The analysis oi all samples collected is reported since in this way the public 

 is informed of all results and not just those that do not make the guarantees. 

 The State collects a registration fee for each brand of feed sold. These funds 

 pay for the inspection service. The manufacturer is assured of an unbiased 

 inspection of his product and the consumer knows that he has recourse under 

 the law if he is not satisfied with results obtained by feeding a particular product 

 in case it is shown that trouble is due to a feed deficiency. The cost of the inspec- 

 tion is very small, a fraction of a cent on a per bag sold basis. 



TERMS USED IN REPORTING ANALYSIS 



The terms, PROTEIN, FAT and CRUDE FIBER appear on the label of 

 a feedingstuff and the percentage shown following each term is the minimum 

 amount of protein and fat and the maximum amount of crude fiber in the 

 feed as guaranteed. These are determined by chemical analysis. In addition it 

 may be desirable to determine the "moisture" and "ash" content of a feed. The 

 sum of these five determinations subtracted from 100 gives a value called the 

 "nitrogen free extract" "NFE." The "NFE" plus the "crude fiber" gives the 

 "carbohydrate" content. 



Brief definitions of these terms follow. 



PROTEIN: A group of complex compounds, all containing nitrogen, carbon 

 and oxygen. In certain cases sulfur, phosphorus or iron are also present. Proteins 

 are essential for life. A variety of protein is insured in a feed when the feed 

 contains both plant and animal products. Extensive research has shown that 

 by a proper combination of ingredients a feed containing the proper proteins 

 for growth and production can be supplied. The usual analysis simply determines 

 the total protein present. To determine the type of protein present or its par- 

 ticular effectiveness involves complex and expensive analytical procedures. 

 Simply stated, the protein content of a feed is found by determining the total 

 nitrogen and multiplying that value by the factor 6.25. 



FAT: Fat is determined by extracting a dried sample of finely ground 

 feed with ether. The extract contains not only the true fat but other ether 

 soluble substances such as carotene and chlorophyll. These other ether soluble 

 materials are present in very small amounts in most cases and so have little 

 effect on the actual fat content as reported. 



CRUDE FIBER: This includes the cellulose and other carbohydrates that 

 are resistant to digestion by the animal. For this reason we are interested in the 

 maximum amount that is in a feed. It has little or no value to the animal eating 

 the material. 



MOISTURE: Moisture is the "water" that is in a feed. It is determined by 

 simply drying a portion of the ground sample in an oven at a constant, con- 

 trolled temperature. 



ASH: Ash is the "mineral matter" present in a feed and is found by burn- 

 ing a portion of the sample at a temperature high enough to burn all the carbon 

 out. For comparable results this must be done under controlled conditions. 



NITROGEN-FREE EXTRACT: This result includes the more soluble 

 carbohydrates such as sugars, and these materials are valuable in animal nu- 

 trition. 



The use of drugs, growth stimulants and other special purpose additives in 



