsylvania	1080	21,003	3.92	823	3.27	687	100
Puerto Rico	130	13,665	3.27	446	3.27	447	100
South Carolina	11	19,160	3.77	723	3.30	633	100
South Dakota	303	18,230	4.09	745	3.38	616	100
Tennessee	261	18,758	4.02	753	3.27	614	100
Texas	505	20,782	3.91	814	3.32	691	100
Utah	102	17,431	4.48	780	3.49	608	100
Vermont	288	20,789	4.07	845	3.22	670	100
Virginia	144	22,759	3.74	852	3.21	731	100
Washington	226	21,796	3.83	834	3.35	731	100
West Virginia	7	21,235	3.84	816	3.23	687	100
Wisconsin	2694	20,984	4.06	851	3.30	692	100
US	15473	20,694	4.00	827	3.30	683	>99

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DHI Lactation Averages for Guernsey

Table 3. Guernsey State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	2	19,023	3.88	738	3.26	620	100
Arizona	39	17,458	3.66	639	3.13	546	100
Arkansas	54	13,927	4.20	585	3.45	480	100
California	433	17,918	4.33	776	3.37	615	89
Connecticut	28	16,946	4.51	764	3.33	565	100
Delaware	2	17,187	3.97	683	3.13	539	100
Georgia	9	13,717	4.00	548	3.25	445	100
Idaho	23	16,091	4.32	695	3.52	566	100
Illinois	198	17,913	4.45	797	3.26	583	100
Indiana	404	16,227	4.39	712	3.33	540	100
Iowa	615	17,706	4.46	789	3.29	582	100
Kansas	43	14,809	4.22	625	3.24	480	100
Kentucky	58	15,785	4.04	637	3.28	518	100
Louisiana	100	14,098	4.39	618	3.38	477	99
Maine	32	15,435	4.53	699	3.41	527	100
Maryland	419	16,941	4.48	759	3.32	563	100
Massachusetts	6	16,197	4.35	704	3.30	535	100
Michigan	63	13,117	4.23	554	3.20	419	100
Minnesota	533	14,601	4.52	661	3.28	479	100
Missouri	287	14,534	4.35	632	3.40	494	100
Montana	36	18,266	4.19	766	3.24	591	100
Nebraska	80	16,989	4.28	728	3.25	553	100
New Hampshire	21	18,345	4.33	794	3.30	605	100
New York	566	15,751	4.48	706	3.27	515	100
North Carolina	93	16,631	4.42	735	3.26	543	100
North Dakota	1	18,989	3.35	636	3.06	581	100
Ohio	393	16,668	4.44	740	3.31	552	100
Oklahoma	66	16,259	4.02	654	3.26	530	100
Oregon	387	18,382	4.43	814	3.28	602	100
Pennsylvania	876	16,366	4.44	727	3.26	534	100
South Carolina	111	16,790	4.57	768	3.33	559	100
South Dakota	50	14,492	4.35	631	3.27	474	100
Tennessee	78	16,608	4.07	677	3.22	535	100
Texas	63	13,790	4.32	595	3.22	443	100
Utah	19	17,653	4.34	765	3.34	590	100
Vermont	182	15,534	4.48	696	3.26	506	100
Virginia	147	15,969	4.69	749	3.28	524	100
Washington	131	17,094	4.63	792	3.35	573	100
West Virginia	26	16,501	4.51	744	3.48	574	100
Wisconsin	2016	16,398	4.49	736	3.28	537	100
US	8690	16,410	4.44	728	3.29	540	>99

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DHI Lactation Averages for Holstein

