scholarly journals Tail-biting behaviour pre-weaning: Association between other pig-directed and general behaviour in piglets

2021 ◽  
pp. 105385
Author(s):  
F. Hakansson ◽  
J.E. Bolhuis
Keyword(s):  
General Behaviour ◽  
Tail Biting ◽  
Biting Behaviour

Tail biting behaviour and tail damage in pigs and the relationship with general behaviour: Predicting the inevitable?

2014 ◽  
Vol 156 ◽  
pp. 22-36 ◽  
Author(s):  
Winanda W. Ursinus ◽  
Cornelis G. Van Reenen ◽  
Bas Kemp ◽  
J. Elizabeth Bolhuis
Keyword(s):  
General Behaviour ◽  
Tail Biting ◽  
The Relationship ◽  
Tail Damage ◽  
Biting Behaviour

Longitudinal study of adverse behaviour of undocked pigs in two different housing systems

2004 ◽  
Vol 31 ◽  
pp. 165-168
Author(s):  
H. A. Van de Weerd ◽  
C. M. Docking ◽  
J .E. L. Day ◽  
K. Breuer ◽  
S. A. Edwards
Keyword(s):  
Body Weight ◽  
Longitudinal Study ◽  
Flow System ◽  
Housing System ◽  
Finishing Pigs ◽  
Housing Systems ◽  
Tail Biting ◽  
Changes Over Time ◽  
Over Time ◽  
Biting Behaviour

AbstractThe development of adverse behaviour in group–housed growing/ finishing pigs with intact tails was studied in a straw–flow housing system and in a part–slatted system with a commercial enrichment object. Food intake, body weight and behaviour were monitored over the finishing period, with tail biting outbreaks defined as an occasion where three or more pigs within a group had freshly damaged tails and tail biting behaviour was ongoing. Data from the two systems were analysed to identify tail–biting outbreaks and behavioural changes over time. Levels of pig manipulation were higher in the part–slatted system. Over time, pigs in both systems showed reduced interest in the enrichment provided, but not in each other. Despite the presence of the enrichment device, tail biting occurred in all groups in the part–slatted system, but only 1/12 groups in the straw–flow system. The amount of time occupied by manipulation of the enrichment provided was very significantly higher for straw than for the commercial object. Better design of enrichment strategies is therefore needed and should be based on species–relevant requirements.

Identification of chromosomal locations associated with tail biting and being a victim of tail-biting behaviour in the domestic pig (Sus scrofa domesticus)

2012 ◽  
Vol 53 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Kaitlin Wilson ◽  
Ricardo Zanella ◽  
Carlos Ventura ◽  
Hanne Lind Johansen ◽  
Tore Framstad ◽  
...  
Keyword(s):  
Sus Scrofa ◽  
Domestic Pig ◽  
Tail Biting ◽  
Sus Scrofa Domesticus ◽  
Biting Behaviour

scholarly journals Factors identifying pigs predisposed to tail biting

2005 ◽  
Vol 80 (3) ◽  
pp. 307-312 ◽  
Author(s):  
V. E. Beattie ◽  
K. Breuer ◽  
N. E. O'Connell ◽  
I. A. Sneddon ◽  
J. T. Mercer ◽  
...  
Keyword(s):  
Birth Weight ◽  
Foraging Behaviour ◽  
Saline Solution ◽  
Production Performance ◽  
The Other ◽  
Lower Growth ◽  
Tail Biting ◽  
Significant Difference ◽  
The Uk ◽  
Biting Behaviour

AbstractApproximately 5% of pigs slaughtered in the UK have been tail-bitten, leading to welfare and production issues. Tail biting is sporadic and not all pigs tail bite. The aim of this study was to identify factors that are common in pigs that perform tail-biting behaviour, and that might be used in a predictive way to identify such animals.The behaviour of 159 pigs was observed in the post-weaning period. Pigs were weaned at 4 weeks of age. In the week prior to weaning and at 6 weeks of age each pig was individually tested in a tail chew test (tail chew test 1 and 2, respectively). The tail chew test involved recording the pig's behaviour directed towards two ropes, one of which had been soaked in saline solution and the other not. The production performance of the pigs was recorded from birth to 7 weeks of age. Time spent performing tail-biting behaviour correlated positively with time in contact with the rope in tail chew test 2 (r = 0·224, P < 0·05), and time spent ear biting correlated positively with time spent in rope directed behaviour in tail chew test 1 (r = 0·248, P < 0·01). Pigs that spent as much as 1·5% of their time of more performing tail-biting behaviour were lighter at weaning (26 days) and tended to be lighter at 7 weeks of age compared with pigs that spent less than 1·5% of their time performing tail-biting behaviour (weaning weight: ≥1·5% tail biting 8·96 kg, <1·5% tail biting 9·67 kg, P < 0·05; 7-week weight: ≥1·5% tail biting 15·75 kg, <1·5% tail biting 17·09 kg, P < 0·08). There was no significant difference in birth weight between pigs that spent ≥ or <1·5% of their time performing tail-biting behaviour. Pigs that spent 1·5% of their time or more performing tail-biting behaviour showed significantly lower growth rates between birth and weaning (≥1·5% tail biting 260 g/day, <1·5% tail biting 285 g/day, P < 0·05) but not between weaning and 7 weeks of age (≥1·5% tail biting 343 g/day, <1·5% tail biting 365 g/day, P > 0·05).The results suggest that pigs that tail bite have some nutritional deficiency that results in performance of foraging behaviour that is expressed in intensive housing as ear/tail biting.

