Excerpt from Dairy Herd Improvement Letter, 1973, Vol. 51 Table 23 is the list of names and addresses of AI organizations reporting data to the usda. A list of

Excerpt from Dairy Herd Improvement Letter, 1974, Vol. 52 Table 9 is a list of names and addresses of Extension Dairymen advising on dairy cattle breeding progr

Excerpt from Dairy Herd Improvement Letter, Vol. 49: May-June, 1973 Figures for Official dhi in table 4 indicate that there are more herds and cows on test as o

Excerpt from Dairy Herd Improvement Letter, Vol. 49: March-April 1973 A summary of the numbers of lactation records reported since 1957 is given in Table 2. The

Excerpt from Dairy Herd Improvement Letter, Vol. 53 Fourteen States had increases in fat production of 28 to 58 pounds on cows, and 14 States had increases of 2