Systool Web: a new on-line application for the French INRA "Systali" project
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1 : a new on-line application for the French INRA "Systali" project P. Chapoutot, O. Martin, P. Nozière and D. Sauvant patrick.chapoutot@agroparistech.fr 1
2 Outline of the presentation The French INRA "Systali" project Organization of Objectives of Pedagogical aspects Calculation aspects Some illustrations Conclusions 2
3 The Systali project 3
4 The INRA "Systali" project To predict more precisely: The NE, PDI, AADI supplies & the flows of other nutrients (VFA + Gas + Glucose + Fatty acids ) The animal requirements & their responses to NE, PDI & other nutrients Already published (2013 & 2014) Still in progress To enlarge the fields of application of the INRA feed unit systems ( hot countries, intensive diets ) 4
5 The INRA "Systali" nutrient supply model Prediction of the flows of diet nutrients More precise description of Digestive Interactions: Value(diet) = Σ j p j x Table_value(feed) j ± DI Empirical modelling of DI: Major impact on OM digestibility 3 Causes: Feeding level (DMI % BW) Prop n of concentrate (0< <1) Rumen Protein Balance (=CP intake CP duodenum) 5
6 OMDtable-OMDinvivo (%) dmotable - dmomesurée (corni,pco) 5,0 2,5 0,0-2,5-5,0-7,5 Y = X n=334, nexp=133, Rspec=-0.59, ETR= Major causes of Digestive Interactions modifying OM digestibility Rumen Protein Balance (RPB) =CPintake CPduodenum Influence de la balance protéique du rumen sur les interactions digestives 72,5 Base Bovidig (D.Sauvant, 2012) Rumen protein balance (gcp/kgdmi) OM digestibility % 77,5 75,0 70,0 67,5 65, Balance protéique du rumen (gma/kgms) Feeding Level (DMI%LW) Influence of DMI%LW on the diet OM digestibility Y= X n=400, nexp=152, RSD= Experiments focused on DMI influence 2 3 Database Rumener Database Bovidig 4 DMI%LW Proportion of Concentrate (PCO) Influence of the proportion of concentrate on digestive interaction OMD%table - OMD%invivo 0,0 0,1 0,2 Proportion of concentrate in diet DM 0,3 0,4 0,5 Bovidig Database: experiments focused on effect of concentrate (Sauvant, 2012) Y=6.5/(1+(0.35/X)**3) n=72, ETR=1.22 0,6 0,7 0,8 6
7 In addition Other processes impacted by the 3 factors of DI: - NDF digestibility & Rumen Fermented OM (FOM) - Protein and Starch digestive partition (through transit rate) - CH4 production - Urinary E & N production Rumen Protein Balance (ration) RPB = f(pdime, PDIMN) => Iterative process of calculation = Output data = Input data ( DI) More and more complex calculations Computer calculations needed 7
8 Organisation of 8
9 Home Feed Model Ration Model Calculations Downloads FAQ Webmaster Masterfile Contact Logout: PC Objectives of 9
10 Objectives of Due to strong demand from professionals To obtain further explanations about the new concepts To practice the use of the new calculation models To integrate all the new equations in their own tools A simple & powerful tool, quickly implemented (3 months) & funded by AFZ, with 2 main objectives: A pleasant e-learning tool for the nutrient supply model An efficient tool to compute feed & ration values 10
11 Home Feed Model Ration Model Calculations Downloads FAQ Webmaster Masterfile Contact Logout: PC Pedagogical aspects 11
