Economic Considerations in Use of Urea for Feeding Beef and Dairy Cattle
Economic Considerations in Use of Urea for Feeding Beef and Dairy Cattle

Author: Ralph Dickieson Jennings

Publisher: Forgotten Books

Published: 2018-09-08

Total Pages: 22

ISBN-13: 9781390515923

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Excerpt from Economic Considerations in Use of Urea for Feeding Beef and Dairy Cattle: September 1952 Judging from these few experiments, it would seem that urea can replace enough oil meal in fattening cattle\in the Corn Belt to be prof itable under almost any foreseeable relative prices of oil meal and corn. This assumes that the urea can be mixed uniformly into the ration with out any substantial increase in cost, so that there is no danger that an animal will obtain enough of the urea at one time to be toxic. This would involve some additional cost when a ration containing shelled corn, oil meal, and hay is fed. Probably a part of the corn would have to be ground and mixed with the urea to insure a safe mixture. If the farm had feed-mixing facilities or if custom-mixing facilities were used, the additional cost would probably be small, Considerable initial cost might be involved if mixing facilities were not already used. In no case should urea be used unless it is thoroughly mixed with at least a part of the daily feed. Probably a mixture of 1 pound of urea to 9 pounds of grain would be sufficient dilution. Then, if one wished to feed one fifth of a pound of urea a day, 1 pound of the mixture could be fed twice a day along with the shelled corn or other feed. Urea can also be mixed with molasses and the mixture poured on the other feeds after the grain or other feed is put in the feed bunks. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Evaluation of the Addition of Urea to Finishing Diets Containing Distillers Grains and Yeast Extracted Condensed Distillers Solubles on Finishing Performance of Beef Cattle
Evaluation of the Addition of Urea to Finishing Diets Containing Distillers Grains and Yeast Extracted Condensed Distillers Solubles on Finishing Performance of Beef Cattle

Author: Bradley M. Boyd

Publisher:

Published: 2019

Total Pages: 0

ISBN-13: 9781392509944

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Three feedlot experiments evaluated the effects of added urea to finishing diets containing less than 20% WDGS. In Exp.1, a significant interaction was observed for G:F between urea concentration and distillers concentration in the diet. Feeding urea in diets with 10% WDGS had no significant impact on animal G:F. Urea included in diets with 15% WDGS had a quadratic impact on G:F with urea included at 0.5% of diet DM having the greatest performance. When adding urea to diets containing 20% WDGS, a quadratic impact on G:F was observed where urea included at 0.5% of diet DM reduced G:F. In Exp. 2 there were no interactions between urea concentration and WDGS concentration. Increasing concentration of WDGS in the diet improved G:F by 4.7%. The addition of urea to the diet had minimal impact on performance although cubic effects of urea inclusion were observed suggesting variation in the data. For Exp. 3 no difference was observed, for either urea concentration or WDGS concentration in the diet, however, DMI was reduced when urea was included in the diet at 1.2%.Two experiments evaluated the effects of the addition of yeast extracted solubes (EXP) and yeast to finishing diets on performance, carcass characteristics, and nutrient metabolism. In Exp. 1, feeding increased EXP in the diet resulted in quadratic effects on performance with what appears as a linear decrease up to 15% EXP is included followed by a dramatic increase at 20% inclusion. Feeding similar concentrations of EXP when compared to conventional condensed distillers solubles (CONV) reduced animal performance. However, when yeast (YST) was added back to the EXP, performance is similar to CONV. Adding YST alone does not improve performance over the corn control. All concentrations of EXP and CONV performed worse than the corn control. In Exp. 2 no effects on measured nutrient digestibility were observed. However, DM intake and excretion were affected with tendencies for OM, NDF, ADF, and starch intakes to be affected. Digestible energy intake in Mcal/kg and TDN were affected by diet and appeared to follow similar patterns as the performance trial perhaps explaining the observed performance response.

Beef Cattle Feeding and Nutrition
Beef Cattle Feeding and Nutrition

Author: Tilden Perry

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 400

ISBN-13: 0323152147

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Beef Cattle Feeding and Nutrition is the third in a series of books on animal feeding and nutrition. These books are designed to keep readers abreast of the rapid developments in feeding and nutrition. These developments have resulted in changes in diets, the use of new feed processing methods, improved use of by-product feeds, and more supplementation with minerals, vitamins, amino acids, and nonprotein nitrogen compounds. The book is organized into four parts. Part I focuses on the nutrient requirements of beef cattle. Beginning with a review of rumen physiology and energy requirements, the remaining chapters discuss the vitamin, mineral, and protein, requirements of beef cattle. Part II on feedingstuffs includes studies on pasture and other forages; hay and haylage making; silage and crops for silage; and concentrates for beef cattle. Part III includes studies on breeding herd nutrition and management; and milk production and calf performance. Part IV on cattle finishing covers cattle finishing systems; feedlot disease; and economics of cattle feeding.