Nitrate Poisoning

This bulletin presents a brief survey of the problem of nitrate poisoning, incorporating some of the experimental evidence secured at this laboratory and borrowing liberally of the data obtained by other investigators, so as to make possible a more complete report. It is by no means a comprehensive review of the field, but it is thought that the literature cited (and the references therein) provides an adequate cross-reference on the subject. The pharmacologic aspects of nitrate and nitrite, for example-studies on many of the nitro esters, have been intentionally omitted from this discussion

Cows, Calves and Grass: Effects of Grazing Intensities on Beef Cow and Calf Production and on Mixed Prairie Vegetation on Western South Dakota Ranges

This bulletin reports the results of a 9-year summer grazing experiment on native ranges in western South Dakota. The experiment was designed to determine the effects of climate and different intensities of grazing on (1) beef production, (2) maintenance of range condition, and (3) foliage yields. Hereford cows and calves were used in the experiment. The work was conducted at the Cottonwood Range Field Station which is located slightly south of the center of western South Dakota and midway between the Missouri River and the Black Hills. It is in the upper watershed of the Bad River

Protein Feeds for the War Period

The shortage of high-protein feeds and protein supplements for livestock is becoming more acute every day. Supplies of animal protein are not large enough to meet present needs mainly because of the increased demand for them due to (1) greater use of protein feeds by livestock producers in order to provide more milk, meat, and eggs, and (2) the need for larger amounts of casein and other animal proteins, as well as certain vegetable proteins, in war industries. It has been estimated that the shortage of protein concentrates in the United States will exceed 1,810,000 tons for 1943.\u27 Because of this shortage it is very important to the war effort that every livestock producer-farmer, rancher, and livestock feeder-do everything within his power to use existing supplies efficiently and to produce more protein feeds. He can use them best by avoiding overfeeding and other waste of feed, culling out low-producing animals and selling them, and using methods approved by authorities to control diseases and maintain sanitation