Changes in the plasma cortisol and glucose
level after applying stimulus into the jugular vein to collect blood,stimulus on the teat and the stimulus of milking in cows
その他(別言語等)
のタイトル
採血刺激,乳頭圧迫刺激および搾乳刺激による血漿 コーチゾール値ならびに血糖値の変化について 著者(英) Miyazawa Kiyoshi
journal or
publication title
Research bulletin of Obihiro Zootechnical University. Series I
volume 13
number 4
page range 229‑235
year 1984‑06‑20
URL http://id.nii.ac.jp/1588/00002140/
229
月蝕.励丑〔翫柚ⅦU血.,JJりタβ幻.・ガ恥2鼠Changesin the plasma cortisoland−glucoselevel after applying stimulusinto the jugular vein
to collect blood,Stimulus on the teat and
the stimulus of milkingin cows
KiyoshiM[YAZAWA
(1leceived:N〔}Vemberll.1983)
Summary
Thepurpose ofthis presentstudyis to determinethechangesirltheplasma
cortisoland the blood glucoselevelof thecowsafter且pT)1ylngStimulusintothe
]ugular vein tocollect blood.stimulus on the teatand the sもimulus ofmilking・
The blood sE]mples wcr〔COllected every one minute at the sametime afterap
PlylngeaChsLimulus,Plasmacortisollevelincreasedfrom4■6ng/mltolO・9ng/ml lO minutes after applying stimulus through the jugular vein.increased from8,O
ng/mlto13.4ng/m18 to13m血utes after applylng Stim11111S On the teat and incrcascdfrom4.9ng/mlto23.9ng/ml13min11teS afterapplylngthestimul11SOf miユking.B100dglucoseユevelwasunaffectedbythesestimuli.Fromtheseresults,
itis suggested thatin order to deteTmine the cortisollcvel,COllection of blo〔}d
fromthejugularveiJIShouldbedoneasquieklyaspossible.Ifbloodco11ectionis
r]OtSuCCeSSfulatthefirsttrialthenexttrialshould bedone60minuteslater.
effeets of applylng Stimulus on the]ugular Vein,On the teat and the stimulllS Ofmiユking Onthe relati〔}nShipbet\Veen bloodcortisoland blood glucosein dairycows witho11t the effect Ofadditionalstrcssfromhandling,
M血teri孔16and metl10ds Nine tame cows were selected and usedin しhis study. They were dividedinto three groups・The ages.the number of calvings.
milk yield,Stage Or pregnamCy and sexual cycle af each cow were recorded as shown in tat〕hl.Eacllanima】was put ona halter tIlen Placedin stanchion3hours hefore the start of the experiment.
1.Examination ofthe stimulusintothevein
lntrl止批ti仰
Itis wellknown that the adrenalgland rehcts sensitively to the stimulj ironl inside and outside of the aTlimaland secreしes gluco−
corticoids3・6). However,these stimuliare ex℃111dedwhen determination ofglucocorticoid SeCretion by the adrenalgユand are studied.
Further more the$e St11dies have been cc)nfined tosmallanimalsbecauseresulもSObtained[rorIl large animaユs were11nSatlボfactory.The main reasonforthisisthatkeeplngtheanimalquiet and tame duringt.hee叩erimentiHdirric111t,バO that additionELI strt∋SS On the animEll from handling hasan effecton thcadrcnalglands.
The purposeofthisstudyistodeterminethc
Department of Veterinary Obstetrics and Gynecology Schoolof Veterinary Medicine
Obihiro University of Agricu】ture aT】d Vt)LerinFlI●y Medicine Ol)ihiro,H(・kknitl(),O80
l
KiyosbiMIYAZAWA
T且ble】・RecoTds qf ttle eXperimentβ1cows
2別)
Group
Cow息e£冨i憲s
慧…㌻諾ek
St月ge Of Sexu邑1 pregnancy cycユe
A B C D E F G H I
i ︷ i
7 ハリ 8 ∩︶ ハu O ∧U nり 0 臥4柑柑151−1812飽7 mdnths 7¶l、)nths
NP*
NP
NI〕
Nf〉
NP
Nf】
NP
ー
慧購AEAE皿
E由minationl
ぶ温風mination2
E丈aminatioれ3
ヰ:n′Otpr喝nant 半*:&聴各加S b cdll8et もlood.In如掩11ing catheter w且S plaeedintQ the jtl糾1ar veim81日Od wa$¢01−
Iec陶djqstbeforeand a【so良一l.2,3,4,5,6,7,
8,9,10,38&nd駈min11teS after placi喝the lndwelIhg ca仇et即.
