Summary of Service Rendered 



Applications received 377 



Applications cancelled 15 



Flocks tested 362 



Chicken flocks 323 



Chicken and turkey flocks 9 



Turkey flocks 30 



Number of tests •• • . 662,995 



Chickens: 



Routine 644,676 



Experimental 9,557* 



Fowl other than chickens: 



Routine 8,522 



Experimental 240** 



Owners receiving necropsy service 23 f 



Necropsies of reacting birds 47 f 



* Includes 5,096 paratyphoid tests. 

 ** Includes 232 paratyphoid tests, 

 tincludes one turkey flock. 

 t Includes three turkeys. 



Distribution of Tests and Reactors 



Table 1 gives the distribution of tests and reactors by counties and by breeds. 

 A total of 649,137 chicken samples was submitted for test from 12 counties, and 

 3,113 or 0.48 percent reactors were detected. Three counties revealed no reactors, 

 six had less than one percent, and three had between one and two percent. Wor- 

 cester, Middlesex, and Bristol Counties led in the number of samples tested. 



Of the total number of samples tested, 588,651 were obtained from females 

 (hens 64,185 and pullets 524,466) and 60,486 from males. The percentages of 

 the reactors were 0.05 among the hens, 0.48 among the pullets, arid 0.45 among 

 the males. 



The following breeds and varieties were tested: Bantam, Barred Plymouth 

 Rock, Black Langshan, Brahma, Columbian Plymouth Rock, Crosses, New 

 Hampshire, Rhode Island Red, S'lver Laced Wyandotte, White American, White 

 Cornish, White Leghorn, W'hite Plymouth Rock, and White Wyandotte. Rhode 

 Island Red and Barred Plymouth Rock are the predommating breeds. Reactors 

 were detected among the Barred Plymouth Rocks, Crosses, New Hampshires, 

 Rhode Island Reds, and White Plymouth Rocks. 



Annual Testing of Flocks 



Table 2 shows the results among flocks tested for the first time, intermittently, 

 for two consecutive ^-ears, and for three or more consecutive years. 



Flocks tested for the first time numbered 27, representing 22,938 birds which 

 revealed 6.34 percent reactors. A considerable decrease in the number of flocks 

 and number of birds was observed in comparison with the previous season. The 

 amount of infection showed a considerable increase over the previous season 

 ' (1941-42, 0.04 percent; and 1942-43, 6.34 percent). The reactors were confined 

 to three flocks. Twenty-four flocks representing 19,541 birds were found to be 

 non-reacting. 



In the intermittent group, 19 flocks representing 18,363 birds, were tested. In 

 comparison with the previous season, a marked decrease is noted in the number 

 of flocks and birds tested. The percentage of infection, 1.05, was higher than 