Table 4. Holstein State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	1890	20,801	3.44	715	2.96	616	100
Arizona	19510	23,951	3.50	838	2.98	713	99
Arkansas	1691	20,279	3.42	693	3.00	609	100
California	325440	26,311	3.57	940	3.04	802	87
Colorado	11707	25,856	3.57	922	3.03	782	>99
Connecticut	7179	25,019	3.57	892	2.98	746	100
Delaware	2747	24,753	3.61	895	3.00	743	>99
Florida	6317	23,281	3.58	833	3.03	706	100
Georgia	9519	23,038	3.49	804	2.96	681	>99
Idaho	28990	26,395	3.53	931	3.06	807	>99
Illinois	24600	24,007	3.64	875	3.00	719	100
Indiana	18384	23,557	3.63	855	2.99	703	100
Iowa	40694	24,252	3.63	881	3.00	728	>99
Kansas	13150	23,595	3.66	865	3.03	716	100
Kentucky	7881	21,945	3.49	765	3.01	660	>99
Louisiana	3808	20,199	3.42	692	2.98	601	100
Maine	7121	24,909	3.62	902	3.00	747	100
Maryland	21968	24,203	3.76	910	3.00	725	100
Massachusetts	5796	25,000	3.63	908	2.99	747	100
Michigan	58126	25,544	3.75	959	2.95	754	>99
Minnesota	126970	23,804	3.69	879	2.98	709	>99
Mississippi	3881	22,855	3.64	832	2.95	675	>99
Missouri	12421	21,425	3.59	769	3.06	655	100
Montana	3364	26,237	3.45	906	2.96	776	100
Nebraska	11408	23,804	3.66	872	3.05	725	100
Nevada	3070	25,856	3.49	902	3.01	778	>99
New Hampshire	6899	26,843	3.62	972	2.99	802	100
New Jersey	4511	24,446	3.80	928	2.99	730	100
New Mexico	12272	25,195	3.54	891	3.03	764	>99
New York	159179	24,385	3.67	894	2.95	720	>99
North Carolina	13481	24,429	3.59	878	2.96	724	100
North Dakota	3048	22,691	3.60	817	2.98	675	100
Ohio	43977	24,124	3.69	891	3.02	727	100
Oklahoma	4254	22,486	3.34	752	3.02	678	100
Oregon	17605	26,553	3.67	974	3.02	802	>99
Pennsylvania	170436	24,494	3.63	888	2.97	726	>99
Puerto Rico	3218	15,103	2.85	430	2.96	447	100
Rhode Island	140	24,175	3.65	883	3.00	726	100
South Carolina	5898	23,588	3.65	861	2.97	700	100
South Dakota	7301	23,328	3.76	878	3.01	702	>99
Tennessee	9339	22,654	3.49	790	2.94	666	>99
Texas	26189	23,522	3.60	846	3.07	722	>99
Utah	13958	26,069	3.56	927	3.00	783	100
Vermont	24500	24,808	3.66	908	2.98	739	100
Virginia	36526	24,201	3.59	868	2.96	717	100
Washington	34567	26,597	3.63	965	3.02	803	100
West Virginia	3470	23,089	3.61	833	3.01	694	100
Wisconsin	210589	25,211	3.69	931	2.98	753	>99
Wyoming	1	26,405	3.47	917	2.93	773	100
US	1588990	24,889	3.63	904	3.00	745	97

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DHI Lactation Averages for Jersey

