A52-75-2007E.pdf - AgroMedia International Inc

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ParticipantsDow AgroSciences,Indianapolis IN USA• J.M. ArmstrongIowa State University,Ames IA USA• D.C. Beitz• G. Bobe• K.J. Koehler• R.A. Nafikov• J.W. YoungLouisiana State University,Baton Rouge LA USA• C. Norman• W.E. OwensMichigan State University,East Lansing MI USA• M.S. Allen• J.R. Black• B.J. Bradford• S. Harsh• J.W. LloydNittany Dairy Nutrition,Mifflinburg PA USA• R.A. PattonThe Dow Chemical Company,San Diego CA USA• S.L. Lee• R.W. ShutterThe Ohio State University,Columbus OH USA• C S PeterssonThe Ohio State University,Wooster OH USA• J.S. HoganUniversity of California,Davis CA USA• S.K. Hietala• C.B. TuckerUniversity of Connecticut,Storrs CT USA• S.M. Andrew• K.M. MoyesUniversity of Florida,Gainesville FL USA• T.R. Bilby• A. Guzeloglu• F. Michel• C.R. Staples• W.W. ThatcherUniversity of Minnesota,St Paul MN USA• S. GoddenUniversity of New Hampshire,Stafford NH USA• C.G. Schwab• N.L. WhitehouseUniversity of Tennessee,Knoxville TN USA• S.P. OliverUniversity of Vermont,Burlington VT USA• F. ZhaoUniversity of Wisconsin,Madison WI USA• G.R. Oetzel• E.C. Schwab• R.D. ShaverUSDA Beltsville AgriculturalResearch Center,Beltsville MD USA• D.D. Bannerman• M.J. PaapeUSDA Natural ResourceConservation Center,Watkinsville GA USA• L.A. HarperUSDA Sheep ExperimentStation, Dubois ID USA• G.S. LewisUSDHHS Centers for DiseaseControl and Prevention,Chamblee GA USA• V. Cama• W. GateiWashington State University,Pullman WA USA• A.A. Borm• L.K. Fox• C.T. Gaskins• D.D. Hancock• Z. JiangWisconsin Animal HealthLaboratories,Madison WI USA• D.C. Sockett12 Highlights in Canadian Dairy Cattle Research - 2007
ResearchSummaryIndexAnimal Welfare1 Stocking density and feed barrier design affect the feeding and social behavior of dairy cattle.................................. 212 Effect of hoof pathologies on subjective assessment of dairy cow gait.................................................................................. 213 Stall dimensions and the prevalence of lameness, injury, and cleanliness on 317 tie-stalldairy farms in Ontario.................................................................................................................................................................. 224 Effects of mixing on drinking and competitive behavior of dairy calves................................................................................ 225 Plasma melatonin and insulin-like growth factor-1 responses to dim light at night in dairy heifers............................ 236 Flooring in front of the feed bunk affects feeding behavior and use of freestalls by dairy cows................................... 237 Effects of milking on dairy cow gait...................................................................................................................................................... 248 Effects of continuous versus periodic milk availability on behavior and performance of dairy calves........................ 249 Hoof discomfort changes how dairy cattle distribute their body weight............................................................................... 2510 Brisket boards reduce free stall use....................................................................................................................................................... 2511 Effects of roughness and compressibility of flooring on cow locomotion............................................................................. 2612 Feed stalls affect the social and feeding behavior of lactating dairy cows............................................................................. 26Environment1 An approach for measuring methane emissions from whole farms......................................................................................... 292 Measuring greenhouse gas emissions from point sources in agriculture............................................................................... 293 A proposed approach to estimate and reduce net greenhouse gas emissions from whole farms............................... 304 Methane and nitrous oxide emissions from Canadian animal agriculture: A review.......................................................... 31Feeding1 Effects of alfalfa particle size and specific gravity on physical characteristics of alfalfa, rationand performance of Holstein dairy cows.............................................................................................................................. 352 Phosphorus status of lactating dairy cows fed total mixed rations containing0.24% vs. 0.36% phosphorus..................................................................................................................................................... 353 Milk production and milk composition of dairy cows fed Lac100 or whole flaxseed......................................................... 364 Ensiling characteristics, nutrient composition, and in situ ruminal and whole tract degradabilityof brown midrib and leafy corn silage................................................................................................................................... 365 Frequency of feed delivery affects the behavior of lactating dairy cows................................................................................ 376 Protein secondary structures (α-helix and β-sheet) at a cellular level and protein fractions in relationto rumen degradation behaviours of protein: A new approach.................................................................................. 377 Folic acid and vitamin B12 requirements of dairy cows: A concept to be revisited............................................................. 388 Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model)with inputs based on in situ and mobile bag technique measurements................................................................. 389 Dietary forage and nonfiber carbohydrate contents influence b-vitamin intake, duodenal flow,and apparent ruminal synthesis in lactating dairy cows................................................................................................. 3910 Effects of physically effective fiber on chewing activity and ruminal pH of dairy cows fed dietsbased on barley silage................................................................................................................................................................. 39Research Summary Index 13
Page 1 and 2: Highlightsin Canadian Dairy Cattle
Page 3: Table ofContentsIntroduction.......
