A local effect of endogenous ovarian hormones on the
in vitro responses of the bovine infundibulum to the
neurotransmitters norepinephrine (NE) and acetylcholine
(Ach) was investigated. Prostaglandin F₂α-tham salt was
utilized to induce luteal regression in six heifers
which were necropsied during proestrus. Six heifers were
also necropsied during the...
Chalkbrood is a mycosis of larvae of the alfalfa leafcutting bee,
Megachile rotundata (Fabricius). It is a serious threat to alfalfa seed
growers in western North America who use populations of this bee for
pollination. Basic studies were conducted to determine the etiology of
this disease and the course of...
The sale of raw logs from the Pacific Northwest (PNW) was at first
considered a desirable market for the sale of unwanted logs. It became
a rapidly growing market, and with its growth also came demands from
some in the PNW for restrictions against exporting logs. Some believed
This study compares production rates and costs for four ground skidding machines and for four harvesting treatments. The four
machine types studied were a Caterpillar 060 crawler (060), Caterpillar 518 rubber tired skidder (RTS), FMC 200 CA (FMC), and
International TD-8E crawler (TD-8E). Two treatments, conventional/whole tree and designated/tree length,...