668 EXPEEIMENT STATION RECORD. 



reduced. The iii(\m1 should lie mixed with the other feed and all soured top>the!V 

 As iinich j^reen feed as possible should also he fed and a close watch kept and the 

 cotton-seed meal taken away from any animals not eating or not gaining well. 



If cotton-seed meal and corn chops are mixed before the water is added the 

 tendency for the meal to form into balls is obviated. In sunnner the mixture 

 will sour readily in 24 hours. In cold weather 48 hours or longer will be 

 required to produce the characteristic sharp odor. Souring will lie hastened 

 by adding to each lot of feed a quart of the sour material. 



"Feeders who have had experience with the meal will probably lie able to 

 exceed these recommendations, which, however, allow the use of enough meal to 

 greatly improve a corn diet. One lb. of cotton-seed meal to 5 of corn furnishes 

 the nutrients in the most desirable proportions for fattening, while 1 to 2 

 of corn are more nearly correct for young growing stock. Of course other feeds 

 are desirable for their influences not attributalde to their con)position, hut it is 

 not often that the ado])ted standards can be ignored in feeding any animals for 

 profit." 



Egg fanning — infertile eggs, M. Fern (Queensland Ayr. Jour., 17 {1006), 

 \(>. J, /*/'. .229, 230). — The superiority of infertile eggs is insisted upon, and a test 

 is briefly reported in which a large proportion of such eggs, stored at ordinary 

 temperatures, kept fresh for more than 2 months. " 



Ostrich farming as carried on at the present day, A. W. Douglass (Tran.'^- 

 raal A (jr. Jour., 5 (IHOU). X(j. 17, pii. !i2-'.l.j). — The present systems of ostrich 

 farming in the Transvaal are pasturing on alfalfa or feeding alfalfa hay and 

 ranching the ostrich or running the birds in camps on the natural veld. Some 

 advantages of each of the two systems are briefl.v described and data given 

 regarding ostrich enemies and parasites. 



" The two great scoui'ges to the ostrifh farmer are that the birds in their 

 younger stages are invariably infested with tapeworm, and still worse with 

 Douglassi or wireworm. These are overcome to a great extent by dosing the 

 young birds with turpentine and other mixtures, and the older the bird 

 becomes, the freer it becomes of these parasites ; the reason why is as yet 

 luflvnown." 



The turtle trade of the West Indies, W. G. Fitz Gerald (S!ei. Anirr.. .0.) 

 (1906), A'o. 20, pp. 365, 366, fi(/s. 4)- — Turtle Ashing, feeding, marketing, the 

 manufacture of canned and bottled tui'tle products, and other features of the 

 West Indian turtle trade, which centers at Kingston. Jamaica, are discussed. 



DAIRY FARMING— DAIRYING^AGROTECHNY. 



Experiments for the determination of the protein minimum in rations 

 for dairy cows (Ber. K. Vet. oy Luudbohojskoles Lab. L(indoLo)tuni. Forsijij 

 [Copenhagen] . 60 (1906), pp. 1-147+1-1.58).— The investigation reported in 

 this publication was conducted for the purpose of determining the quantities 

 of nitrogenous substances required by milch cows, especiall.v minimum protein 

 requirements. 



Nine fresh cows were placed on the experiments planned for the stnd.v of this 

 question, and were fed rations containing varying [)roportions of ha.v, straw, 

 mangels, and cotton-seed meal. The nitrogen balance was determined through- 

 out the experiments by collecting the solid and li(iuid excreta, which were 

 weighed and analyzed as in the case of the feeding stuffs used on the experi- 

 ments. 



The following table gives a sunnnary of the average results obtained. These 

 .'ire iiublished, however, as only approximate figures, since the minimum nuist 



