slugAdaptative thermal traits in farm animals
Journal Title: Journal of Animal Behaviour and Biometeorology - Year 2016, Vol 4, Issue 1
Abstract
Animal welfare is affected by weather conditions that influence on thermal comfort, therefore the aim of this literature review was to assess the influence of environmental factors on physiological variables of animals of zootechnical interest. Livestock production is limited by the animal stress as response to the environment where the individuals are reared. Animal adaptation is related to the individual physiological condition related to its survival zone, which is determined by thermoneutral zone (comfort), hypothermic zone (cold stress) and hyperthermia (heat stress). To assess the animal comfort some variables must be analysed, such as: respiratory rate (RR); sweat rate (SR); rectal temperature (RT); heart rate (HR); air temperature (AT); air humidity (AH); wet-bulb globe temperature index (WBGTI) and radiant thermal charge (RTC). The weather variables influence the animals’ thermoregulation, affect their thermal comfort and decrease their welfare. The adaptation to the weather conditions of the region is one of the factors responsible for the productive capacity of the animal.
Authors and Affiliations
Carlos Syllas Monteiro Luz ▪ Wéverton José Lima Fonseca ▪ Gleissa Mayone Silva Vogado ▪ Wéverson Lima Fonseca ▪ Marcelo Richelly Alves de Oliveira ▪ Gioto Ghiarone Terto e Sousa ▪ Leonardo Atta Farias ▪ Severino Cavalcante de Sousa Júnior
slugClimate zone influences the effect of temperature on the day of artificial insemination on fertility in two Iberian sheep breeds
The aim of this study was to determine the effect of temperature on the day of artificial insemination (AI) on fertility, and to study how climate zone of the farm may modify this effect, in two breeds of sheep that a...
slugDeveloping an early warning system for heat stress in cattle
Purpose of this study was to develop an early warning system for heat stress in cattle. For this purpose, total of 8 lactating cattle (4 Holstein of which 2 high and 2 low producing, 4 Brown Swiss of which 2 high and...
slugGeoclimatic evaluation of the Northeast Region of Brazil and its suitability for breeding beef cattle
Aiming to evaluate the climatic diversity among the states located in the Northeast Region of Brazil and their adequacy for beef cattle production, the altitude, rainfall, average annual temperature, relative humidity...
slugGently handled foals generalize responses to humans
Equines perform tasks along humans, and there are evidences and controversies that they are able to discriminate between familiar and unfamiliar humans. This study assessed whether foals can discriminate between human...
slugSexually inexperienced anestrous goats are able to exhibit sexual behaviours exposed to sexually active bucks
The aim of this study was to determine whether sexually inexperienced females could display proceptivity and receptivity behaviours as the experienced, in the first exposure to males. Three groups of females (n=9 each...