Effects of an acute stressor on fear and on the social reinstatement responses of domestic chicks to cagemates and strangers

Marín, Raúl Héctor; Freytes, Paula; Guzmán, Diego Alberto; Jones, R. B.

doi:10.1016/s0168-1591(00)00167-2

Cited by 105 publications

(72 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In chickens, few similar studies on recovery from acute stressors have been performed, but one study on broilers observed similar sustained effects of restraint [32]. RJF has previously been shown to have stronger general fear reactions compared to WL [13], and WL has a less active response during restraint as well as a less severe response to a predator model [15].…”

Section: Discussionmentioning

confidence: 99%

“…Some acute events, in addition to physical restraint, have been shown to induce a stress response in chickens, for example heat stress [27][28][29] and unpredictable light regimes [30]. Restraint stress however is a well-established method for triggering a stress response in chickens (see for example [29,31,32] ) where also the HPA-axis recovery has been investigated [31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Domestication effects on behavioural and hormonal responses to acute stress in chickens

Ericsson

Fallahsharoudi

Bergquist

et al. 2014

Physiology & Behavior

View full text Add to dashboard Cite

Comparative studies have shown that alterations in physiology, morphology and behaviour have arisen due to the domestication. A driving factor behind many of the changes could be a shift in stress responses, with modified endocrine and behavioural profiles. In the present study we compared two breeds of chicken (Gallus gallus), the domestic White Leghorn (WL) egg laying breed and its ancestor, the Red Junglefowl (RJF). Birds were exposed to an acute stress event, invoked by three or ten minutes of physical restraint. They were then continuously monitored for the effects on a wide range of behaviours during a 60 min recovery phase. Blood samples were collected from the chicken at baseline, and after 10 and 60 min following a similar restraint stress, and the samples were analyzed for nine endogenous steroids of the HPA and HPG axis. Concentration of the steroids was determined using validated liquid chromatography tandem mass spectrometry methods. In RJF, an immediate behavioural response was observed after release from restraint in several behaviours, with a relatively fast return to baseline within one hour. In WL, some behaviours were affected for a longer period of time, and others not at all. Concentrations of corticosterone increased more in RJF, but returned faster to baseline compared to WL. A range of baseline levels for HPG-related steroids differed between the breeds, and they were generally more affected by the stress in WL than in RJF. In conclusion, RJF reacted stronger both behaviourally and physiologically to the restraint stress, but also recovered faster. This would appear to be adaptive under natural conditions, whereas the stress recovery of domesticated birds has been altered by domestication and breeding for increased reproductive output.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Domestication effects on behavioural and hormonal responses to acute stress in chickens

Ericsson

Fallahsharoudi

Bergquist

et al. 2014

Physiology & Behavior

View full text Add to dashboard Cite

show abstract

“…O regime de confinamento causa estresse intenso (Jones & Mills, 1999), tendo como conseqüência respostas fisiológicas e comportamentais (Marin et al, 2001) que podem causar sérios problemas à saúde e bem-estar dos animais (Abeyesinghe et al, 2001;Hall, 2001;Mendl, 1999). Por estes motivos o sistema de criação semi-intensivo é considerado como uma alternativa.…”

Section: Introductionunclassified

“…Estudos que vêm sendo realizados na área de genética tentam desenvolver aves com melhor adaptabilidade, visando a melhora dos índices zootécnicos da criação (Ferrante et al, 2001;Marin et al, 2001;Silva et al, 2001).…”

Section: Introductionunclassified

Influência do sistema de criação sobre o desempenho, a condição fisiológica e o comportamento de linhagens de frangos para corte

