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H i chemical symbol hydrogen
ii haemagglutinating antigen
 
H antigen bacterial flagellar antigen
 
H2 histamine
 
h2 heritability
 
H+ hydrogen ion
 
H&E haematoxylin & eosin (stain)
 
H4folate tetrahydrofolate
 
HA i haemagglutination
ii haemaglutinin
iii Health Authority
iv hyaluronate-carboxymethylcellulose
v hypertensive angiopathy
 
Ha chemical symbol harnium
 
HABA 2-(4´-hydroxyazobenzene) benzoic acid
 
HABAC Human-Animal Bond Association of Canada
 
HAC hyperadrenocorticism
 
HACCP hazard analysis & critical control point
 
HAI haemagglutination inhibition
 
HAN i Hanoverian (breed of horse)
ii Heidelberg Appeal Nederland Foundation
 
HANx Hanoverian cross breed (horse)
 
HAP hydroxyapatite
 
HAS Hygiene Assessment System
 
HASS Human, Animal & Social Sciences (Dept) (CABI)
 
HAU haemagglutinin units
 
HAV hepatitis A virus
 
Hb haemoglobin (also Hgb)
 
HBC “hit by car” (medical records)
 
HbCo carbon monoxide haemoglobin
 
HBIG hepatitis B immunogloblin
 
HBLB Horserace Betting Levy Board (UK)
 
HBLV human B-lymphotropic virus
 
Hbo2 oxyhaemoglobin
 
HBSS Hanks’ balanced salt solution
 
HBVS Hertfordshire and Bedfordshire Veterinary Society (BVA)
 
HC i haemorrhagic colitis
ii hereditary cataract
iii hog cholera
iv hypomyelinogenesis congenita
 
(hc) honoris causa (ie honorary)
 
HCB hexachlorbenzene
 
25-HCC 25-hydroxycholecalciferol
 
HCDD hexachloro-bibenzo-p-dioxin
 
HCG,hCG human chorionic gonadotrophin
 
HCH i halogenated cyclic hydrocarbons
ii hexachlorocyclohexane (gamma isomer is lindane)
 
HCL hereditary cataract, late onset
 
HCl hydrochloric acid
 
HCM hypertrophic cardiomyopathy
 
HCN hydrocyanic acid
 
HCO3 bicarbonate ion
 
HCT haematocrit value
 
HCV hereditary cataract, variable age onset
 
HD i hepatosis dietetica
ii hip dysplasia
 
HDA i Hawksbury Diploma in Agriculture
ii hen day average
 
HDD Hearing Dogs for the Deaf
 
HDDS high dose dexamethasone suppression
 
HDF Danish Equine Veterinary Association
Hestepraktiserende Dyrlaegers Forening
 
HDL high-density lipoprotein
 
HDP hydroxymethylene diphosphonate
 
HE hepatic encephalopathy
 
He chemical symbol helium
 
HEDRA Heads of European Veterinary Regulatory Agencies
 
HEFCE Higher Education Funding Council for England
 
HEFCW Higher Education Funding Council for Wales
 
HEIs Higher Education Institutions
 
HEP i haemangiopericytoma
ii high egg passage (re virus attenuation)
 
HES hypereosinophilic syndrome
 
HESCA Health Sciences Communications Association
 
HETE hydroxyeicosatetraenoic acid
 
HEV haemagglutinating encephalomyelitis virus of pigs
 
HEVRA Heads of European Veterinary Regulatory Agencies group
 
HF i Hazeman factor, clotting factor xii
ii high fibre (diet)
 
Hf chemical symbol hafnium
 
HFMD hand, foot-and –mouth disease
 
HFOC hair filled otic canals
 
H4 folate tetrahydrofolate
 
HFRS haemorrhagic fever with renal syndrome
 
HFS-GBI Holstein Friesian Society of Great Britain & Ireland
 
Hg chemical symbol mercury
 
HGB/Hgb haemoglobin (also Hb)
 
HGCA Home Grown Cereals Association
 
HGE i haemorrhagic gastroenteritis
ii human granulocytic ehrlichiosis
 
HGH human growth hormone
 
hh hands high
 
HHA hen housed average
 
HI haemagglutination inhibition
 
HIF high insoluble fibre (diet)
 
HIM haematopoietic inductive environment
 
HIO Horse Industry Organisation (USA)
 
