1. a small enclosure in which animals are restrained for handling or on a long term basis for intensive feeding. Called also corral. 2. female swan. add-on pen. in a feedlot, one in which cattle are put together a few head at a time over several days or weeks. Has a risk for health problems. pen check. the daily or twice daily examination of cattle in a feedlot to detect any sick animal.
Maple syrup boils at 7.1 degrees Fahrenheit above the boiling temperature of water, so a good thermometer can be used to determine when it's syrup and and the density can be measured. Â°Bx Degrees Brix (symbol Â°Bx) is the sugar content of an aqueous solution.
Michigan State University Extension provides the following information about maple syrup production in Michigan and how it is a good example of a natural resource enterprise. maple syrup season lasts only four to six weeks in the early spring when maple trees are dormant (i.e. before leaf buds swell and break open). When daily temperatures start to consistently rise above freezing maple sap begins to push up from the roots into the upper portions of the tree.