2,E鼠aminatio∫10n the stimuius on the te且L.
Aももhes白面etime th白油dlVelli喝C盈th紬rwas pl庄ビdintot上1ejugularvein.stimulusasstrong 舶】融1kiflg With白山eliciti僅g the s即r雨iなn Of mi1k was applied on theteaLfortenminuちeS,
臥叩d w冴β Ct∋‡】eぐted nin8 tim8S eVery qn8
minutein cow t),8times atltわ5minlユteS interva】sin¢OW E and then30and60血in11teS in both cow凱
3.Ex且minatlonofもhestimulus()nmilking.
At七触s昂me time theindwellil】g口琴仇叫r was plaqedi離b血白油押1ar veれthe11dd虐r was cl組hed fof3minlユteB Witb Lhesame p拍C昏du戸e 盛in thepビ坤aration ror miほi喝.1ヒねOk4 minutestのk阜ndmilkcow F,3minutesrorcく)W
G,3minⅥte畠一口reOWI‡弧d3minl止esf{)rCOW
r.Bl〔〉Dd w且S COllected14times every minute in℃(畑F aれd cow G.12tlme古庄tlt()3min11teS in一位rv也ls払cロWHandBtimesatlto王iminutes intervaIsin covl.Serlユm COrもisoland se∫Ⅱm glucoseweredetermirledbycompetitjveprotein bindi堰immunoassayヰ)andOtoruisineborate me軌od8reSPeCtユVely
Result
l.Changes血thepla昌maC(うrlisoIandblqod glucoselevelaJter明叩1ylng融imlllllSinto the Ju即ユarveintocoll自由bl帥d.Inere畠s¢ims◎rum 亡dnlsoll餅els\Vere・OtISeでVed afbrlmiれりもein cowんafter4minntesih cow B&nd a什計5 minu、teSincow C.でheincreas由sなrlユmごOrti−
sollevels up tolOmirluteSWere5.9昭ノml,7.8 ng/mland5.2ng/mlrespectivelyir王the3cow$.
However the max血umlevel乱丁ld the t血e of declin¢in the serum c(〕rtisbllevels were nDも determined be(1alユSe blood w叙S nOt(さ01l令Ct桧d rightafterthelOmiIlutehad expired,After30 min11teS,Serum COrti881decreasedわtlleりrlgト ロall帥elin colV月,after60miれuteSin c{)W A butincowC,highleveユD圭、serum由rtisoユcon嶋 tinued unti】餌疏inut貼.Bl¢Od Fluco局長18Vel Wa召maint8inedwithinnDrm且1ran官捻fr8mOtq
録〕minutes.
Z.Changeshlhep】asmaCOrtis¢1andt?1qゥd gltlCOヨelevelafter applylng StimulLIS On血e Leat_ Blood eortisolleveユincr¢aS8d from2 mlIlut已S after apノplylng Stimulus血沈e teat.
11h烏山cr{l且Sed blood col五日nllevelw且S7.8ng/
mliTICOW上),良nd仙1ng/mlincowEけig.3ト Art8ナ30minutes.serum c亡汀tisd】l即el§how感 a tendency to decreaヨe aTid after68minl通鴨.iも retⅥrIle【i拍tlle()riぎina】l帥el.Bl心Od glu叩Se
りこIt
PlasmaFK&glucoselevelarter坤plyingstlmulus
︵︻E\軸ヱ︻〇莞t〇Ud2駕り己
Time(min.)
yig.l・Changes血tlleplasmacortisollev¢1aftぞrapplylng stimulusint心the jugularvein to collect blood
Tjme(mim)
Fig.2.Ch乱ngeS血theblく〉Odglucoselevela一帖rapplylng stimulusinto the jugular vein to collect b]oc}d
Kiyoshi MlYAZAWA
二巨㌧き二こJ■一﹂こJ空︻品三
Time(mir】.)