Page 7 and 8: ParticipantsListAgriculture and Agr
Page 9 and 10: Participants• P.E. Shewen• K.V.
Page 11: ParticipantsInternational Collabora
Page 15 and 16: Research Summary Index10 Associatio
Page 17 and 18: Research Summary Index57 Efficacy a
Page 19: Animal Welfare
Page 22 and 23: Animal Welfare3Stall dimensions and
Page 24 and 25: Animal Welfare7Effects of milking o
Page 26 and 27: Animal Welfare11Effects of roughnes
Page 29 and 30: Environment1An approach for measuri
Page 31: Environment4Methane and nitrous oxi
Page 35 and 36: Feeding1Effects of alfalfa particle
Page 37 and 38: Feeding5Frequency of feed delivery
Page 39 and 40: Feeding9Dietary forage and nonfiber
Page 41 and 42: Feeding13Effects of tannic acid and
Page 43 and 44: Feeding17What is the true supply of
Page 45 and 46: Feeding20Effect of ruminally protec
Page 47 and 48: Feeding24Impact of B-vitamin supply
Page 49 and 50: Feeding28Responses to amino acid im
Page 51 and 52: Feeding31Lower pregnancy losses in
Page 53: Genetics
Page 56 and 57: Genetics2An iterative procedure for
Page 58 and 59: Genetics6Analysis of inbreeding and
Page 60 and 61: Genetics10Association of toll-like
Page 63 and 64:
Health1Bacterial meningitis and enc
Page 65 and 66:
Health5Synthetic peptide vaccinatio
Page 67 and 68:
Health9Bovine toll-like receptor 9:
Page 69 and 70:
Health13Immunization with plasmid D
Page 71 and 72:
Health17Progress in the development
Page 73 and 74:
Health21Immune response to Staphylo
Page 75 and 76:
Health24Genotype and subtype analys
Page 77 and 78:
Health27Activation of the hypothala
Page 79 and 80:
Health30Influence of the genotype o
Page 81 and 82:
Health34Agreement between three ELI
Page 83 and 84:
Health38Prevention of fatty liver i
Page 85 and 86:
Health41The cell-mediated immune re
Page 87 and 88:
Health45A comparison of serum harve
Page 89 and 90:
Health48Effects of prepartum intram
Page 91 and 92:
Health51Bovine whey proteins inhibi
Page 93 and 94:
Health55DNA-protein immunization ag
Page 95 and 96:
Health59Formulation with CpG oligod
Page 97:
Milk Production
Page 100 and 101:
Milk Production317β-estradiol redu
Page 102 and 103:
Milk Production7Characterization an
Page 105:
Reproduction
Page 108 and 109:
Reproduction3Follicular fluid conce
Page 110 and 111:
Reproduction6The impact of chromoso
Page 112 and 113:
Reproduction10Spontaneous uptake of
Page 114 and 115:
Reproduction14Characterization of l
Page 116 and 117:
Reproduction17Expression of phospho
Page 118 and 119:
Reproduction21Regulation of serine
Page 120 and 121:
Reproduction25 Na+ /K + ATPase as a
Page 123:
Author Index
Page 126 and 127:
Author IndexBrownlie, R. Health 6..
Page 128 and 129:
Author IndexKeefe, G.P. Health 10..
Page 130 and 131:
Author IndexPerez-Casal, J. Health
Page 132:
Author IndexZadoks, R.N. Health 47.
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