FOODS ANIMAL PRODUCTION. 



659 



daily yields of milk for each lot during the diftercut x)eiiods were as 

 shown below: 



Avcrof/e daily ijield of milk per cow. 



The results iudicate a similar uutritive effect in the feeds compared 

 with a slight increase in favor of the wheat-bran feeding. The differ- 

 ences found, however, are not on the average greater than what might 

 have been found in feeding a similar nnmber of cows the same feeding 

 stuffs for several months. 



The average live weights of the cows increased during the experi- 

 ment; the increase was greater for lot B than for lot A, and greater 

 for lot C than for lot B. The cows in lot B and ate somewhat more 

 straw than those in lot A, the difference beiug about 0.4 lb. per head 

 daily. 



^Yheat shorts vs. wheat bran. — The exi)eriments with these foods were 

 conducted with -40 cows, trials being made in all on 3 different 

 estates each year. No appreciable difference was apparent in the 

 effect of the foods either on the quality or the quantity of milk pro- 

 duced, or in change of live weight of the cows during the experiment. 

 A small difference in favor of shorts as regards the yield of milk was 

 found in 3 trials. — F. w. woll. 



Record of a herd of cows at Weende, Bagkhaus {Jour. Landw. 

 42, JSFo. 3, pp. 243-281). — This is the individual record for one year of a 

 herd of 59 cows. Trial milkings were made weekly, and composite 

 samples were taken for testing. 



Of the 20 cows which gave over 4,000 kg. of milk during the 

 year, 14 had a relatively short lactation period, calving during the 

 year, Avhile only G gave milk throughout the year. The results indicate 

 that as far as the milk yield is concerned it is most advantageous to 

 have the cows calve as often as j)ossible. In the majority of cases the 

 milk yield and the fat content were in inverse proportion. Usually the 

 fat content increased as the milk yield decreased with advancing lacta- 

 tion ; and out of the 20 cows giving over 4,000 kg. of milk only gave 

 milk with the average fat content for the herd — 3.2GG per cent. The 

 percentage of solids not fat was nsually much more uniform than that 

 of fat. In the case of 3 cows which did not get with calf, there was 

 no increase in the percentage of fat and solids-not fat as they shrunk 

 in milk, and 3 other cows tested for a short time and then sold because 

 they did not get with calf showed a similar tendency. This suggests 

 13788— No. 7 6 