HIN1 classical swine influenza virus
 
HIV human immunodeficiency virus
 
HIV-like viruses included are FIV (feline),BIV (bovine) and EIAV (equine infectious anaemia virus)
 
HIVSS Highlands & Islands Veterinary Services Scheme (UK)
 
HJ bodies Howell-Jolly bodies
 
HL hindlimb
 
hl hectolitre
 
HLA human leucocyte antigen
 
HLCA Hill Livestock Compensatory Allowance
 
HM hazardous material
 
Hm holding medium
 
HME i heat-moisture exchanger
ii humeral medial epicondyle
 
HMM heavy meromycin
 
HMPAO hexamethylpropyleneamine oxime
 
HMSO Her Majesty’s Stationary Office
 
HMWK high-molecular-weight kininagen
 
HN2 Mechlorethamine (Mustargen, Mustine)
 
HND Higher National Diploma (re VN)
 
HnRNA heterogeneous RNA
 
HO i Home Office
ii hypertrophic osteopathy
 
Ho chemical symbol holmium
 
HOA hypertrophic osteopathy
 
HonAssocRCVS Honorary Associate of the RCVS
 
Hon FRCVS Honorary Fellow of the RCVS
 
Hon FWCF Honorary Fellowship of the Worshipful Company of Farriers
 
Hp haptoglobin
 
HPA Horse Protection Act (USA)
 
HPAI highly pathogenic avian influenza
 
HPETE hydroperoxyeicosatetraenoic acid
 
HPF high power field
 
HPG human pituitary gonodotrophin
 
HPL human placental lactogen
 
HPLC high performance liquid chromatography
 
HPLV high pressure, low volume
 
HPO i high pressure (hyperbaric) oxygenation
ii hypertrophic pulmonary osteodystrophy
 
HPOA hypertrophic pulmonary osteoarthropathy (Maries disease)
 
HPP hyperkalaemic periodic paralysis
 
HPR host parasite reaction
 
HPRS Houghton Poultry Research Station (closed)
 
HPS hantavirus pulmonary syndrome
 
HPTG Homeopathic Physicians Teaching group
 
HPV human papilloma virus
 
HR i heart rate
ii high resolution
 
hr hour
 
HRF homologous restriction factor
 
HRP horseradish peroxidase (also HRPO)
 
HRPO horseradish peroxidase (also HRP)
 
HRT hormone replacement therapy
 
HRV heart rate variability
 
HS haemorrhagic septicaemia
 
HSA i Health & Safety Authority (Ireland)
ii Humane Slaughter Association
iii human serum albumin
iv Hunt Saboteurs Association
 
HSAVA Hungarian Small Animal Veterinary Association (also KAEKSZ)
 
HSC Health & Safety Commission
 
HSE Health & Safety Executive
 
HSF high soluble & insoluble fibre (diet)
 
HSL Health & Safety Laboratory
 
HSO i Health & Safety Officer
ii Higher Scientific Officer
 
HSUS Humane Society of the United States
 
HSV herpes simplex virus
 
ht height
 
5-HT 5-hydroxytryptamine (serotonin)
 
HTAT holding time at temperature
 
HTLV-BLV human T-cell lymphotropic virus/bovine leukaemia virus group of retroviruses that cause bovine leukaemia
 
HTM Haemophilus test medium
 
HTML hypertext markup language
 
HTN Hantaan virus (hantavirus)
 
HUC histiocytic ulcerative colitis
 
HUS haemolytic uraemic syndrome
 
HVA i Hellenic Veterinary Association
ii Hungarian Veterinary Association
 
HVF Norwegian Horse Practitioner Veterinary Association
Hestepraktisereude Veterinaerers Forening
 
HVK Croatian Veterinary Association
Hrvatska Veterinarska Komora
 
HVL half-value layer
 
HVMS Hellenic Veterinary Medical Society
 
HVMS/SAVB Hellenic Veterinary Medical Society/Small Animal Veterinary Branch
 
HVR hypervariable region
 
HVT herpes virus of turkeys
 
HWC high white blood cells count
 
HWDA Hungarian Wildlife Disease Association
 
HWP health & welfare programme
 
Hx history (medical records)
 
Hyp hydroxyproline
 
HYPAR hysterectomy produced artificially reared pigs
 
Hz hertz (cycles per second)

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