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Cococcetta C, Coutant T, Phouratsamay A, Zoller G, Bagur S, Huynh M. Effect of Hooding on Physiological Parameters During Manual Restraint in Rhode Island Red Hybrid Hens ( Gallus gallus domesticus). J Avian Med Surg 2023; 37:155-164. [PMID: 37733454 DOI: 10.1647/21-00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Manual handling of chickens is required for many veterinary, research, and breeding procedures. This study aimed to assess the changes in physiological parameters over time during manual restraint of chickens, as well as the effect of hooding on these parameters. Heart rate, heart rate variability, respiratory rate, and body temperature were measured every 3 minutes for 15 minutes during manual restraint in 13 adult laying hens (Gallus gallus domesticus). Heart rate variability was significantly higher in hooded hens than in nonhooded hens (P= 0.003) but was not significant over time. Hooded hens were also found to have significantly lower heart rate (P = 0.043) and respiratory rate (P = 0.042) compared to nonhooded hens. Heart rate and respiratory rate significantly decreased over time, independent of the use of the hood (P = 0.008; P = 0.01, respectively). Temperature was found to increase significantly (P = 0.001) over time for both groups. Overall, hooding increased heart rate variability, a factor associated with a lower stress level, and decreased heart rate and respiratory rate. In conclusion, these data suggest that the use of the hood reduces stress levels in birds during manual restraint. Therefore, the use of the hood is encouraged for short (less than 15 minutes) painless procedures, such as physical examination or radiographic acquisition.
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Affiliation(s)
- Ciro Cococcetta
- Service des Nouveaux Animaux de Compagnie, Centre Hospitalier Vétérinaire Frégis, 94110 Arcueil, France,
| | - Thomas Coutant
- Service des Nouveaux Animaux de Compagnie, Centre Hospitalier Vétérinaire Frégis, 94110 Arcueil, France
| | - Albert Phouratsamay
- Service des Nouveaux Animaux de Compagnie, Centre Hospitalier Vétérinaire Frégis, 94110 Arcueil, France
| | - Graham Zoller
- Unité des Nouveaux Animaux de Compagnie, Clinique Vétérinaire Only Vet, 69800 Saint-Priest, France
| | - Sophie Bagur
- Institut de l'Audition, Institut Pasteur, Paris, France
| | - Minh Huynh
- Service des Nouveaux Animaux de Compagnie, Centre Hospitalier Vétérinaire Frégis, 94110 Arcueil, France
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Liles M, Di Girolamo N. Temperature Monitoring and Thermal Support in Exotic Animal Critical Care. Vet Clin North Am Exot Anim Pract 2023:S1094-9194(23)00019-1. [PMID: 37349184 DOI: 10.1016/j.cvex.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Body temperature measurement is one of the most important parameters to assess the health of a patient. In small exotic mammals, rectal temperature is obtained via a similar process as in dogs or cats, with a few specific differences. In reptiles and birds, measurement of body temperature can provide important information, albeit its accuracy may be limited. In most animals, temperature should be taken at the beginning of the examination to not artificially elevate the temperature during the physical exam. Heat support is typically indicated any time a patient's temperature is below the accepted core temperature range and cooling may be indicated whenever a patient's temperature exceeds a critical point.
