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www.poultryresearchcentre.caBroiler Diets to Maximize Carcass        Yield and Quality  F. I. L. Hernandez1, M. J. Zuidhof...
www.poultryresearchcentre.ca                          Dietary Energy DensityDietary Protein Density
Take Home Message•   Optimal nutrient densities to optimize performance    and to maximize profit    1. Good early start p...
Background• Quality in the meat sector  …has many dimensions (leanness, color, functional properties)• Maximize value (yie...
Cobb              Sex-separate                 HighPS      LowPSPRE-STARTER      3,335        3,245  1 – 11 d      kcal/kg...
TREATMENTS 85 %            92.5 %            100 %           107.5 %           115 % protein         protein           pro...
TREATMENTS DIETS                                       DBP Treatment                     VLow      Low         Rec        ...
CORNER DIETS (Analyzed)                A           B          C            D Starter      3,009       3,169       3,014   ...
TREATMENTS DIETS                                       DBP Treatment                     VLow      Low         Rec        ...
Techniques• BW (Live body weight)• Carcass  – Eviscerated (feet, head and neck removed)• Cut Up  - Breast (p. major + p. m...
Techniques- Equations are useful to discover optimal ages or management    strategies for lean chicken production•    Allo...
Effect of Prestarter on BW                              LowPS            HighPS          4.0                              ...
Effect of Prestarter on Breast Yield at                    42 d                      ( 2,135 g EBW)             700.00    ...
Prestarter Effects (HighPS)                  Summary• Improved BW at 42 d (2.73 vs 2.66 kg)• Improved Breast Yield at 42 d...
Effect of Sex on BW at 42 d          3                        2.92                    2.48          2BW (kg)          1   ...
Effect of Sex on Fat Pad at 42 d             80.00     71.98             70.00             60.00Fatpad (g)             50....
Effect of DBP on Breast Yield at 42 d             700.00                      679.32   678.02             680.00          ...
Effect of DBP on Fat Pad at 42 d             80.00                                   75.92             70.00              ...
Economic Analysis • Live cost of production (Supply Chain Model)     – BW     – Feed intake & FCR   -Processing Cost   - $...
FEED PRICES OF CORNER DIETS                      HighPS         LowPS PRE-STARTER         $354.20/t     $317.24/t         ...
Relative Feed PricesRelative cost         1.10        1.05        1.00        0.95        0.90        0.85           80   ...
Females          More Profitable:Males          •   High PS          •   Males
Optimum: 97% ME @102% rec DBP
Optimum Formulation*                      Cutup                           WholeAge            ME              DBP         ...
OPTIMAL DIETS (cut up scenario) 97% ME 102% DBP                HighPS               3,335 kcal/kg               22.80 CP  ...
Optimal Energy:Protein ratios                                                                Honourable                   ...
Final Considerations• Early nutrition has a strong economic impact• Nutritionists working with the end product in mind  ha...
Take Home Message•   Optimal nutrient densities to optimize performance    and to maximize profit    1. Good early start p...
Acknowledgements   P o u lt r y   In d u s t r y   C o u n c il   for Research and Education
www.poultryresearchcentre.caThanks!
www.poultryresearchcentre.ca                   Prestarter DietsIngredients                     HighPS           LowPS     ...
www.poultryresearchcentre.ca                   Corner Starter Diets                    StartA     StartB        StartC    ...
www.poultryresearchcentre.ca                   Corner Grower Diets                     GrowA     GrowB        GrowC       ...
www.poultryresearchcentre.ca                   Corner Finisher Diets                   FinishA    FinishB       FinishC   ...
