Dairy conference ✓ldentify all treated cows and indicate the proper time when the milk can be added in the bulk tank. ✓Milk treated cowslast. Milking equipment must be thoroughly washed and sanitized after milking a treated cow. ✓Discard all milk from a treated cow even though only one quarter was infused. Also, discard all milk following intavenous and mtra-muscular shots. Assume that a purchased animal was treated and test her milk before putting her milk into the tank. ✓Do not save milk from a cow which was dry treated for 30 days, even if she freshens early. Follow ing the normal 60 day dry period, withhold all milk for four days after freshening. ✓Whenever in doubt, have a cow or bulk tank sample tested, using a field kit or> official tests. Do not take a chance, as you will probably Past, Present & Future The sun never sets on BIG DUTCHMAN. This trademark is recognized around the world for the best poultry equipment, supplied by the most experienced poultry people. NERSHEY EQUIPMENT COMPANY, "WE SOL THE BEST I SERVICE THE REST ' Designers of Qualify Sysfei (Continued from Page A2O) get caught. The penalty is dumping milk from your entire herd for two days. Purchase and use your own field kit. Extension nutritionist Richard Adams outlined a feeding program for dairy heifers. He cited a recent southwestern Pennsylvania study on 2,400 heifers in 212 herds across 11 counties. Adams found that 40 percent of the animals rated poor in growth or substantially below breed average. Earlier DHIA studies of state animals showed that females that freshened at breed averages for growth may produce 17 percent more milk during their first lacation. “You would think that down here in this milk market that has a base surplus marketing plan that it would pay to hold some of these heifers over longer, in order to have them freshen during the base- 3iq Putdiman SYCAMORE IND. PARK 255 PLANE TREE DRIVE, LANCASTER, PA. 17603 (717)393-5807 Route 30 West at the Centerville Exit is lor Poultry, Stine end Grain Handley. <ITJ NCNSHEY EQUIPMENT iff I COMPANY, INC. making period,” he said. “The best plan is to get the heifers into production at 22 to 26 months of age, irrespective of the milk market.” ' “Every bit of the time they are not producing is overhead costs,” Adams reported. Adams called for adequate size without fattening. “Obesity will usually increase the heifer’s mamtamence requirements for the rest of her days,” Adams explained. The obese heifer may be harder to settle and can experience calving problems due to a fatty reproductive tract. Another problem, Adams notes, is decreased milk supply. Fat cells will replace the vital milk secretory cells in the mammary gland, reducing the potential to milk Overconditonmg will not only effect the first lactation but lifetime production as well. “Longevity is lower in these overconditioned animals.” Sexual maturity in heifers is indicative of size. Adams guide for AUTHORIZED Piitdiman. DISTRIBUTOR Lancaster Farming, Saturday, November 14,1981—A21 breeding size follows Holstein and Brown Swiss 750- 800 pounds or 54-66 inches of heart girth; Ayrshire and Guernseys 650- 700 pounds or 61-63 inches of heart girth; Jersey 500-600 or 58-60 inches of heart girth. Heifers should gam about 1.5 pounds per head daily from birth to breeding. At six months of age, heifers should be on a 2 0 to 2.2 percent of body weight hay equivalent daily forage intake Adams recommended all types of forages including pasture for calves over 6-months-old Average quality forage often is adequate if sufficient amounts are fed and the ration is balanced properly High protein forage is not essential Good pasture in ample supply plus free-choice minerals often will provide good growth Adams suggested a trace mineral salt and a recommended calcium phosphorus supplement Split heifer groups by size, when necessary to enable adequate forage and feed intake by smaller animals Concentrate amounts, said Adams, depends upon the forage quality. Forage testing better than 60 percent total digestible nutrients, may only require two to four pounds per head per day of concentrate. Less than 60 percent TDN may warrant four to six PURT FOR BKCBI YBBSWim MICRO CORK. MIGRO HP-470 Top yields. Fast drydown. This mid-season singie cross represents a yield breakthrough. It offers excellent emergence, strong stalks and a good root system for a healthy jump on yields. And its fast drydown helps you roll in those big yields early ... without high drying costs or moisture discounts. In its maturity, HP-470 is perhaps the best yielding hybrid available anywhere. Call today and get your seed on order. P. L. ROHRER & BRO., INC. SMOKETOWN, PA PH: 717-299-2571 pounds of concentrate per head daily. The water supply should be present in ample amounts Fecal cohform counts should not exceed 10 per 100 mihliters. Undersized herd replacement can result from a variety of factors and Adam’s factors are as follows • .'Considerably underfeeding forage of ration balance especially protein and minerals .'Lack of suitable facilities to enable frequent observation as wells- as ease of feeding and management Poor pasture management and lack of supplementary feed on inadequate pasture .'Lack of water or poor quality water Additional information on feeding dairy heifers for proper breeding size is available at local Extension offices •EM LANCASTER FARMING FOR COMPLETE AND lII* TO-DATE MARKET REPORTS
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