f 1 HV* » It‘ J ) (,1 <S'( lj>''J'i*".* ClO-Lancaster Farming, Saturday, October IS, 1994 What Implantable Products Are Editor’s Note: The safety of beef from cattle implanted with growth promotants was dis cussed in Part 1 of this article. Now, in Part 2, application of such implants will be discussed. Lowell L. Wilson Professor Of Animal Science Penn State UNIVERSITY PARK (Centre Co.) The active ingredients in different implantable products and the animals for which they have been approved are presented in Table 2.1. Implants are categorized aS natural steroid, synthetic steroid like, and nonsterbid compounds. Although most cattle producers are familiar with the correct use of implants, three factors must be emphasized: (1) Implants should be used only in those animals and in those dosages which have been approved and are recommended on the product label; (2) Each produc er should develop an “implant strategy” for the use of these pro ducts within his/her own system; (3) “Doubling-up” implants (using two products simultaneously or implanting too frequently) is usu ally a waste of money and can decrease animal performance and/ or carcass quality. Common Mistakes And Corrective Measures Because implants act much like hormones, their use represents replacement or supplementation of hormones. Castrated males produce little natural estrogen (female hor mone), and their androgen (male hormone) production is low Composting Training Sessions To Be Held CREAMERY, (Montgomery Co.) A Master Composter train ing senes will be offered again this year by Mont gomery County Cooper ative Extension’s Recy cling Education Program. The training includes, three Thursday evening i sessions from 6:45 p.m. to 8:45 p.m. on Oct. 20, 27, and Nov. 3, and will' cover in-depth informa tion on the biology of I composting, composting, techniques, troubleshoot-1 mg, and alternatives to composting It will takei place at the Upper Dublin U Township building on] Loch Alsh Road in I Upper Dublin. I At the final session on Saturday, Nov. 5, a com post park will be con structed. Compost parks are working exhibits of various types of compost bins complete with de tailed signs about the bins, and brochures on how to compost. The parks are maintained by Master Composters. The training is free, but registration is re quired. lb register, call the organic waste Recy cling Education prograqi at (610) 454-1245. Implanted Growth Promotants For Beef Cattle, Part 2 TaWt 2.1 Manufacturer*, active Ingredient*, end approved beef cattle u*e* of growth promotant Implant* l NetunHy occurring steroid product* Compudoee Elanco Synthetic steroid-like product* Frnspiix-H Hoechst Roussel 200 mg trsnbolons *cet*te Heifers (> 400 lb) Nonsterotd enebokc egent Ralgro MsNinekrodt 36 mg aersnol Vetennary •it I* recommended that bide Mended for brsedtog purposes not be Implanted with any product since there may be Interference with normal sexual development and subsequent lertWy level, however, recent research with Ralgro end Synovex-C Meat** Implanting heifer calves doe* not decrease subsequent fertility In them adherence to um of products only In approved beef cattle daseee end weights Is essential (read the product label) Therefore, estrogens are the prim ary and androgen the secondary hormones to be replaced or supple mented in steers. In heifers, androgen level is very low, and estrogens fluctuate. Therefore, androgen production is the primary hormone and estro gens the secondary hormones to be replaced or supplemented in heifers. All of the companies manufac turing growth-promotant implants have developed excellent instruc tional materials that should be reviewed by any individual who implants cattle. Almost anyone can insert implants, but it is easy to make mistakes that render the implant ineffective. Table 2.2 summarizes problems observed in misusingimplants, the probable causes, and how these mistakes can be remedied. Basi cally, the person doing the implanting must not work too quickly, must place the implant in the proper position (middle third of the ear from head to tip), and must Block Wall Being Restored With Gunite • Stone Wall Repairs • Dam, Reservoir & Spillway • Installation & Maintenance-of Repair Concrete Bunker Silos • Slatted Floor Systems • PreCast Gunite Lined Water or • Silo Repairs Manure Storage Tanks We 're t lhe ‘Concrete Specialists " MAR-ALLEN CONCRETE PRODUCTS, INC. Gunite Construction • Precast Concrete Products Bridg* Rapair • Tank Rapalr • Holding Tanka • Installation • Prs-Qjalltlad by PannDot 20 Cocallco Creek Rd. Ephrata, PA 17522 (717) 859-4921 Manufacturer tmptent or distributor Synovsx-C Syntax CalfoW