Hernandez.Feeds090115
Hernandez.Feeds090115
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Hernandez.Feeds090115

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Broiler diets to maximize carcass yield and quality

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Hernandez.Feeds090115

  1. 1. www.poultryresearchcentre.caBroiler Diets to Maximize Carcass Yield and Quality F. I. L. Hernandez1, M. J. Zuidhof, D. R. Korver2, R. A. Renema2, Valerie Carney1 1 Alberta Agriculture and Food, Agriculture Research Division 2 Agricultural Food and Nutritional Science, University of Alberta
  2. 2. www.poultryresearchcentre.ca Dietary Energy DensityDietary Protein Density
  3. 3. Take Home Message• Optimal nutrient densities to optimize performance and to maximize profit 1. Good early start pays dividends 2. Drop the Energy:Protein ratio during grower and finisher phases
  4. 4. Background• Quality in the meat sector …has many dimensions (leanness, color, functional properties)• Maximize value (yield, quality, or profitability)… … usually means compromise between multiple competing objectives• Modeling applications were explored for using nutrition to optimize broiler production …and explore the impact of nutrition with the aim of improving lean meat yield
  5. 5. Cobb Sex-separate HighPS LowPSPRE-STARTER 3,335 3,245 1 – 11 d kcal/kg kcal/kg 22.80 CP 21.80 CP
  6. 6. TREATMENTS 85 % 92.5 % 100 % 107.5 % 115 % protein protein protein protein protein 94 % energy 97 % energy 100% energy*Cobb-Vantress recommendations for maximized growth rate and feed efficiency
  7. 7. TREATMENTS DIETS DBP Treatment VLow Low Rec High VHigh Low A AAC AC ACC CME Treatment Mod AB AABBCD ABCD ABCCDD CD Rec B BBD BD BDD D
  8. 8. CORNER DIETS (Analyzed) A B C D Starter 3,009 3,169 3,014 3,09411 – 20 d (kcal/kg) (kcal/kg) (kcal/kg) (kcal/kg) 20.70 CP 19.80 CP 27.80 CP 27.80 CPGrower 2,909 3,119 2,842 3,00820 – 31 d (kcal/kg) (kcal/kg) (kcal/kg) (kcal/kg) 16.39 CP 17.41 CP 23.41 CP 22.31 CPFinisher 3,022 3,137 2,972 3,17131 – 56 d (kcal/kg) (kcal/kg) (kcal/kg) (kcal/kg) 16.09 CP 16.78 CP 20.76 CP 21.52 CP
  9. 9. TREATMENTS DIETS DBP Treatment VLow Low Rec High VHigh Low A AAC AC ACC CME Treatment Mod AB AABBCD ABCD ABCCDD CD Rec B BBD BD BDD D
  10. 10. Techniques• BW (Live body weight)• Carcass – Eviscerated (feet, head and neck removed)• Cut Up - Breast (p. major + p. minor) - Abdominal fatpad (including fat on gizzard) - Legs (drum + thigh) - Wings
  11. 11. Techniques- Equations are useful to discover optimal ages or management strategies for lean chicken production• Allometric analysis was conducted using Huxley’s equation y = ax b• Where y is the weight of the carcass part (g); x is the weight of the eviscerated carcass (g); a and b are coefficients, estimated using the NLIN procedure of SAS.
  12. 12. Effect of Prestarter on BW LowPS HighPS 4.0 2.80 3.0 2.70 BW (kg)BW (kg) 2.60 2.0 2.50 High Low 1.0 Prestarter 0.0 0 7 14 21 28 35 42 49 56 Age (days) PS Level P<0.0001 P<0.0001
  13. 13. Effect of Prestarter on Breast Yield at 42 d ( 2,135 g EBW) 700.00 690.00 680.00 669.94 667.75Breast (g) 670.00 660.00 650.00 640.00 630.00 620.00 610.00 600.00 HighPS LowPS P<0.037
  14. 14. Prestarter Effects (HighPS) Summary• Improved BW at 42 d (2.73 vs 2.66 kg)• Improved Breast Yield at 42 d (670 vs 668 g)
  15. 15. Effect of Sex on BW at 42 d 3 2.92 2.48 2BW (kg) 1 0 Female Male Sex P<0.0001 P<0.0001
  16. 16. Effect of Sex on Fat Pad at 42 d 80.00 71.98 70.00 60.00Fatpad (g) 50.00 43.65 40.00 30.00 20.00 10.00 0.00 Female Male P<0.0001
