Now showing items 1-10 of 143
Analysis of the intestinal bacterial microbiota in maize- or sorghum-fed broiler chickens using real-time PCR
(British Poultry Science, 2014-11-02) [Artigo]
1. An experiment was conducted to study the effect of two different diets on zootechnical performance and the major bacterial groups in association with the host mucosa and dispersed in the lumen contents of the small ...
Role of brain nitric oxide in the thermoregulation of broiler chicks
(Comparative Biochemistry and Physiology A-molecular & Integrative Physiology, 2009-10-01) [Artigo]
Nitric oxide (NO) plays a key role in body temperature (Tb) regulation of mammals, acting on the brain to stimulate heat loss. Regarding birds, the putative participation of NO in the maintenance of Tb in thermoneutrality ...
Isolation of Leptospira spp. from a man living in a rural area of the Municipality of Cruz Alta, RS, Brazil
(Ciência Rural, 2015-01-01) [Artigo]
The aim of this study was to describe the isolation of a pathogenic strain of Leptospira interrogans from the urine sample of a male human living in the rural area of the County of Cruz Alta, Rio Grande do Sul. An aliquot ...
Comparison of maximal lactate steady state with V2, V4, individual anaerobic threshold and lactate minimum speed in horses
(Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2014-02-01) [Artigo]
The anaerobic threshold is a physiologic event studied in various species. There are various methods for its assessment, recognized in the human and equine exercise physiology literature, several of these involving the ...
Size-Dependent Selective Mechanisms on Males and Females and the Evolution of Sexual Size Dimorphism in Frogs
(American Naturalist, 2014-12-01) [Artigo]
Sexual size dimorphism (SSD) varies in animals from male biased to female biased. The evolution of SSD is potentially influenced by a number of factors, such as territoriality, fecundity, and temporal breeding patterns ...
Effect of heat exposure on the thermoregulatory responses of selected naked neck chickens
(Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2002-02-01) [Artigo]
Estudaram-se o efeito do estresse térmico sobre a temperatura cloacal, a perda de peso corporal e a expressão da proteína de estresse de 70 kDa (Hsp70) em três genótipos de galinhas de pescoço-pelado. Foram usadas 12 aves ...
Egg traits and physiological neonatal chick parameters from broiler breeder at different ages
(Revista Brasileira de Ciência Avícola, 2004-03-01) [Artigo]
This investigation was carried out to study egg traits (weight, specific gravity and eggshell thickness), and neonatal chick parameters (weight, blood, cardiac and lung parameters) from breeder at different ages. After ...
Polymorphism analysis of the hsp70 stress gene in Broiler chickens (Gallus gallus) of different breeds
(Genetics and Molecular Biology, 2003-01-01) [Artigo]
The promoter region and the beginning of the coding region of the hsp70 stress gene were analysed in broiler chickens of a commercial breed (Hubbard-Pettersen), a breed selected for weight gain (PP1) and a non-selected ...
Abundance of MyoD and myostatin transcripts in chicken embryos submitted to distinct incubation temperatures and timing exposures
(Brazilian Journal of Biology, 2011-05-01) [Artigo]
Role of preoptic opioid receptors in the body temperature reduction during hypoxia
(Brain Research, 2009-08-25) [Artigo]
Evidence indicates that endogenous opioids play a role in body temperature (Tb) regulation in mammals but no data exist about the involvement of the specific opioid receptors, mu, kappa and delta, in the reduction of Tb ...