Physiological and behavioural effects of an intracerebroventricular injection of corticotropin releasing hormone in goats

Aoyama, Masato; Negishi, Akihito; Abe, Akiko; Yokoyama, Rie; Ichimaru, Toru; Sugita, Shoei

doi:10.1016/j.tvjl.2007.04.002

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…The level of COR found in this study corresponds to the values reported previously for different goat breeds, mostly ranging from 3 to 15 ng/ml (Ortiz-de-Montellano et al 2007;Aoyama et al 2008). Cortisol was positively correlated with AT (r ¼ 0.92), whereas T3 and T4 hormones were inversely correlated with AT (À0.55; p < .05).…”

Section: Resultssupporting

confidence: 88%

Effects of the dry and the rainy season on endocrine and physiologic profiles of goats in the Brazilian semi-arid region

Ribeiro

Costa

Filho

et al. 2017

Italian Journal of Animal Science

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This study investigated the effect of season on the endocrine and adaptive profiles of a Brazilian Creole goat population in a semi-arid region of Brazil during the dry and the rainy season. We considered physiological, morphological, biochemical, haematological, hormonal and anatomical profiles. The experiment used 80 adult goats (2-to 5-year-old) and lactating (160 ± 14 days of lactation length) goats, with an average daily milk yield of 500.9 ± 13 g. Physiological parameters (rectal temperature, RT; respiratory rate, RR; heart rate, HR; skin temperature, ST) were high (p < .05) in the afternoon in both seasons. There was a significant effect of season (p < .05) on anatomical parameters (hair diameter, HD; hair length, HL; coat thickness, CT). Haematological, biochemical and hormonal parameters were also significantly affected by season (p < .05). We measured the biochemical and hormonal characteristics changes during different seasons; metabolism was reduced during heat stress and accelerated during cold stress. These hormones facilitate the physiological parameters involved in the adaptation process. Our results confirm that the adaptive capacity of the animals cannot be described solely by RT and RR.ARTICLE HISTORY

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Section: Resultssupporting

confidence: 88%

Effects of the dry and the rainy season on endocrine and physiologic profiles of goats in the Brazilian semi-arid region

Ribeiro

Costa

Filho

et al. 2017

Italian Journal of Animal Science

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“…The cortisol concentrations can vary according to several factors, such as circadian rhythm, season, photoperiod and diet composition. The cortisol level reported in different breeds of goats ranges from 3 to 15 ng/ml (Ortiz-de-Montellano et al 2007, Al-Busaidi et al 2008, Aoyama et al 2008, Ribeiro 2013. In stressed animals, some authors observed cortisol levels between 4.5 and 15.6 ng/ml (Ronchi et al 2001), and values between 21.5 -43.0 ng/ml (Du Preez et al 2000).…”

Section: Cortisolmentioning

confidence: 99%

Physiological and biochemical blood variables of goats subjected to heat stress – a review

Ribeiro

Bozzi

et al. 2018

Journal of Applied Animal Research

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The aim of this review was to understand the role of physiological, hematological, biochemical and hormonal variables of the blood of goats raised in adverse environments. Scientific work in recent years has allowed for the evaluation of how goats of various breeds respond to edaphoclimatic effects to maintain homeothermy according to adaptability to the environment. The exposure of goats to heat stress causes changes in the physiological functions with impact on production and productivity of the animals. There is evidence that the central nervous system is sensitive to temperature changes, and some cells are agiler in the cold than in heat. In conclusion, we say that regardless of the breed, the raising environment and its climatic variables can trigger physiological, biochemical, hematological and hormonal alterations that result in a reduction of the heat production for maintenance of homeothermy. All these changes have a substantial impact on production and productivity.

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“…Cortisol and corticosterone are the endogenous glucocorticoids in humans and rodents, respectively (Terao and Katayama 2016), and the major glucocorticoid hormone in birds is corticosterone (Holmes and Phillips 1976). Cortisol has long been considered to be a reliable physiological measure of the stress response in domestic mammals such as guinea pigs (Kunzl et al 2003), pigs (Turner et al 2005), sheep (Smith and Dobson 2002), goats (Aoyama et al 2008), cows (Christison and Johnson 1972) and horses (Visser et al 2008) and in wild mammals, e.g., Antechinus (Bradley et al 1980), Macaca (Davenport et al 2008), Odocoileius (Millspaugh et al 2002), Peromyscus (Hayssen et al 2002), Procavia , Puma (Bonier et al 2004), Saimiri (Lyons et al 1995) and Spermophilus (Mateo 2008;Delehanty and Boonstra 2009). The stress response in vertebrates, mediated by the HPA axis, involves the release of adrenocorticotrophic hormone (ACTH) into the blood stream, which in turn acts on the adrenal cortex to activate the secretion of glucocorticoids (Tsigos and Chrousos 2002).…”

Section: Stress Hormonesmentioning

confidence: 99%

Analysis of cortisol in dog hair - a potential biomarker of chronic stress: a review

Mesarčová¹,

Kottferová²,

Skurková³

et al. 2017

Vet. Med.

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Cortisol, which is produced in the adrenal glands, is an endogenous glucocorticoid hormone that delivers its hormonal message to cells by acting on glucocorticoid receptors. It is one of the main stress hormones responsible for stress responses in animals and humans, and its overproduction is characteristic of certain diseases. While acute stress disorder can be evaluated by means of measuring the cortisol concentration in blood and urine, chronic stress disorder can be detected by monitoring the cortisol concentration in fur or hair. Hair collection is simple, inexpensive and non-invasive, and can be performed easily and rapidly; thus, it appears to be a suitable method for determining the level of stress in dogs from shelters, abused dogs or dogs involved in different types of animal interactions. Since it is a relatively new method, monitoring cortisol in hair or fur requires further research in order to definitively prove its efficacy, and possibly to determine reference range values for different breeds of dogs.

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Physiological and behavioural effects of an intracerebroventricular injection of corticotropin releasing hormone in goats

Cited by 10 publications

References 34 publications

Effects of the dry and the rainy season on endocrine and physiologic profiles of goats in the Brazilian semi-arid region

Effects of the dry and the rainy season on endocrine and physiologic profiles of goats in the Brazilian semi-arid region

Physiological and biochemical blood variables of goats subjected to heat stress – a review

Analysis of cortisol in dog hair - a potential biomarker of chronic stress: a review

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