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The Rural Voice, 1979-12, Page 37Cats in hen house can sa veproducer dollars Cats kept in a hen house can be effective for controlling mice in laying pens. and while they will not eliminate rats, they will restrict rat numbers. "When cared for properly, cats do not interfere with the management of a hen house, and indeed save money since the producer will not have to rely heavily on poisons," says Don Conrad, poultry specialist with Saskatchewan Agriculture's veterinary services branch. "Many producers consider cats a nuisance and a hazard as possible carriers of disease," Conrad said. "However, cats do not present a health hazard to hens, and in fact are significantly less dangerous than a population of mice which carries over from flock to flock and which contaminates feed and buildings." Cats work best when they are not allowed to leave the house. During flock changes and clean outs, they should be caught and confined. As well, for cats to be effective, the hen house must be reason- ably tight so cats are not overwhelmed by large numbers of mice. Producers with flocks of up to 10,000 hens should use three cats. Larger operations need no more than five cats. If cats are to be used successfully, they must be kept active. Too many cats reduces their activity and thus reduces their effective- ness. Female cats are more agressive than males, and young females under five years of age are best. Producers should watch cats they have chosen for their hen house and evaluate their aggressiveness. An aggressive cat spends most of its waking time roaming the entire pen area, patrolling or stalking areas which may harbor mice. Cats do not have to be starved to be effective. In fact hungry cats are Tess effective. They should be fed enough to maintain their health and strength. but not so much they become lazy. A constant supply of dry commercial cat food with water placed nearby has proved to be the best feeding program. Dry commercial feeds provide enough nutrition to keep cats healthy, but at the same time encourage cats to search for food elsewhere. Working cats should never be allowed to feed on dead chickens, or fed eggs, milk or food scraps. Clean litter boxes should be provided so cats do not dig and rake in dry areas of poultry manure. Boxes should be filled with commercial litter or loose garden soil. If litter boxes are not kept clean, cats will use other areas such as feeder bins, carts, litter or storage areas. To prevent cats from sleeping on carts, shelves and tops of egg graders, producers should provide them with an open topped sleeping box with carpet or rags to make nest. "Cats held in poultry houses are rarely bothered by disease," Conrad said. "However if a serious health problem does come up, all the cats should be replaced." What to look for in woodstoves Increased home heating costs have sparked renewed interest in wood heat. Although there are savings to be made, there are also pitfalls -- especially if you start out with an inefficient stove. "Since the wood heat boom began, hundreds of makes of wood stoves have appeared on the market," says Helmut Spieser, Ontario Ministry of Agriculture and Food energy management specialist. "There is such a wide range of price and quality, it pays to do your homework before you buy." Most people are interested in air -tight wood stoves which look similar to antique box stoves. However, the new models produce much more heat, with much less wood and much Tess attention. Under Ontario conditions, you can probably heat a well -insulated small house for the winter with about two cords of wood and a good air -tight stove. A cord is a stack of wood four feet by eight feet by four feet. "Before you start shopping for a wood stove, try to decide what size stove you need," says Mr. $pieser. "Large stoves require fueling less often than smaller ones, but they aren't as easy to control and can provide too much heat too quickly. Check with wood -burning neighbors to get an idea what size of stove you need." Once you begin shopping for a wood stove, remember that where you buy your stove can be as important as the type of stove you purchase. Look for an estab- lished dealer who will stand behind the Mailbox of the month (Located In Colborne Twp. Huron County) product in years to come. "As you examine the stove, look for sound construction," says Mr. Spieser. "A solid welded construction means that you can totally control the amount of air getting into the stove, to get the slow, six -to -eight hour burn that you want. Leaks in joints, doors and inlets reduce efficiency." Other features to consider when choos- ing a wood stove include ease of stocking and cleaning, and safety factors such as wire wrapping on handles to keep them cool at all time. Some of the new stoves offer firebrick lining. Mr. Spieser says although this type of lining increases the mass of the stove so that it takes longer to warm up and cool off, it isn't a necessary part of an efficient stove. "Another optional feature is shelves inside the stove for stacking the wood in the firebox," says Mr. Spieser. "These are primarily design and sales features which don't significantly improve efficiency." Many novice wood heat enthusiasts buy wood stoves with a fireplace option so that they can watch the fire. Mr. Spieser warns that while you are enjoying the fire with the stove doors open, you are creating a draft that is sucking the warm room air up your chimney. "For optimum efficiency, wood stoves should be operated with the doors closed," says Mr. Spieser. "If you want to watch the fire, buy a stove with glass doors or windows." Once you have purchased your wood stove, future success depends on you. The keys to safe and efficient wood heating are a good working knowledge of your stove and proper maintenance. THE RURAL VOICE/DECEMBER 1979 PG. 35