LiWle Blue Penguin - Wildlife Disease Association
Transcription
LiWle Blue Penguin - Wildlife Disease Association
Picture ofbird Li0leBluePenguin(Eudyptulaminor) Fulllifehistoryinfo:h@p://nzbirdsonline.org.nz/species/li@le-penguin Ecologyandlifehistory Introduc>on TheLi@leBluePenguin(alsoknownasli@lepenguin, Normaladultweightrange:Male925-1650g Female765-1250g blue penguin, fairy penguin, or kororā) is the smallest ofallthepenguinspeciesintheworld.Theyarefound Moult:Synchronousmoulti.e.moultsallfeathersatthe onthemainislandsandcoastalislandsofNewZealand same,me.InJanuary-Marchfora2weekdura,on. and along the southern Australian coastline. Recent DuringthisperiodLBPsstayintheburrowanddonotgo gene,c analysis strongly suggests that the NZ and swimmingtoforageforfood.Theycanlooseupto50%of bodyweightduringthisperiod. Australianli@lepenguinsaretwoseparatespecies. Althoughtheyarethemostcommonpenguinsintheir Breeding:JulytoFebruary. Monogamous. range, the popula,on is declining due to several EgglayingbetweenJultoNov. threatening processes including introduced predators Incuba,on30-39days. (dogs and cats, ferrets in NZ and foxes in Australia), Ageatfledging54-56days. human disturbance or destruc,on of nes,ng habitat Ageatfirstbreeding2-3years. anddecreasedfoodsuppliesthroughoverfishing. Lifespan:upto25years. LBPsarearobustandresilientspeciesthatcopeswell in the rehabilita,on environment, making them the Diet:Piscivorous ideal candidate for wash, rehabilita,on and release Conserva>onstatus(NZThreatClassifica>on):Declining duringanoilspill. Personal protec>ve equipment (PPE): Appropriate PPE must be worn when capturing and handling oiled wildlifetopreventexposuretooil(disposablenitrilegloves,safetyglasses/goggles,protec,onforclothinge.g.Tyvec suit).Oldtowelsorblueincon,nencepadsareusefultohandleoiledbirdsastheycanbediscardedoncesoiled. Capture Handling Consider the safety of both humans and birds. LBPs can be caught in a net or by hand with or without a towel. Long-handled fishing nets are useful for capture if the birdisinthewater.Ifthebirdisonland then ensure that someone is standing between the bird and the water to preventthemfromenteringit. Transportto facility Wear normal examina,on gloves if not oiled to prevent feather damage. Wrap the body in a toweltorestraintheflippersandpreventfeather damage. Cover the head with the towel to reducestress. Penguin bills are sharp and easily cut through skin.Restraintheheadbyholdingthebackofthe head in the palm of one hand and gripping the bo@omofthejawswiththumbandfingers. WARNING–NEVERplaceyoureyesclosetoholesintransportboxes. Herons,gannets&shagswilllungeateyescausingseriousinjuryorblindness. Transportbox:madeofplas,c,NOTwoodorcardboard,asoilcontamina,oncanbecleaned andboxreused.Bestop,onisaCorflutebox(pictured). AvailablefromA&EKarstenLTD(ph+6492662781,sales@karsten.co.nz) Size:Large=240(W)x420(L)x315(H)mm.Alterna,veop,onisaplas,cPetPak. OnlyONEbirdperbox. Flooring:Correctflooringinthetransportboxisimportant.Itshould(i)besoeandnon-abrasiveinordertoprevent developmentofbumblefootduringtransport,(ii)benon-slipsothatthebirdcansteadyitselfand(iii)preventbuild upoffaecalma@erthatcancauseurateburns. Blue-tuberubbermafngcoveredwithblueincon,nencepadsora suspended nefng floor are the best op,ons. Folded newspaper is inappropriate as it becomes too slippery when contaminated by faeces. Shredded paper, straw, hay and seagrass should be avoided as it increases the risk of Aspergillosis