872 EXPERIMENT STATION RECORD. I Vol. 35 



" Results indicate that the feeding of 5 lbs. of cotton-seed meal for any length 



of time is injurious to the dairy cow, causing inflammation of tlie udder, difficult 

 breeding, and probably having a tendency to cause retention of afterbirth. Feed- 

 ing cotton-seed hulls in the quantities given appears to cause difficult breeding, 

 though not to the same extent as the feeding of cotton-seed meal. In the above 

 test it has been clearly shown that bad effects may follow the use of cotton-seed 

 meal in too large amounts." 



Cotton-seed meal versus cold pressed cotton-seed cake for dairy cows, J. S. 

 Moore {Mississippi Sta. Bui. 174 (1914), PP- 11-13). — In this experiment, which 

 lasted 16 weeks, there were three lots of 7 cows each. During the preliminary 

 period of three weeks all the cows were fed an average ration of 4 lbs. of cotton- 

 seed meal, 7 lbs. of Johnson grass hay, and 42 lbs. of corn silage per head daily. 

 During the next nine weeks each cow received Johnson grass hay and 3 lbs. of 

 wheat bran daily, and in addition lot 1 received 5 lbs. of cotton-seed meal and 

 2.5 lbs. of cotton-seed hulls, lot 2, 7.5 lbs. of cold pressed cotton-seed cake, and 

 lot 3, 5 lbs. of cotton-seed meal per head daily. During the final four weeks 

 all the cows were fed 4 lbs. of cold pressed cotton-seed cake per head daily on 

 good pasture. The average weekly milk production per cow was as follows : 

 First period, lot 1, 163 lbs., lot 2, 165 lbs., and lot 3, 160 lbs. ; second period, 

 lot 1, 144 lbs., lot 2, 151 lb.s., and lot 3, 144 lbs. ; and third period, lot 1, 1.55 

 lbs., lot 2, 158 lbs., and lot 3, 157 lbs. 



The cows in lot 1 made an average gain in weight during the 16 weeks of 12 

 lbs. per head, those in lot 2, 10 lbs. per head, while those in lot 3 lost 4 lbs. each. 



The relative value of grain feeds as indicated by former tests at the station 

 is given. 



Feeding value of purchased feeds versus pasture versus soiling crops, 

 J. S. MooEE (Mississippi Sta. Bui. 174 {J914), pp. 14-I6). — This experiment 

 involved three lots of 5 cows each and lasted three periods of six weeks each. 

 During the first period lot 1 received purchased feeds consisting of cotton-seed 

 meal, wheat bran, alfalfa hay, and cotton-seed hulls ; the cows in lot 2 were on 

 good pasture of oats and hairy vetch ; and the cows in lot 3 were fed alfalfa as a 

 soiling crop. During the second period lot 1 received cotton-seed meal, wheat 

 bran, and alfalfa hay ; lot 2 were put on pasture of Bermuda, white clover, 

 smooth vetch, and mixed grasses ; and lot 3 were fed alfalfa and Johnson grass 

 as soiling crops. During the third period lot 1 were fed on alfalfa and Johnson 

 grass as soiling crops ; lot 2 remained on pastvire as in the second period ; and 

 lot 3 received purchased feeds. In addition, the cows on pasture and those get- 

 ting soiling crops received about a half ration of cotton-seed meal, wheat bran, 

 and cotton-seed hulls. All the cows were fed so that each lot would procure 

 about the same amount of milk. 



Lot 1, on purchased feeds, gave 10,676 lbs. of milk, the feed cost being $124.08 

 and the profit, over cost of feed, $124.12. The corresponding figures for lot 2, 

 the cows on pasture, were 11,048 lbs., $50.41, and $206.39, and for lot 3, those on 

 soiling crops, 10,912 lbs., $56.79, and $196.81. In figuring these feed costs and 

 profits cotton-seed meal and wheat bran were valued at $2S per ton, green alfalfa 

 and green Johnson grass at $1.50 per ton, Johnson grass hay at $12 per ton, 

 alfalfa hay at $15 per ton, cotton-seed hulls at $8 per ton, and pasture per cow 

 per month 75 cts. Milk was valued at 20 cts. a gallon, 



[Dairy husbandry], J. M. Scott {Florida Sta. Rpt. 1915, pp. X7Z-XX/),— 

 Individual records of the cows of the station herd show that the feed cost of 

 milk per gallon varied from 7.4 cts. to 20.2 cts. for different cows, the average 

 for the entire herd of 24 cows being 13.6 cts. With milk at 32 cts. per gallon 

 and butter at 40 cts. per pound a much larger profit was obtained from selling 

 milk than from converting it into butter. 