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Affiliation(s)
- Marina Liles
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA 01536, USA
| | - Nicola Di Girolamo
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
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3
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OUTCOMES OF TREATMENT OF SNAKE AND SCORPION ENVENOMATION IN BIRDS OF PREY, WITH AND WITHOUT ANTIVENOM. J Zoo Wildl Med 2023. [DOI: 10.1638/2021-0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Gardhouse S, Beaufrere H, Hawkins MG, Sanchez-Migallon Guzman D, Jajou S, Paul Murphy J. Evaluation of Oral Transmucosal Administration of Pentobarbital for Euthanasia of Conscious Wild Birds. J APPL ANIM WELF SCI 2023; 26:4-14. [PMID: 33843357 DOI: 10.1080/10888705.2021.1911655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This prospective study evaluated oral transmucosal pentobarbital sodium at three doses in 110 wild-caught wild birds requiring euthanasia. Birds received transmucosal pentobarbital at five (430 mg/kg), six (516 mg/kg), and seven times (602 mg/kg) the intravenous dose for mammals. Time to first effects and loss of consciousness, presence of pupillary light and corneal reflexes, apnea, and asystole were recorded each minute. When asystole was not achieved at 5 minutes, IV pentobarbital was administered. Combining data for all doses, loss of consciousness occurred at a median (range) of 2 minutes (0-4.75 min), apnea at 3 minutes (0-6 min), and asystole at 4 minutes (0.5-5 min). Loss of consciousness and apnea occurred significantly faster in the 602 mg/kg dose group than in the 430 mg/kg group (p = 0.009, difference of 0.6 ± 0.2 min; p = 0.024, difference of 0.7 ± 0.3 min), respectively. Apnea and asystole were achieved in 80/110 birds within 5 minutes. Oral transmucosal pentobarbital results in rapid loss of consciousness and respiratory arrest and provides a reliable alternative euthanasia method compared to intravenous administration.
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Affiliation(s)
- Sara Gardhouse
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Hugues Beaufrere
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Michelle G Hawkins
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - David Sanchez-Migallon Guzman
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Sarah Jajou
- Health Sciences Center, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Joanne Paul Murphy
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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Wake respirometry allows breath-by-breath assessment of ventilation and CO2 production in unrestrained animals. iScience 2022; 25:104878. [PMID: 36060068 PMCID: PMC9437847 DOI: 10.1016/j.isci.2022.104878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/12/2022] [Accepted: 07/30/2022] [Indexed: 11/20/2022] Open
Abstract
Quantifying stress and energetic responses in animals are major challenges, as existing methods lack temporal resolution and elevate animal stress. We propose “wake respirometry,” a new method of quantifying fine-scale changes in CO2 production in unrestrained animals, using a nondispersive infrared CO2 sensor positioned downwind of the animal, i.e., in its wake. We parameterize the dispersion of CO2 in wakes using known CO2 flow rates and wind speeds. Tests with three bird species in a wind tunnel demonstrated that the system can resolve breath-by-breath changes in CO2 concentration, with clear exhalation signatures increasing in period and integral with body size. Changes in physiological state were detectable following handling, flight, and exposure to a perceived threat. We discuss the potential of wake respirometry to quantify stress and respiratory patterns in wild animals and provide suggestions for estimating behavior-specific metabolic rates via full integration of CO2 production across the wake. We use open-path nondispersive infrared spectroscopy CO2 sensor technology We measure ventilation rate and CO2 production in the wake of unrestrained animals Rapid responses to stressors and recovery from exercise can be measured Metabolic rate could be calculated by full integration of the wake of exhaled CO2
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A pilot study about assisted reproduction in harpy eagles (Harpia harpyja) in the course of species conservation including collection, storage, and analysis of semen. Theriogenology 2022; 181:190-201. [DOI: 10.1016/j.theriogenology.2022.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
