The Protein Content and Microchemical Tests of the Seeds on Some Common Iowa Weeds

Weed seeds are recognized as an important factor in the dietary of our useful birds. Other things being equal, those seeds having the highest nutritive value might be expected to figure more prominently in this regard than seeds less nutritious. In animal feeding, the protein content of the feed is taken as the measure of its nutritive value, and the cost of the feed is determined largely by the protein content as ascertained in the chemical laboratory. Hence the protein content of weed seeds is of some economical importance as related both to the maintenance of our native birds and to the control of the weeds themselves

In Vitro Susceptibilities of Mycoplasma hyopneumoniae Field Isolates

The in vitro susceptibilities of 21 Mycoplasma hyopneumoniae field isolates were determined using a broth microdilution technique. One isolate showed acquired resistance to lincomycin, tilmicosin, and tylosin, while five isolates were resistant to flumequine and enrofloxacin. Acquired resistance against these antimicrobials in M. hyopneumoniae field isolates was not reported previously

Agricultural Research Bulletins, Nos. 27–43

Volume 3, Bulletins 27-43. (27) Studies on the Formation of Gas in Milk; (28) Studies on the Clarification of Milk; (29) Studies on the Numbers of Bacteria in Milk Showing Various Changes; (30) Inheritance of Color and Horns in Blue-Gray Cattle; (31) Studies on the Creaming Ability of Milk; (32) Estimation of Calcium in Ash of Forage Plants and Animal Carcasses; (33) Studies on a Fusarium Disease of Corn and Sorghum (Preliminary); (34) Studies in Sulfofication; (35) Effect of Some Manganese Salts on Ammonification and Nitrification; (36) Influence of Humus Forming Materials of Different Nitrogen-Carbon Rations on Bacterial Activities; (37) Environmental Influences on Nectar Secretion; (38) Fishiness in Evaporated Milk; (39) Carbon Dioxide Production in Soils and Carbon and Nitrogen Changes in Soils Variously Treated; (40) Relative Influence of Microorganisms and Plant Enzymes on Corn Silage Fermentation; (41) Rapid Volumetric Method for Approximate Estimation of Chlorine in Milk; (42) Occurrence and Significance of Mannitol in Silage; (43) Effect of Sulfur and Manure on Availability of Rock Phosphate in Soil</p