et al. 2003

View full text Add to dashboard Cite

RESUMO -Realizou-se o presente trabalho com o intuito de avaliar a influência do sistema de criação (intensivo e semi-intensivo) no desempenho (peso corporal e conversão alimentar), na condição fisiológica sob estresse térmico (temperatura retal, freqüência respiratória e hematócrito) e comportamento (freqüência ao pasto) de frangos de corte. Foram utilizadas quatro linhagens de frangos de corte, duas tipo caipira e duas comerciais. Para avaliação do desempenho e condição fisiológica das aves nas idades de 45, 55, 65 e 75 dias, instalou-se um experimento no qual as aves foram alojadas em boxes constituídos de 4,5 m 2 de área interna (abrigo) e 35 m 2 de área de pastejo com lotação de 35 aves/box. Outro experimento foi instalado para avaliação da freqüência das aves ao pasto entre o 35 o e 75 o dia de idade. Uma das linhagens avaliadas não demonstrou ser adaptada ao sistema semi-intensivo de criação. Verificaram-se diferenças significativas nos parâmetros de desempenho e de condição fisiológica das aves nos dois sistemas. Na criação semi-intensiva obtiveramse menores valores para temperatura retal, taxa respiratória e hematócrito e melhores valores de peso corporal e conversão alimentar. Concluiu-se que a criação semi-intensiva proporcionou condições que aumentaram o bem-estar das aves, tendo influenciado positivamente o desempenho e a condição fisiológica das linhagens avaliadas, mesmo sob condições de estresse térmico.Palavras-chave: adaptação, bem-estar, comportamento, sistema semi-intensivo Influence of the Rearing System on Performance, Physiological Condition and Behaviour of Broilers LinesABSTRACT -The objectives of this research were to evaluate the influence of rearing systems (intensive or semi-intensive) on the performance (body weight and feed efficiency), chicken physiological condition under heat stress (rectal temperature, respiratory frequency and hematocrit) and behavioural parameters (frequency in the pasture areas) of broilers lines. To evaluate broiler's performance and physiological condition on the ages of 45, 55, 65 and 75 days one experiment was carried out in boxes with 4,5 m 2 of inside area and 35 m 2 of outside area were 35 broilers were reared in each box. Another experiment was carried out to evaluate the frequency of broilers it the pasture areas from 35 to 75 days of age. One of the evaluated lines did not show adaptation to the semi-intensive rearing system. Significant differences were found in broilers performance and physiological conditions in both systems. In the semi-intensive rearing system the rectal temperature, respiratory frequency, hematocrit and feed efficiency were smaller and body weight larger than in the intensive rearing system. It was concluded that the semi-intensive rearing system provided conditions that increased broilers welfare and positively influenced the physiological conditions and performance of the broilers.

show abstract

“…Consumers increasingly prefer chicken products from a free-range system because of animal welfare and food safety concerns, as well as due to the perceived nutrition and flavor of the meat. Studies comparing different rearing systems have shown that conventional caging systems place social and biological pressure on the chicken (Jones and Mills, 1999), resulting in physiological and behavioral disorders (Marin et al, 2001) and reduced performance (Mendl, 1999). An outdoor, confinement-free system might prevent stress, enhance comfort and bird welfare, reduce abdominal fat (Wang et al, 2009a), and enhance meat flavor (Fanatico et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Confined housing system increased abdominal and subcutaneous fat deposition and gene expressions of carbohydrate response element-binding protein and sterol regulatory element-binding protein 1 in chicken

Zhao

Gilbert

et al. 2015

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Free-range production system is increasingly being used in poultry breeding and feed production in many countries. The objective of the current experiment was to evaluate the effects of different raising systems on fat-related traits and mRNA levels of liver lipogenesis genes in Erlang Mountainous chicken. Each of 10 birds (91 day old) from caged, indoor-floor housed, and free-range housing systems was slaughtered, and fat-related traits, live body weight (BW), subcutaneous fat thickness (SFT), abdominal fat weight (AFW), abdominal fat percentage (AFP), and intramuscular fat content were determined. The mRNA levels of liver X receptor α, carbohydrate response element-binding protein (ChREBP), sterol regulatory element-binding protein-1 (SREBP1), and fatty acid synthase were detected. The caged chicken exhibited significantly higher BW, SFT, and AFW than those of free-ranged chicken (P < 0.05). All the 4 genes had a similar expression pattern, and they showed the highest level in caged chicken, while the lowest level was found in free-ranged chicken. Association analysis indicated that there were significant (P < 0.05) or highly significant (P < 0.01) positive correlations between the mRNA levels of ChREBP, SREBP1, and fat traits of SFT, AFW, and AFP. Thus, we deduced that increased fat deposition in caged chicken was probably induced by increased gene expression of ChREBP and SREBP1 in the liver.

show abstract

Effects of an acute stressor on fear and on the social reinstatement responses of domestic chicks to cagemates and strangers

Cited by 105 publications

References 27 publications

Domestication effects on behavioural and hormonal responses to acute stress in chickens

Domestication effects on behavioural and hormonal responses to acute stress in chickens

Influência do sistema de criação sobre o desempenho, a condição fisiológica e o comportamento de linhagens de frangos para corte

Confined housing system increased abdominal and subcutaneous fat deposition and gene expressions of carbohydrate response element-binding protein and sterol regulatory element-binding protein 1 in chicken

Contact Info

Product

Resources

About