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Browsing by Author "Hansen, D. E. (Donald E.)"

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Browsing by Author "Hansen, D. E. (Donald E.)"

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  • Artificial rearing of lambs on milk replacer diets 
    Oregon State University. Extension Service; Thompson, James M.; Rulofson, Franz C.; Hansen, D. E. (Donald E.) ([Corvallis, Or.] : Oregon State University, Extension Service, 1993-10)
    Extra lambs should be grafted to another ewe whenever possible. Our goal is for ewes to raise the extra lambs if the ewes have the available milk.
  • Calf scours: causes and treatments 
    Oregon State University. Extension Service; Hansen, D. E. (Donald E.) (Corvallis, Or. : Extension Service, Oregon State University, 1992-09)
    There are numerous causes of disease and death in newborn calves. In many locations, the leading causes of beef calf deaths are related to difficult birth (dystocia). After that, however, the most common calfhood problem ...
  • Calving difficulties in beef cattle 
    Oregon State University. Extension Service; Howell, M. E.; Zollinger, William A.; Hansen, D. E. (Donald E.) ([Corvallis, Or.] : Oregon State University, Extension Service, 1992-11)
    Calf death at or shortly after calving results in losses of over 3.5 million calves annually in the United States. About 45% of these losses are caused by dystocia (delayed and/or difficult parturition). The two prin ...
  • Detecting and controlling trichomoniasis in beef and dairy cattle 
    Oregon State University. Extension Service.; Hansen, D. E. (Donald E.) (Corvallis, Or. : Extension Service, Oregon State University, 1984)
  • Interpreting bulk tank milk culture 
    Gangwer, Michael I.; Gamroth, M. J. (Michael J.); Hansen, D. E. (Donald E.); Oregon State University. Extension Service ([Corvallis, Or.] : Oregon State University Extension Service, 1992-01)
  • On-farm screening tests for beta-lactam residues in milk 
    Gangwer, Michael I.; Hansen, D. E. (Donald E.); Bodyfelt, F. W. (Floyd W.), 1937-; Oregon State University. Extension Service; Washington State University. Cooperative Extension; University of Idaho. Cooperative Extension System; United States. Dept. of Agriculture; Pacific Northwest Cooperative Extension ([Corvallis, Or.] : Oregon State University Extension Service ; [Olympia, Wash.] : Washington State University Cooperative Extension ; [Moscow, Idaho] : University of Idaho Cooperative Extension System ; [Washington, D.C.] : U.S. Dept. of Agriculture, 1994-01)
    The public expects and deserves a safe food supply. This includes food free of antibiotic residues. Congress has empowered the Food and Drug Administration (FDA) to examine and closely monitor the use of animal dr ...
  • Perennial ryegrass (Lolium perenne L.) 
    Hannaway, D. B.; Fransen, S.; Cropper, James B.; Teel, M.; Chaney, M.; Griggs, T. D.; Halse, Richard R.; Hart, John M. (John Mervyn), 1947-; Cheeke, Peter R.; Hansen, D. E. (Donald E.); Klinger, R.; Lane, W.; Washington State University. Cooperative Extension; Oregon State University. Extension Service; University of Idaho. Cooperative Extension Service; Pacific Northwest Cooperative Extension ([Corvallis, Or.] : Oregon State University Extension Service ; [Pullman, Wash.] : Washington State University Cooperative Extension ; [Moscow, Idaho] : University of Idaho Cooperative Extension Service, 1999-04)
    Perennial ryegrass (Lolium perenne L.), also called English ryegrass, is a cool-season perennial bunchgrass native to Europe, temperate Asia, and North Africa. It is widely distributed throughout the world, including ...
  • Preventing calf scours 
    Oregon State University. Extension Service; Hansen, D. E. (Donald E.) (Corvallis, Or. : Extension Service, Oregon State University, 1992-09)
    Ensuring that calves receive adequate high-quality colostrum containing antibodies within two to four hours of birth is key to preventing scours. There are a number of factors that influence the quantity and quality of ...
  • Raising newborn calves 
    Oregon State University. Extension Service; Rulofson, Franz C.; Gamroth, M. J. (Michael J.); Hansen, D. E. (Donald E.) ([Corvallis, Or.] : Oregon State University, Extension Service, 1998-06)
    There are several reasons for raising calves without their mothers. Occasionally, a cow dies giving birth or doesn’t produce enough milk to support a growing calf. Some people buy calves to raise for beef and use g ...
  • Tall fescue (Festuca arundinacea Schreb.) 
    Hannaway, D. B.; Fransen, S.; Cropper, James B.; Teel, M.; Chaney, T.; Griggs, T. D.; Halse, Richard R.; Hart, John M. (John Mervyn), 1947-; Cheeke, Peter R.; Hansen, D. E. (Donald E.); Klinger, R.; Lane, W.; Oregon State University. Extension Service; University of Idaho. Cooperative Extension System; Washington State University. Extension Service; Pacific Northwest Cooperative Extension ([Corvallis, Or.] : Oregon State University Extension Service ; [Pullman, Wash.] : Washington State University Cooperative Extension ; [Moscow, Idaho] : University of Idaho Cooperative Extension Service, 1999-04)
    Tall fescue (Festuca arundinacea Schreb.) is a perennial, cool-season bunchgrass that is grown for pasture, hay, and silage. Native to Europe and North Africa, it was introduced from Europe to North and South America.

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