Table 5. Jersey State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	1708	15,699	4.51	708	3.62	568	100
Arizona	5451	17,856	4.57	816	3.51	627	100
Arkansas	584	14,693	4.55	668	3.66	537	100
California	28711	18,653	4.59	855	3.61	675	>99
Colorado	143	18,500	4.74	876	3.60	665	100
Connecticut	368	17,505	4.71	824	3.51	614	100
Delaware	15	18,064	5.18	936	3.64	657	100
Florida	182	15,321	4.29	658	3.47	532	100
Georgia	795	16,141	4.21	680	3.45	557	100
Idaho	2528	17,564	4.48	787	3.65	642	100
Illinois	977	16,578	4.63	768	3.59	594	100
Indiana	1002	16,543	4.50	744	3.51	581	100
Iowa	2530	17,502	4.57	800	3.53	617	100
Kansas	870	16,360	4.47	731	3.56	582	100
Kentucky	1274	15,783	4.43	699	3.58	565	100
Louisiana	300	14,668	3.98	584	3.49	513	100
Maine	722	16,543	4.58	758	3.54	586	100
Maryland	930	17,251	4.68	807	3.60	621	100
Massachusetts	753	16,910	4.61	780	3.53	596	100
Michigan	1610	16,324	4.59	749	3.52	574	100
Minnesota	1907	16,026	4.67	748	3.55	569	100
Mississippi	438	17,112	4.36	747	3.56	609	100
Missouri	1338	15,658	4.40	689	3.58	560	100
Montana	5	16,111	4.20	677	3.75	604	100
Nebraska	319	17,445	4.47	779	3.59	627	100
Nevada	414	19,467	4.70	915	3.47	676	100
New Hampshire	662	18,285	4.57	835	3.57	653	100
New Jersey	107	16,284	5.00	814	3.55	579	100
New Mexico	274	19,939	4.34	865	3.62	721	100
New York	5494	17,168	4.61	792	3.54	607	100
North Carolina	1884	19,203	4.39	843	3.46	665	100
North Dakota	59	14,281	4.26	608	3.52	502	100
Ohio	6820	17,099	4.73	809	3.59	614	100
Oklahoma	411	15,910	4.39	699	3.54	564	100
Oregon	6839	18,738	4.65	871	3.61	676	100
Pennsylvania	6974	16,529	4.67	773	3.53	583	100
Puerto Rico	173	11,347	4.05	459	3.66	415	100
Rhode Island	2	16,361	4.60	753	3.57	584	100
South Carolina	2047	18,157	4.56	828	3.49	634	100
South Dakota	246	18,595	4.89	910	3.47	645	100
Tennessee	2290	16,498	4.53	747	3.50	578	100
Texas	5612	15,145	4.45	675	3.58	542	100
Utah	1035	17,280	4.49	775	3.64	629	>99
Vermont	2952	16,373	4.66	763	3.54	579	100
Virginia	1190	17,508	4.57	801	3.56	623	100
Washington	2041	18,087	4.57	826	3.61	654	100
West Virginia	269	18,647	4.42	825	3.62	676	100
Wisconsin	5679	17,148	4.71	808	3.57	613	100
US	108934	17,472	4.59	802	3.57	625	>99

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DHI Lactation Averages for Milking Shorthorn

Table 6. Milking Shorthorn State and national standardized lactation averages for cows calving in 2001 with
records used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Alabama	2	13,908	3.50	487	3.21	447	100
Arizona	206	13,862	3.40	471	2.99	414	100
Arkansas	20	17,145	3.53	606	3.10	532	100
California	116	19,061	3.29	627	3.05	581	100
Colorado	3	20,820	3.59	747	3.15	656	100
Connecticut	2	15,530	3.65	567	3.09	480	100
Idaho	65	23,325	3.32	773	3.09	720	100
Illinois	21	15,664	3.52	552	3.09	485	100
Indiana	41	14,914	3.46	515	3.17	473	100
Iowa	137	14,935	3.71	554	3.05	455	100
Kansas	33	19,156	3.66	701	3.18	610	100
Maine	33	19,196	3.66	703	3.04	584	100
Maryland	13	15,645	3.58	560	3.09	483	100
Massachusetts	12	19,418	3.36	653	2.94	572	100
Michigan	3	20,679	3.91	809	3.21	664	100
Minnesota	497	17,004	3.68	626	3.05	519	100
Missouri	81	17,174	3.70	635	3.21	552	100
Nebraska	14	15,145	3.66	554	3.21	486	100
New Hampshire	59	19,297	3.60	694	3.05	589	100
New York	64	15,749	3.54	557	3.10	489	100
North Carolina	10	15,361	3.82	586	3.18	489	100
North Dakota	9	15,725	3.80	598	3.13	492	100
Ohio	95	13,974	3.32	464	3.02	422	100
Oklahoma	188	16,135	3.45	557	3.07	495	100
Oregon	48	17,559	3.78	664	3.18	559	100
Pennsylvania	54	18,002	3.71	668	3.04	547	100
South Dakota	61	15,588	3.67	573	3.10	483	100
Tennessee	1	10,810	3.67	397	3.32	359	100
Texas	50	19,022	3.57	679	3.20	609	100
Utah	45	14,761	3.66	540	3.22	475	100
Vermont	48	17,257	3.67	633	3.03	522	100
Virginia	12	20,501	3.33	683	3.02	620	100
Washington	80	20,623	3.47	716	3.03	624	100
Wisconsin	200	18,698	3.69	690	3.05	570	100
US	2323	17,008	3.57	608	3.07	522	100