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Carli G, Farabollini F. Autonomic correlates of defense responses, including tonic immobility (TI). PROGRESS IN BRAIN RESEARCH 2022; 271:191-228. [DOI: 10.1016/bs.pbr.2022.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Legg-St Pierre C, Desprez I, Chang S, Machin K, Ambros B. Effect of preoxygenation before isoflurane induction and rocuronium-induced apnea on time until hemoglobin desaturation in domestic chickens (Gallus gallus domesticus). Vet Anaesth Analg 2021; 48:524-531. [PMID: 34023230 DOI: 10.1016/j.vaa.2021.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/18/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the time to hemoglobin oxygen desaturation in chickens (Gallus gallus domesticus) with and without preoxygenation before isoflurane induction of anesthesia and rocuronium-induced apnea. STUDY DESIGN Prospective, randomized crossover study. ANIMALS A total of 10 healthy adult Lohmann Brown-Lite hens. METHODS Hens were anesthetized with isoflurane for intravenous (IV) and intraarterial catheter placement and allowed to fully recover from anesthesia. Hens in the preoxygenation treatment were administered oxygen (2 L minute-1) via a facemask for 3 minutes prior to induction of anesthesia with 3% isoflurane in oxygen. In the alternative treatment, hens were not preoxygenated prior to induction of anesthesia with isoflurane in oxygen. Apnea was then induced with rocuronium bromide (1.0 mg kg-1) administered IV, and anesthesia was maintained with IV propofol infusion. A cloacal pulse oximeter measured hemoglobin oxygen saturation (SpO2). Time was recorded from the start of apnea until SpO2 was 90% (desaturation). The trachea was intubated, and anesthesia was maintained with isoflurane in oxygen with manual ventilation until spontaneous breathing returned and SpO2 ≥ 99%. PaO2 was measured before each treatment, after preoxygenation, postinduction and at desaturation. Data were analyzed between treatments using Wilcoxon matched-pairs signed rank tests with Holm-Šidák multiple comparison test, and within treatments using Friedman test with Dunn's multiple comparison test (p < 0.05). Data are reported as median (range). RESULTS Time from start of apnea until hemoglobin desaturation was not significantly different between preoxygenated and nonpreoxygenated hens [26.5 (16-50) seconds and 24.0 (5-57) seconds, respectively; p = 0.25]. No differences in PaO2 between treatments were observed at any time point. CONCLUSIONS AND CLINICAL RELEVANCE Preoxygenation for 3 minutes before isoflurane mask induction of anesthesia and apnea does not significantly increase time until desaturation in hens.
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Affiliation(s)
- Crystalyn Legg-St Pierre
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
| | - Isabelle Desprez
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Stephanie Chang
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, USA
| | - Karen Machin
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Barbara Ambros
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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Berg KJ, Whittington JK, Watson MK, Wiggen K, Blalock A, Mitchell MA. Effects of Isoflurane Anesthesia on the Hematologic Values of Rehabilitated Wild Owls. J Avian Med Surg 2020; 33:369-380. [PMID: 31833305 DOI: 10.1647/2017-333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Isoflurane anesthesia is commonly used for owls when they are being rehabilitated to minimize stress during treatments and procedures, as well as to ensure caretaker safety. However, the effects of isoflurane anesthesia on the hematologic response of owls are not known. To investigate the effects of isoflurane anesthesia on the hematology of owls, 3 phases of investigation were performed on the subject animals: 1) single, short manual- versus single, short isoflurane-restraint episodes (n = 12; 38%); 2) a single, prolonged isoflurane episode (n = 10; 31%); and 3) serial, short isoflurane episodes (n = 10; 31%). All owls were classified as adult, and the sex for most individuals was unknown. Twelve owls (38%) were included in phase 1: 5 great horned owls (Bubo virginianus; 42%), 2 eastern screech owls (Megascops asio; 17%), and 5 barred owls (Strix varia; 42%). A separate cohort of 10 novel owls (31%) were selected for inclusion in both phases 2 and 3: 4 great horned owls (40%), 2 eastern screech owls (20%), 2 barred owls (20%), 1 barn owl (Tyto alba; 10%), and 1 snowy owl (Bubo scandiacus; 10%). For each anesthetic episode, blood was collected within 3 minutes of capture and in 15-minute intervals according to the duration of the procedure. Phase 2 had additional blood collections with the patient awake at 2 and 24 hours after time 0 blood collection, whereas phase 3 had an additional blood collection at 24 hours after time 0 blood collection. Hematologic analyses included packed cell volume, total solids, total white blood cell count, heterophil to lymphocyte ratio, and absolute heterophil, lymphocyte, monocyte, eosinophil, and basophil counts. Total white blood cell count decreased significantly during phase 1; packed cell volume decreased significantly during phases 2 and 3; total solids decreased significantly in phase 2; phase 2 demonstrated a lymphopenia with a concurrent decrease in the heterophil to lymphocyte ratio; and phase 3 demonstrated a heteropenia and significant changes in the eosinophil count. All hematologic changes noted in the study were within appropriate reference intervals for the owls but do suggest that there are physiologic consequences of restraining and anesthetizing these avian patients.
