DAIRY FARMING DAIRYING AGROTECHNY. 375 



the Hungarian Committee of the International Dairy Convention for the Fourth 

 International Dairy Congress to be held in Budapest in June, 1909. As in the 

 l)revious congress, the tirst section will be devoted to dairy legislation and 

 regulations, the second to dairy hygiene and veterinary science, and the third to 

 dairy industry. 



The National Creamery Buttermakers' Association, 1908 (Nat. Cream. 

 B uttermakers' Assoc. Rpt., 1908, pp. 5-119, fig. 1). — This report includes an ac- 

 count of the proceedings of The National Ci'eamery Buttermakers' Association 

 and a number of addresses on various subjects such as starters and cream ripen- 

 ing, how can the buttermaker hold his patronage against unwholesome competi- 

 tion, how to control uniform overrun and quality in butter, creamery records, 

 creamery emiiloyees, and others, most of the addresses being followed by con- 

 siderable discussion. 



The chemical composition of m.ilk, J. B. Lindsey {Massachusetts Sta. Rpt. 

 1907, pp. 10-'t-108). — ^This cfontains tables showing analyses of milk from the 

 principal dairy breeds, as compiled from various American and European 

 sources. 



The effect of food upon the composition of milk and butter fat, and upon 

 the consistency or body of butter, .J. B. Lindsey {Massachusetts Sta. Rpt. 

 1907, pp. 109-112). — The results of a long series of experiments are summarized 

 as follows : 



"(a) Effect on the milk. — Different amounts of protein in the daily ration de- 

 rived from linseed, cotton-seed, soy-bean, and com-gluten meals do uot seem 

 to have any pronounced effect in chauging the relative proportions of the several 

 milk ingredients. 



"Linseed oil in flaxseed meal, when fed in considerable quantities (1.4 lbs. 

 digestible oil daily), increased the fat percentage from 5 to 5..56 and slightly 

 decreased the nitrogenous matter of the milk. This fat increase was only 

 temporary, the milk gradually returning (in 4 or 5 weeks) to its normal fat 

 content. The nitrogenous matter also gradually returned to normal, but more 

 slowly than did the fat. 



"Three lbs. of cotton-seed meal with minimum oil (8 per cent), when fed 

 daily to each animal, had no noticeable influence on the composition of the milk. 



•' The addition of 0.5 to 0.75 lb. of cotton-seed oil to the cotton-seed meal 

 ration appeared to increase the fat percentage of the milk about 0.4 per cent 

 (5 to 5.4), and this increase was maintained during the 6 weeks of the feeding 

 period. 



"The substitution of linseed meal with a minimum percentage of oil (3 per 

 cent) in place of the cotton-seed meal and cotton-seed oil resulted in a decline 

 of the fat in the milk to its normal percentage. This change probably was due 

 to the removal of the cotton-seed oil from the ration, and not to the influence of 

 the linseed meal. 



" The addition of 0.6 lb. of corn oil to a ration made up of a mixture of grains 

 low in fat increased the fat percentage of the milk 0.23 per cent (5.17 to 5.40). 

 At the end of 2 weeks the effect of the corn oil had disappeared and the milk 

 had returnetl to its normal fat content. 



" The sudden removal of the corn oil from the daily ration caused a drop of 

 0..54 per cent in the fat (4.97 to 4.43), but after the first week the normal fat 

 percentage was again present. 



" Corn oil appeared to have depressed the nitrogen percentage of the milk by 

 0.034 per cent (O.GIO to 0.576). The nitrogen gradually returned to its normal 

 percentage after the feeding of the corn oil had ceased. 



"Corn meal (a carbohydrate feed) was without effect on the composition of 

 the milk. 



