Vitamins

Cover title

Vitamins for livestock

Cover title.Includes bibliographical references

Retarded growth and mature size of beef steers

Publication authorized July 1, 1929.Includes bibliographical references (page 24)

The Relation of feed consumed to protein and energy retention

Publication authorized November 13, 1924.Digitized 2007 AES.Includes bibliographical references (page 34)

How to choose commercial feeds

Caption title.Digitized 2006 AES MoU."December, 1942.""In the feeding of livestock there are certain fundamentals that must form the basis of the feeder's choice of commercial products to supplement the feeds produced on the farm. It is to emphasize these fundamentals, rather than to discuss the many special cases and exceptions encountered in livestock feeding, that this circular is published."--Page 1."Second Printing, February, 1948.

Rearing orphan pigs

Caption title.Digitized 2006 AES MoU

Feeding livestock

Cover title."A revision of Station Bulletin 330"--P. [2]

Vitamin deficiencies in rations of natural feedstuffs

"February, 1949.""Publication authorized February 15, 1949."A swine ration consisting of yellow corn, tankage, casein, linseed oil meal, alfalfa meal, vitamin A and D concentrate and mineral supplements, has been fed to rats from the time of weaning through maturity, including reproduction and lactation. Results indicate that for growth of weanling rats the ration under consideration is deficient in some combination of thiamine, riboflavin, pyridoxine and pantothenic acid. Using paired feeding trials it was shown that no one of these four vitamins is effective alone. Whether or not a simpler combination is effective is undetermined. After studying reproduction records it was apparent that the ration supported normal reproduction through parturition. However, at 28 days of age, only 16.5 to 63.0 per cent of the young were weaned, and average weaning weights were subnormal. Addition of choline to the basal increased the weaning percentage somewhat, but some unrecognized factor, present in liver, soluble in water and alcohol, and adsorbed on fuller's earth at pH 1, was effective in increasing the weaning percentage to normal. A crude concentrate of folic acid was also effective. Apparently the ration under consideration is not only deficient in these known growth factors, but also in an unrecognized factor (or factors) similar to, if not identical with, folic acid, and which is of special importance in suckling young. Apparently the deficiency is one affecting milk quality rather than quantity

The calcium requirement of brood sows

Publication authorized February 8, 1932.Digitized 2007 AES.Includes bibliographical references (page 18)

Nutrition for breeding herds and flocks

"August, 1947."First edition, March, 1943.""Good pasture is the natural feed for livestock. When good both as to quality and quantity it makes a most acceptable ration for breeding animals. Under ordinary circumstances, its cost is relatively low; its supply of food elements is complete and its general effect upon the digestive apparatus of the animal is highly beneficial. The farm equipped with good pastures is in a highly advantageous position so far as caring for a breeding herd or flock is concerned."--Page 1-28 pages : illustration