North American porcupine (Erethizon dorsatum) live capture...
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All porcupines caught using these methods: • spotted in tree & captured in a Havahart® trap & chicken wire fence • traps baited with salt, peanut butter and apples • trap checked at least every 12 hours • sedated IM base of tail with Domitor® • All drugs administered IM in the base of the tail under the supervision of a veterinarian • revived IM base of tail with Antisedan® • animals monitored until safe in a tree Details on panorama across bottom! Abstract: • capture and sedation techniques of North American porcupine (Erethizon dorsatum) • drugs described in other studies: lead to mortalities, injuries and extended holding/recovery times • the intention of our research is to determine the effectiveness of this new method of capturing, sedating, handling and reviving porcupines • this work is part of a larger study of porcupines in an urban riparian forest • 20 animals captured from 2003 to 2007 • capture and handling techniques used: • baited Havahart® live trap • funnel cage holding (for injection of sedative) • medetomidine hydrochloride (Domitor®) used for sedation • antagonist atipamezole hydrochloride (Antisedan®) for revival • Results: • sedative and reversal agents used effectively: no mortalities/ ill effects • rapid return to habitat: mean processing/recovery time under an hour North American porcupine (Erethizon dorsatum) live capture technique and the effectiveness of using the sedative medetomidine hydrochloride (Domitor®) and the antagonist atipamezole hydrochloride (Antisedan®) to facilitate handling. Katie Elder & Anna Pérez-Umphrey Bosque School 4000 Learning Rd. NW Albuquerque, NM 87048 < 1 yrs 2 1 to 2 yrs 3 > 2 yrs 15 Age # Caught • a combination of medetomine hydrochloride, propylparaben, sodium chloride, methylparaben, and water • non-narcotic, alpha-inhibitor • used for minor surgeries, pain relief, and dental care in dogs • produces sedation and analgesia • 0.22 cc/kg • reverses the effects of Domitor • a combination of atipamezole hydrochloride, methylparaben, sodium chloride and water • an a2-adrenergic antagonist • five times the concentration of Domitor® • 0.22 cc/kg mean dose per kg 0.24 cc/kg mean sedation time 42 min mean revival time 4 min mean handling time 66 min • Domitor® provides enough sedation for basic examinations and Antisedan® allows for quick recovery and return to habitat • findings from our use of Domitor® and Antisedan®: • minimal recovery time (under five minutes) • no noted residual drug effects • no mortality • no negative side effects noted • trapping method humane, but does not guarantee a capture Acknowledgements Mr. Dan Shaw Ms. Kimi Sheerer Dr. Susan Dicks BEMP Bosque School Advanced Wildlife Studies N=20 Future Considerations: • effects of drugs on pregnant porcupines • increase sample size Conclusions Domitor® Antisedan® Results Total Handling Time 133 35 66 0 20 40 60 80 100 120 140 Time (min) Max Min Mean Dosage 0.51 0.07 0.24 0 0.1 0.2 0.3 0.4 0.5 0.6 Dose (cc/kg) Max Min Mean Sedation Time 78 32 42.6 0 10 20 30 40 50 60 70 80 90 Time (min) Max Min Mean Weight 9.5 2.5 6.2 0 1 2 3 4 5 6 7 8 9 10 Weight (kg) Max Min Mean Revival Time 10 0 4 0 2 4 6 8 10 12 Time (min) Max Min Mean Porcupine spotted in tree. Chicken wire placed around tree channels animal into a live trap; peanut butter trail down the tree. Trap covered in natural materials to create the lowest stress level. Cage covered and moved to processing location; animal weighed in cage to determine dosage. Trap set next to a chicken wire- wooden funnel and tarp is then moved from the cage to the funnel. Porcupine encouraged to enter the funnel. Tail held by gloved hands or under a plastic lid while an injection of Domitor® is administered. Once animal stops reacting to stimuli the funnel is opened and data is collected. Identifying microchip injected on the back between the shoulder blades and radio collar placed around the neck. Porcupine is returned to original capture location. Reversal drug, Antisedan®, administered. Porcupine is monitored until it climbs back up a tree. Animal Weight to Dose 0 0.1 0.2 0.3 0.4 0.5 0.6 2.5 4 5 5.5 6 6.5 7 8 9.5 Weight (kg) Dose(cc/kg) Max Min Mean Katie Anna
Transcript of North American porcupine (Erethizon dorsatum) live capture...