Vehicletransport:vanorute,withcanopyandaseparateairspacefrompeopletopreventinhala,onofoilfumes. Ideallytemperaturecontrolled(hea,ngoncolddays,coolingonhotdays). Li0leBluePenguin HUSBANDRYREQUIREMENTS Housing pre-cleaning (oiled) Keepindoorsandtemperaturecontrolledat25-27°Cbecauseoiledanimalscannotthermoregulate. Enclosure Plas,c,ventedbulkbinsorboxpalletsareidealforeasycleaning (availablefromwww.plas,c.co.nzandotherplas,cpackagingcompanies) Cankeepmul,plebirdsinonecrate,butdonotovercrowd. Stainlesssteelorplas,chospitalcagescanbeusedasanalterna,ve, butkeeponlyonebirdpercage. Flooring Bestop,onisfine(0.5cm)non-kno@edco@onnefngusingPVCpipeasaframeandsuspendedat least15cmfromthecagefloor. Alterna,veisbluetubing(availableathardwarestores). Theseflooringtypespreventuricacidandfaecalbuildupwhichcancausefeatherdamageand bumblefoot. Ifusingsteelorplas,chospitalcagesthenmul,plelayersoftowelscanbeusedontopofblue mafng,butsoiledtowelsmustbechangedregularly. Covering Meshorshadeclothontopofbulkbins/boxpalletsandsecuredwithclipsorweights. Coverthefrontofhospitalcageswithatoweltoreducestress. Enclosure Housing post-cleaning Outdooraviarywithshadeclothcoveringtheroofandwalls. Canhousemul,plebirdstogether. (NOToiled) Flooring: Bluetubemafngonfloortopreventuricacidandfaecal buildupandbumblefoot. NOTE:greytubeflooringisharderthantheblueversion whichincreasesriskofbumblefoot. Burrows Hidesmadeofplas,c-upturnedplas,cboxwithsemi-circlecutout.Protectthesharpedgeof doorwaywithahose-pipesplitlengthwaysandtapedinplace.Provideonehideperbird. Pool Penguinsintherehabilita,onphaseneedaccesstowaterintheirenclosuretoaidwaterproofing. • Suitablepooltypes:built-in,largeplas,ccontainersorchildren’sswimmingpoolorshell. • Non-sliprampstoalloweasyaccessandexitofwater. • MinimumwaterdepthforLBPsis30cm. • Preferablyuseseawater,butfreshwatercanbeused.Ifusingfreshwaterthenprovidebirdswith asaltsupplementinordertomaintainsaltglands(see“Supplements”sec,on). • Heatwaterduringwintermonthsifambientairtemperatureisbelow~10-15°C. • Con,nuousflowofwaterisrequiredtopreventbuildupoffishoilandfaecesonthesurfaceof the water which inhibits the waterproofing process. This is most easily achieved by placing a hose above the pool allowing the running water to break the surface of the pool water and lefngitoverflow.Gooddrainagearoundthepoolisrequired. • Surfaceskimmerisusefulforremovingoil,foodandfaecesfloa,ngonthesurface. Asperhandlinginstruc,ons. Transport withinfacility Ifoiled,thenwearappropriatePPEandencaseindisposablematerialsuchblueincon,nencepads. Ifclean,thenencasedinlargetowel.Wearglovestopreventfeatherdamage. Coverheadtoreducevisuals,muliandstress. Iden,fica,on Legbandorflipperband(temporaryiden,fica,ontoberemovedbeforerelease) Li0leBluePenguin NUTRITION,SUPPLEMENTSandFLUIDS Atadmission Triageassessment:physicalexamina,onbytrainedpersonnel(preferablyaveterinarian) Recordcloacaltemperature.Givefluidsatini#alstabilisa#onratesbelow. Dosing Iflargenumbersofbirdsrequiredosingthencalculatedosebasedontheweightoftheheaviestbird. Groupanimalsintosimilarageand/orsizeclassfordosingcalcula,ons. Fluidrate Ini,alstabilisa,on:75-80ml/kgbodyweight/daydividedintotwodosesPO Oncehydrated:50-60ml/kgbodyweight/daydividedintotwodosesPO Fluidtype Forlongtermmaintenanceuseeitherisotonicsaline(0.9%)orVytrate®/Lectade® Amount Feed10%ofbodyweight(BW)TWICEaday.