Mimeo DH - 105
Revised April - 1965

AI SIRE SUMMARIES - FEBRUARY 1965

The AI sires listed herein have daughters from AI service on test with DHIA or DHIR records in Indiana and are reported as having semen available. Records of production of daughters of these sires are shown in comparison with their non-paternal herdmates calving in the same season of the year. Data reported for daughters with herdmates includes records from states other than Indiana.

For your convenience in use of this mimeo, sires are listed by breeds and in numerical order of registration number. Total daughters with records are shown with the number of states in which records were made.

Average production of all AI daughters tested is listed. Next appears the number of tested daughters with herdmates and the average production of the herdmates. Changes in level of production between daughters and herdmates are shown under the column headed "Difference."

A minus (-) indicates that the daughters of the sire produced less than their herdmates.
The predicted average is an indicated averaqe level of production at which the sire would under wide use and under all types of feeding and management conditions be expected to maintain production from a genetic viewpoint.

Thus a sire with a large number of daughters in many herds and states with a large increase in both milk and butterfat production would be expected to provide satisfactory genetic improvement for a breeder.

Lactation records reported include only those resulting from calving dates prior to January 30, 1964.

Sires now listed with less than 20 daughters may show a marked change in daughter-herdmate difference as additional records are completed and summarized. Additional information on these and other AI service sires is available in the DHIA Sire Summary List. This list is available at your County Extension Office.
PERFORMANCE OF ACTIVE Al SIRES WITH DAUGHTERS IN INDIANA - FEBRUARY - 1965
Breed	Total	                     Milk	Yield	            Fat Yield	
		Maintained or Increased	Decreased	Maintained or Increased	Decreased
Ayrshire	4	3	1	3	1
Brown Swiss	21	12	9	12	9
Guernsey	53	30	23	32	20
Holstein	179	105	74	108	68
Jersey	38	19	19	21	17
Milking Shorthorn	2	0	2	0	2
Total	297	169	128	176	117
		56.9%	43.1%	59.3%	39.4%
N. J. Moeller and S. M. Gregory, Extension Dairyman
Cooperative Extension Work in Agriculture and Home Economics State of Indiana, Purdue University and the United States Department of Agriculture Cooperating. H. G. Diesslin, Director, Lafayette, Indiana. Issued in furtherance of the Acts of May 8 and June 30, 1914.