Dairy research (Continued from P«t« 76] a concreted 700-foot long fence-line feed strip The feed distribution method for all cows is by way of trucks equipped with self-unloading mixing boxes. Except for the milking area and a hospital bam, housing facilities are of the pole and roof variety, with no walls on any side. Manure is flushed from concreted surfaces at least once a day with a phenomenal 130,000 gallons of water. Calves are raised in an environmentally controlled barn featuring individual 125-HP JOHN DEER A thoroughbred that likes to run and run; a sure bet if your land is measured in sections The bloodline of the 4430 is obvious-4020 4320 These tractors became known as John Deere classics based on their performance in the field And the 4430 makes it three in a row The 4430 is a long-distance runner No matter what size field if enters you can count on a 4430 to run and run without having to stop and rest Its nimble and agile It instantly responds to any command Stop and let us tell you about the 4430 track record JOHN DEERE TRACTORS- A SOUND LONG-TERM INVESTMENT Double-pivot standards let 2500 Power-Reset Plows clear field a obstructions '' , -v 1 '•> it* . >' ‘ ■* •° ■i J - ' iT- ’ ‘ -0 Exclusive double-oivot design lets the 2500 Power-Reset Plow clear any rock that passes under the tractor drawbar Choose these 18-inch plows in 4- to 8-furrow sizes Drop by soon for more information on the 2500 with hydraulic reset Landis Bros. Inc. A.B.C. Groff, Inc. Lancaster 717-393-3906 New Holland 717-354-4191 Adamstown Equipment Inc. Mohn.on,RD2, PA 19540 (near Adamstown] 215-484-4391 M. S. Yearsley Neuhaus'es, Inc. Glen Rock, PA & Sons 717-235-1306 Wes.Ches.er 215 696-2990 stan|ey ft. K|opPf , nc . Agway, Inc. Chapman Equipment Center Chapman, PA 215-398-2553 Shotzberger’s Equipment Elm, PA 717-665-2141 stalls on a heavy steel mesh. A scries of fans and ven tilation tubes circulate fresh air and maintain even temperatures. Once these young replacements have been given their start in life, they arc sold to other far mers under contract that “Arkavalley" will buy them back at pre-dctcrmined prices. At a question and answer session following a tour of the research farm, the management and resear chers were asked to cite their main dairy production problems at “Arkavalley.” Pikeville Equipment Inc. Oyster Dale Road Oley RD2, PA 215-987-6277 Bernville, PA 215 488-1510 I. G.’s Ag Sales Silverdale, PA 18962 215-257-5136 Kermit K. Kistler Lynnport, PA 215-298-3270 Without hesitation, the five panelists agreed that the intense summer heat was their number one concern. It reportedly cuts the cows' feed intake and hurts the reproductive cycle The latter, in Itself, was the second most serious problem. A calving interval which stood at 13 3 months as of last Jan is significantly below some previous figures but further improvement is being sought The fact that neither hay nor com can be raised on this soil was not cited as a "problem” but definitely as a disadvantage. It is likely that the management would not pick the same location again if they had to make that decision a second time. There are other problems. That, from an editorial point of view, is good. Most, if not all farmers have problems and if this particular feed manufacturer is trying to find answers to them, then they must first have the problems to work with. Perhaps that is why managers here presented their conference in such a candid fashion. This part of Arkansas, for example, is not what dairymen from the Northeast or Midwest would call “pretty.” It is not im pressive in that sense, although the farm itself commands a definite amount of prestige. The farm is not a “show place” as such and some of the experiences here have been anything but enviable. Neveretheless, the operation is pretty much of an “open book” to visitors. At one time, for instance, a third of the cows here retained their placentas. Although nothing to be proud of, this statistic and several others which are equally poor, are pointed out to audiences. Some changes in construction and feeding have reduced that figure to 8.3 per cent. So it’s not all bad; in fact much is exemplary. Control many grasses and broad leaves in corn with no carryover. Foxtails, fall pamcum, crabgrass, pigweed, ragweed, smartweed and many more Lasso' Heroiaoe Lasso is a registered trademark of Monsanto Company Blddex is a registered trademark of Shell Oil Company Always read and follow laoel directions .1* t Ten to 12-thousand tons of sorghum silage can be stored in this bunker silo which measures 300 feet long and 60 feet wide. It is one of three such structures (the other two are smaller) in use at “Arkavalley Farm,” Ralston-Purina’s dairy research center. The silage is loaded Visitors to “Arkavalley” study a in free stalls. A pile of material is pumping pit near the 4Vz-acre lagoon, shown at left, it takes a month or (background) from which solids are more to cure it and still needs per removed for eventual use as bedding fection, farm researchers reported. Lasso plus Biadex tank mix Lancaster Farming, Saturday. March 13.1976 ' •* y, 5f -S „ ’ -K ' • • - • V' * ‘ 4 *" " ’ '_*'"• ,:«> - ? v*- 'J. •» - • '■• : .:*• Jjfc j ♦* either with a front-end loader or automatic machines designed specifically for bunker silo unloading. The material in the foreground is brewers’ grain, which is mixed with the silage in self-unloading truck boxes. Some problems normally associated with dairy herds, such as poor feet, misplaced abomasums, and ketosis are almost non-existent, although serious foot problems were “over whelming” just a few years ago. Feeding programs and equipment have been altered to better fit the program. All in all, graphs and statistics point out significant im provements between 1969 when the first cows were milked here, and 1975. Hot summer tem peratures, as stated earlier, are the number one dairy production problem in this part of central Arkansas. “Arkavalley” has tried several methods to reduce the ill effects of heat, in cluding airplane propellers, and a fine spray of water aimed at the cows while they stand by the feed bunks. When profit margins permit it, managers redesign the roofs and supporting structures. To further facilitate air movement and cooling, 160 fans have been installed under the roofs of the free stall areas where temperatures up to 115 degrees F. have been recorded. The weather continues to be a problem, although its effects are no longer as intense. Research into the matter continues. Production per cow also increased over the years and the farm now reports a rolling herd average in excess of 14,000 pounds of milk per head. Higher goals are being aimed for but the [Continued on Page 78) 77