Fig.a.Chang由iTltheplasmacorti60】1eveIaft8r applyiIlg Stim111心Onthe teat
∧U
看\ぎ︻こ姿岳意青馬冠
1
面 蘭
0 5
10
Tlm色(mirl.)
Fig・4・Changes血theb100dglucoseleve18fter applylng Stim11111S On the t組t
ー 4 −
2a3
Plasma地&glncos息1evela乱er a如1yi叩Sもim山s
′¢ノ
・・・−.︑Y′
\も
什 O C
5
1
二∈㌧‡u二ごとこ︑︑し爪≡云q一こ
−
Time(mill.)
Fig.5.Ch弧geS血theplasmacortisoll8Vel aft即日伸Iyi−1g Ftlmulus ofmilking
− 5
234
KiyoshlMIYAZAWAⅥme(min.)
Fig・8.Ch且噸eShtbebl¢Ddgユucoseleve】
after乱pplyⅧgStim山usQfmilking 1e代1was rnaintained witbin normalran酢
rro汀10to60minutes(Fig.4),
3・Changesintheblooddortisolandglucos8 1ev81after s土imulus nf milki咽.Serum cor一 極沖11pvelincre狙ed after2minute5in4ca眉e5
(Fig.5)・Value orthe blqod叩rtisolfr町n O ぬ13minutGS arter Cl幽nlng the ud加r w且S
14.8r⊥g/mlincowF.14.3Ilg/mli11COWG,2&2 ng/mlin c(〉W H8nd19.6r喝/mlip cowI..
別0雨eortis811evelshDWeda t8nd8ney柏de−
汀eaS¢incowF.cnw(ユand cowIbutshowをd a t8ndency t(〕increasein cow!1且fter 30 minutes. After 60 minutes,Semm COTtisol ユ郡eユretlJrned to th¢Qrlgユnall帥eiincowIblユt
in仏学口仇erthreec85eちitsh8Wedbigherlevels Ofser11mCOrtisolthantheorlglllallevel.Blood gl11COS81削畠1was maintained within normal rangやrrOm O t(〕68mi、nuteS
Dis仇ISSion
Frこ)m払isstudy,jt8ppe且rS that the紬tsid8 Sちimullagahst the cows且re reStrict¢dもo that applied加to也e了ug11ユ且r Vein,Orith¢t組t and 雨imp】vs of hand milk血g.These cqws were handled gently forぬe duration ot the study and were tame fTOm the beghning so恥且t瑚 additi〔狐色Istiml山S tbatm邑y C且ugeStreSSw邑S
applied.Thes(さreSlllts showed that cQliection Ofblood fromthejugularvein shゎul′d be血ne WithiTlthefirst5minute$11fapplyingth号Stim−
ulusin reaetictnin each cow.itisadvis8bleto eoIlectblooda㌍in揖ter細m血u鹿ire811e批ion i£nPtSuCCeSf山atthe rirsttrial.In pr帥io旬月 reportsbH)serumcortiso11evelweremprevar−
iablein blood coIlectedevery15to30mi∬血es.
The re且SOn\VaSthatit may justbeaph揮io−
loglCalchange− However,thi5Bhdy slユggeStS
モhattheSerum C【)rti呂011eveiafter3OminLlteSis
】nヨt 8tempOrary Ch氏ngein reaぐtion毛o tbe applied stimuli.Itis&lsowellkn/ロWnthatthe blDOd glucosel即elincreases under the血flロー 印Ce O∫ glucocortic8、1ds admini由ated from onぬde2〉・htIlissLudy,therew乱SnOrelatiQn−
血ip bねtween th¢Serum c8rtisol叫d blnod gユucoselevellmtilabout60m血utes且fLer tわ8
appli亡ation or thせS止muli・Tbe亭邑me reSult
was rep8rted by A卵rVall)h his previQuS SttldY・Fromもheseres山t呂,itappo且r3Lh8もthe blpodg】ucose w且$undeTthecontrdl(,rinsulin 弧d ghcagon加normalconditi臼mS弧d that COrもisnlhaS an aCtion8n g】yconゼOgenやSisin 血豆eolin呂ulin andgl11CagOnimb81釘ICe.凱im一 り1isuch asthatappliedtothev由n.甜上甑e嬢融 如d or miLk血g should be considefed wb孤
PlasmaFK&glucoselevelafterappユyingstimulus
235
bloodiscollectedfromdairycowstOdetermineserumCOrtisollevelandtoexaminetheadreno−
corti(租1一口∫1Ction.
