Summary 



A digestion and utilization experiment was carried out with dairy heifers 

 to determine the nutritive vakie of citrus pulp fed along with hay and as a 

 50 percent replacement for grain. It was found that a concentrate mixture 

 containing 50 percent dried citrus pulp and 50 percent of a 20 percent 

 protein concentrate mixture was equal to a 14 percent protein concentrate 

 mixture as a source of energy. It was found that citrus pulp was not nearly 

 as valuable as a 14 percent protein grain mixture when fed as the sole 

 concentrate. These results suggest a very important supplementing effect 

 between citrus pulp and grain from the energy standpoint, but not with 

 respect to protein. 



A feeding experiment also was carried out with cows to determine the 

 effects of replacing one feed of concentrate daily with dried citrus pulp. 

 It was found that when two groups of animals were reversed at 30-day 

 intervals from two feeds of grain to one feed of grain and one of dried 

 citrus pulp, there was no difference in milk production. Animals given 

 one feed of dried citrus pulp and one of grain daily for a period of one 

 year conceived just as readily and maintained body condition just as well 

 as comparable animals fed no citrus pulp. Citrus pulp was well accepted 

 up to 6 to 8 lb. per day with the exception of one cow. 



The results of these two experiments indicate that dried citrus pulp is 

 a valuable energy feed for dairy cattle, particularly when fed along with 

 grain. The digestion study suggests that better results might have been 

 obtained on the feeding experiment if the citrus pulp had been fed with 

 grain at each feeding instead of at separate feedings. These studies indicate 

 that dried citrus pulp may be used to make up an appreciable portion of 

 the dairy concentrate mixture when the price situation is favorable. Care 

 should be taken, however, to balance the low protein content of this pro- 

 duct. 



10 



