. Feeds and feeding abridged : the essentials of the feeding, care, and management of farm animals, including poultry : adapted and condensed from Feeds and feeding (16th ed.). Feeds; Animal nutrition. MEASURING THE USEFULNESS OF FEEDS 39 The respiration apparatus.—This is an air-tight chamber, ar- ranged with such devices that all that enters and comes from the body of the animal placed within it can be accurately measured and studied. In some cases mechanical work is performed, while in others the animal is at rest. Everything which passes into the animal—air, food, and water—is carefully me
. Feeds and feeding abridged : the essentials of the feeding, care, and management of farm animals, including poultry : adapted and condensed from Feeds and feeding (16th ed.). Feeds; Animal nutrition. MEASURING THE USEFULNESS OF FEEDS 39 The respiration apparatus.—This is an air-tight chamber, ar- ranged with such devices that all that enters and comes from the body of the animal placed within it can be accurately measured and studied. In some cases mechanical work is performed, while in others the animal is at rest. Everything which passes into the animal—air, food, and water—is carefully measured and analyzed so that the exact in- take of the body is known. The air is in turn drawn from the cham-. Fig. —The Eespiration Calorimeter at the Pennsylvania Station Calorimeter chamber jn the corner of the room at the left. Thru the use of this apparatus much light has been thrown on the value of different classes of feeds for farm animals. (From Armsby, Pennsylvania Station.) ber and analyzed, and the feces and urine passed by the animal are likewise weighed and analyzed. If the intake is larger than the outgo, the animal has increased in body substance; if less, it has lost. For example, if the feed given a steer during 24 hours contains lb. of nitrogen and the feces and urine voided during the same day contain lb., the steer has stored lb. of nitrogen in its body during the day in the form of protein tissue. Similarly, if the feed contains. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Henry, W. A. (William Arnon), 1850-1932; Morrison, F. B. (Frank Barron), 1887-1958. Madison, Wis. , The Henry-Morrison company
Size: 1749px × 1428px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfeeds, bookyear1917
