976 EXPERIMENT STATION RECOED. 



regards the color of the white and the character of the yolk, bnt all the eggs 

 preserved in liiuewater were usable for cooking purposes. When poached, 

 the nonfertilized eggs did not have any markedly unpleasant odor or taste. 



Little difference was observed between the fertilized and nonfertilized eggs 

 preserved in water glass. In all cases the white was distinctly discolored, be- 

 ing pinkish red and very limpid, while the yolks were thin, discolored, and 

 broken down. The author states that possibly 50 to 70 per cent of the eggs 

 examined miglit have been used for some cooking purposes, while 30 per cent 

 of them were thoroughly bad and totally unfit for human food. The slightly 

 alkaline taste and odor and the " distinctly disagreeable appearance of even 

 the best of these eggs would entirely prevent their use on the table. 



" This has been, of course, a most severe test. Thirteen months at ordinary 

 room temperatures constitute conditions not frequently required to be met, yet 

 the saturated limewater has under them pi'oved itself a very satisfactory pre- 

 servative and more especially so when the eggs are nonfertilized." 



DAIRY FARMING— DAIRYING— AGROTECHNY. 



Feeding' experiments with milch cows, J. Hansen (Arb. Dent. Landw. 

 GeselL, 1907. \o. ISJ/, /j/>. 73). — The first part of this publication is devoted to 

 an account of three series of experiments carried out in 100.5-G and 1906-7, 

 with .51 cows, in 2 dairy establishments, to obtain information regarding the 

 most desirable quantities of total food and of protein for milch cows. It was 

 found that for a satisfactory milk production accompanied by a gain in weight 

 of the cows a total ration with a starch value of 14.4 lbs. per 1,000 lbs. live 

 weight, and supplying 3.1 lbs. of total protein, or 2.5 lbs. of proteid, was neces- 

 sary. This might perhaps be increased to 3.5 lbs. of protein, but in that case 

 increase in weight of the cows rather than in milk production would be the de- 

 sired object. 



The second part of the publication reports an investigation in which ensiled 

 beet leaves and tops, dried beet leaves and tops, and dried sliced potatoes were 

 compared as food for milch cows. On the average the cows produced slightly 

 less milk and fat on the dried beet fodder than on the ensiled fodder, but the 

 difference was equalized by the more favorable influence of the former upon 

 the live weight. Dried potatoes had a very favorable effect on the quantity 

 of milk, but the pei-centage of fat in the milk was smaller than with the beet 

 fodder. There was, however, a larger increase in body weight on the dried 

 potato fodder. 



A method of adjusting crop acreages to the needs of a herd, W. J. Spill- 

 man (Proc. .S'oc. Prom. Agr. ScL, 28 (U)07), pp. 139~l.'/3). — The author states 

 that a single fixed rotation seldom produces feed in needed proportions. " On 

 most farms the size of the herd is usually less than it might be if each of the 

 different kinds of feeds were grown in approximately the proportions needed." 

 Using as factors assumed values for productive capacity of cows, maintenance 

 and productive rations, feeding system, and yields of crops fed, the author has 

 devised a method for computing the acreage to be devoted to each of the crops 

 for a given number of cows with the necessary complement of other stock. 

 The application of the method is described in detail. 



Dairy cow records, J. H. Grisdale {Canada Expt. Farms Rpts. 1906, pp. 

 'i9-66). — Data regarding consumption and production are recorded for 40 cows 

 in 21 months. The returns for 1 year, not including labor, ranged from a profit 

 of $68.79 with 1 cow to a loss of $16.08 with another cow. 



Brief popular statements regarding the breeding and feeding of the dairy 

 calf are given, and feeding experiments with various concentrated feeding 