Upjohn Impfus-H Upjohn Bynov*x-H Syntax ImpluK'S Upjohn Synovax-S Syntax Finapilx-S Hoechet-Rouesei I4omg(r*nbolon**e*tat* Steer* (> 400 lb) Revalor-S Hoachst-Rou***l 24 mg estradiol and 120 mg trsnbolooa acatat* 1-800-477-4921 -r'-f Active tnpredtenl(s) Approved uses in beef eetu** 3 Calves steers heifers 24 mg estradiol lOmgastfidiolsrW Catva* lOOmgprogaatarona (>4S days old <4OO lb) Heifers (> 400 ib) 20 mg estradiol and 200 mg tastarona Steers (> 400 lb) 20 mg estradiol and 200 mg progesterone Steers (> 400 lb) All cattle use sanitary procedures with both ear and implanting equipment. Growth And Carcass Changes Implant side effects such as stagginess, bulling, and vaginal prolapse have been reported. While there is individual variabili ty in how animals metabolize com pounds administered through implanting, adverse side effects such as these usually are due to poor implanting technique. For example, if an implant is crushed or placed too close to the base of the ear, the level of hor mone in the animal will be increased immediately due to a high early absorption rate. If implants are placed in the cartil age, form abscesses, or have pel lets missing, a low level of circu- ► * •’’"■•in - f vailable For Cattle? Problem Abscass or sarurn Lsck of sanitation, infection Disinfect aquipmant. dry ears, around implant Improvt restraint Bunched panels Ratrograda abacass Inlactioo altar implanting In cartilage Crushed pedal Missing implant Separated pedal Partial implant Psdet too doe# to head Inexperience Walled-off implant •From Compudoaa Technical Manual (1912) lating compound will result. This wide variation of hormone level among individuals within a group can lead to bulling and rid ing problems. Again, this is not the fault of the product, but rather of the manner in which it was implanted. Under recommended usage, practically every implant will pro vide a 5- to 25-percent increase in average daily gain in most types of cattle. Increases in feed conversion efficiency are less, usually ranging from 5 to 15 per cent. There may be an increase in appetite, but even if feed consump tion is not increased—such as in a controlled, limit-feeding situation there should still be an increase in growth rate. The increase in feed-conversion efficiency may be nill or negligible. Growth-promoting implants act by diverting nutrients within the SPiBBagBMD TPitaaacasKa SPuaßßcrama HEADLOCKS THREE SIZES AVAILABLE TO MEET I ALL YOUR CATTLE HANDLING NEEDS I EXTRA HEAVY CONSTRUCTION FEATURES S * 1.9” O.D. High Yield Tube Top & Bottom Frame * 1” structural pipe on verticals & locks g * All yokes lock on individual catches, no strain on control rod B * Yoke stabilizer on large sizes 9 * Unique design allows more head room irj * Neck bar can be removed or adjusted without topis * Individual lock on each yoke for holding one or more a animals 0 * No loose pins or parts to get lost in manure or drop in pit 1 PAUL B. ZIMMERMAN, INC. 0 295 Woodcornar Rd. 1 Utils, PA 17543 0 1 Mil* W**t of Ephrata Sj PH: 717-738-7365 SPiaaanaaia yißaanana fPiBBUPMip fgiMawagp *■ Tabfe 2.2 Implanting mfetahas and solutions* Naadla movad. poor restraint Improva call la rastraint Poor naadla. too last, impropar piacamant Naadfe not fufly insartad Not advancing cartrtdga, through Chack Implant position pinch tha aar, abscaas In skin implant sita shut Rapid withdrawal of needle. Stow down, withdraw needle stowfy processing too last Noedto too short, too feet. Uu needle provided with implant fcor restraint application stow down, good restraint animal’s body to muscle deposi tion and by extending the animal’s growth period. Although meal from implanted cattle seems to have less fat, the same amount is simply distributed throughout an increased amount of available muscle tissue, giving the appear ance of a leaner meat If implanted and nonimplanted animals of simi lar frame size are slaughtered at the same weight and compared as to carcass quality grade (marbling), implanted cattle usually grade lower. However, if slaughtered at the same compositional endpoint (fat thickness, for example), car cass quality grade usually does not differ. Some studies have indi cated increases in average daily gain of up to 25 percent and a $4O per head return over cost from the use of implants. Average return over cost is $S to $l5 per head. Call or Wrlta For Addition ->1 Infomatlon And Your Nearaat Dealer Solution Pinch injection site after implanting sanitation New needle slow down, place implant properly Fully insart naadla Implant only In middle one third of ear Improva sanitation (Turn to Pago C 11)
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