Southern Wisconsin Cheesemakers' and Dairymen's Association / Proceedings of the ninth annual meeting of the Southern Wisconsin Cheesemakers' and Dairymen's Association held at Monroe, Wisconsin, Thursday and Friday, March 11 and 12, 1909
Ottis, D. A.
Important factors in the selection of our feeding stuffs, pp. 37-44 PDF (1.4 MB)
3* NINTH ANNUTAL CONVENTION. F). It will be noticed froti this table that clover hay contains more calories per 100 pounds than does corn meal but it will also be noticed that the losses in the case of clover hay are much greater than in the case of corn meal and that the remainder of the energy available for the use of the animal in its digestive and assimilative processes is much greater in corn meal. The digestibility of a feed is a vital point in measuring its value as it is the only part of the feed that can be used in the nourishment of animals. An animal hard at work needs to be fed plenty of grain in order to furnish the mlxii:nim pounds of nutrients it is able to handle. Facility of Digestion. Many authorities measure the value of feed by its total digestible nutrients. This has been proved not to be entirely correct f )r alth)ug'i a feed is digestible, it may contain more bulk, require a large amount of energy in chewing, in secreting digestive juices, and in warming up extra water for a suitable solvent. This is called by some, 'the facility of digestion". At the Connecticut Experiment Station (Storrs) a n exp riment was carried on witlI two 1,000 pound cows fed on a maintenance ration of 64 pounds of corn meal containing 41 pounds of digestible nutrients. The same cows required for maintenance 13i pounds of mixed hav containing 7.1 pounds of digestible nutrients. In this instance I pound of digestible nutrients in corn was equal to 1.57 pounds in mixed hay. Another experiment with pigs resulted in 239 pounds of digestible nutrients in skim milk to produce 100 pounds of gain. With skim milk and shorts there were required 258 pounds of digestible nutrients and with shorts 2114 pounds. All things considered, milk would rank first in facility of digestion, by concentrates, second and roughage, third. With roughage the f icility of digestion is greater with early cut than late cut hay, is greater with silage than corn stover. An experiment with horse, by Zuntz and Hagerman of
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