COCCIDIOSIS CONTROL IN BROILERS: CHANGES AND ADAPTATIONS - ARE WE REALLY MAKING PROGRESS? KENNETH W. BAFUNDO, PH.D. PHIBRO ANIMAL HEALTH.

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COCCIDIOSIS CONTROL IN BROILERS: CHANGES AND ADAPTATIONS - ARE WE REALLY MAKING PROGRESS? KENNETH W. BAFUNDO, PH.D. PHIBRO ANIMAL HEALTH Slide 2 USA: DISEASES OF GREATEST CONCERN 1987 1991 1995 1999 AIR SACIBDAIR SACJ-VIRUS IBDAIR SACBRONCH- ITISCOCCI ENTER- ITIS ASCITESCOCCIINF. PROCESS COCCILEG PROBS. IBDBRONCH- ITIS Slide 3 Coccidiosis: Ranking Among Subclinical Diseases of Broilers H. Cervantes, 2002 Proc. Western Poultry Disease Conference, pp. 220-223 Slide 4 COCCIDIOSIS CONTROL: TRADITIONAL POINTS OF EMPHASIS MANAGING THE DISEASE THROUGH EFFECTIVE ANTICOCCIDIAL USAGE MAXIMIZE PERFORMANCE MINIMIZE LESIONS MAXIMIZE PROFITABILITY Slide 5 COCCIDIOSIS CONTROL: RECENT POINTS OF EMPHASIS COST OF PRODUCTION SIGNIFICANT POLICY SHIFTS EU: ANTIBIOTIC BANS ARE IONOPHORES NEXT??? RE-IMMERGENCE OF NECROTIC ENTERITIS LIVE COCCI VACCINES IN BROILERS IONOPHORE ANTICOCCIDIALS FOR NE CONTROL Slide 6 COST OF PRODUCTION AGRI-STATS AND INDUSTRY NEEDS QUANTIFIES ALL ASPECTS OF PRODUCTION YARDSTICK AMONG COMPETITORS INPUT COST IS A PRIMARY CRITERION BIRD HEALTH AND OVERALL PROFITABILITY ARE SECONDARY Slide 7 ANTICOCCIDIAL DATA GENERATED BY AGRISTATS, INC. ~155 INTERGRATOR MILLS IN U.S.A. 90% SUBMIT PRODUCTION DATA AGRISTATS PROCESSES DATA, PROVIDES SUMMARIES TO INDUSTRY, ETC. SOME EXPERIMENTAL ERROR INVOLVED Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 USA: Quarterly Nicarbazin Use 1997-2001 (pounds x 10 6 ) Slide 14 Slide 15 LEAST-COST RECOMMENDATIONS LOW DOSAGES MINIMAL FEEDING TIME EXTENDED WITHDRAWALS RELIANCE UPON IMMUNITY A COMMON LEAST COST EXAMPLE: TO DAY 16 DAY 17 TO 28 AFTER 28 SALINOMYCIN ------------------- 44 PPM55 PPMWD Slide 16 Slide 17 LEAST-COST TO TRADITIONAL AGRISTATS NICARBAZIN BASED SHUTTLES HAVE MORE THAN DOUBLED (225%) FROM 2002 TO 2003. MEDICATED FEED HAS INCREASED INCREMENTALLY FROM 2002 TO 2003. Slide 18 FROM LEAST-COST TO TRADITIONAL FROM: STRAIGHT SALINOMYCIN 44 TO 55 PPM TO: NICARBAZIN 125 IONOPHORE WINTER 2003 (DEC. TO MARCH) MULTIPLE COMPANIES OVER 1 BILLION BIRDS FED Slide 19 FROM LEAST-COST TO TRADITIONAL RESULTS (ACROSS INDUSTRY): GENERALLY, 3 POINT IMPROVEMENT IN F/G E.G. 1.87 1.84; 5 lb. CHICKEN 0.15 lbs./ BIRD @ $130 US/TON FEED SAVINGS: ~ $10,000,000 