A.J. Tilbrook
YOU?
Author Swipe
View article: Proteins as indicators of stress and pain in lambs after castration by a rubber ring with and without pain relief
Proteins as indicators of stress and pain in lambs after castration by a rubber ring with and without pain relief Open
The objective assessment of pain in animals is challenging because indicators that are used are complex to interpret, inconsistent in presentation, and unable to distinguish between pain that varies in intensity and severity. The present s…
View article: The intricate relationship between stress and animal welfare: from historical perspective to new avenues
The intricate relationship between stress and animal welfare: from historical perspective to new avenues Open
We discuss the intricate relationship between the evolution of the concept of stress and the development of the concept of animal welfare. After a brief review of the main concepts of animal welfare, we analyse important steps in the evolu…
View article: The Path to Resilience: Improving Welfare in Aquaculture Through Physical Exercise and Stressor Predictability Training
The Path to Resilience: Improving Welfare in Aquaculture Through Physical Exercise and Stressor Predictability Training Open
The aquaculture industry is growing rapidly, prompting an increased focus on improving the welfare of fish. While meeting physical, psychological, and behavioural needs remains a priority, the concept of resilience offers a deeper approach…
View article: Near or mid-infra-red spectroscopy of the prefrontal cortex to identify previous stressful experience in an animal
Near or mid-infra-red spectroscopy of the prefrontal cortex to identify previous stressful experience in an animal Open
Measuring the quality of life of an animal in a production system is difficult, time-consuming, and expensive. We tested the ability of both NIR and MIR spectroscopy, each combined with machine learning, to predict the prior exposure of pi…
View article: Effects of maternal contact and positive human contact during lactation on pork quality: Positive human contact to piglets during lactation improves pork loin muscle pH
Effects of maternal contact and positive human contact during lactation on pork quality: Positive human contact to piglets during lactation improves pork loin muscle pH Open
Enhancing stress resilience through the early life period in pigs could potentially improve pork quality. It was hypothesised that pigs receiving maternal contact or positive human contact during lactation would have improved carcass and p…
View article: Maternal contact and positive human interactions during lactation impact on pig stress resilience post-weaning
Maternal contact and positive human interactions during lactation impact on pig stress resilience post-weaning Open
This study investigated the impact of early life interactions on stress resilience of weaner pigs. The hypotheses tested were that reduced maternal contact increases the stress response of pigs to weaning, and that positive human contact d…
View article: Early human contact and housing for pigs – part 2: resilience to routine husbandry practices
Early human contact and housing for pigs – part 2: resilience to routine husbandry practices Open
The ability of pigs to cope with routine farming practices can affect their welfare. This paper is part of a series on early experiences and stress, and reports on the effects of early human contact and housing on the responses of pigs to …
View article: Early human contact and housing for pigs – part 3: ability to cope with the environment
Early human contact and housing for pigs – part 3: ability to cope with the environment Open
Early experiences can have long-term impacts on stress adaptability. This paper is the last of three in a series on early experiences and stress in pigs, and reports on the effects of early human contact and housing on the ability of pigs …
View article: Early human contact and housing for pigs − part 1: responses to humans, novelty and isolation
Early human contact and housing for pigs − part 1: responses to humans, novelty and isolation Open
The development of fear and stress responses in animals can be influenced by early life experiences, including interactions with humans, maternal care, and the physical surroundings. This paper is the first of three reporting on a large ex…
View article: Finding biomarkers of experience in animals
Finding biomarkers of experience in animals Open
At a time when there is a growing public interest in animal welfare, it is critical to have objective means to assess the way that an animal experiences a situation. Objectivity is critical to ensure appropriate animal welfare outcomes. Ex…
View article: Excess dietary Lys reduces feed intake, stimulates jejunal CCK secretion and alters essential and non-essential blood AA profile in pigs
Excess dietary Lys reduces feed intake, stimulates jejunal CCK secretion and alters essential and non-essential blood AA profile in pigs Open
Background Commercial diets are frequently formulated to meet or exceed nutrient levels including those of limiting essential amino acids (AA) covering potential individual variations within the herd. However, the provision of dietary exce…
View article: Maternal contact and positive human interactions during lactation impacts piglet performance and behaviour during lactation
Maternal contact and positive human interactions during lactation impacts piglet performance and behaviour during lactation Open
Introduction Early life interactions with the sow or humans can have lifelong consequences on welfare and performance in pigs. It was hypothesised that piglets that received increased maternal contact and positive human contact would displ…
View article: Sex differences and the role medullary system and hypothalamo-pituitary of sex steroids in sympatho-adrenal adrenal axis responses to stress
Sex differences and the role medullary system and hypothalamo-pituitary of sex steroids in sympatho-adrenal adrenal axis responses to stress Open
not available.