scholarly journals A computer vision-based method for spatial-temporal action recognition of tail-biting behaviour in group-housed pigs

2020 ◽  
Vol 195 ◽  
pp. 27-41 ◽  
Author(s):  
Dong Liu ◽  
Maciej Oczak ◽  
Kristina Maschat ◽  
Johannes Baumgartner ◽  
Bernadette Pletzer ◽  
...  
Keyword(s):  
Computer Vision ◽  
Action Recognition ◽  
Tail Biting ◽  
Temporal Action ◽  
Biting Behaviour

Crocodylus johnstoni in the McKinlay River Area N. T, V.* Abnormalities and Injuries

1983 ◽  
Vol 10 (2) ◽  
pp. 407 ◽  
Author(s):  
GJW Webb ◽  
SC Manolis ◽  
R Buckworth
Keyword(s):  
Dry Season ◽  
Wet Season ◽  
Intraspecific Interactions ◽  
Bite Marks ◽  
Tail Biting ◽  
Crocodylus Johnstoni ◽  
Mandibular Teeth ◽  
Interspecific Comparisons ◽  
Nematode Worm ◽  
Biting Behaviour

Abnormalities and injuries in a sample of 797 C. johnstoni are described. 56.3% of animals were scarred or freshly injured, and 81.1% of injured animals had the tail injured. Rake and bite marks were the most common injury, and these apparently result from intraspecific interactions, perhaps including a specific 'tail-biting' behaviour. Interspecific comparisons indicate the frequencies of injuries are greatest in species which congregate in high densities, namely C. johnstoni and Caiman c. crocodilus. Nematode worm trails were rarely encountered on C. johnstoni under 31 cm snout-vent length (SVL) but were on 100% of animals over 80 cm SVL. Leeches were on 59% of animals caught in one area during the wet season, but only 2.6% of those caught further upstream in the dry season. The SVLs at which mandibular teeth protrude through the premaxilla are quantified and the significance of tooth protrusion discussed.

Trap Detection Based Decoding Algorithm for Tail-biting Convolutional Codes

2011 ◽  
Vol 33 (10) ◽  
pp. 2300-2305
Author(s):  
Xiao-tao Wang ◽  
Hua Qian ◽  
Jing Xu ◽  
Yang Yang
Keyword(s):  
Convolutional Codes ◽  
Decoding Algorithm ◽  
Tail Biting

scholarly journals A Three-Pronged Approach to Studying Sublethal Insecticide Doses: Characterising Mosquito Fitness, Mosquito Biting Behaviour, and Human/Environmental Health Risks

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 546
Author(s):  
Mara Moreno-Gómez ◽  
Rubén Bueno-Marí ◽  
Miguel. A. Miranda
Keyword(s):  
Environmental Health ◽  
Population Size ◽  
Mosquito Species ◽  
Management Strategies ◽  
Adult Mortality ◽  
Negative Control ◽  
Environmental Health Risks ◽  
Vector Management ◽  
Sublethal Doses ◽  
Biting Behaviour

Worldwide, pyrethroids are one of the most widely used insecticide classes. In addition to serving as personal protection products, they are also a key line of defence in integrated vector management programmes. Many studies have assessed the effects of sublethal pyrethroid doses on mosquito fitness and behaviour. However, much remains unknown about the biological, physiological, demographic, and behavioural effects on individual mosquitoes or mosquito populations when exposure occurs via spatial treatments. Here, females and males of two laboratory-reared mosquito species, Culex pipiens and Aedes albopictus, were exposed to five different treatments: three doses of the pyrethroid prallethrin, as well as an untreated and a negative control. The effects of each treatment on mosquito species, sex, adult mortality, fertility, F1 population size, and biting behaviour were also evaluated. To compare knockdown and mortality among treatments, Mantel–Cox log-rank tests were used. The results showed that sublethal doses reduced mosquito survival, influencing population size in the next generation. They also provided 100% protection to human hosts and presented relatively low risks to human and environmental health. These findings emphasise the need for additional studies that assess the benefits of using sublethal doses as part of mosquito management strategies.

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