council decis juli adopt common research programm programm coordin research field anim leucos livestock effluent beef product plant protein product eec council european commun regard treati establish european econom commun articl thereof regard propos commiss regard opinion european parliament council regul eec june coordin agricultur research coordin commun level nation agricultur research activ order attain aim common agricultur polici articl regul council decid specif measur coordin research activ design ration organ mean emploi effici result orient work aim common agricultur polici decid implement joint project design supplement work undertaken member state field import commun progress research epizoot make direct contribut improv farm product elimin major obstacl harmon legisl trade anim anim product insid commun member countri lack differenti diagnosi knowledg resist process case avian leucosi marek diseas repres danger poultri farm lack reliabl method diagnosi bovin leucosi constitut impedi free movement live cattl trend special intensif anim product rise larg intens livestock unit pasturag dump wast unit present problem pollut environ frequent enterpris centr popul livestock effluent valuabl manur purpos farmer gener miner fertil expens long term avail guarante intens usag miner fertil present pollut risk incom larg proport farm commun depend result beef product independ structur problem profit intens beef product inadequ increas product obtain increas price progress breed method meat qualiti meat yield anim progress research slower harder appli directli field beef product commun confront deficit suppli protein anim feed time cost protein product increas import cost price anim product appear essenti increas protein product commun import contribut made improv protein yield unit crop grown commun time introduct speci varieti rich protein studi time research protein anim feed financi contribut commun decid council decid articl common research programm programm coordin research oj oj field anim leucos livestock effluent common research programm field beef product plant protein product contain annex adopt programm begin articl detail rule applic decis relat scientif prioriti common programm criteria select research centr institut invit particip specif measur orient programm carri adopt accord procedur laid articl regul eec articl commiss assur implement coordin programm field anim leucos livestock effluent organ seminar confer studi visit exchang research scientif workshop collat analysi public result articl programm complet juli commiss report european parliament council result research undertaken programm govern decis sum alloc accord articl articl commun financi contribut execut programm mention articl gt pic file quot quot gt brussel juli council presid marcora annex scientif content programm anim leucos avian leucosi marek diseas programm coordin research differenti diagnosi marek diseas avian leucosi establish common criteria differenti diagnosi diseas mean regular contact research worker member state guidanc commiss common research programm mechan resist marek diseas view increas effect vaccin develop method control diseas type resist vaccin resist studi vaccin failur genet resist research inherit resist vaccin studi genet resist sensit marek diseas stimul resist research viral structur antigen antigen viru marek diseas virus herp mechan resist antibodi rôle antibodi genet resist rôle humor antibodi vaccin immun antibodi immun transmit cell immun transmit cell rôle macrophag rôle mechan specif transmitt vaccin genet resist interferon resist quot target quot cell quot mutat quot influenc malign transform lymphoid cell quot mutat quot properti natur hormon effect stress bovin leucosi programm coordin research improv diagnosi bovin leucosi order arriv control measur mean find simpl safe standard test earli diagnosi facilit epizoolog studi develop specif method earli diagnosi bovin leucosi includ studi immunodiffus immunofluoresc radio immun assai techniqu differenti enzoot form bovin leucosi includ histolog studi tumour electrophoret studi view distinguish cell chronic acut bovin leucosi studi lead standard histolog stain method correl serolog data histopatholog form diseas common programm research virolog etiolog aspect identifi studi infecti agent bovin leucosi laboratori method develop method larg scale product method quantif type viru particl work cell line cultur vitro transmiss techniqu titrat viru studi biochem biophys antigen properti type viru particl rôle etiolog leucosi purif procedur properti revers transcriptas properti rna type particl protein hybrid attempt induc diseas purifi type viru particl genet pathogenesi transmiss bovin leucosi studi quot mask transmiss quot investig determin exist latent period symptom viru present stage aris studi develop leucosi includ role type particl transmiss ova sperm experi increas virul etiolog agent passag cell free cell leucot materi born calv shorten incub period concentr viru host studi role agent attempt facilit passag haematolog tumour phase transmiss accompani treatment irradi immunosuppress drug transmiss bovin leucosi speci ii effluent intens livestock unit programm coordin research establish method analysi effluent intens livestock unit applic commun find solut adapt local situat comparison method analysi elimin odour pathogen germ mean chemic treatment storag contain elimin odour produc cattl shed effluent agricultur purpos common research programm intensifi complement research manur spread product storag semi liquid manur includ elimin pathogen germ reduct nitrogen content biolog oxygen demand bod studi chemic characterist odour ventil storag contain view elimin odour effect physic chemic microbiolog characterist semi liquid manur content fertil element organ matter pollut yield qualiti crop soil characterist flora fauna soil qualiti water relat type soil amount semi liquid manur treatment manur manur season climat crop method spread pollut content effect pollut refer pathogen germ parasit heavi metal copper antibiot antisept deterg establish mathemat model input includ essenti factor characterist manur type soil climat factor crop view obtain data ecolog econom consequ local decis iii beef product common research programm improv effici beef product meat qualiti carcass yield obtain greater number viabl calv control reproduct reduc calv interv oestru synchron sex determin superovul egg transplant practic aspect method relat livestock improv increas beef product reduct calf mortal perinat intestin infect metabol respiratori diseas birth earli breed bred heifer intend slaughter promot earlier gestat induc calv affect viabil calv qualiti carcass meat tackl problem nutrit endocrinolog control growth oestru parturit lactat viewpoint effect applic result research field improv meat qualiti increas weight carcass understand genet physiolog nutrit factor influenc bodi develop bull increas slaughter weight studi cattl behaviour improv nutrit effici beef product studi nutrit physiolog factor influenc growth physic develop cattl view practic applic research result standard criteria slaughter carcass assess improv studi carcass meat qualiti relat result nutrit genet experi improv util carcass technolog mean research influenc quarter pack cut meat qualiti achiev understand coordin programm compar studi select criteria suitabl major european breed cross breed friesian fertil earli sexual matur eas calv genet resist perinat ill matern abil growth nutrit yield characterist carcass meat qualiti mean studi blood group genet marker purpos select product good qualiti meat research consider econom import beef product take account biolog econom approach view improv balanc milk beef commun iv plant protein common research programm qualit quantit improv plant protein method techniqu analys assess protein autom analys effect polyphenol energi balanc digest nitrogen relationship vivo digest protein hand physic solubl solubil enzym improv crop high protein content research field genet select fodder grass legum rôle nitrogen fix bacteria method improv purpl clover lucern effect fertil possibl select fodder grass protein content product high protein fodder grass seed legum rôle nitrogen fix bacteria studi protein speci pea improv methodolog select protein content adapt crop european condit studi european high protein speci cereal improv protein synthesi cereal pathwai control genet variabl consequ possibl method genet improv autogam cereal common wheat barlei select larg collect cross mutat studi select siev genet maiz method flouri opaqu gene modifi gene studi relationship high protein content qualiti protein involv seed yield