Eighteen multiparousHolsteincowswer

Eighteen multiparousHolsteincowswereusedtostudythelongtermeffectofreducing
dietaryPconcentrationonintakeofDMandmilkyield,onbloodlevelsofinorganic
phosphate(Pi), Ca,vitaminD3, parathyroidhormone(PTH)aswellasassessingbone
turnover bytheuseofboneformationmarkerosteocalcin(OC)andboneresorption
markercross-linkedcarboxy-terminaltelopeptideoftypeIcollagen(CTX).Treatments
were initiated3weeksbeforeexpectedcalving,andcowswerefolloweduntilweek36
aftercalving.IndryperiodtreatmentswereLowP(LP)(1.7gP/kgofDM),MediumP(MP)
(2.1gP/kgDM)andHighP(HP)(2.5gP/kgDM).Afterparturitionandthroughout
lactationtreatmentswereLP(2.3gP/kgDM),MP(2.8gP/kgDM)andHP(3.4gP/kgDM).
Differences indietaryPwereobtainedbyadding0.60and1.19%mono-sodiumphosphate
per kgDMtoMPandHP,respectively.Thecowswerefedrestrictivelypre-partumandfor
ad libitumintakefromoneweekbeforeexpectedcalvingandthroughouttheexperiment.
Due toahighnumberofhealthproblems,LPtreatmentwasterminatedaftersamplingin
week 12,andcowswereshiftedtoHPandcontinuedonthistreatmentuntilweek36.
ReductioninPconcentrationfrom3.4to2.3gP/kgDMreducedDMI,milkyield,milk
proteinyieldandplasmaPi concentration,andincreasedserumconcentrationofCTX,but
did notaffectserumconcentrationofOCinearlylactation.ReduceddietaryPconcentra-
tion from3.4to2.8gP/kgDMdidnotaffectDMIormilkproductioninearlylactation.Dry
matterintakeandmilkyieldwerenotaffectedbydietaryPconcentrationinlatelactation.
PlasmaCaincreasedinLP,whereastherewasnoeffectonserumconcentrationofPTHor
on plasmaconcentrationofvitaminD3 pre-partum, inearlyorlatelactation.Despitean
estimatedmobilizationofPinearlylactation,onthebasisofresultsofCTXandOC,itis
not possibletoreducePconcentrationfrom3.4to2.3gP/kgDMindairycowsinthis
periodwithoutcompromisingDMIandmilkproduction.Theresultsindicateapotential
for reducingPconcentrationinearlyandlatelactationfromthecurrentrecommendations
of 3.4to2.8gP/kgDMwithouteffectsonperformance,butthislevelofdietaryPmight
not allowforrepletionofbonePmobilizedinearlylactation.

ผลลัพธ์ (ไทย) 1:

MultiparousHolsteincowswereusedtostudythelongtermeffectofreducing สิบแปดdietaryPconcentrationonintakeofDMandmilkyield, onbloodlevelsofinorganicphosphate(Pi), Ca, vitaminD3, aswellasassessingbone parathyroidhormone (PTH)andboneresorption bytheuseofboneformationmarkerosteocalcin (องศาเซลเซียส) หมุนเวียนmarkercross-linkedcarboxy-terminaltelopeptideoftypeIcollagen(CTX)รักษามี initiated3weeksbeforeexpectedcalving, andcowswerefolloweduntilweek36aftercalvingIndryperiodtreatmentswereLowP(LP)(1.7gP/kgofDM),MediumP(MP)(2.1gP/kgDM)andHighP(HP)(2.5gP/kgDM)AfterparturitionandthroughoutlactationtreatmentswereLP(2.3gP/kgDM),MP(2.8gP/kgDM)andHP(3.4gP/kgDM)ความแตกต่าง indietaryPwereobtainedbyadding0.60and1.19%mono-sodiumphosphateต่อ kgDMtoMPandHP ตามลำดับThecowswerefedrestrictivelypre-partumandforlibitumintakefromoneweekbeforeexpectedcalvingandthroughouttheexperiment โฆษณาครบกำหนด toahighnumberofhealthproblems, LPtreatmentwasterminatedaftersamplinginสัปดาห์ 12, andcowswereshiftedtoHPandcontinuedonthistreatmentuntilweek36ReductioninPconcentrationfrom3.4to2.3gP/kgDMreducedDMI,milkyield,milkความเข้มข้นของ proteinyieldandplasmaPi, andincreasedserumconcentrationofCTX แต่ไม่ได้ notaffectserumconcentrationofOCinearlylactation.ReduceddietaryPconcentra-from3.4to2.8gP/kgDMdidnotaffectDMIormilkproductioninearlylactation.Dry สเตรชันmatterintakeandmilkyieldwerenotaffectedbydietaryPconcentrationinlatelactationPlasmaCaincreasedinLP, whereastherewasnoeffectonserumconcentrationofPTHorใน plasmaconcentrationofvitaminD3 ก่อน-partum, inearlyorlatelactationDespiteanestimatedmobilizationofPinearlylactation, onthebasisofresultsofCTXandOC เป็นไม่ possibletoreducePconcentrationfrom3.4to2.3gP/kgDMindairycowsinthisperiodwithoutcompromisingDMIandmilkproduction.Theresultsindicateapotentialสำหรับ reducingPconcentrationinearlyandlatelactationfromthecurrentrecommendationsของ 3.4to2.8gP/kgDMwithouteffectsonperformance,butthislevelofdietaryPmightallowforrepletionofbonePmobilizedinearlylactation ไม่

