2009 Proceedings of the Cornell Nutrition Conference For Feed ...

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Table of Contents Maximizing Milk Components and Metabolizable Protein Utilization through Amino Acid Formulation C.G. Schwab and G.N. Foster .................................................................................................................. 1 Challenges of Predicting Metabolizable Lysine Content of Ingredients S. E. Boucher .......................................................................................................................................... 16 The Cornell Net Carbohydrate and Protein System: Current and Future Approaches for Balancing of Amino Acids M.E. Van Amburgh, T. R. Overton, L. E. Chase, D. A. Ross and E. B. Recktenwald ............................ 28 Recent Research with Low-Starch Diets for Lactating Dairy Cows H. M. Dann .............................................................................................................................................. 38 Estimating Intestinal Digestibility of Amino Acids in the Rumen Undegraded Protein Fraction of Feedstuffs S. E. Boucher ......................................................................................................................................... 48 Effect of Level of Intake on Digestibility of NDF in Soy Hulls D.C. Hein, M. L. Thonney, D. A. Ross, and D. E. Hogue........................................................................ 59 Refining Nitrogen Feeding Using Current Knowledge of Recycled Urea and Microbial Nitrogen Uptake E. B. Recktenwald and M. E. Van Amburgh ........................................................................................... 66 aNDF, NDFd, iNDF, ADL and kd: What have we learned? E. Raffrenato, R. Fievisohn, K. W. Cotanch, R. J. Grant, P. J. Van Soest, L. E.Chase and M. E. Van Amburgh ......................................................................................................................... 77 Effect of Type and Length of Dietary Fiber on Growth, Efficiency and Carcass Characteristics of Feedlot Cattle M. J. Baker, D.E. Hogue, M.L. Thonney, and D.J. Ketchen ................................................................... 94 Evaluation of the Effect of Non-Esterified Fatty Acids (NEFA) and Β-Hydroxybutyrate (BHB) Concentrations on Health, Reproduction and Production in Transition Dairy Cattle from the Northeast USA D.V. Nydam, P.A. Ospina, T. Stokol, and T.R. Overton.......................................................................... 97 Integrating Nutritional and Grouping Management of Transition Cows T. R. Overton and D. V. Nydam ............................................................................................................ 104 Sauropod Dinosaurs and Gigantism: A Report of an International Conference P.J. Van Soest ....................................................................................................................................... 111 Phiddling with Phenylalanine: Influence of Dietary Amino Acids on Enzymes of Phenylalanine Metabolism in the Chick R. E. Austic ............................................................................................................................................ 122 Perspectives on Cornell’s Contributions to Poultry Nutrition Kirk C. Klasing ....................................................................................................................................... 133 Interpreting and implementing starch digestibility information in the field Ian C Shivas .......................................................................................................................................... 144 Interpreting and Implementing Starch Digestibility Information in the Field Charles J. Sniffen, Ph.D., Fencrest, LLC, Holderness, NH .................................................................. 148 Technology’s Role in The 21st Century: Food Economics and Consumer Choice Why Agriculture Needs Technology to Help Meet a Growing Demand for Safe, Nutritious and Affordable Food Jeff Simmons ......................................................................................................................................... 159 Demystifying the Environmental Sustainability of Food Production J. L. Capper, R. A. Cady and D. E. Bauman ......................................................................................... 174 An Evaluation of Milk Fatty Acid Composition of Whole Fluid Milk in the United States A.M. O’Donnell and D. E. Bauman........................................................................................................ 191 Using Forages in Dairy Rations: Are We Moving Forward? D.J.R. Cherney, J.H. Cherney and L. E. Chase .................................................................................... 202 Ammonia Emissions From Dairy Barns: What Have We Learned? J.M. Powell and G.A. Broderick ............................................................................................................ 210 Feeding Low Crude Protein Rations to Dairy Cows – Opportunities and Challenges L.E. Chase, R.J. Higgs and M. E. Van Amburgh .................................................................................. 220
2009 Cornell Nutrition Conference for Feed Manufacturers Tuesday, October 20, 2009 Pre-Conference Symposium by Adisseo Theme: Impact of Amino Acid Formulation and Nitrogen Efficiency in Dairy Cows 1:00 – 1:10 Welcome and introduction of speakers 1:10 - 1:30 Current dairy industry economics John Geuss 1:30 – 2:15 Maximizing milk components and metabolizable protein utilization through amino acid formulation Dr. Chuck Schwab 2:15 – 3:00 Challenges of predicting metabolizable lysine content of ingredients Dr. Sarah Boucher 3:00 – 3:15 Break 3:15 – 4:00 The role of amino acid nutrition in reproduction of dairy cows Dr. Jose Santos 4:00 – 4:45 Formulating for amino acids in CNCPS – present and future Dr. Mike Van Amburgh 4:45 – 5:15 Summary and Q & A session Dr. Brian Sloan Wednesday, October 21, 2009 Breakfast sponsored by BFI Innovations 6:30 - 8:00 The triangular relationship: diet, microbial activity and immune function; consequences for the dairy cow’s longevity and performance. Dr. Jan van Eys, North American Ruminant Nutrition Specialist, INVE Technologies/Nutri- Ad Morning Session – T. R. Overton presiding 8:30 – 9:00 Recent research with low-starch diets for lactating dairy cows Dr. Heather Dann 9:00 – 9:30 Estimating intestinal digestibility of amino acids in the rumen undegraded protein fraction of feedstuffs Dr. Sarah Boucher 9:30 - 10:00 Effect of intake on digestibility of NDF in soy hulls Dr. Mike Thonney 10:00 – 10:10 Presentation of Maynard Award Dr. Dale Bauman Conference Program 10:10 – 10:40 Break 10:40 – 11:10 Refining nitrogen feeding using current knowledge of recycled urea and microbial nitrogen uptake Erin Recktenwald
Page 1: 2009 Proceedings of the Cornell Nut
Page 5 and 6: Conference Staff, Speakers and Admi
Page 7 and 8: predicted flows of MP. Because they
Page 9 and 10: Figure 1. Revised NRC (2001) Lys an
Page 11 and 12: Figure 3. Lys and Met plots for mil
Page 13 and 14: and AMTS.Cattle (v.2.1.1) models (T
Page 15 and 16: MP on increasing the efficiency of
Page 17 and 18: high cows for both years were very
Page 19 and 20: Garthwaite, B. D., C. G. Schwab, an
Page 21 and 22: CHALLENGES OF PREDICTING METABOLIZA
Page 23 and 24: Figure 1. Chemical structure of lys
Page 25 and 26: Table 1. Blocked RUP-Lys and reacti
Page 27 and 28: and in vitro digestibility. However
Page 29 and 30: Table 4. Results from 265 blood mea
Page 31 and 32: ACKNOWLEGEMENTS The data summary of
Page 33 and 34: THE CORNELL NET CARBOHYDRATE AND PR
Page 35 and 36: If this overall value is more appro
Page 37 and 38: mean values for efficiency of use f
Page 39 and 40: efficiency of use of particular AA
Page 41 and 42: Fox, and W. Chalupa.1993. A net car
Page 43 and 44: RECENT RESEARCH WITH LOW-STARCH DIE
Page 45 and 46: Table 1 continued. Dietary content,
