Albert Einstein College of Medicine Institute for Animal Studies Recommended Methods of Anesthesia, Analgesia, and Euthanasia for Laboratory Animal Species Note: The following list has been compiled from a variety of sources and includes dosages which have been reported to be effective for each species. Doses may vary with species, strain, and other variables. In general, the lower end of a dose range should be attempted before moving to the higher end of the range. This list does not cover all species and certainly does not cover all effective agents or methods. Please consult one of the references listed at the end of this document or one of the Institute for Animal Studies veterinarians if this list does not meet your needs. ANEST-ED.DOC 1/12/99 MICE Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (4) Abbreviations: Drug(s) or Method Dose (mg/kg) Route atropine acetylpromazine " diazepam ketamine (+/- acetylpromazine) " pentobarbital (6-10 mg/ml; to effect) ketamine / xylazine ketamine-xylazine mix (1) ketamine / acetylpromazine ketamine / xylazine / acetylpromazine ketamine-xylazine-acetylpromazine mix (2) tribromoethanol, 1.2 - 2.5% (3) " 1.25% (3) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 2-8 hr) buprenorphine (q 6-12 hr) Meperidine carbon dioxide (to effect) pentobarbital inhalant anesthetic OD (to effect) cervical dislocation decapitation (under anesthesia) exsanguination (under anesthesia) 0.02-0.05 0.75 2-5 5 44 100 25-90 200/10 0.1 ml/20g BW 22-100 / 0.75-2.5 30-100 / 2.5-6 / 1-2.5 0.1 ml/20g BW 125-300 0.2 ml/10g BW 0.5-4% 0.5-3% 1-4% 0.001-5.5 0.03-2.5 3-12 100% > 120 SC,IM,IV,IP IM IP IP IM*,IP IP IP,IV IM*/IP IM*, IP IM* SC,IM* SC,IM* IP IP inhalant inhalant inhalant IM, SC SC,IM,IP IP, SC inhalant IV,IP inhalant IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal BW = body weight q = every OD = overdose *IM injection may cause significant inflammation; recommended for terminal procedures (1) ketamine-xylazine mix (combine and DILUTE 1:4 with saline): 10 ml ketamine (@100mg/ml) + 1.5ml xylazine (@100mg/ml) (2) ketamine-xylazine-acetylpromazine mix (combine and DILUTE 1:10 with saline): 1.5ml ketamine (@100mg/ml) + 1.5ml xylazine (@20mg/ml) + 0.5ml acetylpromazine ( @10mg/ml) (3) unstable; can be associated with peritonitis and mortality (4) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia RATS Drug(s) or Method Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (4) Abbreviations: Atropine ketamine (dilute to 10mg/ml) Pentobarbital Acetylpromazine Diazepam Xylazine ketamine (dilute to 10mg/ml) ketamine / Xylazine ketamine-xylazine mix (1) ketamine / xylazine / acetylpromazine ketamine-xylazine-acetylpromazine mix (2) ketamine / diazepam pentobarbital (dilute to 6mg/ml) halothane (to effect) methoxyflurane (to effect) (3) isoflurane (to effect) chilling (neonatal: 1-3 days of age) Butorphanol buprenorphine (q 8-12 hr) meperidine (q 2-3 hr) " carbon dioxide (to effect) Pentobarbital inhalant anesthetic OD (to effect) cervical dislocation (< 200g) decapitation (under anesthesia) exsanguination (under anesthesia) Dose (mg/kg) Route 0.02-0.05 20-44 up to 20 5 2.5 13 40-160 80-100 / 10-20 0.1 ml/100g BW 30 / 6 / 1 0.5-0.7 ml/kg BW 20-80 / 5-10 30-60 0.5-3% 0.5-4% 1-5% SC,IM,IV IP, IM* IP IM, SC IP IM IM*, IP, IV IP,IM* IP,IM* SC,IM* SC,IM* IP IP, IV inhalant inhalant inhalant topical IM, SC SC SC,IM IV,IP,IM inhalant IV,IP inhalant 0.04-23.3 0.1-2 10-20 3-5 100% >120 IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal BW = body weight q = every *IM injection may cause significant inflammation; recommended for terminal procedures (1) ketamine-xylazine mix: 10 ml ketamine (@100mg/ml) + 1.5ml xylazine (@100mg/ml) (2) ketamine-xylazine-acetylpromazine mix: 1.5ml ketamine (@100mg/ml) + 1.5ml xylazine (@20mg/ml) + 0.5ml acetylpromazine (@10mg/ml) (3) may be contraindicated in F344 rats (4) scientific