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DHI Lactation Averages for Red & White

Table 7. Red & White State and national standardized lactation averages for cows calving in 2001 with records
used in national genetic evaluations.

	Records	Milk	Fat		Protein
State	(no.)	(lb)	(%)	(lb)	(%)	(lb)	Reporting
Arizona	1	29,185	3.67	1071	2.94	859	100
Arkansas	2	23,440	2.83	663	2.98	700	100
California	321	21,711	3.68	800	3.07	659	92
Colorado	8	23,236	3.34	776	2.97	690	100
Connecticut	3	23,277	3.40	792	2.83	659	100
Florida	1	21,907	3.46	757	2.93	642	100
Georgia	1	23,934	3.47	831	2.79	667	100
Idaho	30	26,449	3.54	937	3.10	821	100
Illinois	106	22,369	3.71	831	2.99	669	100
Indiana	22	22,133	3.84	849	2.96	655	100
Iowa	48	25,236	3.66	923	2.98	751	100
Kansas	9	21,533	3.56	767	3.09	665	100
Kentucky	44	19,628	3.71	728	3.06	602	100
Maryland	31	21,849	3.85	840	2.89	632	100
Massachusetts	7	18,546	4.04	750	3.09	573	100
Michigan	462	24,044	3.67	883	2.99	719	100
Minnesota	380	22,812	3.67	838	2.92	667	100
Missouri	4	19,015	3.46	658	2.89	549	100
Nebraska	2	23,325	3.47	809	2.83	661	100
New Hampshire	2	23,757	3.96	941	3.10	736	100
New Jersey	2	19,711	3.61	712	2.85	563	100
New York	371	21,432	3.71	795	2.96	634	100
North Carolina	10	19,021	3.50	666	2.98	567	100
North Dakota	7	21,886	3.58	783	3.08	673	100
Ohio	50	19,115	3.70	708	2.99	571	100
Oklahoma	8	17,474	3.35	586	2.97	518	100
Oregon	28	24,027	3.62	871	3.00	722	100
Pennsylvania	324	23,492	3.65	856	2.98	700	100
Puerto Rico	65	14,502	2.85	413	3.01	436	100
South Carolina	173	26,300	3.64	957	3.05	803	100
South Dakota	1	24,834	3.12	776	2.82	701	100
Tennessee	1	17,839	3.90	695	3.06	546	100
Texas	2	21,608	3.67	793	2.96	639	100
Utah	1	17,523	3.74	655	3.54	620	100
Vermont	16	21,806	3.59	783	2.85	621	100
Virginia	251	24,157	3.63	877	2.99	721	100
Washington	8	22,653	3.55	805	2.95	669	100
Wisconsin	776	23,584	3.64	859	2.93	691	100
US	3578	22,981	3.65	839	2.97	683	>99

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DHI Lactation Averages Over Time

Tables 8A-8F. Summary of national standardized lactation averages

for cows with records used in national genetic evaluations.