12 Home Feed Model Ration Model Calculations Downloads FAQ Webmaster Contacts Global view Feed+Anim+Ration+Outflow Digestive Interactions Energy Nitrogen Starch Cell wall Fatty acids Amino acids Logout: PC Glossary Area Neighboring Predecessor Successor Equation Graphic RuProBalrefj Delta_OMd_Anij Delta_OMd_RPBj Delta_OMd_FLj Delta_OMd_PCOj OMdj FLrefj Intercept_RPB Intercept_FL Intercept_PCO Slope_RPB Slope_FL Slope_PCO Urea 12 Feed Model / Digest. Inter. / Predecessor / OMdj energy, nitrogen, Nitrogen cell-wall, starch, fatty acids Feed Ration Animal FeedCodj pondxj pctxj Typej 2 sub-models : the "Feed model" BW & DMI the TypeAni "Ration model" Xj TypeCj Variables gathered in different areas Representation RPBj of the chaining PCO variables FL according to the equations RPB(ration) of the models: Urea Slope_RPB LimRPBur Int_RPB RPBrefj Slope_PCO Int_PCO FLrefj Int_FL Slope_FL Detailed description of all the equations of the models DeltaOMd_RPBj Prop. Conc. DeltaOMd_PCOj ± Digestive Interactions Predecessors of OMd Neighboring-, predecessor-, or successor-diagrams Rum. Prot. Bal. Feeding level DeltaOMd_FLj OMdj OMd_Tj OMd Table Value OMd OMd DeltaOMd_Ani Graphs of the main relationships between variables
13 Different variable areas of the "Feed model" 13
14 Home Feed Model Ration Model Calculations Downloads FAQ Webmaster Contacts Logout: PC Global view Feed+Anim+Ration+Outflow Digestive Interactions Energy Nitrogen Starch Cell wall Fatty acids Amino acids Glossary Area Neighboring Predecessor Successor Equation Graphic Feed Model / Digest. Inter. / Predecessor / OMdj FeedCodj pondxj pctxj Feed Typej BW DMI Animal TypeAni RuProBalrefj Delta_OMd_Anij Delta_OMd_RPBj Delta_OMd_FLj Delta_OMd_PCOj OMdj FLrefj Intercept_RPB Intercept_FL Intercept_PCO Slope_RPB Slope_FL Slope_PCO Urea RPBj Xj Nitrogen TypeCj PCO Ration FL RPB(ration) Rum. Prot. Bal. Prop. Conc. Predecessors of OMd? Feeding level OMd Urea Slope_RPB LimRPBur Int_RPB RPBrefj Slope_PCO Int_PCO FLrefj Int_FL Slope_FL Table Value OMd DeltaOMd_RPBj DeltaOMd_PCOj DeltaOMd_FLj OMd_Tj DeltaOMd_Ani ± Digestive Interactions OMdj OMd 14
15 Home Feed Model Ration Model Calculations Downloads Global view Feed+Anim+Ration+Outflow Digestive Interactions Energy Nitrogen Starch Cell wall Fatty acids Amino acids Area Neighboring Predecessor Successor Equation Graphic RuProBalrefj CPj Delta_OMd_Anij FOMj Delta_OMd_RPBj MicProtj Delta_OMd_FLj NED Delta_OMd_PCOj PDIAj OMdj PDIEj FLrefj PDIMEj Intercept_RPB PDIMj Intercept_FL PDINj Intercept_PCO RuProBal(diet) Slope_RPB RuProBalj Slope_FL RPBZur(diet) Slope_PCO RPBzurj Urea Feed Model / Digest. Nitrogen Inter. / Successor / Predecessor / RuProBal(diet) / OMdj FeedCodj Amino Acids AaaDIEj Sum_AaaDIE(i)j AADI(i)j PDIME RPBzurj RPB RPBj RPBzur(diet) pondxj Xj Nitrogen RPB(ration) PDIMEj pctxj RPBj RPB(diet) RuProBal Iterative Loop FAQ Webmaster Contacts Nitrogen Feed Typej TypeCj RPB(diet) DOM PCO DOMj BW Ration Dig. Inter. OMd FL deltaomdrpbj DMI Animal TypeAni OMd Logout: PC Glossary Successors of RPB? OMd OMdj Predecessors of of OMd Energy Edj ndndfj Cell wall Urea Slope_RPB LimRPBur Int_RPB RPBrefj Slope_PCO Int_PCO FLrefj CH4Ej Int_FL DEj Slope_FL DNDFintj NDFduoj dndfj DeltaOMd_RPBj FOMj DeltaOMd_PCOj DeltaOMd_FLj MEj OMd_Tj DeltaOMd_Ani DNDFruj 15 MicProt MicProj NELj UFLj NEVj OMdj UFVj DNDFint
16 Home Feed Model Ration Model Calculations Downloads FAQ Webmaster Masterfile Contact Logout: PC Calculation aspects 16