NICARBAZIN COST: ~$650,000 NET FEED SAVINGS: ~ $9,000,000 Slide 20 STRATEGIC USE OF ANTICOCCIDIALS STRAIGHT PROGRAMS SHUTTLE PROGRAMS ROTATIONAL PROGRAMS Slide 21 RATIONALE FOR SHUTTLE PROGRAMS IMPROVE FLOCK PERFORMANCE MAINTAIN EFFICACY REDUCE LESION SCORES REDUCE RESISTANCE DEVELOPMENT IMPROVE PROFITABILITY Slide 22 RELIABILITY OF SHUTTLE PROGRAMS STARTER FEEDS NICARBAZIN NICARB COMBOS OCCASIONALLY, OTHER CHEMICALS GROWER FEEDS IONOPHORES Slide 23 LENGTH OF ROTATION PROGRAMS IN MONTHS Slide 24 ROTATIONAL RECOMMENDATIONS THREE WELL-DESIGNED PROGRAMS PER YEAR STRATEGIC MIX OF STRAIGHT AND SHUTTLES PROGRAMS SEASONALLY STRUCTURED PLANNED WELL-MONITORED Slide 25 NECROTIC ENTERITIS Slide 26 NECROTIC ENTERITIS IN BROILERS CLOSTRIDIUM PERFRINGENS GRAM POSITIVE SPORE FORMING TOXIN PRODUCING NECROTIZING LESIONS AFFECT GUT STRENGTH AFFECT CARCASS CONTAMINATION MORTALITY OPPORTUNISTIC COCCIDIOSIS, ETC., CERTAIN FEEDSTUFFS Slide 27 NECROTIC ENTERITIS IN BROILERS CLOSTRIDIUM PERFRINGENS MOST COMMON IN EU > 40% OF EU BROILER FLOCKS TREATED AMOXYCILLIN, AMPICILLIN USE OF IONOPHORES TO HELP CONTROL NE Slide 28 USE OF THERAPEUTIC ANTIBIOTICS IN POULTRY: UK >118% 13 tons Slide 29 IONOPHORES AND NE: DENMARK IONOPHORE USAGE HAS INCREASED >184% SINCE THE ANTIBIOTIC BAN IN 1998. Animal Pharm, August 2, 2002 Slide 30 COCCIDIOSIS AND NE IN BROILERS: EU IONOPHORES WILL BE BANNED FOR GROWTH PROMOTION IN 2006! WILL THE EU BAN IONOPHORES FOR THE CONTROL OF COCCIDIOSIS IN BROILERS? Slide 31 IONOPHORES IN THE EU IONOPHORES ARE ANTIBIOTICS CURRENT STATUS IS UNDER REVIEW NEW GUIDELINES BY 2008 IF CHANGES OCCUR, WILL AFFECT OTHER BROILER PRODUCTION AREAS (E.G. LATIN AMERICA, THAILAND, ETC). Slide 32 LIVE OOCYST VACCINES APPLICATION FOR BROILERS AND BREEDER PULLETS Slide 33 LIVE COCCIDIOSIS VACCINES LIVE VACCINES HAVE THE CAPACITY TO INTRODUCE DRUG SENSITIVE STRAINS OF COCCIDIA INTO A BROILER PRODUCTION FACILITY NOW USE BY SOME AS A ROTATION OPTION Slide 34 LIVE OOCYST VACCINES FACTORS INFLUENCING EFFECTIVENESS: ADMINISTRATION OF THE VACCINE LITTER TYPE AND DEPTH PARTIAL HOUSE BROODING MANAGEMENT PROCESSING AGE (BIRD WEIGHT) NECROTIC ENTERITIS ANTIBIOTIC USAGE Slide 35 FACTORS INFLUENCING THE SUCCESS OF A VACCINATION PROGRAM THE GREATEST SINGLE FACTOR INFLUENCING THE SUCCESS OF THE VACCINATION PROGRAM IS ENSURING ALL BIRDS ARE EXPOSED TO THE OOCYSTS IN THE VACCINE. WATER, FEED, EYE SPRAY, GELATIN PUCK, COARSE