be summarized as follows. In using the following statement, all results must 

 be expressed in terms of per cent. 



100 minus the sum of "moisture" 4- "ash" + "protein" -f- "fat" + 



"crude fiber" equals the "nitrogen-free extract." Total carbohydrate 



equals "nitrogen-free extract" + "crude fiber." 



The use of medicated feeds for specific purposes continues to increase. 

 In certain cases it is recommended that a medicated feed be fed to poultry 

 on a continuous basis as a means of preventing a chronic disease condition. 

 In certain other cases, a special ration may be designed to control an out- 

 break and is fed only a short time. Feeds containing sulfaquinoxaline and 

 nicarbazin have been analyzed for their drug content in this year's in- 

 spection. The use of drugs or growth stimulants in feeds is carefully con- 

 trolled by the Federal Food and Drug Administration. Each use proposal 

 is completelj'' tested before it is permitted in products for the open market, 

 to insure that there will be no injurious effects from its use. Continued 

 research is making it possible to formulate feeds that will produce maximum 

 results for the time and investment represented in a lot of animals, whether 

 it be poultry, hogs or cattle. 



OTHER COMMENTS 



The use of "bulk delivery" in the handling of feed continues to increase. 

 This method presents special problems in handling to the consumer and the 

 recommendations of the Experiment Station and the manufacturer should 

 be carefully considered. With reasonable care, bulk feed can be handled so 

 that the product, as fed, is as uniform as bagged feed. Samples drawn at 

 various points in the truck and at delivery points indicate that with 

 the observance of proper precautions, a uniform product is supplied the 

 customer. 



It is not within the scope of this bulletin to make recommendations 

 regarding the use of commercial feedingstuffs. The Department of Dairy 

 Husbandry and the Department of Poultry Husbandry are continuously 

 studying feeding problems. The following publications of these departments 

 are free to residents of New Hampshire. Address your request to: Mail 

 Service, University of New Hampshire, Durham, New Hampshire. 



Ext. Bull. 67 Turkey Production in New Hampshire. 

 Feeding Dairy Cattle. 

 Dairy calves. 



Brooding and Rearing Chickens. 

 Feed Standards for N. H. Broilers. 

 Cobalt Deficiency in N. H. Cattle, Sheep and Goats. 

 Effect of Texture on the Nutritive Value of Concen- 

 trates for Dairy Cattle. 

 While the word "feedingstuffs" does not appear in all the above titles, 

 no publication is included which does not discuss some aspect of the use of 

 feedingstuffs. 



Inquiries occasionally are made regarding a method of calculating the 

 protein, fat, or fiber content of a home-mixed feed. There are tables avail- 

 able, such as those in Morrison's book "Feeds and Feeding," which give the 

 average chemical analysis of feed concentrates, roughage and silages. It 