justification needed; must be considered and approved by Animal Ins titute Committee; may be acceptable if used in combination with other methods and/or under anesthesia HAMSTERS Drug(s) or Method Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (2) Abbreviations: atropine ketamine (dilute to 10mg/ml) acetylpromazine diazepam " pentobarbital (dilute to 6-10 mg/ml) ketamine ketamine / xylazine ketamine / acetylpromazine ketamine / xylazine / acetylpromazine ketamine-xylazine-acetylpromazine mix (1) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 4-12 hr) buprenorphine (q 8-12 hr) meperidine pentobarbital carbon dioxide (to effect) inhalant anesthetic OD (to effect) decapitation (under anesthesia) exsanguination (under anesthesia) Dose (mg/kg) Route 0.02-0.05 40-100 0.5 0.5 5.0 35-90 40-200 80-200 / 7-10 150 / 5 30 / 6 / 1 0.05 ml/100g BW 0.5-4% 0.5-4% 1-3% 0.125-2 0.005-2 2 > 120 100% IM IM*,IP IM IM IP IP IP IP, IM* IM* SC,IM* SC,IM* inhalant inhalant inhalant IM, SC SC IM, SC IV,IP inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal BW = body weight q = every OD = overdose *IM injection may cause significant inflammation; recommended for terminal procedures (1) ketamine-xylazine-acetylpromazine: 1.5ml ketamine (@100mg/ml) + 1.5ml xylazine (@20mg/ml) + 0.5ml acetylpromazine (@10mg/ml) (2) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia GERBILS Drug(s) or Method Anticholinergic Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: atropine ketamine / xylazine pentobarbital (dilute to 6-10 mg/ml) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 6-8 hr) buprenorphine (q 6-8 hr) carbon dioxide (to effect) pentobarbital inhalant anesthetic OD (to effect) cervical dislocation (< 200g) exsanguination (under anesthesia) decapitation (under anesthesia) Dose (mg/kg) Route 0.04 50 / 2 35-100 0.5-4% 0.5-1% 1-4% 25-50 0.1-0.2 100% > 120 IM,SC IM* IP inhalant inhalant inhalant IM,SC SC inhalant IV,IP inhalant IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal q = every OD = overdose *IM injection may cause significant inflammation; recommended for terminal procedures (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia GUINEA PIGS Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (2) Abbreviations: Drug(s) or Method atropine ketamine pentobarbital ketamine ketamine / acetylpromazine ketamine / diazepam ketamine / xylazine ketamine-xylazine-acetylpromazine mix (1) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 8-12 hr) butorphanol (q 6-8 hr) buprenorphine (q 6-12 hr) pentobarbital carbon dioxide (to effect) inhalant anesthetic OD (to effect) decapitation (under anesthesia) exsanguination (under anesthesia) Dose (mg/kg) 0.02-0.05 22-100 25-40 35-200 125 / 5 60-100 / 5-8 40-100 / 4-5 0.5-0.7 ml/kg BW 0.5-5% 0.5-4% 2-5% 0.3-0.4 25-50 0.025-0.3 > 120 100% Route SC,IM,IV IM IV,IP IM, IP IM IM IM / IM or SC IM,SC inhalant inhalant inhalant IM,SC IM,SC SC,IM IV,IP inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal BW = body weight q = every OD = overdose *IM injection may cause significant inflammation; recommended for terminal procedures (1) ketamine-xylazine-acetylpromazine: 1.5ml ketamine (@100mg/ml) + 1.5ml xylazine (@20mg/ml) + 0.5ml acetylpromazine (@10mg/ml) (2) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia RABBITS Drug(s) or Method Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (3) Abbreviations: atropine (1) glycopyrrolate acetylpromazine ketamine xylazine diazepam " ketamine / xylazine (2) " / " ketamine / acetylpromazine ketamine / diazepam pentobarbital (to effect) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) phenylbutazone butorphanol (q 6-8 hr) buprenorphine (q 8-12 hr) meperidine (as needed) " (in drinking water) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (neonates; to effect) cervical dislocation (< 1 kg) decapitation (under anesthesia) exsanguination (under anesthesia) Dose (mg/kg) 0.2-2.0 0.1 0.5-10 15-50 3-6 5-10 1-2 35-50 / 5-10 10 / 3 30-75/ 0.75-5 25-35 / 5-10 20-45 0.5-5% 0.25-3% 1-5% 10-100 0.01-4.25 0.005-0.8 5-10 0.2 mg/ml > 100 100% Route SC,IM,IV IM IM,SC IM,SC IV, IM IM IV IM IV IM IM IV inhalant inhalant inhalant IV IM, IV, SC IV, SC IM PO IV inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous PO = orally q = every OD = overdose (1) some rabbits have atropinase which may affect efficacy (2) may be contraindicated in New Zealand Black rabbits (3) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia CATS Drug(s) or Method Anticholinergic Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: atropine acetylpromazine " ketamine tiletamine-zolazepam ketamine ketamine / acetylpromazine " / " ketamine / xylazine pentobarbital (to effect) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 1-12 hr) buprenorphine (q 6-12 hr) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (neonates; to effect) exsanguination (under anesthesia) Dose (mg/kg) 0.02-0.05 0.1-0.25 2 10 9-12 10-30 22-30 / 0.1-0.5 2-4 / 0.1 15-20 / 1 20-40 0.5-4% 1-4% 1-5% 0.1-1 0.005-0.01 > 100 100% Route SC,IM,IV IM,IV,SC PO SC,IM SC,IM IM IM IV IM / IM,SC IV inhalant inhalant inhalant IM,IV,SC SC,IV,IM IV inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous PO = orally q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia DOGS Drug(s) or Method Anticholinergic atropine glycopyrrolate Dose (mg/kg) 0.02-0.05 0.02 Route SC,IM,IV IM,SC Sedative Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: acetylpromazine " diazepam pentobarbital (to effect) thiopental (to effect) thiamylal (to effect) ketamine / xylazine " / " ketamine / diazepam (to effect) halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) phenylbutazone (q 8-12 hr, max 800mg/day) aspirin (q 6-24 hr) butorphanol (q 1-12 hr) buprenorphine (q 4-8 hr) meperidine flunixin meglumine (q 24 hr, max 5 days) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (neonates; to effect) exsanguination (under anesthesia) KCl (under anesthesia, to effect) 0.1-1 (max 3mg) 2 0.2-0.6 15-35 10-30 9-18 5 / 1-2 10 / 2-4 7-11 / 0.4-0.5 0.5-4% 0.25-4% 1.5-4% 10-25 10-40 0.2-2 0.005-0.05 2-4 0.5-1 > 100 100% IM,SC,IV PO IV IV IV IV IV / IV,IM IM IV inhalant inhalant inhalant PO PO IM,IV,SC SC,IV,IM IM,SC IV IV inhalant inhalant IV IM = intramuscular SC = subcutaneous IV = intravenous PO = orally q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia FERRETS Drug(s) or Method Anticholinergic Sedative atropine acetylpromazine diazepam Dose (mg/kg) 0.02-0.05 0.2-0.5 1-2 Route SC,IM,IV IM,SC IM Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: ketamine ketamine / xylazine ketamine / acetylpromazine ketamine / diazepam pentobarbital halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) flunixin meglumine (q 12-24 hr) butorphanol (q 6-12 hr) buprenorphine (q 8-12 hr) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (neonates; to effect) exsanguination (under anesthesia) 25-40 20-30 / 1-4 25-35 / 0.2-0.3 25-35 / 2-3 25-30 0.5-4% 0.25-3% 2-5% 0.5-2 0.025-0.8 0.005-0.1 > 100 100% IM IM,SC IM,SC IM IV inhalant inhalant inhalant SC,IV IM,SC IV,IM,SC IV inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia PRIMATES Anticholinergic Sedative Anesthetic Drug(s) or Method atropine glycopyrrolate ketamine acetylpromazine xylazine (1) diazepam ketamine " (squirrel monkey) ketamine / acetylpromazine ketamine / xylazine Dose (mg/kg) 0.04-0.1 0.005-0.01 5-15 0.05-1 0.5-2.0 1 10-25 25-30 11 / 0.5 7-10 / 0.25-2 Route SC,IM,IV IM IM,IV IM,SC IM IM, IV IM IM IM IM Analgesic Euthanasia Conditionally Acceptable (3) Abbreviations: ketamine / diazepam pentobarbital (2) thiamylal thiopental halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) butorphanol (q 6-8 hr) buprenorphine (q 8-12 hr) flunixin meglumine (q 8-24 hr) acetaminophen (q 6-12 hr) aspirin (q 6-12 hr) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (small or neonatal) exsanguination (under anesthesia) 15 / 1 20-30 15-30 15-20 0.5-4% 0.25-4% 1-5% 0.01-0.5 0.005-1.0 1-3 10-100 12.5-20 > 100 100% IM IV IV IV inhalant inhalant inhalant IM, SC IM, IV,SC IM PO PO IV inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous PO = orally q = every OD = overdose (1) Erythrocebus spp may require higher dose (2) grivets (Cercopithecus aethiops) require lower doses of barbiturates (3) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia SHEEP / GOATS Anticholinergic Sedative Anesthetic Drug(s) or Method atropine acetylpromazine " diazepam " xylazine ketamine " ketamine Dose (mg/kg) 0.02-0.05 0.05-0.2 0.02-0.05 0.5-2 1 0.05-0.3 2 20 10 Route IM IM IV IM IV IM IV IM IV Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: " thiopental thiamylal pentobarbital halothane (to effect) methoxyflurane (to effect) isoflurane (to effect) phenylbutazone (q 24 hr) buprenorphine (q 4-24 hr) butorphanol (q 6-8 hr) flunixin meglumine (q 24 hr) meperidine (q 12-24) pentobarbital inhalant anesthetic OD (to effect) exsanguination (under anesthesia) KCl (under anesthesia, to effect) 20-30 25 10-30 20-30 0.25-3% 0.5-3% 2-5% 1 0.005 0.005-0.0125 1 2-10 > 100 100% IM IV IV IV inhalant inhalant inhalant PO IM IM IV IM IV inhalant IV IM = intramuscular IV = intravenous PO = orally q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia SWINE Drug(s) or Method Anticholinergic Sedative Anesthetic atropine acetylpromazine xylazine ketamine diazepam " pentobarbital (to effect) (1) ketamine ketamine / xylazine halothane (to effect) methoxyflurane (to effect) Dose (mg/kg) 0.04-0.1 0.2-1.0 (max 15mg) 2 10 0.5-10 0.44-2 15-40 10-33 5-20 / 1-2 0.25-3% 0.5-3% Route IM IM IM IM IM IV IV IM IM inhalant inhalant Analgesic Euthanasia Conditionally Acceptable (2) Abbreviations: isoflurane (to effect) phenylbutazone (q 24 hr) " butorphanol (q 3-4 hr) buprenorphine (q 12 hr) meperidine (q 4 hr) pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (neonates; to effect) exsanguination (under anesthesia) 2-5% 4-8 2-5 0.05-2 0.1-2 2-10 > 100 100% inhalant PO IV SC, IV IM IM IV inhalant inhalant IM = intramuscular SC = subcutaneous IV = intravenous PO = orally q = every OD = overdose (1) use lower dose if >45kg BW (2) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia BIRDS Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Abbreviations: Drug(s) or Method isoflurane (to effect) halothane (to effect) methoxyflurane (to effect) buprenorphine (q 12 hr) butorphanol (q 6-8 hr) " pentobarbital inhalant anesthetic OD (to effect) carbon dioxide (to effect) cervical dislocation decapitation (under anesthesia) exsanguination (under anesthesia) IM = intramuscular Dose (mg/kg) 0.25-5% 0.5-3% 1-3% 0.005-0.05 0.1 0.4-0.8 > 100 100% Route inhalant inhalant inhalant SC,IM IV SC IV,IP+E209 inhalant inhalant SC = subcutaneous IV = intravenous IP = intraperitoneal q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia REPTILES Anticholinergic Anesthetic Analgesic Euthanasia Conditionally Acceptable (1) Drug(s) or Method atropine glycopyrrolate ketamine (lizard) thiopental (lizard) pentobarbital (lizard) tiletamine-zolazepam (lizard) isoflurane (induce in jar or with ketamine) halothane (induce in jar or with ketamine) flunixin meglumine (q 24-72 hr) meperidine (q 12-24 hr) buprenorphine (q 24-48 hr) pentobarbital carbon dioxide (to effect) inhalant anesthetic OD (to effect) double pithing decapitation (under anesthesia) Dose (mg/kg) 0.01-0.02 0.01 20-40 11-15 22-30 10-30 1-3% 1-3% 0.5-1 5-10 0.005-0.02 > 100 100% Route SC, IM SC, IM IM IP IM IM inhalant inhalant IM SC, IM IM IV,IP inhalant inhalant exsanguination (under anesthesia) Abbreviations: IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal q = every OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia AMPHIBIANS Drug(s) or Method Sedative Anesthetic Analgesic Euthanasia ketamine tricaine methanesulfonate (larvae, newts)" (frogs, salamanders) " (toads) " (sterile) (frogs) benzocaine (larvae) " (frogs, salamanders) isoflurane halothane buprenorphine (leopard frog) meperidine (leopard frog) pentobarbital carbon dioxide (to effect) inhalant anesthetic OD (to effect) tricaine methanesulfonate OD (to effect) benzocaine OD (to effect) Dose (mg/kg) 50-150 200-500 mg/L 500mg-2 g/L up to 3 g/L 100-400 50 mg/L 200-300 mg/L 4-5% 4-5% 99.1 nM/g 128.1 nM/g > 100 100% Route SC,IM immersion immersion immersion IP immersion immersion inhalant inhalant SC SC IV,IP inhalant inhalant immersion immersion Conditionally double pithing Acceptable (1) decapitation (under anesthesia) Abbreviations: IM = intramuscular SC = subcutaneous IV = intravenous IP = intraperitoneal BW = body weight OD = overdose (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia FISH Sedative Anesthetic Euthanasia Conditionally Acceptable (1) Abbreviations: Drug(s) or Method tricaine methanesulfonate benzocaine (immerse head/gills; maintain by spray or drip on buccal surface) tricaine methanesulfonate (not in salt water) ketamine etomidate metomidate pentobarbital tricaine methanesulfonate OD (to effect) benzocaine OD (to effect) decapitation (under anesthesia) IM = intramuscular IV = intravenous IP = intraperitoneal OD = overdose Dose (mg/kg) 50 mg/L 25-50 mg/L Route immersion immersion 100 mg/L 14-18 2-4 mg/L 2.5-5 mg/L >100 1-3 g/L 100 mg/L immersion IM immersion immersion IV,IP immersion immersion (1) scientific justification needed; must be considered and approved by Animal Institute Committee; may be acceptable if used in combination with other methods and/or under anesthesia Some Common Drug Names acetaminophen acetylpromazine tribromoethanol buprenorphine butorphanol diazepam fentanyl/droperidol flunixin meglumine halothane isoflurane ketamine meperidine methohexital sodium methoxyflurane nalbuphine oxymorphone pentazocine pentobarbital phenylbutazone thiamylal thiopental tiletamine-zolazepam tribromoethanol tricaine methanesulfonate xylazine Tylenol® Acepromazine® Avertin® Buprenex® Torbutrol® Valium® Innovar-Vet® Banamine® Fluothane® Aerrane®, Isoflo® Vetalar®, Ketaset® Demerol® Brevital® Metofane® Nubain® Numorphan® Talwin® Nembutal® Butazoldin® Surital® Pentothal® Telazol® Avertin® MS-222, Finquel® Rompun® References Major References: Kohn, DE, SK Wixson, WJ White, and GJ Benson, Eds. (1997). Anesthesia and Analgesia in Laboratory Animals. American College of Laboratory Animal Medicine Series, Academic Press, San Diego. Flecknell, PA (1987). Laboratory Animal Anesthesia. Academic Press, Harcourt Brace Jovanovich, London. Hawk, CT and SL Leary (1995). Formulary for Laboratory Animals. Iowa State University Press, Ames. AVMA Panel on Euthanasia (1993). 1993 report of the AVMA panel on euthanasia. Journal of the American Veterinary Medical Association 202(2):229-249. Additional References: Close, B, K Banister, V Baumans, et al. (1997) Recommendations for euthanasia of experimental animals: Part 2. Laboratory Animals 31:1-32. Spikes, SE, SL Hoogstraten-Miller, GF Miller (1996). Comparison of five anesthetic agents administered intraperitoneally in the laboratory rat. Contemporary Topics 35:53-56. Hubbell, JAE, WW Muir (1996). Evaluation of a survey of the diplomates of the American College of Laboratory Animal Medicine on use of analgesic agents in animals used for biomedical research. Journal of the American Veterinary Medical Association 209(5):918-921. Hansen, BD (1994). Analgesic therapy. The Compendium (Small Animal) 868-873. Rush, HG (1996). Interpretive study of the report of the AVMA panel on euthanasia. Contemporary Topics 35(2):42-44. Danneman, PJ and TD Mandrell (1996). Evaluation of six anesthetic regimens in neonatal rats. Contemporary Topics 35(4):60.