SPRAY IN OVO APPLICATIONS? Slide 36 FACTORS INFLUENCING THE SUCCESS OF A VACCINATION PROGRAM PULLET AND BROILER VACCINES ARE DIFFERENT USE THE APPROPRIATE VACCINE! TAKE EXTRA CARE TO BE SURE THAT ALL BIRDS ARE PROPERLY EXPOSED AMPROLIUM MAY BE REQUIRED TO LIMIT COCCIDIAL INFECTIONS Slide 37 FACTORS INFLUENCING THE EFFECTIVENESS OF VACCINATION PROGRAMS PARTIAL HOUSE BROODING NUTRITION WATER SOLUBLE VITAMINS MAY HELP MANAGEMENT LITTER MANAGEMENT BUILD-UP LITTER LITTER MOISTURE VENTILATION WATER MANAGEMENT Slide 38 POTENTIAL VACCINE IMPROVEMENTS ADDITIONAL EMPHASIS ON LIVE OOCYST VACCINES IMPROVING OOCYST VIABILITY CUSTOMIZING VACCINE SPECIES IN OVO APPLICATIONS Slide 39 CHANGES AFFECTING THE FUTURE OF COCCIDIOSIS CONTROL REGULATORY ISSUES AND THE REGULATORY ENVIRONMENT EFFECT ON PHARMACEUTICAL INTEREST RESEARCH SLOWED DRAMATICALLY REJECTION OF ANY ANTIBIOTIC ACTIVITY CONTINUED EMPHASIS ON EXISTING PRODUCTS Slide 40 MANAGEMENT AND COCCIDIOSIS CONTROL Slide 41 MANAGEMENT REQUIREMENTS FOR BROILERS TEMPERATURE: ZONE OF THERMAL NEUTRALITY AIR QUALITY: SUFFICIENT TO PREVENT RESPIRATORY STRESS/INSULT NUTRIENT QUALITY AND AVAILABILITY LITTER QUALITY: LIMIT VIABILITY OF INFECTIOUS AGENTS STABLE HEALTH PROGRAMS Slide 42 MANAGEMENT AND COCCIDIOSIS CONTROL FEED AND FEED QUALITY ENVIRONMENTAL MANAGEMENT AIR QUALITY MOISTURE REMOVAL FEED AND WATER MANAGEMENT STRESS BIRD DENSITY LITTER QUALITY Slide 43 MANAGEMENT AND COCCIDIOSIS CONTROL EFFECTIVE VIRAL VACCINATION IBD, MAREKS, IB CHICK QUALITY DOWN TIME Slide 44 COCCIDIOSIS AND MANAGEMENT FARM, GROWER, HOUSE MANAGEMENT IS THE PRIMARY FACTOR IN DETERMINING THE PERFORMANCE OF AN ANTI-COCCIDIAL PROGRAM. M.K. ECKMAN, 1995 Slide 45 COCCIDIOSIS AND MANAGEMENT THE GREATEST OPPORTUNITITES FOR IMPROVED FLOCK PERFORMANCE CONTINUE TO LIE IN PROVIDING THE OPTIMAL ENVIRONMENT FOR THE EXPRESSION OF GENETIC POTENTIAL IN BROILER PROGENY THAT ARE SELECTED FOR ECONOMIC TRAITS IN MEAT PRODUCTION. M.K. ECKMAN, 1996 Slide 46 ARE WE REALLY MAKING PROGRESS? Slide 47 PROGRESS? YES, ALTHOUGH INCREMENTAL THE PENDULUM IS SWINGING BACK TOWARD THE CENTER. AFTER EXPERIMENTING, WE ARE RE-LEARNING WE NEED TO CONTINUE THE PROCESS Slide 48 PROGRESS IN THE FACE OF CHALLENGE SIGNIFICANT REGULATORY CHALLENGES INFLUENCE PRODUCT DEVELOPMENT EFFORTS LIMIT AVAILABILITY OF NEW AND OLD TECHNOLOGIES MAGNIFY THE IMPORTANCE OF OUR EXISTING PRODUCTS REQUIRE PRUDENT CURRENT USAGE