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The Rural Voice, 2000-04, Page 30genetics, will benefit a farm that has 40 cows per worker twice as much as one with 20 cows per worker, Rodenburg points out. These changes will alter the appearance of dairy farms across Ontario, Rodenburg predicts. Typically, the most low cost expansion a tie -stall dairy operation could make was an addition to the existing bank barn. But as herd sizes grow from the 50 -100 -cow, the economics of a freestall operation become more favourable, particularly in terms of labour. That labour advantage is multiplied in moving to three -times a day milking which produces more volume per cow. Perhaps, he suggests, producers need to look at novel ways to take advantage of the efficiencies of larger units without higher costs, such as joint ventures where more than one herd uses a larger freestall facility. Perhaps gradual expansion can be undertaken by constructing a separate dry -cow barn that can be converted to house a freestall operation. The move to freestall operations requires an entirely notv philosophy from the experience producers have been used to in tie -stall barns, Rodenburg says. For instance, adding to older barns often creates ventilation problems because clustered buildings don't allow good airflow. If you start fresh with a new building, well away from the existing buildings, you can make better use of natural ventilation. Traditionally, barns have been kept close to the house but with a modern barn using drive-through feeding and cleaning systems, you'll want more room and may want to get farther from the current site. Rodenburg gives four goals of a new facility: • Improve cow comfort • Improve labour efficiency • Keep costs under control to make it affordable • Build in flexibility where possible. Long term planning can help make expansion more affordable, 26 THE RURAL VOICE ii.74 tt , 7 •r' Milking palours (above) and other freestall amenities, increase the milk - per -man ratio. Moving to freestall means starting fresh in a new building, not making do with the problems of the old bam (below). Rodenburg says. If you choose a site for a new barn well in advance and have it prepared, you can save money. If your site is going to require a lot of fill, bringing it in and letting it settle for a few years before you plan to build can save expensive packing. Choose a high, dry site. Many barns end up costing more than they should because too much emphasis is placed on building a structure tha, will not deteriorate with time, Rodenburg says, but simple pole frame buildings will probably outlast the current technology anyway. If additional heifer facilities are your immediate need, consider an open pole frame building with outside feeding. Then locate and design it so it can be widened to cover the feeding area, a drive through and three rows of freestalls to form a six -row barn. If cost is an issue, build a barn with minimal insulation, manual side wall curtains, tractor scraping, post and rail manger and sand -based freestalls. Additional insulation, controls on curtains, self locks, alley scrapers, mattresses etc. can all be added later when cash flow improves. Poor ventilation, lack of headroom and posts mean most old tie stall barns have little value in a freestall conversion. Make the best use of them for low density housing such as maternity and treatment, since these uses require lots of space and labour no matter where you put them. The parlour, Rodenburg says, is one of the major labour savers in the free stall equation but it is also a very high cost item. Milking in tie stalls or a low cost flat barn or starting with a simple but expandable parlour with no automation may be a way to spread the cost of freestall conversion over several years. While Rodenburg provided a pro -expansion scenario, Dennis Martin, OMAFRA Dairy Cattle Specialist, offered words of caution. It's important, he said, to expand for the right reasons, not just to follow a trend. "As a guide, if you're a candidate for expansion, your current equity must be high and both production efficiency and cost control should be at least average. For some people 'better', before 'bigger'. still applies." Martin demonstrated a computer spread sheet program, available free from OMAFRA, which allows producers to plug in their own figures to see if expansion would make sense. In some cases expansion may not make sense, he said. A well- managed 50 -cow herd with lots of production and debt free on 300 acres could provide a net income of $100,000, he said. If the farmer expanded to a 100 -cow herd it would cost $1.5 million to build a freestall barn and buy quota. Principal and interest expense will drive up the debt per litre of production. There are lots of good 40-50 cow herds that are making money, Martin said. The real.Catch 22 is if a farmer's child wants to enter the business. "How do we bring the next generation into the dairy industry?" "Realize change is going to happen. Realize where the industry is