Savings in feed costs when feeding in a controlled sheltered environment is as much as 40% some farmers say and this in main is from achieving a virtual 100% uptake of feed (nil wastage) + the cows when sheltered tend to eat or require less feed compared to when they are out in the field and exposed to the elements.
Cows also maintain or gain condition much easier and for less cost when inside a Redpath clear-roofed dairyshelter.
Evidence for protecting pastures with on-off grazing during winter.
Research in Taranaki compared winter grazing systems, illustrating the advantage of on-off grazing compared to 24 hour grazing and strip grazing with no back fencing.
Thomson N A, Judd T G, Johnson R J. 1993. Winter grazing – Is There a Better Way? Dairy Farming Annual 45:78-82.
Location: Taranaki Agricultural research Station, Normanby.
Measured over two winters: 1982 & 1983. Soil type: Stratford fine sandy loam.