The following are 10 important measures of a herd’s production performance, including milk, butterfat and protein production, breeding efficiency, milk quality as it relates to udder health, and cow turnover.
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Oceanic iron (Fe) fertilization experiments have advanced the understanding of how Fe regulates biological productivity and air–sea carbon dioxide (CO₂) exchange. However, little is known about the production and consumption of halocarbons and other gases as a result of Fe addition. Besides metabolizing inorganic carbon, marine microorganisms produce and consume...
Some important factors that affect the dimensional
control of oxide films on silicon were studied. Both N- and
P-type silicon with resistivities in the range of
0.014 to 200 ohm-cm and a (111) surface orientation
were employed in this experiment. The etching rates of
silicon dioxide in hydrofluoric acid (111)...