Section 2. Section two hundred and twenty-eight of said chapter ninety-four is hereby 

 amended by inserting after the word "deputy" in the fourth Hne the words: — , and said regis- 

 tration fee paid to him, — and also by inserting after the word " and " in the ninth Hne the words: 

 — , upon payment to him of said registration fee, — so as to read as follows: — Section 228. A 

 certified copy of the tag or label required by any provision of sections two hundred and twenty- 

 five to two hundred and thirty-five, inclusive, shall be filed for registration with the director or 

 his authorized deputy, and said registration fee paid to him, prior to January first in each year 

 for each brand of commercial feeding stuff to be sold or offered, exposed or kept for sale or dis- 

 tributed during the year beginning with said January first. The director or his authorized deputy 

 may thereafter permit a manufacturer, importer or other person to file a copy of the tag or label 

 of a brand of feeding stuff, and, upon payment to him of said registration fee, may register the 

 same for said year in accordance with the rules and regulations which are prescribed by the 

 director. 



Section 3. Said chapter ninety-four is hereby further amended by striking out section two 

 hundred and twenty-nine and inserting in place thereof the following: — Section 229. When the 

 certified copy of the tag or label of any Ijrand of commercial feeding stuff has been filed as "pro- 

 vided in the two preceding sections and said registration fee has been paid, the director or his 

 authorized deputy shall register such tag or label if he finds the same to be in accordance with the 

 requirements of sections two hundred and twenty-five to two hundred and thirty-five, inclusive, 

 and shall issue, or cause to be is.sued, a certificate of such registration. The certificate shall 

 authorize the sale of the brand of feeding stuff for which it is issued, up to and including December 

 thirty-first of the year for which it is issued. All registration fees received under this and the 

 preceding section by the director or his authorized deputy shall be paid to the commonwealth. 

 [Approved May 11, 1922. 



Limitations of Chemical Analyses. 



From time to time criticism is made of the feeding stuff law by certain feed manu- 

 facturers and consumers, principally on account of the fact that the mere guarantee of 

 chemical composition and statement of ingredients required do not give all the infor- 

 mation desired. While it is true that more recent investigations indicate tliat a ration 

 should be compounded with reference not only to its chemical composition but also to 

 its net energ>^ value, its mineral content (particularly calcium and phosphorus), proteins 

 from different sources and essential vitamines, yet the chemical composition, as meas- 

 ured by water, ash, protein, fat, fiber and nitrogen free extract, still remains the basis 

 of all feeding standards. While the newer knowledge may amplify and in some in- 

 stances change old ideas, there is no method of formulating rations based on scientific 

 investigation which does not take into consideration their chemical composition. A 

 guarantee of the percentage of digestible material in a feeding stuff would be more 

 useful, but is impracticable because of the expense of determining the accuracy of such 

 guarantees. The guarantee of protein, fat and fiber, and, in case of compounded feeds, 

 an additional statement of the ingredients used, is a good indication of the quality of 

 the feeding stuff, and is bound to be of value to any intelligent feeder. 



Such a guarantee does not prohibit the sale of some less desirable products, providing 

 they have some food value and are not injurious. The fact that a feeding stuff is re- 

 ported in a bulletin as meeting its guarantee in every particular does not prove it to be 

 a high-grade material, neither does it insure that every shipment sold will comply with 

 its guarantee, it l^eing impossible to examine and sample everj^ sack or lot placed upon 

 the market. 