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Affiliation(s)
- Kyra J Berg
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Urbana, IL 61802, USA
| | - Julia K Whittington
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Urbana, IL 61802, USA
| | - Megan K Watson
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Urbana, IL 61802, USA
| | - Kelly Wiggen
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Urbana, IL 61802, USA
| | - Amanda Blalock
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Urbana, IL 61802, USA
| | - Mark A Mitchell
- Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70802, USA
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Martel A, Mans C, Doss GA, Williams JM. Effects of Midazolam and Midazolam-Butorphanol on Gastrointestinal Transit Time and Motility in Cockatiels ( Nymphicus hollandicus). J Avian Med Surg 2019; 32:286-293. [PMID: 31112641 DOI: 10.1647/2017-266] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Positive contrast gastrointestinal (GI) studies are performed frequently in avian medicine to identify GI obstruction, luminal distension, and intracoelomic mass effects. However, repeated manual restraint and radiographic positioning may result in a stress-response and associated morbidity in birds, which can be attenuated by administration of sedative drugs. In mammals, many sedative drugs have been shown to affect GI transit times and motility. In this randomized, blinded, controlled prospective study, the effects of midazolam (M; 6 mg/kg IM) and midazolam-butorphanol (MB; 3 mg/kg each IM) on GI transit times were evaluated in 12 healthy cockatiels (Nymphicus hollandicus). Iohexol (20 mL/kg) was administered by crop gavage 15 minutes after induction of sedation, and fluoroscopic images were obtained at different time points. Both sedation protocols significantly affected GI transit times and motility, and the MB protocol had more pronounced effects. Overall median (range) GI transit times were 60 (30-120), 90 (30-120), and 120 (120-180) minutes for the control, M, and MB groups, respectively. Ventricular contractions were markedly reduced with both sedation protocols, while esophageal boluses were reduced only in the MB group. Visualization of the GI tract after iohexol administration was graded highest in the control group and poorest in the MB group. Our results show that commonly used sedative drugs have significant effects on GI transit time and motility in birds. Therefore, GI transit times obtained in sedated birds should not be compared to available reference transit times obtained from unsedated animals.
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Affiliation(s)
- Anna Martel
- University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Sciences, Madison, WI, 53706, USA
| | - Christoph Mans
- University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Sciences, Madison, WI, 53706, USA
| | - Grayson A Doss
- University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Sciences, Madison, WI, 53706, USA
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Doss GA, Fink DM, Mans C. Assessment of sedation after intranasal administration of midazolam and midazolam-butorphanol in cockatiels (Nymphicus hollandicus). Am J Vet Res 2018; 79:1246-1252. [DOI: 10.2460/ajvr.79.12.1246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Doss GA, Martel A, Mans C, Williams JM. Effects of Midazolam and Midazolam-Butorphanol on Gastrointestinal Transit Time and Motility in Cockatiels (Nymphicus hollandicus). J Avian Med Surg 2018. [DOI: 10.1647/2018-286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Grayson A. Doss
- From the University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Scie
| | - Anna Martel
- From the University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Scie
| | - Christoph Mans
- From the University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Scie
| | - Jackie M. Williams
- From the University of Wisconsin-Madison, School of Veterinary Medicine, Department of Surgical Scie
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Abstract
This article presents relevant advances in avian medicine and surgery over the past 5 years. New information has been published to improve clinical diagnosis in avian diseases. This article also describes new pharmacokinetic studies. Advances in the understanding and treatment of common avian disorders are presented in this article, as well. Although important progress has been made over the past years, there is still much research that needs to be done regarding the etiology, pathophysiology, diagnosis, and treatment of avian diseases and evidence-based information is still sparse in the literature.
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Affiliation(s)
- Noémie M Summa
- Department of Clinical Sciences, School of Veterinary Medicine, University of Montreal, 3200, rue Sicotte, Saint-Hyacinthe, QC J2S 7M2, Canada
| | - David Sanchez-Migallon Guzman
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, 1 Garrod Drive, Davis, CA 95616, USA.
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Doss GA, Mans C. The Effect of Manual Restraint on Physiological Parameters in Barred Owls (Strix varia). J Avian Med Surg 2017; 31:1-5. [DOI: 10.1647/2016-167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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