42 



BULLETIX 51, U. S. DEPARTMENT OF AGRICULTURE. 



During the interval between May 4 and "August 30, 1912, 9 sam- 

 ples of whites, 9 of yolks, and 25 of whole eggs were taken from 

 the product obtained from seconds, the different lots varying in size 

 from 6 to 30 dozen eggs. During the process of breaking care was 

 taken to discard all eggs which, fi'om appearance or odor, were 

 abnormal. The first five samples given in Table 15 under the sec- 

 tion devoted to whole eggs, and the first four in the part assigned 

 to whites and yolks, represent the product broken from small and 

 oversized eggs. The maximum count of organisms per gram was 

 34,000 in the whole eggs and 85,000 in the whites and yolks. 



The counts of the product from small and oversized eggs were 

 no higher than those found in the liquid eggs broken from July and 

 August firsts ; in fact, the amount of ammoniacal nitrogen in the for- 

 mer was lovfer. The chemical results show, therefore, that the con- 

 tents of the spring seconds were fresher than the summer firsts. 



The samples taken after June 1, 1912, represent the small and 

 oversized eggs sorted from receipts by inspection and also those 

 showing incipient deterioration as observed by the candle. An 

 observation of the laboratory results in Table 15 shows a general 

 trend toward higher bacterial counts and greater amounts of am- 

 moniacal nitrogen as the season advances. 



. • Table 15. — Seconds. 



WHOLE EGGS. 



Sam- 





Date of 



ple 



Source. 



collec- 



No. 





tion. 







1912. 



4245 



Fl 



May 4 



4249 



D 1 



May 6 



4253 



D 1 



May 7 



4264 



D 1 



...do 



4411 



D2 



May 27 



4578 



D3 



Tune 19 



4033 



F4 



.Tune 28 



4C94 



D4 



July 9 



4097 



D4 



...do 



4708 



D4 



July 10 



4710 



D4 



...do 



4803 



r5 



July 22 



4^33 



F5 



July 24 



4-)45 



EO 



Aug. 9 



4957 



F6 



Aug. 12 



4372 



FO 



Aug. 14 



41002 



D 



Aug. 19 



41018 



D 



Aug. 20 



41019 



D 



...do 



41029 



DO 



Aug. 21 



41031 



DC 



...do 



410C0 



E 7 



Aug. 20 



41070 



E 7 



Aug. 27 



41080 



E 7 



Aug. 30 



Total number of 

 bacteria per 

 gram on plain 

 agar incubated 

 at— 



20° C. 



37° C. 



Number 

 of gas- 

 produc- 

 mg bac- 

 teria per 

 gram in 

 lactose 

 bile. 



Percentage 

 of ammoni- 

 acal nitro- 

 gen, Folin 

 method. 



Wet 

 basis. 



Dry 

 basis. 



Per- 

 cent- 

 age of 

 mois- 

 ture. 



Size of 

 sample. 



Remarks. 



300 



400 



34, 000 



23, 500 



COO 



2,500 



27, 500 



5,200 



10, 500 



3, 200 



110,000 



850, 000 



00, 000 



750,000 



2,000 



000, 000 



39, 500 



320, 000 



500, 000 



1,800,000 



3, 000, 000 



430, 000 



750 



1,100 



150 



400 



17, 000 



300 



950 



21,000 



300 



9,900 



2,100 



93, 000 



4,000 



7,000 



38,500 



550, 000 



in 1,000 



550, 000 



24, 000 



270, 000 



500, 000 



700, 000 



1, 000, 000 



55,000 



10: 



lOlO.OGlG 

 10 

 



0. 0048 



10, 000 











1,000 







1,000 







100 



1,000 







10 











100 



100, 000 

 100 



10 



10 

 100 .0020 



.0010 

 .0020 

 .0021 

 .0021 

 .0019 

 . 0015 

 . 0023 

 .0018 

 . 0023 

 . 0015 

 .0017 

 .0020 

 .0018 



.0017 

 .0020 



60.2^ 



.0059 

 . 0008 

 .0079 

 . 0075 

 .0007 

 . 0055 

 . 0083 

 . 0059 

 . 0084 

 . 0050 

 . 0001 

 .0072 

 .0057 



73.00 

 70. 45 

 73.. 35 

 71.81 

 71.84 

 72. 75 

 72. 38 

 09. 39 

 72. 03 

 70. 10 

 72. .-O 

 72. 31 

 OS. 25 



ISdozen.. 



...do 



...do 



..do 



10 pounds 

 6 dozen... 



..do 



12 dozen.. 



. 0001 

 .0074 



. 0095 



72. 53 

 72. 98 

 72. 7f 

 72. 5( 



12 dozen.. 

 ISdozen.. 



..do 



...do 



6 dozen... 

 30 dozen.. 

 ...do 



24 dozen.. 



25 pounds 



...do 



...do 



24 dozen.. 

 30 dozen.. 



...do 



...do 



I Less than 1 ,000. 



