Results 131 to 140 of about 502,069 (184)
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Tail docking and tail biting in pigs
Veterinary Record, 2019I write to voice my concern over a recent ethics case study published in In Practice (March 2019, vol 41, pp 88-91) that outlines a particular scenario on a pig farm where tail docking of pigs is addressed. This particular ethics case comes at a time when there is a huge amount of drive and progress being made within the pig sector to change protocols
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Tail-biting in outdoor pig production
The Veterinary Journal, 2006A study was performed in five identical outdoor production units in the same geographic area using growing-finishing pigs of similar genetic makeup, age, diet and feed management. The severity of tail-biting (TS) was scored 1-4. The average group prevalence of bitten tails at slaughter on different farms was between 14.1+/-2.1% and 20.1+/-3.0 ...
P K, Walker, G, Bilkei
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217 Understanding tail-biting in pigs: Effects of time of day, posture, and feeder occupancy.
Journal of Animal ScienceThe objective of this study was to identify when and where tail-biting occurs and analyze pig postures to inform management strategies that reduce tail-biting and improve pig welfare.
Courtney A Archer +6 more
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SIVA: A Low Complexity and Optimum Decoding Algorithm for Tail-Biting Codes
IEEE Transactions on Wireless Communications, 2021This paper introduces a low complexity and optimum decoding algorithm for tail-biting codes. The algorithm, called Selective Initialization Viterbi Algorithm (SIVA), performs the Viterbi algorithm (VA) iteratively and assigns at each iteration the ...
Mohammad Karimzadeh, M. Vu
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Tail-Biting LDPC Convolutional Codes
2007 IEEE International Symposium on Information Theory, 2007In this paper, the tail-biting version of the low-density parity-check convolutional codes (LDPCCCs) is introduced and investigated. The definition of the tail-biting LDPCCCs (TB-LDPCCCs) is given through their parity-check matrices and the basic ideas behind the architectures of the encoders and decoders for these codes are also presented. In addition,
Marcos B.S. Tavares +2 more
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Linearity-Enhanced Serial List Decoding of Linearly Expurgated Tail-Biting Convolutional Codes
International Symposium on Information TheoryWith a sufficiently large list size, the serial list Viterbi algorithm (S-LVA) provides maximum likelihood (ML) decoding of a concatenated convolutional code (CC) and an expurgating linear function (ELF), which is similar in function to a cyclic ...
Wenhui Sui +4 more
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Understanding and preventing tail biting in pigs
, 2021Tail biting is a behavioural problem of pigs which is associated with welfare detriment for both the perpetrator and victim. It is seen to some extent on most farms worldwide and causes considerable economic loss, leading to widespread adoption of tail ...
S. Edwards, A. Valros
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Design of Serially Concatenated Tail-Biting Convolutional Code With Index Modulation
IEEE Communications LettersThe transmission characterized by ultra reliable and low latency requirements presents a significant challenge in the future networks, leading to an increasing interest in powerful short channel codes.
Chao Dong +4 more
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Acta agriculturae Scandinavica. Section A, Animal science
This study analyses a potential link of certain pathological findings to tail biting and whether tail biting/necrosis occurs in wild boars. Thirteen young wild boars and 17 rearing pigs were pathologically examined and findings compared by Chi2/t-Tests ...
I. Czycholl +4 more
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This study analyses a potential link of certain pathological findings to tail biting and whether tail biting/necrosis occurs in wild boars. Thirteen young wild boars and 17 rearing pigs were pathologically examined and findings compared by Chi2/t-Tests ...
I. Czycholl +4 more
semanticscholar +1 more source
Applied Animal Behaviour Science, 2011
Abstract This study investigated the association between tail biting (TB) and other abnormal behaviours in a group of non-tail docked pigs. Behavioural data were collected from 742 pigs housed on a commercial farm. The prevalence of performed and received TB, belly nosing, bar biting, ear biting and mounting was recorded during two 30min observation ...
Emma Brunberg +2 more
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Abstract This study investigated the association between tail biting (TB) and other abnormal behaviours in a group of non-tail docked pigs. Behavioural data were collected from 742 pigs housed on a commercial farm. The prevalence of performed and received TB, belly nosing, bar biting, ear biting and mounting was recorded during two 30min observation ...
Emma Brunberg +2 more
openaire +1 more source