DAIRY FARMING — DAIRY! N<; — AGROTECH NV. 901 



in Bulletins 148, 161, and 17 1 of the Btation i B. s. R., 13, p. 176; 14, p. 604; L6, 

 p. 298). 



The alfalfa ration consisted of M lbs. alfalfa bay, 35 lbs. corn silage, and -\ 

 lhs. cotton-seed meal. The purchased feed ration consisted of l ( » lbs. corn silage, 

 7 lbs. cornstalks, 11 lbs. wheal bran, C lbs. dried brewers' grains, and 2 lbs. 

 cotton-seed meal. The average daily yield per cow on the alfalfa ration was 



26.3 li»s. of milk, containing l per cenl of fat, and on the f 1 ration 27.3 lbs. of 



milk, containing 4.15 per cenl of fat. With alfalfa baj al $6 per ton (the esti- 

 mated cost of production I the cosl of producing 100 lbs. of milk from this ration 

 was 47.<". cts., while the cost of milk production on the feed ration was 71.8 

 cts. per 100 lbs. of milk. 



The ••i.st of producing 1 lb. of butter on the two rations was respectively 

 10.17 and 14.86 cts. Comparing the results of the present with the earlier 

 experiments it was found that the saving in cost of production by home-grown 

 feeds over purchased feeds was 22.4 per cent for milk and 20.2 per cent for 

 butter, indicating the greal advantage of growing protein feeds. 



Forage and soiling experiments, 1904, G. ( '. Watson and T. I. Maiks 

 (Pennsylvania Sta. Bui. 75, i>i>. 12). — The forage crops grown during the sea- 

 son were as follows: Flat peas, peas and oats, peas and Parley, clover, cowpeas 

 and sorghum, and cowpeas. Notes are given on the culture of each of these 

 crops and the yields are reported in tabular form. 



The crops were U^\ to 5 cows and data are given showing the production by 

 each. Similar tests were made in P. mil' mid 1903 ( E. S. R., 15, p. 998; 17. p. 285). 

 Of the crops grown during the ."'. years, sorghum and cowpeas produced the 

 largest yield of green substance per acre and alfalfa the greatest weighl of 

 air-dry substance. Both crops are considered very satisfactory as green forage. 

 Corn grown as a single crop ranked second in the production of air-dry matter. 

 Field peas and oats are also considered very satisfactory held crops. Flat peas 

 and rape are not recommended. Cowpeas are considered preferable to soy 

 beans. 



Feeding experiments with milch cows, J. Hansen (Landw. Jahrb., 85 

 (1906), No. 1-2, fii). 125-158). — Several feeding stuffs were compared by feeding 

 in successive periods in experiments with ('. cows, lasting in all 142 days. 



The feeding stuffs used were wheat bran, cocoanut cake. " Maizena,'" fat- 

 free palm-nut meal, and palm-nut cake. When fed in quantities having the 

 same amount of digestible nutrients, the different feeding stuffs exerted, accord- 

 ing to the conclusions reached by the author, a very unequal influence upon the 

 yield of milk. Independent of the amount of nutrients contained, the feeding 

 stuffs were considered as having a specific influence on milk production, both 

 as regards the yield of milk and the fat content of the milk. 



As compared with wheat bran " Maizena *' increased yield of milk, but 

 decreased the percentage of fat The cocoanut cake and the residues from the 

 manufacture of palm oil produced practically the same amount of milk as the 

 wheat bran, hut increased to a marked extent the f.-it content of the milk. Com- 

 pared on the hasis of digestible nutrients cocoanut cake produced no better 

 results than the residues from palm oil manufacture. The palm-nut cake 

 obtained by pressure had the same Influence as the palm-nut meal obtained by 

 extraction. 



Experiments on feeding dairy cows, C. P.. Jones (Ab8. in Dairy, / s i 1906), 

 No. 206, />. 39). The feeding experiments Included •_'<• cows and covered in all a 

 period of 48 weeks. Some of the general conclusions reached are in suIkimiic,' 

 as follows : 



A heavy grain ration of iu u>s. or more may cause an increase in the yield of 

 milk hut not always with profit. The limit beyond which it is unprofitable to 

 increase the allowance of concent rated \'iH><\^ was not ascertained, hut it may he 