(i.e.20%ofbodyweighttotaleachday). Foodtype Ifweak,emaciated,severelydehydratedorunabletoholdheadup: Onlygiveoralelectrolytefluidsatini#alstabilisa#onratefor24hourstorehydrategut. Useeither:Equalparts(50:50)Hartmann’ssolu,onand2.5%dextrosein0.45%saline 5%dextrosein0.9%saline orVytrate®/Lectade® Oncegutishydrated,thenstartwithsmallamountsoffishslurryandchangetoisotonicfluids. Ifabletotakesolids:humangradesmallwholesalmon. Fishslurry:Placehumangradesalmoninheavydutyblenderandblend.Addjustenoughisotonic Food prepara,on (0.9%NaCl)fluidtoblendertoachieveasmoothconsistency.Sieveslurryusingametalsieveto removeanychunksthatmayclogthefeedingtube. Discardaeer24intherefrigerator. Wholefish:Ideallydefrostcoveredinrefrigeratortoretain nutri,onalquality.However,iflargeamountsoffoodarerequired thenfishcanbedefrostedundercoldrunningwaterimmediatelybeforefeedingsolongasvitamin supplementsaregiven.Tocutlargewholesalmonintopieces,cutonanangleaspictured. Supplements ① Mazuriseabirdvitamins:1tabletper225gfish.(AvailableatCarlyleVetClinic,Napier068351096). ② Itraconazole(Sporonox):5mg/kgBWPOoncedailyviasoecroptubetopreventAspergillosis. ③ Salt (sodium chloride) to recondi,on salt gland: Only required if birds have been housed longterminfreshwater. Startatleast2weekbeforerelease.Giveorallyeitheras3%salinesolu,onat maintenancefluidratesor100mg/kgBWPOoncedaily.Graduallyincreasedoseoverfourdays:Day 1give¼dose,Day2give½dose,Daygive¾dose,Day4givefulldose,thencon,nueatfulldose. Delivery& device Warmfluidsandslurryto38-40°C.Deliverfluidandfishslurrywithsoecroptube,preferablysilicone. Forcefeed(FF)wholeorpiecesoffishheadfirst.Somebirdswilllearntotakefishbyhand,otherswill needtheheadrestrainedandbillopenedtoplacefishintothebackofthemouth.Oncethefishisfar enoughtothebackofthethroatthebirdshouldswallowitdown–releasetheheadatthisstageto allowtheanimaltoswallow. Avoidgefngfishjuicesontheskinandfeathersatthecornerofthe mouthasthisdisruptswaterproofingandcausesderma,,s.Iffishjuice/oilgetsontoskinorfeathers DONOTATTEMPTTOWIPEOFF.Rinseareawithalargesyringeofwaterandallowbirdtopreen. HEALTHSCREENING Venepuncturesites:Interdigital,brachial,andmedialmetatarsalveins Anaemia Kidneyfunc>on Birds exposed to oil can quickly become anaemic Uric acid (UA) levels in birds are a measure of kidney (decreasedredbloodcells)duetothetoxicaffectsofoil func,on.ElevatedUAlevels>600IU/dlindicatethatthe andstarva,on.Asaminimum,packedcellvolume(PCV) kidneysarefailingortheanimalisseverelydehydrated, and serum total protein (TP) should be measured at bothofwhichcommonlyoccurinoiledbirds. (1) intake (2) pre-wash (3) post-wash (4) pre-release. Treatment:IVorPOisotonicfluidsattwicemaintenance Severely anaemic (PCV<15-20%) birds require blood rates(100ml/kg/24hours) transfusion. Birdsshouldnotbereleasedun,ltheirUAlevelsreturn BirdsshouldNOTbe: to within the normal range (<600 IU/dl). If UA levels • washedun,lPCV≥30%andTP≥25g/L remain elevated despite treatment then the bird likely • released un,l their PCV and TP levels return to within hasirreversiblekidneyfailureandshouldbeeuthanised thenormalrangeforLBPs=PCV30-55%,TP40-60g/L onhumanegrounds. Li0leBluePenguin CommonMedica>ons Washing Birds must be stable and strong enough to withstand An>-fungals: Preventa,ve treatment of Aspergillosis the stress of washing. This may mean that a bird will (a severe respiratory fungal infec,on) is highly recommended as these birds are extremely suscep,ble to this life-threatening disease when in cap,vity. Itraconazole available only by veterinary prescrip,on. Seedoserateonpage1. An>bio>cs:areonlyrequirediftheanimalhasanopen or