6 BULLETIN 929, U. S. DEPARTMENT OP AGRICULTURE. 



The mare Pet died on September 8 after a sudden attack of colic. 

 After her death and one serious case of colic (Nell, referred to 

 later), the feeding of cottonseed meal to all animals was discon- 

 tinued for 30 days. During that period there was no noticeable 

 change in the condition of the horses, nor were there any great 

 changes in their weights. 



The mare Nell was getting 1| pounds of cottonseed meal up to 

 August 28, on which date she gave birth to a foal. The feeding of 

 cottonseed meal to this mare - was discontinued at this time and was 

 not resumed. This mare died September 25 from an attack of colic, 

 and her death was not attributed to the cottonseed meal. 



On October 6 the feeding of cottonseed meal was resumed, the 

 amount of meal fed being 1 pound a day to each horse. It was 

 thought that as the horses had eaten a much heavier ration of meal 

 than that, 1 pound a day would have no harmful effects. On the 

 second night after the horses were put back on the meal the mare 

 Maude became very sick with a case of colic. As she had been quite 

 healthy previous to that time, it was assumed that the cottonseed 

 meal had caused the attack, so the meal was discontinued. She has 

 shown no symptoms of sickness since. 



On the sixth night after the renewal of the cottonseed-meal ration, 

 the mare Stanley became quite sick with colic. The conditions in 

 this case were very similar to those of the mare Maude. After having 

 these two serious cases of colic, apparently caused from feeding the 

 cottonseed meal, the feeding of this concentrate was discontinued, 

 and the test ended October 13. 



INDIVIDUAL CASES. 

 PET. 



The young mare Pet was doing well on cottonseed meal and with 

 Castanette was placed on a heavy cottonseed-meal ration. Pet re- 

 ceived 3 pounds of cottonseed meal daily for 46 days. On Septem- 

 ber 7, 1918, she was taken with a severe case of colic and died the 

 following morning. Before the attack she had been healthy and had 

 shown no symptoms of colic. Post-mortem examination showed the 

 stomach and intestines to be very much inflamed. There was a con- 

 siderable quantity of cottonseed meal in the stomach and intestines. 

 In this case indications were that death was due to the effects of 

 cottonseed meal on the system. The harmful effects were not notice- 

 able, however, until too late to prevent the loss of the mare. 



NELL. 



On September 25, 1918, the mare Nell had a severe case of colic 

 from which she died the following day. This was one of many 