  17. 17. Effect of DBP on Breast Yield at 42 d 700.00 679.32 678.02 680.00 674.13Breast (g) 657.25 660.00 647.59 640.00 620.00 600.00 VH H Rec L VL P<0.0001 P<0.0001
  18. 18. Effect of DBP on Fat Pad at 42 d 80.00 75.92 70.00 57.42 60.00 53.27 49.32Fatpad (g) 50.00 44.87 40.00 30.00 20.00 10.00 0.00 VH H Rec L VL P<0.0001
  19. 19. Economic Analysis • Live cost of production (Supply Chain Model) – BW – Feed intake & FCR -Processing Cost - $1.94/kg (whole bird scenario) - $2.13/kg (cutup scenario) -Carcass Value (CA wholesale / US relative) - Whole bird scenario ($3.48 < 2.3 kg < $4.15/kg) -Cutup scenario Breast ( x 1.78) Legs ( x 0.86) Other ( x 0.62)Sources: AAFC, USDA
  20. 20. FEED PRICES OF CORNER DIETS HighPS LowPS PRE-STARTER $354.20/t $317.24/t A B C DStarter $315.26 $348.95 $333.70 $367.31Grower $324.68 $360.31 $344.01 $379.72Finisher $319.66 $354.10 $334.20 $369.42
  21. 21. Relative Feed PricesRelative cost 1.10 1.05 1.00 0.95 0.90 0.85 80 90 100 110 120 Protein (% of rec) Energy (% of rec) 94 97 100
  22. 22. Females More Profitable:Males • High PS • Males
  23. 23. Optimum: 97% ME @102% rec DBP
  24. 24. Optimum Formulation* Cutup WholeAge ME DBP ME DBP28 97 102 97 9836 97 102 97 10142 97 102 97 10149 97 101 97 10156 97 101 97 99*% of Cobb-Vantress recommendations for maximized growth and feed efficiency
  25. 25. OPTIMAL DIETS (cut up scenario) 97% ME 102% DBP HighPS 3,335 kcal/kg 22.80 CP 3,011 STARTER (kcal/kg) 23.55 CP 2,911 GROWER (kcal/kg) 19.49 CP 3,015 FINISHER (kcal/kg) 18.42 CP
  26. 26. Optimal Energy:Protein ratios Honourable Optimal mentions Recommended Cutup Whole Cutup Whole ——————————— kcal ME / g CP ——————————— Starter 14.0 14.2 14.8 14.8 14.9Grower 16.0 14.2 14.6 14.6 14.7Finisher 17.1 15.7 15.8 16.0 16.1Cutup MarketOptimal Cal:P ratio is lower than recommended for grower and finisher phasesWhole MarketOptimal Cal:P ratio is slightly higher for the starter and grower phases than forthe cutup market
  27. 27. Final Considerations• Early nutrition has a strong economic impact• Nutritionists working with the end product in mind have the potential to improve value through improving lean yield, reducing carcass fatness
  28. 28. Take Home Message• Optimal nutrient densities to optimize performance and to maximize profit 1. Good early start pays dividends 2. Drop the Energy:Protein ratio during grower and finisher phases
  29. 29. Acknowledgements P o u lt r y In d u s t r y C o u n c il for Research and Education
  30. 30. www.poultryresearchcentre.caThanks!
  31. 31. www.poultryresearchcentre.ca Prestarter DietsIngredients HighPS LowPS %Corn Grain 50.8 35.6Wheat Grain 10.5 15.0Soybean Meal 32.3 22.0Wheat Bran - 19.4Corn Gluten Meal - 2.3Canola Oil 0.6 0.006Others (AA, Min, Vit, Binder) 5.8 5.6
  32. 32. www.poultryresearchcentre.ca Corner Starter Diets StartA StartB StartC StartD %Corn Grain 47.0 40.0 - -Wheat Grain - 10.0 38.3 41.0Soybean Meal 22.0 21.5 31.6 32.6Wheat Bran 25.0 19.7 24.0 17.8Corn Gluten - - - -Canola Oil 0.3 3.0 0.3 2.8Others (AA, Min,Vit, Binder) 5.7 5.8 5.8 5.8
  33. 33. www.poultryresearchcentre.ca Corner Grower Diets GrowA GrowB GrowC GrowD %Corn Grain 50.0 39.4 10.0 -Wheat Grain 2.0 10.0 32.9 40.0Soybean Meal 16.2 15.4 25.1 24.5Wheat Bran 25.0 25.0 25.0 25.2Corn Gluten - - - -Canola Oil 1.1 4.4 1.2 4.5Others (AA, Min,Vit, Binder) 5.7 5.8 5.8 5.8
  34. 34. www.poultryresearchcentre.ca Corner Finisher Diets FinishA FinishB FinishC FinishD %Corn Grain 52.8 47.1 9.8 6.9Wheat Grain - 10.0 35.3 38.9Soybean Meal 15.1 14.8 22.6 23.2Wheat Bran 25.0 18.3 25.0 20.8Corn Gluten - - - -Canola Oil 1.8 4.4 1.9 4.7Others (AA, Min,Vit, Binder) 5.3 5.4 5.4 5.5

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