469 



The licaltli of the milch cows was not affected, apparently, by feeding (1 pounds of 

 cotton-seed meal daily per animal, the weij^ht of the animals aveia',Miijr abont 900 

 pounds per head. * * * 



The yield of milk was increased about one fifth when cows were fed uotton-seed 

 meal instead of bran, the cotton-seed meal oonstitiitin-j about three fifths of the grain 

 ration and about one fourth of the total food eaten. The per cent of fat in the milk 

 was not materially changed. The quantity of butter fat produced was therefore 

 appreciably increased l»y feeding cotton-seed meal in place of bran. » * * 



The cows which were fed cotton-seed meal did not reciuire (juite so much food to 

 produce a pound of milk as did those fed bran during the same time, but when they 

 were both fed alike those which had been previously fed cotton-seed meal required 

 considerable more food than those fed bran. 



During the first two periods butter was made from the milk of each 

 lot and samples sent to commission merchants in J^ew York for grading. 

 Five churniugs were made from the milk of each lot by means of the 

 "extractor separator, a machine which makes butter directly from the 

 milk," the milk from each churning being collected during 2 or 3 days. 

 The butter obtained by this means contained from 73.79 to 82.18 i)er 

 cent of the fat, averaging about 76.85 per cent. The average percentage 

 of fat recovered in the butter was in the case of lot 1 (bran) 85.3, and 

 in the ^case of lot 2 (cotton seed meal) 86.5 per cent. " Practically, 

 however, there was no difference in the completeness with which the 

 butter was recovered when the extractor separator was used." 



On 6 consecutive days the mixed milk of each lot was set in a Cooley 

 creamer at about 45° F. for 24 hours, and the cream obtained from each 

 lot was churned in two separate portions. The amount of butter obtained 

 is not given, but the losses of butter fat in the skim milk and buttermilk 

 were slightly larger in the case of lot 1 (bran). Thus, while the skim 

 milk from lot 1 averaged 0,32 and tli^e buttermilk 0.25 per cent fat, that 

 from lot 2 averaged 0.17 and 0.1 per cent fat, respectively. 



The judges to whom the butter was sent all rated the butter from the 

 lot receiving cotton-seed meal considerably lower than that from the 

 lot receiving bran. 



Determinations of the melting point were made in eight samples of 

 butter from each lot. This ranged in the butter from lot 1 (bran) from 

 91° to 97°, and averaged 93° F. ; and in the butter from lot 2 (cotton- 

 seed meal) from 96° to 102°, and averaged 99° F. 



To recapitulate briefly, the yield of milk was increased about one 

 fifth when cotton seed was fed in place of bran ; the losses of fat in 

 butter making were practically the same for both lots where the 

 extractor separator was used, but were slightly larger with the bran-fed 

 lot where the cream was raised by the Cooley system and then churned; 

 the butter produced on cotton-seed meal was rated lower by the judges 

 than that produced by the bran-fed lot; and finally, the cotton-seed- 

 meal butter had a higher melting point (about 6° F.) than the bran butter. 



Three young calves were fed daily 1 pound of cotton-seed meal mixed 

 with hot water, in addition to skim milk. Two died, but the third 

 " has made a fair gain." 



