04-Lancaster Farming, Saturday, November 26,1994' P( ’oultry Sdence Penn State Poultry T \ Pointers ; ANTICIPATORY FEEDING BY BROILERS H. S. Siegel Professor The pattern of feed consumption that is, the amount and the time that the birds eat —is an important cons ideration for broiler producers 3200 Series Rotory Cutters More Rugged, More Durable And More Versatile 9,10'/2 or 14 Foot Cutting Widths UA/1 Rated for Minimum BUSH HUG 40 to 80 HP Tractors For Pastures, For Roadsides, For Stalks... Here’s The Rotary Cutter You Need. Bush Hog's medium duty 270 Series Rotary Cutters are excellent tools tor the widest variety of land maintenance chores. And they're built tough, built to withstand rugged cutting in material up to 2-inches thick. Decks are 10 gauge steel, continuous welded ‘ and braced at all stress points. Select from three models, in cu standard, and for the 7-foot moc and economical semi-mount hit< is available. Round bladeholder and laminated wheels are also standard on all models Come in today and learn mon about Bush Hog's 270 Series Rotary Cutters. BUSH HOG ANDERSON TRACTOR SALES, INC. Jacobus, PA 717-428-3280 CHAMBERSBURG FARM SERVICE Chambersburg, Pa 717-264-3533 NORMAN D. CLARK & SONS, INC. Loysville, PA 717-789-3117 PARMER’S EQUIPMENT & SUPPLY CO., INC. Airville, PA 717-862-3967 LESLIE G. FOGG, INC. Bridgeton, NJ 609-935-5145 HINES EQUIPMENT Cresson, PA 814-886-4183 Bellwood, PA -814-742-8171 GEORGE N. GROSS, INC. Dover, PA 717-292-1673 GROWER’S EQUIPMENT Biglerville, PA A. L. HERR & BROS. Quanyville, PA 717-786-3521 Capital Region and processors. Feed efficiency, clearance of the digestive tract before processing, and resistance to high temperature are associated with the pattern of feed intake. Restricting the length of time available for feeding often gives improved feed conversion, CENTER, INC. 717-677-7133 'eterinary Scienci Stronger, Easier to Operate, Easier to Maintain 8 to 1014 Foot Digging Depths Rated for 20-100 HP Tractor BUSH HOG ir 7-feet. A three-i SEE YOUR LOCAL BUSH HOG DEALER' KELLER’S FARM MACHINE. INC. Quakertown, PA 215-536-4046 but it also often leads to overcon sumption that can hinder feed clearance from the gut in rapidly growing broilers. Excessive amounts of feed in the digestive tract are detrimental to effective heat loss during high temperature exposure and may also cause problems at the process ing plant. Any factor that causes overcon sumption may be detrimental to gut clearance. One of these factors is anticipatory feeding, which is defined as increased consumption of feed before a recurring period of feed unavailability. In other words, when birds become accustomed to periods when feed is not present (or at least not seen), such as per iods of darkness, they consume extra amounts of feed ahead of lime in anticipation of the non feeding period. Feed consumption prior to dark- Backhoes loir* hitch is ABC GROFF New Holland, PA 717-354-4191 MARSHALL EQUIPMENT CO. Beyer, PA 412-783-6333 MARSHALL MACHINERY. INC. Honesdale, PA 717-729-7117 NICARRY EQUIPMENT INC. Reading, PA 610-926-2441 NICHOLS FARM EQUIPMENT Bloomsburg, PA 717-784-7731 NORTH-EAST DISTRIBUTORS & EQUIP. West Clifford, PA 717-222-9020 ROVENDALE AG & BARN EQ Watsontown, PA 717-538-9564 SMITH’S FARM EQUIPMENT Newport, PA 717-567-3562 ness is often greater than that occurring after the dark period, according to May and Lott (1992), but anticipatory feeding does not occur when broilers are provided continuous, constant intensity light. However, May and Lott (1994) point out that a number of factors may stimulate anticipatory feed ing. Many commercial broiler and turkey houses are curtain-sided and therefore the birds are exposed to daily cycles of temperature and light intensity changes. Their stu dies show that if feed is available, bright periods of light (9.5-12.0 foot candles) followed by dim per iods (0.5-1.5 foot candles) would stimulate birds to increase feed consumption in the hour before the light began to dim. The effect was not as dramatic as when there was total darkness alternated with periods of light. Not All Fields Are Perfectly Flat That’s why the Bush Hog® model 2615 15-foot cdtter's wings are designed to float along contours as severe as 90 degrees up or 22 degrees down while shredding stalks, clipping pastures or cutting along rights-of-ways, drainage ditches, terraces and fence rows. As it does so, an automatic height adjustment keeps the wings cutting at the same height as the center section. A framing system featuring closed box members allows us to make the 2615 pounds lighter without sacrificing any of the strength you've come to expect from a Bush Hog. And, less weight not only means less wear and tear on your tractor but it has also allowed us to cut the price. Why pay more to get less - make a Bush Hog's success your success. BUSH OUb Why Bush Hog Squealers Mow down The Competition There are two basic reasons and quality Is the first. Each Squealer model is equipped with Bush Hog's tough gearbox that carries a 2-year warranty. All models, except the 42-Inch wide cutter feature oval blade pans, and the 60 and 72-inch wide models have an “In-line" shear bolt with ball bearing protection that can be replaced in a snap An optional slip clutch is available. The second reason for the Squealer's popularity is price Select any of 5 models. 42 to 84-Inches wide, and compare prices with the competition With a true pnce/quality comparison, it's easy to see why Squealers mow down the competition. CHARLES 8. SNYDER. INC. Tamaqua, PA 717-386-5945 STANLEY'S FARM SERVICE Klingerstown, PA 717-648-2088 STOLTZFUS FARM SERVICE Cochranville, PA 610-593-2407 TRACTOR PARTS COMPANY Bioomsburg, PA 717-784-0250 UMBERGER’S OF FONTANA Lebanon, PA 717-867-5161 C. J. WONSIDLER BROS. Quakertown, PA 610-536-1935 New Tripoli, PA 610-767-7611 Oley, PA 610-987-6257 PEACH COUNTRY FORD TRACTOR Richwood, NJ 609-589-3953 RODIO TRACTOR SALES Hammonton, NJ 609-561-0141 FRANK RYMON & SONS Washington, NJ 201-680-1464 The researchers also showed that although birds ate more at lower temperatures, this was not consid ered anticipatory feeding, as the birds did not anticipate the onset of high temperature by beginning to eat just before temperature rose. This research suggests that syn chronization of tne bird’s biologi cal clock to visually stimulated senses is an important cue to regu late feeding behavior. Regular per iodic noises or appearances of caretakers may provide other cues. For more information on antici patory feeding, poultry producers should consult Dr. J. D. May, USDA-ARS, South Central Poul try Research Laboratory, Missis sippi State, MS 39762. References: D. Lott, 1992. POULTRY Miy, J D. and B. SCIENCE. 71:951. D, Lott. 1994. POULTRY Msy, J. D. and B SCIENCE, 73:1398
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