Subject: Emotion

Effects of Holding Density on the Welfare of Zebrafish: A Systematic Review

Marica Andersson, Petronella Kettunen

Published in 2021

A scientific review of the effects of stocking density for juvenile and adult zebrafish used in research on growth, reproduction, stress responses (including behaviour), water quality and disease outbreaks. It recommends that stocking density should be included in guidelines for housing and should be discussed in the materials and methods sections of papers where zebrafish are used.

Document Types: Scientific review

Animal categories: Fish

Keywords:Housing, Living environment, Stress

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The Use of Artificial Intelligence in Assessing Affective States in Livestock

Suresh Neethirajan

Published in 2021

A scientific review of the use of artificial intelligence and machine learning to identify and then assess emotions in livestock.  These developments call for a multidisciplinary approach that combines affective computing, bioengineering and applied ethology to overcome both theoretical and practical obstacles.

Document Types: Scientific review

Animal categories: Bovines, Caprines, Ovines, Porcines, Poultry

Keywords:Animal-based measurements, Precision farming, Welfare indicators, Modelling

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Detecting Welfare in a Non-Verbal Species: Social/Cultural Biases and Difficulties in Horse Welfare Assessment

Martine Hausberger, Clémence Lesimple, Séverine Henry

Published in 2021

A scientific review investigating the reasons why most domestic horses have unsatisfactory welfare levels despite being very close to humans. It identifies human subjectivity, human misinterpretation of signals sent by horses, and human desensitisation to welfare situations as the main contributing factors. It proposes the promotion of validated indicators to allow horse welfare to be assessed objectively. 

Document Types: Scientific review

Animal categories: Equines

Keywords:Welfare indicators, Human-animal relationships

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The Human Aspect of Horse Care: How the COVID-19 Pandemic Impacted the Wellbeing of Equestrian Industry Stakeholders

Ashley Ward, Kate Stephen, Caroline Argo, Christine Watson, Patricia Harris, Madalina Neacsu, Wendy Russell, Dai Grove-White, Philippa Morrison

Published in 2021

Scientific article presenting the results of a survey of equine stakeholders on their feelings about the impact of the Covid-19 pandemic. It shows that the pandemic has affected veterinarians and horse owners due to restrictions on contact and human-horse interactions. However, the pandemic has also led to initiatives to maintain social links between owners as a remedy for isolation.

Document Types: Scientific review

Animal categories: Equines

Keywords:Adaptation of animals to the environment, Societal issues, Human-animal relationships

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Prevalence of Potential Indicators of Welfare Status in Young Calves at Meat Processing Premises in New Zealand

Anna L. Palmer, Ngaio J. Beausoleil, Alana C. Boulton, Naomi Cogger

Published in 2021

A scientific paper assessing the welfare of calves in the holding areas of abattoirs in New Zealand, using group and individual animal-based indicators. It proposes relevant indicators, recommending that they should be systematically incorporated into the protocols used to assess the welfare of calves at slaughter.

Document Types: Scientific paper

Animal categories: Bovines

Keywords:Animal-based measurements, Anxiety, Consciousness, Fear, Stress

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Slaughter of Pregnant Cattle at an Austrian Abattoir: Prevalence and Gestational Age

Ignaz Zitterer, Peter Paulsen

Published in 2021

Scientific paper to determine the percentage of pregnant cows and heifers slaughtered in a medium-sized Austrian slaughterhouse. The observed prevalences are much higher than estimated (6.4% as against an estimated 2.5%). The article recommends that measures should be taken to avoid sending pregnant cows to slaughter for ethical and public health reasons.

Document Types: Scientific paper

Animal categories: Bovines

Keywords:Societal issues, Stress

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Emerging indicators of fish welfare in aquaculture

Michelle Orietta Barreto, Sonia Rey Planellas, Yifei Yang, Clive Phillips, Kris Descovich

Published in 2021

A scientific review of invasive and non-invasive fish-welfare assessment methods, with a focus on their practical application in aquaculture. New technologies are helping to improve the accuracy, automation and practical applicability of these methods.

Document Types: Scientific review

Animal categories: Fish

Keywords:Precision farming, Welfare indicators, Livestock farming system

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Network analysis of tail-biting in pigs - indirect effect on tail posture

Thore Wilder, Joachim Krieter Nicole Kemper, Kathrin Büttner

Published in 2021

Scientific paper examining whether the tail position of pigs in a pen can be a predictive indicator for the occurrence of tail biting, taking into account the social structure of the group of penned pigs.

Document Types: Scientific paper

Animal categories: Porcines

Keywords:Animal-based measurements, Pain, Modelling, Mutilation, Welfare indicators

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Public Views of Dairy Calf Welfare and Dairy Consumption Habits of American Youth and Adults

Rielle K. Perttu, Beth A. Ventura, Aaron K. Rendahl, Marcia I. Endres

Published in 2021

Scientific article presenting the results of an opinion poll on the welfare of dairy calves and the consumption of dairy products by Americans. The most important requirement for the calves in the view of all participants concerned their physical welfare, with a 'natural' lifestyle, humane treatment and the emotional state of the animals coming a distant second. The majority (94%) of respondents were consumers of dairy products.

Document Types: Scientific paper

Animal categories: Bovines

Keywords: Societal issues, Welfare indicators, Human-animal relationships

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Behavior and Welfare of Undocked Heavy Pigs Raised in Buildings with Different Ventilation Systems

Marika Vitali, Enrica Santolini, Marco Bovo, Patrizia Tassinari, Daniele Torreggiani,Paolo Trevisi

Published in 2021

Scientific paper comparing the influence of two ventilation systems (natural and mechanical) on the behaviour and welfare of fattening pigs. It concludes that the mechanical system is associated with a more positive emotional state in the pigs, but that in both systems high temperatures are associated with heat stress, and that the welfare state of the animals decreases during the last phases of fattening.

Document Types: Scientific paper

Animal categories: Porcines

Keywords:Adaptation of the animal to the environment, Housing, Livestock buildings, Stress

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