428 



Scientific Proceedings (124). 



After 10 days, a decrease in the stiffness and in the skin troubles 

 was noted in pig 107, and rapid growth was resumed. At the 

 end of 5 weeks the stiffness had disappeared and the skin was 

 nearly normal. During the last three weeks the pig gained over 

 2 lbs. a day, compared to 1 lb. at the close of the 90-day period. 

 Pig 122 showed the first definite evidence of recovery after 3 

 weeks, when it was able to stand momentarily if placed on its 

 feet. It could get up by itself and take several steps at 4 weeks. 

 At 7 weeks, lost weight had been recovered, the skin was nearly 

 normal, the pain appeared to be entirely gone, and the animal 

 was able to get around rather freely, though stiffness was still 

 present. 



210 (1957) 



The pathological tissue changes resulting from feeding cotton- 

 seed meal. 



By S. A. GOLDBERG and L. A. MAYNARD. 



[From the Department of Comparative Pathology and the Depart- 

 ment of Animal Husbandry, Cornell University, Ithaca, N. Y.] 



Twelve pigs were fed a ration of cornmeal 60 per cent., wheat 

 middlings 10 per cent., molasses 5 per cent, and cottonseed meal 

 10 per cent, which was gradually increased to 25 per cent. They 

 also received a mineral mixture of salt and lime. Six of these 

 died from 8 to 13 weeks after the experiment was begun, the rest 

 were at that time changed to a ration free from cottonseed meal 

 and are still alive. 



The most constant tissue changes were ascites, hydrothorax, 

 hydropericardium, a distension of the sheath, anasarca, oedema 

 of the perirenal fat and congestion of the thyroid glands with a 

 marked diminution of colloid material. In those that died first, 

 there were marked subpleural and interlobular pulmonary cedema. 

 The cedematous liquid was slightly reddened and gelatinized on 

 standing. 



A Holstein cow has been fed cottonseed meal for 10 weeks 

 beginning with 6 quarts and gradually increased to 10 quarts 

 daily comprising the entire grain ration, with hay for roughage. 