All porcupines caught using these methods: • spotted in tree & captured in a Havahart® trap & chicken wire fence
• traps baited with salt, peanut butter and apples
• trap checked at least every 12 hours
• sedated IM base of tail with Domitor®
• All drugs administered IM in the base of the tail
under the supervision of a veterinarian
• revived IM base of tail with Antisedan®
• animals monitored until safe in a tree
Details on panorama across bottom!
Abstract: • capture and sedation techniques of North American porcupine (Erethizon dorsatum)
• drugs described in other studies: lead to mortalities, injuries and extended holding/recovery times
• the intention of our research is to determine the effectiveness of this new method of capturing, sedating, handling and reviving porcupines
• this work is part of a larger study of porcupines in an urban riparian forest
• 20 animals captured from 2003 to 2007
• capture and handling techniques used:
• baited Havahart® live trap
• funnel cage holding (for injection of sedative)
• medetomidine hydrochloride (Domitor®) used for sedation
• antagonist atipamezole hydrochloride (Antisedan®) for revival
• Results:
• sedative and reversal agents used effectively: no mortalities/ ill effects
• rapid return to habitat: mean processing/recovery time under an hour
North American porcupine (Erethizon dorsatum) live capture technique and the effectiveness
of using the sedative medetomidine hydrochloride (Domitor®) and the antagonist
atipamezole hydrochloride (Antisedan®) to facilitate handling. Katie Elder & Anna Pérez-Umphrey
Bosque School 4000 Learning Rd. NW Albuquerque, NM 87048
< 1 yrs 2
1 to 2 yrs 3
> 2 yrs 15
Age # Caught
• a combination of medetomine hydrochloride, propylparaben, sodium chloride, methylparaben, and water
• non-narcotic, alpha-inhibitor
• used for minor surgeries, pain relief, and dental care in dogs
• produces sedation and analgesia
• 0.22 cc/kg
• reverses the effects of Domitor
• a combination of atipamezole hydrochloride, methylparaben, sodium chloride and water
• an a2-adrenergic antagonist
• five times the concentration of Domitor®
• 0.22 cc/kg
mean dose per kg 0.24 cc/kg
mean sedation time 42 min
mean revival time 4 min
mean handling time 66 min
• Domitor® provides enough sedation for basic examinations and Antisedan® allows for quick recovery and return to habitat • findings from our use of Domitor® and Antisedan®:
• minimal recovery time (under five minutes) • no noted residual drug effects • no mortality • no negative side effects noted
• trapping method humane, but does not guarantee a capture
Acknowledgements Mr. Dan Shaw Ms. Kimi Sheerer Dr. Susan Dicks BEMP Bosque School Advanced Wildlife Studies
N=20
Future Considerations:
• effects of drugs on pregnant porcupines
• increase sample size
Conclusions
Domitor® Antisedan® Results
Total Handling Time
133
35
66
0
20
40
60
80
100
120
140
Tim
e (
min
)
Max
Min
Mean
Dosage
0.51
0.07
0.24
0
0.1
0.2
0.3
0.4
0.5
0.6
Do
se (
cc/k
g)
Max
Min
Mean
Sedation Time
78
32
42.6
0
10
20
30
40
50
60
70
80
90
Tim
e (
min
)
Max
Min
Mean
Weight
9.5
2.5
6.2
0
1
2
3
4
5
6
7
8
9
10
Weig
ht
(kg
)
Max
Min
Mean
Revival Time
10
0
4
0
2
4
6
8
10
12
Tim
e (
min
)
Max
Min
Mean
Porcupine spotted in tree.
Chicken wire placed around tree channels animal into a live trap; peanut butter trail down the tree.
Trap covered in natural materials to create the lowest stress level.
Cage covered and moved to processing location; animal weighed in cage to determine dosage.
Trap set next to a chicken wire-wooden funnel and tarp is then moved from the cage to the funnel. Porcupine encouraged to enter the funnel. Tail held by gloved hands or under a
plastic lid while an injection of Domitor® is administered.
Once animal stops reacting to stimuli the funnel is opened and data is collected.
Identifying microchip injected on the back between the shoulder blades and radio collar placed around the neck. Porcupine is returned to
original capture location.
Reversal drug, Antisedan®, administered.
Porcupine is monitored until it climbs back up a tree.
Animal Weight to Dose
0
0.1
0.2
0.3
0.4
0.5
0.6
2.5 4 5 5.5 6 6.5 7 8 9.5
Weight (kg)
Do
se
(cc
/kg
)
Max
Min
Mean
Katie Anna