	Table 8A. Number of Records
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	13,465	11,576	9,526	8,824	8,176	7,617	7,399	7,035	6,552
Brown Swiss	17,236	17,717	17,721	16,977	16,245	15,499	15,677	15,704	15,473
Guernsey	38,364	25,805	15,420	13,454	11,944	10,796	10,273	9,406	8,690
Holstein	1,109,758	1,720,127	1,769,002	1,722,958	1,701,669	1,641,948	1,668,927	1,624,058	1,588,990
Jersey	63,305	99,416	105,672	102,559	100,213	99,853	104,460	106,837	108,934
Milking Shorthorn	2,320	2,684	2,662	2,483	2,445	2,326	2,436	2,407	2,323
Red and White	900	5,588	6,281	5,673	5,242	4,595	4,297	3,927	3,578

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	Table 8B. Milk (lbs)
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	13,144	14,799	15,684	15,647	16,611	16,932	17,424	17,389	17,878
Brown Swiss	14,172	16,250	17,493	17,818	18,782	19,386	20,148	20,300	20,694
Guernsey	11,666	13,297	14,051	14,177	15,132	15,546	15,963	16,043	16,410
Holstein	17,566	20,178	21,618	21,926	23,143	23,675	24,380	24,517	24,889
Jersey	11,437	13,407	14,842	15,097	15,838	16,294	16,940	17,038	17,472
Milking Shorthorn	11,560	14,011	15,341	15,464	16,007	16,109	16,704	16,548	17,008
Red and White	16,470	18,832	20,161	20,310	21,423	22,019	22,732	22,845	22,981

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	Table 8C. Fat (%)
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	3.88	3.85	3.86	3.86	3.86	3.86	3.87	3.86	3.84
Brown Swiss	4.06	3.98	4.01	4.01	4.01	3.98	4.01	4.01	4.00
Guernsey	4.60	4.49	4.49	4.48	4.47	4.44	4.47	4.46	4.44
Holstein	3.61	3.61	3.64	3.63	3.62	3.63	3.65	3.64	3.63
Jersey	4.84	4.73	4.64	4.64	4.64	4.62	4.61	4.60	4.59
Milking Shorthorn	3.69	3.58	3.58	3.58	3.59	3.55	3.57	3.59	3.57
Red and White	3.62	3.67	3.68	3.69	3.66	3.64	3.64	3.66	3.65

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	Table 8D. Fat (lbs)
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	510	570	605	605	642	653	674	671	687
Brown Swiss	576	646	701	715	752	771	807	814	827
Guernsey	536	598	630	635	676	690	713	716	728
Holstein	633	729	786	798	838	859	890	893	904
Jersey	553	634	689	700	734	753	781	784	802
Milking Shorthorn	426	502	549	554	574	572	596	595	608
Red and White	596	692	742	750	785	801	828	837	839

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	Table 8E. Protein (%)
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	.	3.16	3.13	3.13	3.12	3.11	3.13	3.13	3.12
Brown Swiss	.	3.33	3.32	3.32	3.32	3.30	3.31	3.31	3.30
Guernsey	.	3.30	3.27	3.29	3.30	3.29	3.31	3.31	3.29
Holstein	.	2.94	2.94	2.94	2.96	2.96	2.99	3.00	3.00
Jersey	.	3.60	3.56	3.56	3.55	3.55	3.57	3.58	3.57
Milking Shorthorn	.	3.09	3.07	3.06	3.07	3.06	3.09	3.10	3.07
Red and White	.	2.95	2.94	2.95	2.97	2.96	2.97	2.98	2.97

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	Table 8F. Protein (lbs)
	Calving Year
Breed	1980	1990	1995	1996	1997	1998	1999	2000	2001
Ayrshire	.	468	491	490	518	527	545	545	558
Brown Swiss	.	541	581	592	623	639	667	672	683
Guernsey	.	439	460	466	499	511	528	531	540
Holstein	.	592	636	646	683	701	727	733	745
Jersey	.	482	529	537	562	579	605	610	625
Milking Shorthorn	.	433	471	474	492	493	516	512	522
Red and White	.	555	594	599	637	650	675	680	683

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