10th Mid-Atlantic Dairy Grazing Conference

Transcription

1 ! A&*6B(2##!"#$%&'()#*$+%%,)-%./+%0))1"2%3"$+%% 4'"22"%5)(6"2+%% 78"#9):%&;"<9):+%"2=% %>9*)#;%.)%?#-):%!"#$%&'(#%)*#+,'-)-.(#/012# :;&7#71>*(#A%7#*67&,)6*#1-#8;%'%816'&C6#1;6#<-BB-A&),#%7=6817#-<#"4D F6'*#.%)%,6.6)1#! G&B9#='-*>8H-)#! I6='-*>8H-)#.%)%,6.6)1#!!76#-<#<%8&B&H67##! J%71>'6#.%)%,6.6)1#! K>==B6.6)1%B#<66*&),#! :;&7#71>*(#&7#=%'1#-<#%#B%',6#K+I/#='-L681#!!"##$%&'()*+,-./01(234(54678,4(-7("-92348:24,0( +)#OP?=%,6#7>'56(#A%7#*67&,)6*#8-)7&7H),#-<#QR# S>67H-)7#8-56'&),#T#='&.%'(#%'6%7E#! =%71>'6#%)*#8'-=M#<66*&),M#.%)>'6#%)*#)>1'&6)17M#%)*# %)*#%))->)86.6)17#! "%'.#5&7&17#1-#8-.=B616#7>'56(#! VOWW#<-'#8-.=B616*#7>'56(#! :%',61#H.6#=6'&-*E#! K>..6'#RWOO#1;'->,;#K='&),#RWOR#! $%1%#8-BB68H-)E##! XR#<%'.7#A6'6#8-)1%816*#! RY#<%'.7#8-.=B616*#7>'56(7#! 1

2 78"#"A;)#-:BA 3)'#1-" 5'#;8%,9'#-=" &'/;8%,9'#-=" C';"9 P-value (regions) D%'E%E"#6: X OY Q RY D%'E%,CF [2O#\#O2X T2O#\#X2R XY2R#\#QW2Q YTR D%'E%8)-E)#:% YQY#\#R[ YWQ#\#RTX O]TQ#\#YXY] OTMRPP D%'E%A'(:G [PP#\#QY [Q]#\#[P] YOQ]#\#YY]T RPMTQP 0.020! OO#<%'.7#=%'H8&=%16*#&)#$F^+#='-,'%.# *!15% of all dairy cows in FL and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purebreds, 25% crossbreds; 19 farms > 1 breed or cross I#))=%'#%A#':: >22/"9%A/99%#";)% QHR I#'(2%&(-:: OX#\#OW P'9:;)-2 RP#\#OW S)#:)$ RX#\#Q P'9:;)-2%T%S)#:)$ RO#\#R S)#:)$%T%P'9:;)-2 RR#\#OR!'2;*)9-"#=%T%P RW 5'#()1-"2%U)=%T%P OT S)#:)$%T%!-9V-21%&8'#;8'#2 [ W2:<)A-[)=%A#'::*#))= RT#\#OW P%T%S%T%&()=-:8%U)= RR S%T%P%T%&()=-:8%U)= OQ S%T%P%T%&Y!Y> R[#\#W Z;8)#%/2:<)A-[)= RW#\#W Average 22 ± 9% \6<'#;"2A) `'66*&),#,-%B7 a#-<#<%'.7 a#%7#1-=#o a#%7#1-=#r a#%7#1-=#y U)<#'=/AB'2 OO ] O OO [ R X!-9V%]'9/6) ] X Y R W==)# P W R Q,));%"2=%9)1: Q W Y Y 7"9]-21%"*-9-;$ [ O X W 5);%6)#-;%='99"#: R R W W,9/-=%6)#-;%='99"#: R W R W I'=$%A"<"A-;$ Y W Y W &;#)21;8 O O W W,";%"2=%^#';)-2 O W W O,/2AB'2"9%;$<) O W W O \6<'#;"2A) b>bb#'6%7-)7 a#-<#<%'.7 a#1-=#o a#1-=#r a#1-=#y,"-9/#)%;'%1);%<#)12"2; O] ] Q OX [ [ X!":BB: OO X Y X ^''#%/==)#%A'2E'#6"B'2 P R X R,));%"2=%9)1%<#'*9)6: P R Y Y.)";8 [ W R Y.-:)":) Y W W Y C)6<)#"6)2; O O W W 2

3 _":8%/==)#: &;#-< ^#)M=-< _-<) ^':;M=-< D%'E%E"#6: 5' c67 c67 c67 c67 T c67 c67 c67 c67 c67 X 5'% 5' c67 c67 c67 X 5'% 5' c67 O c67 R c67 Y c67 5' c67 c67 c67 R c67 5' 5'% c67 c67 O 5'% 5' c67 5'% c67 O 1 On fresh cows or during rainy weather only 2 When dirty Milk frequency:! 1 farm: 1x! 20 farms: 2x! 1 farm: 3x! 1 farm: 4x 40 kg = 88 lb 35 kg = 77 lb 30 kg = 66 lb d&)16'#eb@d8-ad*%(f# K>..6'#eB@D8-AD*%(f# +56'%,6# [T2R#\#O[2X# XO2P#\#O[2X# d&)16'#e86bb7d.bf# K>..6'#e86BB7D.Bf# +56'%,6# RXQMWWW#\#TWMWWW# YQ[MWWW#\#T]MWWW% 3

