Adaptabilidade climática de caprinos Saanen e Azul no Meio-Norte do Brasil

Rocha, R. R. C.; Costa, Amilton Paulo Raposo; Azevêdo, Danielle Maria Machado Ribeiro; Nascimento, H. T. S. do; Cardoso, F. S.; Muratori, Maria Christina Sanches; Lopes, João Batista

doi:10.1590/s0102-09352009000500020

Cited by 23 publications

(13 citation statements)

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“…The daily variation in rectal temperature can be to ranges 0.3 to 1.9°C (Piccione and Refinetti 2003). In different environmental conditions, the rectal temperature is maintained within the proper range for goats (Rocha et al 2009, Salles et al 2009, Phulia et al 2010, Aiura, Aiura and Silva 2010, Leite et al 2012, Lucena et al 2013, Ribeiro 2013). …”

Section: Physiological Variablesmentioning

confidence: 99%

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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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Section: Physiological Variablesmentioning

confidence: 99%

“…That is, if the animal has a high respiratory rate and excellent efficiency of heat loss to maintain homeothermy, heat stress may not occur (Berbigier and Cabello 1990). Several studies were developed on this issue as those reported by Rocha et al (2009), Leite et al (2012), Lucena et al (2013), Ribeiro (2013).…”

Section: Physiological Variablesmentioning

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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“…Rocha et al (2009), working on the climatic adaptability of Azul goats in Mid-North Brazil, concluded that these animals are well adapted to the tropical climate, managing to keep the rectal temperature and respiratory rate low, with good heatdissipation capacity in this region. Table 6 -Mean frequencies of behavioral categories water consumption and interaction with the drinker of the genetic groups and periods analyzed…”

Section: Discussionmentioning

confidence: 99%

“…However, farming these animals exclusively on pasture compromises the supply and quality of the final product due to the presence of long drought periods in this region and reduced forage available in the pastures for feeding animals (Rocha et al, 2009). Confinement or semi-confinement of native goats have been recommended and performed aiming to meet the requirements for maintenance and production of animals besides reducing the mortality of young animals due to nutritional deficiencies and parasitic infestations.…”

Section: Introductionmentioning

confidence: 99%

Image monitoring on the behavior study of three genetic groups of confined goats

et al. 2014

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-The objective of this study was to analyze the behavior of three genetic groups of confined goats by image monitoring using nine unneutered goats of the Azul, Graúna and Moxotó genotypes. The experimental design was completely randomized, in a 3 × 3 factorial arrangement (genetic groups × periods -morning, afternoon and night), with three replications. Animals were monitored by video cameras placed at the ceiling of each stall for 10 days. There were interaction factors in the frequency of behavioral categories: interaction with the trough, self-cleaning, standing bipedally, social interaction, and other activities. Azul, Graúna and Moxotó native goats kept in the same environment under the same system of containment and feeding show different frequencies and durations in their behaviors, which are influenced by the period of the day.

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“…Among the goats reared in the semiarid north eastern Brazil, Azul, Graúna and Moxotó are the genetic groups highlighted for being highly adapted to the tropical climate, whereas the majority are reared under extensive or semi-intensive systems (Rocha et al, 2009) showing, however, little information about their behaviour once confined. The confinement of these animals has been recommended for presenting benefits and advantages such as increased weight gain, lower mortality, reduced pasture stocking during fodder scarcity, sale date arrangement, and higher gain of final profits and acceleration of capital turnover (Almeida et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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2013

reveto

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The ethogram description of confined goats is an alternative that helps identify animals' behaviour, their main behavior and the importance of developing production systems that provide better welfare conditions. This paper aims to describe the ethogram of three genetic groups of confined goats: Azul, Moxotó and Graúna, through monitoring video images, using 9 animals kept in individual pens, monitored by video cameras mounted on the roof of each pen. As for the design and description of ethogram, 810 hours of video image were recorded and analysed, these being from being nine hours a day periods; three in the morning, afternoon and night. We identified 34 visual behaviours, which were grouped into eight categories according to their functional character: food = 4), social interaction (n = 6), displacement (n = 2), resting (n = 3), grooming (n = 4), neutral position (n = 3), bipedal (n = 5) and other activities (n = 7). In conclusion, behaviors described in the ethogram were similar for all three genetic groups. Goats conduct their daily routine with sequences of behaviour that involve eating (food intake or selection) and resting or ruminating, with social interactions and other activities having happened more frequently in the afternoon and at that time in the afternoon before being provided with food.

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Adaptabilidade climática de caprinos Saanen e Azul no Meio-Norte do Brasil

Cited by 23 publications

References 10 publications

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

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

Image monitoring on the behavior study of three genetic groups of confined goats

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