ผลลัพธ์ (ไทย) 2:

สิบแปด Ca, vitaminD3, parathyroidhormone (PTH) aswellasassessingbone หมุนเวียน indietaryPwereobtainedbyadding0.60and1.19% ขาวดำ sodiumphosphate ต่อ kgDMtoMPandHP, respectively.Thecowswerefedrestrictivelypre-partumandfor libitumintakefromoneweekbeforeexpectedcalvingandthroughouttheexperiment โฆษณา. เนื่องจาก toahighnumberofhealthproblems, LPtreatmentwasterminatedaftersamplingin สัปดาห์ ความเข้มข้น andincreasedserumconcentrationofCTX แต่ไม่ notaffectserumconcentrationofOCinearlylactation.ReduceddietaryPconcentra- การ plasmaconcentrationofvitaminD3 ก่อนคลอด reducingPconcentrationinearlyandlatelactationfromthecurrentrecommendations ของ 3.4to2.8gP / kgDMwithouteffectsonperformance, butthislevelofdietaryPmight ไม่ allowforrepletionofbonePmobilizedinearlylactation

ผลลัพธ์ (ไทย) 3:

18 dietarypconcentrationonintakeofdmandmilkyield multiparousholsteincowswereusedtostudythelongtermeffectofreducing
,
onbloodlevelsofinorganic ฟอสเฟต ( Pi ) , แคลเซียม , วิตามินดี 3 ( PTH ) bytheuseofboneformationmarkerosteocalcin parathyroidhormone , การหมุนเวียน aswellasassessingbone
( OC ) andboneresorption
markercross linkedcarboxy terminaltelopeptideoftypeicollagen รักษา
( ซีทีเอ็กซ์ )เป็น initiated3weeksbeforeexpectedcalving andcowswerefolloweduntilweek36
, aftercalving . indryperiodtreatmentswerelowp ( แผ่นเสียง ) ( 1.7gp / kgofdm ) mediump ( MP )
( 2.1gp / kgDM ) andhighp ( HP ) ( 2.5gp / kgDM ) afterparturitionandthroughout
lactationtreatmentswerelp ( 2.3gp / kgDM ) , MP ( 2.8gp / kgDM ) andhp ( 3.4gp / kgDM )
% ความแตกต่าง indietarypwereobtainedbyadding0.60and1.19 โมโน sodiumphosphate
ต่อ kgdmtompandhp ตามลำดับโฆษณา libitumintakefromoneweekbeforeexpectedcalvingandthroughouttheexperiment thecowswerefedrestrictivelypre partumandfor
.
เนื่องจาก toahighnumberofhealthproblems lptreatmentwasterminatedaftersamplingin
, สัปดาห์ที่ 12 andcowswereshiftedtohpandcontinuedonthistreatmentuntilweek36 .
reductioninpconcentrationfrom3.4to2.3gp / kgdmreduceddmi milkyield , นม ,
proteinyieldandplasmapi ความเข้มข้นandincreasedserumconcentrationofctx แต่ทำ notaffectserumconcentrationofocinearlylactation
-
. reduceddietarypconcentra tion from3.4to2.8gp / kgdmdidnotaffectdmiormilkproductioninearlylactation แห้ง matterintakeandmilkyieldwerenotaffectedbydietarypconcentrationinlatelactation
.
plasmacaincreasedinlp whereastherewasnoeffectonserumconcentrationofpthor
plasmaconcentrationofvitamind3 ก่อนคลอด , บน ,inearlyorlatelactation . despitean
estimatedmobilizationofpinearlylactation onthebasisofresultsofctxandoc , ซึ่งไม่ possibletoreducepconcentrationfrom3.4to2.3gp / kgdmindairycowsinthis

periodwithoutcompromisingdmiandmilkproduction . theresultsindicateapotential

ของ 3.4to2.8gp/kgdmwithouteffectsonperformance สำหรับ reducingpconcentrationinearlyandlatelactationfromthecurrentrecommendations ,butthislevelofdietarypmight
ไม่ allowforrepletionofbonepmobilizedinearlylactation .