APPENDIX 313 



shall not be used, nor shall the cows be restored to the herd until 

 permission has been given by the veterinary inspector after a 

 careful physical examination. 



56. Notification of Veterinary Inspector. In the event of 

 the occurrence of any of the diseases just described between the 

 visits of the veterinary inspector, or if at any time a number of 

 cows become sick at one time in such a way as to suggest the 

 outbreak of a contagious disease or poisoning, it shall be the 

 duty of the dairyman to withdraw such sickened cattle from the 

 herd, to destroy their milk, and to notify the veterinary inspector 

 by telegraph or telephone immediately. 



57. Emaciated Cows. Cows that are emaciated from 

 chronic diseases or from any cause that in the opinion of the 

 veterinary inspector may endanger the quality of the milk, shall 

 be removed from the herd. 



BACTERIOLOGICAL STANDARDS 



58. Bacterial Counts. Certified milk shall contain less than 

 10,000 bacteria per cubic centimetre when delivered. In case a 

 count exceeding 10,000 bacteria per cubic centimetre is found, 

 daily counts shall be made, and if normal counts are not 

 restored within ten days the certificate shall be suspended. 



59. Bacterial counts shall be made at least once a week. 



60. Collection of Samples. The samples to be examined 

 shall be obtained from milk as offered for sale, and shall be 

 taken by a representative of the milk commission. The samples 

 shall be received in the original packages, in properly iced 

 containers, and they shall be so kept until examined, so as to 

 limit as far as possible changes in their bacterial content. 



61. For the purpose of ascertaining the temperature, a sep- 

 arate original package shall be used, and the temperature 

 taken at the time of collecting the sample, using for the purpose 

 a standardized thermometer graduated in the centigrade scale. 



62. Interval Between Milking and Plating. The examina- 

 tions shall be made as soon after collection of the samples as 

 possible, and in no case shall the interval between milking and 

 plating the samples be longer than forty hours. 



63. Plating. The packages shall be opened with aseptic 



