Products and 
Classifications 
All products handled by participants listed in this publication meet the specific require- 
ments for a “U.S. Pullorum—Typhoid Clean” classification. The combined letter and 
numeral symbols shown in the fourth column identify the particular breed, strain, or 
trade name of the participant’s products (see tables 4 and 5 in the appendix). Crosses 
are designated by combining the letter symbols and code numbers of both parent 
stocks, listing the male first. Thus a t9t18 code would indicate that the participant was 
handling a cross consisting of a Hubbard male mated to a Pilch female. Additional 
classifications for which these products qualify are identified in column five by MG, 
“U.S. M. gallisepticum Clean”; MS, “U.S. M. synoviae Clean”; MM, “U.S. M. 
meleagridis Clean”; SAN MON, “U.S. Sanitation Monitored”; and SE, “U.S. Salmonella 
enteritidis Monitored.” 
