PortaTroughs

Flushing ewes. When we wean ewes, we divide them into "fats" and "thins". The "fats" receive no grain. If we have too little grass of adequate quality or too little time to bring the thins to condition score 3.5; we supplement the "thins" with grain. Result: Many more lambs of adequate size and vigor are born and the ewe flock enters gestation in uniform condition.
Feeding show rams and ewes. Large sheep with relatively small stomachs as a % of their body size (common with many show breeds) cannot thrive on grass alone. Thus they often lose weight. This is particularly true if the forage is "watery", i.e. low in dry matter per pound. Because grain is concentrated, feeding these breeds grain in PortaTroughs while on grass enables them to grow without becoming unfit or flabby.
As a grass "extender" for ewes on stockpiled grass in early winter. Supplementing with grain and/or protein pellets enables them to stay outside on lower-quality grass longer without losing condition during gestation and pre-gestation. The ewes stay healthy and fit. The manure drops on the pasture instead of in feedlots or barns.
To fatten lambs while on grass. Getting lambs fat enough for the packer is impossible on most grass. An option to bringing them into a feedlot is to progressively supplement the grass with grain -- giving them a little more until they are on full feed.

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