Comparative Study on Efficacy of Different Medicaments on Postpartum Anestrus Dairy Cows

Journal of Applied Biological Sciences

K. H. El-SHAHAT¹  A.BADR¹ 

关键词: Postpartum anestrus;    Inactive ovary;    Sub estrus;    Dairy cows;    Treatment;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Theaimofthepresentinvestigationwasaimedtoevaluatethecomparativestudyefficacyofdifferentmedicamentsonpostpartumanestrusdairycows.ThestudywasconductedonfortyeightFriesiancows.Thetrueanestrouscows(Experiment1,n=32)wererandomlyallocatedintofourequalgroupsof8cowseachaccordingtothedesignoftreatment;group1servedasacontrolwithouttreatment;group2receivedprogesterone(CIDRfor10daysplusi.m.injectionof2mlEstrumate(PGF2α);group3receivedLugol᾽siodinesolutionandmassage;group4treatedwithoneinjectionofGnRH.Thesuboestruscows(experiment2,n=16)weredividedintotwoequalgroups.Group1servedasacontrolwithouttreatment(n=8);group2(PGF2αgroup,n=8)weretreatedbyoneinjectionof2mlEstrumate(syntheticPGF2α).Fertilitymeasuresincludingtheincidence,themeanintervalbetweenendsofthetreatmenttoonsetofestrus,thenumberofserviceperconceptionandpregnancyrateswererecorded.Resultsshowedthat,thehighestincidenceofestrus(87.5%)andpregnancyrates(85.7%)wereachievedwithtreatmentofCIDRfollowedbyLugol᾽ssolutionplusmassageandGnRHtreatmentregimewhere,theincidenceoftheestrusandpregnancyrateswere(62.5,50.0;50.0,40.0%,respectively).Oneoftheeightcontrolanimalsintreatmentcameintoheat(12.5%)atanaverageposttreatmentintervalof480.0±22.4hoursandnoanimalwaspregnant.TheincidencesofestrusandpregnancyratesofsuboestruscowsafterPGF2αtreatmentwere87.5%and71.42%,respectively.While,incontrolgroup(experiment2)noanimalcameinheatorpregnancy.Inconclusion,CIDRfor10daysplusi.m.injectionof2mlPGF2α(Estrumate)wasthemosteffectivetreatmentofsmoothinactiveovary.OtherregimenssuchasLugol᾽ssolutionanduterineaswellasovarianmassagecouldbeconsidered.Moreover,PGF2αadministrationappearedtobeefficientintreatmentofsuboestruscows.

【 授权许可】

Unknown