View article: Review of the influence of farrowing and lactation housing and positive human contact on sow and piglet welfare
Review of the influence of farrowing and lactation housing and positive human contact on sow and piglet welfare Open
Farrowing crates continue to be the most common system of housing farrowing and lactating sows, however continuous confinement is one of the most contentious welfare issues in livestock production. This review aims to critically evaluate t…
View article: Leucine (and lysine) increased plasma levels of the satiety hormone cholecystokinin (CCK), and phenylalanine of the incretin glucagon-like peptide 1 (GLP-1) after oral gavages in pigs
Leucine (and lysine) increased plasma levels of the satiety hormone cholecystokinin (CCK), and phenylalanine of the incretin glucagon-like peptide 1 (GLP-1) after oral gavages in pigs Open
Excess dietary amino acids (AA) has been associated with reduced feed intake, increased satiation, and extended satiety in pigs. Recent ex vivo studies suggested that satiety peptide cholecystokinin (CCK) and insulinotropic glucagon-like p…
View article: An oral gavage of lysine elicited early satiation while gavages of lysine, leucine, or isoleucine prolonged satiety in pigs
An oral gavage of lysine elicited early satiation while gavages of lysine, leucine, or isoleucine prolonged satiety in pigs Open
Excess dietary amino acids (AA) may negatively affect feed intake in pigs. Previous results showed that Lys, Leu, Ile, Phe, and Glu significantly increased gut peptide secretion (i.e., cholecystokinin, glucagon-like peptide 1). However, th…
View article: Intra- and Inter-sample Variation in Wool Cortisol Concentrations of Australian Merino Lambs Between Twice or Single Shorn Ewes
Intra- and Inter-sample Variation in Wool Cortisol Concentrations of Australian Merino Lambs Between Twice or Single Shorn Ewes Open
Stress in Merino sheep can cause a reduction in the quantity and quality of fine wool production. Furthermore, it has been found that environmental stress during pregnancy can negatively affect the wool follicles of the developing fetus. T…
View article: Measurement of corticosterone in the plasma, eggs and faeces of laying hens
Measurement of corticosterone in the plasma, eggs and faeces of laying hens Open
Context Stress responses in chickens are commonly assessed from measurements of corticosterone in blood, but there is an increasing research effort to develop non-blood means of assessing the activity of the hypothalamo–pituitary (HPA) axi…
View article: Interplay Between Stress and Reproduction: Novel Epigenetic Markers in Response to Shearing Patterns in Australian Merino Sheep (Ovis aries)
Interplay Between Stress and Reproduction: Novel Epigenetic Markers in Response to Shearing Patterns in Australian Merino Sheep (Ovis aries) Open
In this study, we determined the effect(s) of early shearing on Australian Merino ewes ( Ovis aries ) and their lambs. To test this research question, we used a suite of field and laboratory methods including GPS collars, wool cortisol, an…
View article: CCK and GLP-1 release in response to proteinogenic amino acids using a small intestine ex vivo model in pigs
CCK and GLP-1 release in response to proteinogenic amino acids using a small intestine ex vivo model in pigs Open
The impact of individual amino acids (AA) on gut hormone secretion and appetite regulation in pigs remains largely unknown. The aim of the present study was to determine the effect of the 20 proteinogenic AA on the release of the anorexige…
View article: Interplay between stress and reproduction: Novel epigenetic markers in response to shearing patterns in Australian Merino sheep (<i>Ovis aries</i>)
Interplay between stress and reproduction: Novel epigenetic markers in response to shearing patterns in Australian Merino sheep (<i>Ovis aries</i>) Open
In this study, we determined the effect(s) of shearing on Australian Merino ewes ( Ovis aries ). To test this research question, we used a suite of field and laboratory methods including GPS collars, wool cortisol and novel epigenetic mark…
View article: Layer hen welfare
Layer hen welfare Open
Layer hen welfareThere are ongoing concerns about the welfare of the animals that society uses.Farm animal welfare, and particularly laying hen welfare, is a contemporary issue for the public, consumers, policy-makers, stakeholders in the …
View article: Positive Human Contact and Housing Systems Impact the Responses of Piglets to Various Stressors
Positive Human Contact and Housing Systems Impact the Responses of Piglets to Various Stressors Open
This experiment studied the effects of lactation housing systems and human interaction on piglets’ responses to routine stressors. Forty litters of piglets were reared in either a standard farrowing crate (FC) or a loose farrowing and lact…
View article: Editorial: Animal Welfare Assessment: Edition 1
Editorial: Animal Welfare Assessment: Edition 1 Open
EDITORIAL article Front. Vet. Sci., 30 April 2021 | https://doi.org/10.3389/fvets.2021.653422
View article: A Retrospective Literature Evaluation of the Integration of Stress Physiology Indices, Animal Welfare and Climate Change Assessment of Livestock
A Retrospective Literature Evaluation of the Integration of Stress Physiology Indices, Animal Welfare and Climate Change Assessment of Livestock Open
In this retrospective study, we conducted a desktop-based analysis of published literature using the ScienceDirect™ search engine to determine the proportion of livestock research within the last 7 years (2015–2021) that have applied anima…
View article: Impact of the COVID-19 Pandemic on the Welfare of Animals in Australia
Impact of the COVID-19 Pandemic on the Welfare of Animals in Australia Open
We report on the various responses in Australia during 2020 to minimize negative impacts of the COVID-19 pandemic on the welfare of animals. Most organizations and individuals with animals under their care had emergency preparedness plans …
View article: Costs and Benefits of Improving Farm Animal Welfare
Costs and Benefits of Improving Farm Animal Welfare Open
It costs money to improve the welfare of farm animals. For people with animals under their care, there are many factors to consider regarding changes in practice to improve welfare, and the optimal course of action is not always obvious. D…