Page 47 and 48: Voelker and Allen (2003abc) replace
Page 49 and 50: fermentable starch (3.5%-units) was
Page 51 and 52: monitor the cow’s performance, an
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ESTIMATING INTESTINAL DIGESTIBILITY
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digestibility within feeds will all
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Table 1. Average in vivo AA and RUP
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presented in Table 3. Crude protein
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human foodstuffs, and originally re
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Novus International. 2008. IDEA. Po
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the present study was to quantify t
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experiments. However, the final wei
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This is surprising in view of the c
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REFINING NITROGEN FEEDING USING CUR
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ecycled urea-N contributed 37.5% of
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observed for DMI nor milk measureme
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procedure described here contains 8
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Table 4. Protozoal predation of bac
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Marini, J. C. and M. S. Attene-Ramo
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of digestion. This involves refinem
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three hours was instead used, as an
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Table 1: Comparison between the non
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improve recovery of lignin particle
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a reverse-phase column. Ether-linke
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Figure 3: Relationship between 24hr
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Figure 7: Relationship between 96hr
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Ellis, W. C., M. Mahlooji and J.H.
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EFFECT OF TYPE AND LENGTH OF DIETAR
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intake data, the cattle fed the By-
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cases of the diseases of interest:
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for prediction of disease. The cate
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Table 1. Receiver operator characte
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INTEGRATING NUTRITIONAL AND GROUPIN
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In a study conducted in a similar m
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and 109°F (THI 94) during the stud
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Gonzalez, M., A. K. Yabuta, and F.
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In the past 20 years there has been
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Dinosaur diets The plants eaten by
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Figure 2 A,B,C,D: The relation betw
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of fiber than ruminants while equid
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supports the hypothesis that the fi
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PHIDDLING WITH PHENYLALANINE: INFLU
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competition of large neutral amino
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A mixture of indispensable and semi
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and in other experiments that are n
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Table 4. Growth, feed intakes, PAH
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Lu, J. and R.E. Austic. 2009. Pheny
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During the late 1700s in Europe, th
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of energy and protein nutrition bec
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elated to the involvement of sodium
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In practical nutrition, it is impor
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Johnson, R. A. 1963. Habitat prefer
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INTERPRETING AND IMPLEMENTING STARC
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in starch content and corn silages,
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INTERPRETING AND IMPLEMENTING STARC
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All of the guidelines for starch di
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Feedstuff N DM range IVSD 7 SD Corn
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nonstructural carbohydrate / rumen
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ANALYTICAL METHODS For good estimat
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Larson, J., and P. C. Hoffman. 2008
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Key Data In50 years, the world popu
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With respect to increasing output,
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THE CONSUMER PERSPECTIVE When it co
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they want most in their food, consu
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devastating in poor nations where e
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additive for swine can reduce manur
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DeCamp, S., Hankins, S., Carroll, A
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DEMYSTIFYING THE ENVIRONMENTAL SUST
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The „good old days‟ of dairy pr
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„Grass-fed‟ beef production The
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RECONCILING GLOBAL AND NATIONAL EMI
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production, without negatively impa
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assumed to be produced with similar
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continent by the tractor trailer, a
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REFERENCES Anon. 2006. Road to reco
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http://faostat.fao.org/DesktopDefau
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etail milk supply. The first repres
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eliable recommendations about the h
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nearly identical whereas MUFA was d
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higher trans-11 18:1 and lower cont
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diets varied on organic farms and s
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Jensen, R. G. 1999. Fatty acid prof
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the optimum standing NDF is 38% for
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It is clear that fiber and lignin a
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Figure 3. From: Progressive Dairyma
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AMMONIA EMISSIONS FROM DAIRY BARNS:
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lactating cow’s energy requiremen
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exhaust duct per chamber. Stainless
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(Harper et al., 2009) are significa
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REFERENCES Aillery, M., N. Gollehon
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FEEDING LOW CRUDE PROTEIN RATIONS T
Page 227 and 228:
- There was an increase in % milk t
Page 229 and 230:
formulating rations is a tool routi
Page 231 and 232:
REFERENCES .Higgs, R.J. 2009. Nitro
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