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Intensity Of Grazing Effect On Livestock And Forage Production, J. K. Lewis, G. M. Van Dyne, L. R. Albee, F. W. Whetzal
Intensity Of Grazing Effect On Livestock And Forage Production, J. K. Lewis, G. M. Van Dyne, L. R. Albee, F. W. Whetzal
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
An intensity of grazing experiment was initiated in 1942 at the Cottonwood Range Field Station to study the effects of heavy, moderate, and light grazing on the vegetation and on cow and calf production. Results of the first 9 years of this study were reported in South Dakota Agricultural Experiment Station Bulletin 412 in 1951. These studies have been continued and intensified. The present publication is a progress report on the effects of the intensity of grazing on cow and calf production since 1953 and on the cumulative effects of different grazing intensities on the native vegetation.
Pelleted Feeds With And Without Antibiotics For Fattening Lambs, L. F. Bush, R. M. Jordan
Pelleted Feeds With And Without Antibiotics For Fattening Lambs, L. F. Bush, R. M. Jordan
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
Two lamb feeding trials were conducted to determine if it paid to pellet rations and to study the value of antibiotics in fattening rations.
Lambs fed pelleted rations gained slightly faster and more efficiently than those not fed pellets. However, grinding, mixing, and pelleting costs more than offset this advantage.
Carcass yields were slightly higher for lambs fed pelleted rations (average of both trials). The carcass grade was about one-third of a standard grade lower.
Results from adding 10 milligrams of aureomycin per pound of feed were not consistent for both trials. Aureomycin stimulated growth and increased feed efficiency in …
Feeding Value Of Early, Medium And Late Cut Prairie Hay, L. B. Embry, G. F. Sastler, O. E. Olson
Feeding Value Of Early, Medium And Late Cut Prairie Hay, L. B. Embry, G. F. Sastler, O. E. Olson
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
Prairie hay makes up a major part of the harvested feeds that are fed to cattle and sheep in many areas of South Dakota. A large number of animals are also grazed most of the winter on the matured and standing grass in the range area of the state.
Chemical analysis of samples cut from various areas of the state, reflecting the extremes in harvesting dates (June to October), show this hay varies from more than 10 to less than 4 percent protein. Stage of maturity when harvested was found to have a big effect on the protein and phosphorus …
Preventing Selenium Poisoning In Growing And Fattening Pigs, R. C. Wahlstrom, L. D. Kamstra, O. E. Olson
Preventing Selenium Poisoning In Growing And Fattening Pigs, R. C. Wahlstrom, L. D. Kamstra, O. E. Olson
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
The condition commonly referred to as alkali disease has been known for a number of years to be the result of chronic poisoning by selenium. South Dakota Agricultural Experiment Station bulletin 311, published in 1937, explained the cause for this disease and thoroughly described the symptoms exhibited by various farm animals. The work reported here was started in 1953. At that time effective and practical control measures had not been found.
Date And Rate Of Corn Planting, A. N. Hume, V. A. Dirks, D. B. Shank
Date And Rate Of Corn Planting, A. N. Hume, V. A. Dirks, D. B. Shank
Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011)
Corn is South Dakota’s most important grain crop. It is grown on 4 million acres annually. South Dakota ranks ninth among the states as a corn producer, having one-twentieth of the national acreage and one-thirtieth of the production.
The state may be divided into three areas on the basis of the place of corn on the farm: the eastern area, where corn is complementary to wheat and grazing; and the western area, where corn is supplementary grazing.