RererenぐIS
l)AGÅRWAL,K.N.(1963):Thee汀ectofcortト costeroi由o11the blood celIval11eS_ Acta soc.med.upsalり88.3347・
2)KE岬ET打,B.R.(1970):Rfrects or various
町nt−1eticglu亡OCOrticoi由Onmllkproducもion and bloodglucose抽dketoI)et〕OdycDnCenレ T・aLions in normal atld ketotic colVS.
J.A.V.M,Å.,157,941・946.
3)M】YA邑Al町人K.,0】ヾ0.ⅠⅠ..MIYAKE,M・.and SATO,K.(1975):Stut】ies oれthe adrenocoト ticalfurlCLionin dairy cows W=h cystic
ovaries.J..一.Arlim.Repro.,20.138143,
4)MuRPHY,P.B.,ENG乱BERG.Ⅵ㌧,andPATTEE,
C.T.ぐ1963):Simple methodforde<terminar Lion ロー plaちma eOrticoids. J.C】iTl.
Endocrin..乳 293300.
5)PAA叩,M.J.,DESJÅRDINS.C・.ScIIULTZE.
W.D..乱nd SMIT軋」.W.(1972)= Cく〕rti−
cost色rOid corlCentr射ionin】ugular 8nd mammaI・y、・einbloodpla5maOr(−0、VSarter 椚ermilking.Am.」.\ret,Res.,汎17髭ト
1758.
射S′M汀Il,Ⅴ.GりCoNⅦY,E.N.,ar■d EDGER,
L.A.(1972):BovirleSerumCOrti(:Ojdresponce to mllking and exteT℃CePtive stimuli・J・
Dairy Sclり55.‖701173▲
7)WAGI膵勘+W.C.,and OxE封ⅧE【DER.S.L.
(1972):Adrenalf11nCtionillthe cow.Di−
urnalchanges8nd the erfects orlacta如n and neutrohypophysealhormones・ J・
Anim.Sci..34.63Iト635.
採血刺激.乳頭圧迫刺激および搾乳刺激
による血祭コーチゾール値ならびに 血糖値の変化について
宮澤 清志
帯広畜産大学獣医学科家畜臨床繁殖学教室
(帯広市稲田町酉2線11番地)
要 約
乳牛の血中コーチゾール値ならびに血糖値巷測定す る場合の血液採取方法を検討するため,乳牛に採血刺
艶乳頭圧迫刺激ならびに搾乳刺激を加え,.血中コー
チゾール値および血糖値の変化を敏幸した。
人に良く慣れている乳牛g頭を3群に分け,留置カ テーテルを用いて1分間隔で蓮続採血を行った。乳頭 庄迫刺激は留置カテーテル刺入と同時に10分間,搾乳 刺激は留置カテーテル別人と同時に洗浄3分間,搾乳
3〜4分間加えた。
採血刺激により10分後に血蟹コーチゾール値は平均 4.6ng/mlから10.9ng/mlに上乳乳頭刺激によ り8−J3分後に平均4.4ng/mlから13・4ngノm】に 上昇,搾乳刺激により13分後に平均4.9ng/mlから 23.9ng/mlに上昇した。また血糖値の凄化は観察さ
れなかった。
以上の結果から血菜コ【チゾール値札 わずかな刺 動こよって上昇することがわかった。そのため血堰コ ーチノール値を観察する場合は.乳牛の環境条件を一
定に保って,材料の採取をすばやく行わなければなら ない。また再度材料を採取する場合は,6D分以上の間 隔をおく必要がある。
血糖値は.採血前の刺激によって変動しないため,
特別に条件設定の必要性はないことが示された。
帯大研軋13(1984):229〜235.