Now showing items 1-10 of 96
Influence of early quantitative food restriction on long bone growth at different environmental temperatures in broiler chickens
(British Poultry Science, 2000-09-01) [Artigo]
1. This investigation was carried out to study the influence of early quantitative food restriction (40% of ad libitum intake from 7 to 14 d of age) and environmental rearing temperature (thermoneutral, cold and hot) on ...
Observations on the development of the febrile response to pyrogen in newborn pigs
(Biology of the Neonate, 1985-12-01) [Artigo]
The febrile response of newborn pigs to exogenous pyrogen injection was investigated. Lipopolysacharides (LPS, E coli) were injected intravenously into the superior vena cava of 1-30-day-old piglets. All the experiments ...
Reduced hyperthermia in chicks
(Comparative Biochemistry and Physiology A-molecular & Integrative Physiology, 2007-08-01) [Resumo]
Performance and intestinal mucosa development of broiler chickens fed diets containing Saccharomyces cerevisiae cell wall
(Journal of Applied Poultry Research, 2001-09-01) [Artigo]
Use of antibiotics as an additive in poultry diets to improve growth has been discussed in relation to bacterial resistance and the development of new products and management practices. This study was carried out to test ...
Hepatic concentration of heat shock protein 70 kD (Hsp70) in broilers subjected to different thermal treatments
(British Poultry Science, 1999-05-01) [Artigo]
1. The relationship between repeated thermal treatments and hepatic synthesis of Hsp 70 was studied in broiler chickens.2. Sixty broilers were submitted to 5 different treatments (12 birds each) from day 1 to day 42. Four ...
Somatotrophic and thyroid hormones around the onset of lay in broiler breeders under different conditions
(Acta Veterinaria Hungarica, 2002-01-01) [Artigo]
Somatotrophic and thyroid hormones were determined around the onset of reproduction in broiler breeders reared in two different housing systems [dark, close-sided house (CH) and conventional, open-sided house (OH)]. In ...
Heat or cold chronic stress affects organ weights and Hsp70 levels in chicken embryos
(Canadian Journal of Animal Science, 2001-03-01) [Artigo]
This study was carried out with the objective of evaluating the effect of heat (38.8 degreesC) or cold (35.8 degreesC) stress on chicken embryo development and tissues Hsp70 levels, after the 13th day of incubation. Embryo ...
Effect of heat stress or lipopolysaccharide (E-coli) injection on HSP70 levels in the liver and brain of adrenalectomized rats
(Journal of Thermal Biology, 1999-10-01) [Artigo]
Hsp70 content (ng Hsp70 mu g total protein(-1)) in the liver and brain of control and adrenalectomized male rats was investigated by Western Blotting after heat stress (40 degrees C) or endotoxin-induced fever (E. coli ...
Environmental temperature and cloacal and surface temperatures of broiler chicks in first week post-hatch
(Journal of Applied Poultry Research, 2000-03-01) [Artigo]
Adequate environmental temperature during the brooding period is very important to future broiler performance. Thus, the objective of this study was to investigate the extent to which environmental temperature affects the ...
Gender and age influence the ventilatory response to hypercapnia in chickens
(FASEB Journal, 2012-04-01) [Resumo]