17 Approach & Organisation of calculations Equations are used to estimate Feed values: Feed "Table" values (with FL=ref, PCO=0, without RuProBal) Feed "Diet" values (with FL, PCO & RuProBal of the actual ration) Additivity calculation used to obtain Ration values: "Systali" values of the diets Calculation of the Nutrient flows from the ration values Deliberately light structure of data: Simple organization of the Input variables (Rations, Feeds, User Table) No interpretation/transformation of the output variables (self-interpretation by users) 17
18 Chemical Criteria & INRA "2007" FEED values Calculation model of (Compo, OMd, N & St ED ) TABLE COMPO files: INRA Table included in User Table uploaded if needed Input Data FEED "Table" value calculation FEED "Diet" value calculation FEED files: FL ref PCO=0 FEED Identification INRA"2007" FEED values Systali "Table" FEED values Systali "Diet" FEED values (Source, Feed Code, % inc) FL & PCO RuProBal RATION value calculation RATION Files: INRA 2007 Model Systali "Table" Model Systali "Diet" Model Systali Nutrient Model (Type Ani, BW, DMI, urea?) RATION Identif INRA"2007" RATION values Systali "Table" RATION values Systali actual RATION values RATION Nutrient values 18 P. Chapoutot,
19 File structure of TABLE COMPO files: Chemical Criteria & INRA "2007" FEED values FEED "Table" value calculation FEED "Diet" value calculation 2007 Table Systali Table Systali Ration Feeds FEED files: FL ref PCO=0 FEED INRA"2007" Systali "Table" Systali "Diet" Identification F F7T FST FEED values FEED values FEED FSR values Storage of data FL & PCO RuProBal RATION value calculation RATION Files: INRA 2007 Model Systali "Table" Model Systali "Diet" Model NUtrients Systali Nutrient Model Rations R RATION Identif R7T INRA"2007" RATION values Systali "Table" Systali actual RATION RATION RST values RSR RATION values Nutrient RNU values 19 P. Chapoutot,
20 What can you do with all these data? Just use your brain and add your own touch! 20
21 Comparison of OM digestibility of rations "Systali" vs "2007" Source: J-B. Daniel (MosarCo Data base) OMd "Systali" (%) Y = X (n=1185, R²=0.54, RSD=1.95) OMd "2007" (%) 21
22 Comparison of the UFL values of rations "Systali" vs "2007" 26 diets from experimental farms (Grazing- & Maize silage based) (Source: Idele data) 22
23 Diff. Systali 2007 UFL values (/ kg DM) Influence of FL & PCO on the differences Systali of UFL ration values diets from experimental farms (Grazing- & Maize silage based) Influence dufl_s-7*r_ni of FL Grazing based diets (+Maize Sil./Grass Sil.) dufl_s-7*rrs_pco Influence of PCO (Source: Idele data) 0.3 Grazing based diets (+Maize Sil./Grass Sil.) Diff. UFL Systali (/ kg DM) Maize silage based diets (+Grazing/Grass Sil./Hay) 3 4 Maize silage based diets (+Grazing/Grass Sil./Hay) 23
24 Feed UFL values (/kg DM) Comparison of "Table" & "Diet" UFL values of feeds 26 diets from experimental farms (Grazing- & Maize silage based) (Source Idele data) Wheat Gr. Silage Maize Sil. Rye Grass RSM Form-RSM SBM 24
25 Conclusion 25
26 A user-friendly & powerful app A synthesis of all the equations of the Systali supply model A simple & illustrative representation of the chaining variables A very efficient tool light-speed calculations: only sec. for 600 rations including 6000 feeds! Systool web currently in French but an English version available very soon! Future evolutions: Short-term: Update the evolutions of the Systali models Later: Compare INRA Systali to other international systems 26
27 Thank you for your attention! 28
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