Evaluation of a spring-powered captive bolt gun for killing kangaroo pouch young

Sharp, Trudy; McLeod, Steven R.; Leggett, Keith E. A.; Gibson, T. J.

doi:10.1071/wr14094

Cited by 20 publications

(23 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The difference in TTD between the 2 calibers demonstrates a considerable improvement (reduction) in mean duration of suffering associated with the higher energy projectiles. The greater IDR for the higher energy projectiles also demonstrated an improved capacity to induce instantaneous insensibility, the preferred measure for humane killing methods (Newhook and Blackmore , Sharp et al ). The reduced incidence of animals escaping wounded (WR), which is the least desirable animal‐welfare outcome from a shooting event (Hampton et al ), associated with the higher energy projectile demonstrated a considerable animal welfare improvement.…”

Section: Discussionmentioning

confidence: 99%

“…Even penetrating captive bolts only superficially penetrate into the cerebral hemispheres and thus do not cause direct physical damage to the deeper regions of the brain such as the brain stem, which holds the vital cardiovascular and respiratory centers (Daly and Whittington ). As a result, negative animal‐welfare impacts have been demonstrated from the use of captive‐bolt devices with low kinetic‐energy profiles (Sharp et al ). For both wildlife shooting (Daoust and Cattet ) and captive bolt (von Wenzlawowicz et al ) studies, it is recognized that accuracy is less critical if projectiles or bolts with high kinetic‐energy profiles are used.…”

Section: Discussionmentioning

confidence: 99%

“…The kinetic energy delivered is of critical importance for the capacity of physical killing methods to induce instantaneous insensibility. This has been demonstrated for kill‐traps (Warburton and Hall ), captive‐bolt euthanasia devices (Blackmore , Sharp et al ), euthanasia of livestock by shooting (U.S. Department of Agriculture , Thomson et al ), and marine mammal shooting (Daoust and Cattet , Øen and Knudsen , Mörner et al , Hampton et al ). Projectile energy is also an important determinant of the outcomes of wildlife darting (Valkenburg et al , Cattet et al ) and archery (Grellner et al ).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Improving animal welfare in wildlife shooting: The importance of projectile energy

et al. 2016

View full text Add to dashboard Cite

In wildlife shooting programs, the energy profile of the projectile or bullet (i.e., kinetic energy transferred to the animal), as distinct from caliber (projectile diameter), is an important factor for animal welfare. We examined the role of projectile energy in determining animal welfare outcomes for a typical European rabbit (Oryctolagus cuniculus) sharpshooting program. We compared 2 projectiles of different energy profiles: low-energy 40-grain .22 long rifle rimfire (.22LR; 198 J) bullets and high-energy 40-grain .222 Remington 1 centerfire (.222R; 1,433 J) bullets, fired under similar conditions on 3 nights in September 2014, on a livestock grazing property near Broken Hill, New South Wales, southeastern Australia. We used a thermal-imaging camera to collect antemortem data from 500 rabbits that were shot at varying distance. We collected postmortem data via visual inspection from 482 rabbits that were killed. We used these data to compare 3 animal welfare parameters: wounding rate, duration of suffering, and ballistic injuries. We then used regression modeling to measure the effect of projectile type on these welfare parameters while accounting for shooting distance. All animal welfare parameters indicated that .222R projectiles were more humane than .22LR projectiles. When controlling for distance, for rabbits shot with a .22LR compared with a .222R, the odds of nonlethal wounding increased by a factor of 8 and noninstantaneous death increased by a factor of 9. All animal welfare parameters declined with increasing distance for both projectiles. Our results show that projectile energy and shooting distance were critical determinants of animal welfare outcomes in wildlife shooting programs. Ó

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Improving animal welfare in wildlife shooting: The importance of projectile energy

et al. 2016

View full text Add to dashboard Cite

show abstract

“…For example, in the context of euthanasia of pouch young during kangaroo (Macropus spp.) shooting, an appropriate welfare standard may be that >95% of animals should be rendered immediately insensible (Sharp et al 2015). In contrast, currently approved resource-based measures prescribe that only blunt trauma to the base of the skull may be used (Commonwealth of Australia 2008), precluding development of innovative approaches (e.g.…”

Section: Welfare Studiesmentioning

confidence: 99%

“…Daoust and Cattet 2004;Jansen 2011;Daoust et al 2013;Mörner et al 2013;Work and Balazs 2013;Hampton et al 2014a;Sharp et al 2015). Studies that use animal-based measures to compare multiple alternative capture methods (e.g.…”

mentioning

confidence: 99%

Animal welfare and the use of procedural documents: limitations and refinement

et al. 2016

View full text Add to dashboard Cite

Increased scrutiny of animal welfare in wildlife management has seen a recent proliferation in the use of procedural documents (standard operating procedures, codes of practice etc.). Some procedural documents are presumed to represent ‘best practice’ methods, whereby adherence to prescribed inputs is explicitly purported to generate humane outcomes. However, the relationship between what is done to animals (inputs) and what they experience (outputs), as assessed by animal-based measures, has received little attention. Procedural documents are commonly developed in the absence of empirical animal-based measures, creating uncertainty in animal welfare outcomes. Prescribed procedures are valuable as guidelines for standardising methodology, but the development of ‘welfare standards’ that focus on desired thresholds for animal-based measures offers many advantages for improving animal welfare. Refinement of the use of procedural documents in wildlife management is required to ensure they generate desirable outcomes for animals, and do not preclude the development of improved methods.

show abstract

Evaluation of Captive Bolt for Emergency Field Euthanasia in Canada Geese

Shearer¹,

Brook

Sharp

2021

Wildlife Society Bulletin

View full text Add to dashboard Cite

In rare circumstances during research or monitoring operations for wild birds, emergency euthanasia is required. However, standard methods of euthanasia may not be humane for large birds. We evaluated the use of a Dick KTBG® spring‐powered, penetrating captive bolt for the euthanasia of Canada geese (Branta canadensis). We conducted trials on hunter‐harvested geese to determine anatomical placement of the device and to assess skull and brain penetration effectiveness. We then assessed the device for euthanasia on anesthetized geese. Although results using dead geese suggested the device may be effective (i.e., consistent skull penetration, and trajectory depth into relevant brain structures), we found the device did not produce consistent, humane euthanasia for anesthetized geese and was not suitable for emergency field euthanasia for Canada geese. We encourage further evaluations of emergency euthanasia methods using a 2‐step process of determining placement and efficacy on dead birds and then testing on live anesthetized individuals. © 2021 The Wildlife Society.

show abstract

Evaluation of a spring-powered captive bolt gun for killing kangaroo pouch young

Cited by 20 publications

References 25 publications

Improving animal welfare in wildlife shooting: The importance of projectile energy

Improving animal welfare in wildlife shooting: The importance of projectile energy

Animal welfare and the use of procedural documents: limitations and refinement

Evaluation of Captive Bolt for Emergency Field Euthanasia in Canada Geese

Contact Info

Product

Resources

About