infected wound or known bacterial infec,on and shouldonlybegivenifprescribedbyaveterinarianaeer examina,onoftheanimal. Doserates:Amoxicillin/clavulanicacid125mg/kgPOBID Enrofloxacin5-10mg/kgPOBID Pain relief: is only required if the animal has a painful condi,on(e.g.openwound)andshouldonlybegivenif prescribed by a veterinarian aeer examina,on of the animal.Doserates: Meloxicam(formildtomoderatesoe,ssuepain) 0.5-1mg/kgBID Butorphanol(formoderatetoseverebonepain) 5mg/kgIMideallyevery2-3hoursbutcanbegiven twiceaday remainoiledforseveraldaysun,lithasbeenstabilised. Requirements for washing are very specific, such as water temperature, water soeness and brand of detergent.Refertothe“Washing”factsheetfordetailed informa,on. Waterproofing Toregainwaterproofing,birdsmustbegivenaccesstoa pool with haulouts so that they can preen and dry off between swims. Degree of waterproofing should be assessedusingtheWaterproofingAssessmentsheets. Li@le Blue Penguins can take up to 10 days to become fullywaterproof. Tobefitforreleasethebirdmustbe 100% waterproof aeer 6 hours of forced swimming (no accesstohaulouts). Releasecriteria BirdsshouldonlybereleasediftheyfulfillALLthe followingcriteria: 1. Fullywaterproofaeer6hoursswimtest(referto “Waterproofing”guidelines). Ac>vatedcharcoal:notrecommended 2. Weightwithinnormalrange(onpage1) ANDBodyCondi,onScoreatleast3/5 Problemsassociatedwithcap>vity ALLsecondarycomplica,onsrequireveterinarya@en,on. Isolateanysickbirdsfromthegroup. 1. Aspergillosis A serious, life-threatening respiratory fungal infec,on. Clinical signs include noisy or difficulty breathing. Treatment involves daily nebulisa,on with a specific an,fungalagentonlyavailablethroughaveterinarian. 2. Pressuresores:keellesions,hocklesionsor pododerma>>s(bumblefoot) Best prevented with good husbandry and appropriate floor coverings. Depending on severity the bird may requiresurgery.Treatmentinvolvesspecificwoundcare andbandaging. 3. Trauma>cinjuries Trauma,c injuries such as bone fractures can occur in cap,vityduetoexcessiveforceusedduringhandlingor issues in the enclosure (eg. gaps where legs or flippers cangetstuck). 4. Featherdamage Usuallyoccursfrominappropriatehandlingorenclosure. Birds cannot be released if feather damage effects waterproofing. If it is the wrong ,me of year for a naturalmoult,pleaseseekadvicefromWildbaseonhow toinducemoult. 3. PCVis35-55%andTPis30-55g/L 4. UA<600IU/dl 5. Secondarycomplica,onsresolvedandcheckedby veterinarian Otherthingstoconsider: • Istheirreleasehabitatfreefromoil? • LBPscanbereleasedonlandneartheshoreline. Authors:S.Finlayson,B.White,L.Chilvers,G.Finlayson. Thanks to veterinary technicians and veterinary residents in the Wildbase Hospitalandtoothersfortheirinput,feedbackandphotos. Disclaimer: This fact sheet is managed by Wildbase Oil Response (WOR) for informa,onpurposesonly.Informa,oncontainedinitisdrawnfromavariety of sources external to WOR. Although reasonable care was taken in its prepara,on, WOR does not guarantee or warrant the accuracy, reliability, completeness, or currency of the informa,on or its usefulness in achieving anypurpose.Tothefullestextentpermi@edbylaw,WORwillnotbeliablefor any loss, damage, cost or expense incurred in or arising by reason of any person relying on informa,on in this fact sheet. Persons should accordingly makeandrelyontheirownassessmentsandenquiriestoverifytheaccuracy oftheinforma,onprovided. Pictures:Unlessotherwisecredited,allpicturesarecopyrightofWildbase.