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The Rural Voice, 1991-02, Page 30r CALVING AT THE CARPENTERS Their smooth -running system spells success — and less stress A successful calving season starts well before the first calf drops to the straw. No one knows this better than Kristine and Andrew Carpenter, whose calving management system relies on pre -planning and prepar- ations that begin months ahead of the first birth of the year. The Carpenters use Herefords as a base in their commercial cow/calf operation near Arbor Vitae in north- western Ontario. Twelve miles north of Pinewood on Highway 619, you'll find one of the best organized farms around: annually calving out about 100 cows within 40 days, Andrew and Kristine have devised a system that emphasizes careful breeding, effi- ciency, and, most of all, herd health. You won't find any cattle in the barnyard through the winter months. Keeping a hygienic calving area is one of the Carpenters' first rules, espec- ially for first -calf heifers that haven't built up the immunity of old-time cows. The farm's 640 acres and many outbuildings afford plenty of room for wintering quarters, maternity ward, Kristine Carpenter and the intercom. by Darene Yavorsky photos by Daniel Holm calving pens, and separate "nurseries": one for the new mothers who are fed oats, and another for the old pros. By early February, the pens, shelters, and yards are clean and ready with thick, dry bedding. "Two weeks before calving," says Andrew, "we bring the cows home, and once they pass their first water bag we move them into the shelter barn. If they have problems outside, it can be pretty hard to catch up to the cow!" Mothering pens in another barn include two insulated rooms equipped with adjustable heat lamps. In cold weather, the insulated pens "warm up really quickly," says Kristine, "and there's room for the mum and her calf. One pen is a little bigger; we use that one for twins." The Carpenters are firm believers in the "bring -'em -in, move -'em -out" method of calving. Twenty-four hours in the barn is the limit. "We used to leave them in the barn for three days," says Kristine, "but they got scours. We decided then that they'd have to come out of there sooner." Adds Andrew: "And we disinfect the pens with lime after every cow." An outbreak of scours can be a memorable event. "In 1975," Andrew recalls, "we were in the barn day and night — scours like crazy. That's when we decided we'd have to keep a clean bed for the calves. That was a big decision, and it helped a lot." "We've never had a calf that died of scours," adds Kristine. "That year we didn't, either. And we haven't had that problem since then." When other farms in the district were battling scours last year, the Carpenters had only one incident. Keeping pens and barn yards scraped clean right down to the ground is the solution, according to Andrew. "1 clean my barnyards every two or three days. It takes a little fuel, but I think it's worth it." Not only is the risk of infection reduced, but a barnyard kept free of humps and hollows is safer, too. A cow that stretches on her side and rolls back into a hole won't survive for long; if not noticed in time, she and her unborn calf can amount to a costly loss. "Since I've been keeping the yards level, we haven't had that prob- lem, either," says Andrew. "And there's not so much mess there in the spring. It's cleaner." In the mean- time, he's found that manure and straw scrapings are just as good as round bales when it comes to making windbreaks. Andrew's ability as an innovator really shines in his portable calf sling: its canvas "cradle" supports the calf comfortably — no noisy moveable metal parts to rattle and frighten the animal — and the unit conveniently hooks onto any barn stall or fence rail. Andrew Carpenter: look after cattle. 26 THE RURAL VOICE