Thermoneutrality
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. INGESTIVE BEHAVIOR OF SANTA INÊS SHEEP UNDER THERMONEUTRALITY AND THERMAL STRESS UPON CONSUMPTION OF SALINE WATER
ABSTRACT The consumption of saline water in semiarid regions is a recurrent situation that can affect the ingestive behavior of small ruminants. This study evaluated the ingestive behavior of Santa Inês sheep maintained in a climatic chamber under two air temperatures -25 °C within the thermal comfort zone (TCZ) and 32 °C above the TCZ - and consuming wat
Eng. Agríc.. Publicado em: 2021-02
-
2. USING SOUNDS PRODUCED BY PIGS TO IDENTIFY THERMONEUTRALITY ZONES FOR THERMAL ENVIRONMENT ASSESSMENT RATIOS
ABSTRACT Although dry bulb temperature (T) is the environmental variable most commonly used to classify thermal comfort in pigs, environmental assessment ratios provide more accurate information. The objective of this study was to correlate the sound pressure levels (SPL) produced by piglet vocalization with the thermal environment observed during the nurser
Eng. Agríc.. Publicado em: 2020-06
-
3. Fósforo disponível em ração para frangos de corte dos 8 aos 21 dias de idade mantidos na termoneutralidade utilizando duas metodologias / Available phosphorus forbroiler chickens from 8 to21 days of age maintained at thermoneutrality using two methodologies
Two experiments were conducted to determine the nutritional requirement of available phosphorus (aP) for broilers, from 8 to 21 days old. Were used 896 chickens, Cobb, kept in a thermoneutral environment, with an average temperature of 28.92 0.86 C and calculated WBGT of 78.08 0.47 and 27.05 0,61 C and 75.74 0.53 for WBGT, respectively, for phases 8 to 15 an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/07/2011
-
4. Performance and carcass characteristics of broiler chickens with different growth potential and submitted to heat stress
In order to evaluate the effects of broiler genotype and of heat exposure on performance, carcass characteristics, and protein and fat accretion, six hundred one-day-old male broilers were randomly assigned in a 2 x 3 factorial arrangement, according to the following factors: genetic group (selected and non-selected broilers) and pair-feeding scheme (Ad32 -
Revista Brasileira de Ciência Avícola. Publicado em: 2007-09
-
5. Effects of the adiabatic evaporative cooling system in free-stall on the production, physiological, behavior on the occurrence of mastitis in dairy cows. / Efeitos do sistema de resfriamento adiabático evaporativo em free-stall sobre a produção, fisiologia, comportamento e ocorrência de mastite em vacas em lactação.
The purpose of this research was to compare the efficiency of three different schedule for using an adiabatic evaporative cooling with misting system (AEC) in a free-stall and its influence on the occurrence of clinical and sub clinical mastitis, as well as, on the physiological and milk production parameters on lactating cows. A total of 28 Brown Swiss and
Publicado em: 2005
-
6. Brain and hepatic Hsp70 protein levels in heat-acclimated broiler chickens during heat stress
In the present study we have investigated the effects of heat acclimation on brain and hepatic Hsp70 protein levels and body temperature of broiler chickens in response to gradual heat stress. Two groups of broilers were raised up to 47 days of age under distinct temperature conditions: thermoneutral (TN, according to bird age) or hot environmental (HS, 31-3
Revista Brasileira de Ciência Avícola. Publicado em: 2004-12
-
7. Paternal versus maternal transmission of a stimulatory G-protein α subunit knockout produces opposite effects on energy metabolism
Heterozygous disruption of Gnas, the gene encoding the stimulatory G-protein α subunit (Gsα), leads to distinct phenotypes depending on whether the maternal (m–/+) or paternal (+/p–) allele is disrupted. Gsα is imprinted, with the maternal allele preferentially expressed in adipose tissue. Hence, expression is decreased in m–/+ mice but normal in +/
American Society for Clinical Investigation.
-
8. How much wrapping do babies need at night?
In a longitudinal, population based study, overnight temperature recordings were made in the bedrooms of 152 babies aged 3-18 weeks and the insulation provided by their bedclothing was assessed. Outdoor temperatures for the study nights were also available. Parents applied more insulation on colder nights with lower bedroom temperatures than on warmer nights
-
9. Multilocular adipocytes from muscovy ducklings differentiated in response to cold acclimation.
Morphological and functional aspects of adipose tissue from 6-week-old cold-acclimated muscovy ducklings reared at 4 degrees C ambient temperature (Ta) from the age of 1 week were examined for the occurrence of brown adipose tissue (b.a.t.) in order to explain non-shivering thermogenesis (n.s.t.) observed at this age. Metabolic rate and integrated muscle ele
-
10. Effect of ambient temperature on metabolic rate after thermal injury.
OBJECTIVE: The authors describe the effect of ambient temperature on metabolic rate after thermal injury. SUMMARY BACKGROUND DATA: Thermal injury induces a hypermetabolic state, which is reported to increase with the extent of burn. The magnitude of this response is further influenced by ambient temperature. METHODS: The resting energy expenditure was measur