4 Most Least Most Least Farm ID Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Farm ID# 1# 2# 3# 4# 5 1 # 6# 7# 8# 9 1 # 10 1 # 11# 12# 13 1 # 14# 15# 16# 17 1 # 18 1 # 19# 20# 21 1 # 22# 23# Jan# Feb# Mar# Apr# May# Jun# Jul# Aug# Sep# Oct# Nov# Dec# Most Least Farm ID Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec U)":'2: D%'E%E"#6: 7"9]-21%<#'*9)6:%-2%;8)%:/66)# OW,"-9/#)%;'%1);%A'(:%<#)12"2;% T `/"9-;$%"2=%a/"2B;$%'E%1#":: X!"-2;"-2%:)":'2"9-;$%'E%6-9V%<#'=/AB'2 X P)";%:;#):: Y,))=%"]"-9"*-9-;$ O C-6)%'b%'#%]"A"B'2 W! Summer: 14 (61%) farms! Winter: 13 (57%) farms 4

5 ! I6,'-A1;M#S>%B&1(#%)*#S>%)H1(#-<#,'%77#! a#<%'.7#!ow#5&7>%b#67h.%h-)##!]#)-#67h.%h-)#! Y#5&7>%B#67H.%H-)#g#=%71>'6#=B%16#.616'#!O#=%71>'6#=B%16#.616'## 1 hectare = 2.5 acres 3'%77D<-'%,6 a#<%'.7 :-1%B#e+8'67f# G&01>'6#ehf T J>'6 P!)9)-A) ] ^''&,%16* i-)?&''&,%16* +))>%B#'(6,'%77 T#e[[#\#OQf R R OPXQ [W] +',6)H)6#@%;&% Q#eYR#\#ROf R W ]X Y[XP +''-A#B6%<#8B-56' O#eT2[f W W QR O[ b6'6%b#'(6 O#e[Wf W W YXP X] b-%71%b#@6'.>*% P#e[W#\#R]f Y W []Y ][O b-..-)#@6'.>*% X#eXY#\#R[f O X OWRO XX[P b-') W P W RYXW W b'%@#,'%77 W W X PPW RT b'&.7-)#8b-56' W W R X]] W "B-'%9&'9#@6'.>*% W O W OO] [X j&,,7#@6'.>*% O#e[Wf W O [X]# O]]T 4&.=-,'%77 W O O [X] OPXQ k%17 [#exy#\#tf Q R O]QW XYW J%)&8>. W W Y QRW W J6%'B#.&BB61 W Y W YTP XW J6)7%8-B%#@%;&% X#eRT#\#]f R W [O] Y[P I6*#8B-56' O#eT2[f W W QR O[ I(6# W R W X] QX K.>1#,'%77 OeR[f W W W R[T[ K-',;>.# W T W OQYY [Y] K1%','%77 Y#e[T#\#Y[f R O QOP TRPR :&l-)#p[#@6'.>*% R#eXY#\#OOf Y Y OYYX O]Y :&l-)#]#@6'.>*% W O W YW OOQ :'&H8%B6 W O W Y[P W d;6%1 W O W OWX OO] d;&16#8b-56' O#eYYf W W W OYO! +BB#<%'.7#,'6A#A%'.?76%7-)#=6'6))&%B#,'%7767E#! 14 farms grew warm-season annual grasses >A#):% i-)?.&06*# G&06*# b-')# K-',;>.# b'%@,'%77# J6%'B#.&BB61# Th# [Rh# XPh# 5'2M!-T)=%% ORh# OTh# XWh# Xh# YTh# `6'.>*%,'%77# K1%','%77# 4&.=-,'%77# `%;&%,'%77# YQh# XTh# 5

6 ! OP#<%'.7#,'6A#8--B?76%7-)#%))>%B#,'%7767# G&06*# i-)?.&06*# 5'2M6-T)=% k%17# :'&H8%B6# I(6,'%77#! /0%.=B6E#+B<%B<%#! i-1#,'-a)#-)#7>'56(6*#<%'.7# 5'2M 6-T)=% ddh%!-t)=% LcH% ROh# Ph# TOh# h#-<#f681%'67#.!\%qv1ya'(y="$r% YW2W# R[2W# RW2W# O[2W# OW2W# [2W# W2W# OP#OQ# O# RW# ]# OW#OY#O[#OT#OO#OX#RR#RY# Q# T# OR#O]# R# Y# X# P#,"#6%\.% 3'%C6*# K&B%,6# `%B%,6## F%(## 3'66)#b;-==6*# b-)86)1'%16## Average DMI: 39.0 ± 10.8 lb/cow/day % concentrate: 49 ± 21 YW#.!\%QV1YA'(Y="$R% R[# RW# O[# OW# [# W# O# T# OP#OQ# ]# OT#RR#RY#RW#O[#OW#OY# Q# OO#OX#O]#OR# P# X# R# Y#,"#6%\.% +*#B&@&1>.#,'%77# +*#B&@&1>.#@%B%,6# +*#B&@&1>.#7&B%,6# 3'%C6*# K&B%,6# `%B%,6## F%(## b-)86)1'%16## k1;6'# Average of DMI: 44.1 ± 8.8 lb/cow/day % concentrate: 60 ± kg = 88 lb 35 kg = 77 lb 30 kg = 66 lb 6

7 ! 3'%77#5%'&6H67M#<66*#='%8H867M#.&B9# ='-*>8H-)#%)*#'6='-*>8H-)#%BB#5%'&6*# K+I/#,'%)1#! "%'.6'7#A;-#=%'H8&=%16*#! K>'56(#*67&,)#%)*#*%1%#8-BB68H-)E#! "6&#$>#! $'2#G&96#F>1L6)7M#!)&56'7&1(#-<#^BB&)-&7#! $'2#j-;)#`6')%'*M#!)&56'7&1(#-<#36-',&%#! $'2#b>'1#4%8(M#!)&56'7&1(#-<#36-',&%#! m66,%)#3%(# Dr. Mary E. Sowerby University of Florida Regional Dairy