Consulta: creatorFacets:"Díaz,R."
Registros recuperados: 2
Data/hora: 15/06/2024 09:36:39

Artificial cooling as an alternative to increase productivity and welfare of steers under heat stress
Provedor de dados: 45
Autores: Correa-Calderón,A.; Morales,M.; Avendaño,L.; Leyva,C.; Rivera,F.; Díaz,R.; Soto-Navarro,S.
The effects of a cooling system on productive efficiency and welfare of Holstein steers were evaluated during the summer. Sixty steers in the finishing phase were randomly allotted to one of two treatment-groups. Animals of control group were only provided with shade (non-cooled group) and a group of animals under a cooling system were installed in the shaded area (cooled group), which were operated daily from 09am to 6pm during the 69d of the study. The averages of environmental temperature and relative humidity were 35.4°C and 35.3%, respectively, with a temperature-humidity index average of 81.4 during the study. Individual body weight was recorded every two weeks, while body surface temperature and respiratory frequency were recorded three times per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Steer; Cooling system; Feedlot; Heat stress; Performance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500024

Mycelial growth of strains of Pleurotus ostreatus developed on agar and its correlation with the productivity in pilot production farm
Provedor de dados: 58
Autores: Sastre-Ahuatzi,M.; Téllez-Téllez,M.; Díaz-Godínez,G.; Montiel-González,A.M.; Díaz,R.; Sánchez,C.
Radial growth rate, intracellular laccases and proteases activities, and protein content were evaluated in five strains of Pleurotus ostreatus, grown on starch-based and glucose-based agar media containing different concentrations of the glucose analogue 2-deoxyglucose (2-DG). Productivity of the strains in pilot scale cultivation was also determined. The mycelium of four strains had approximately between 0.6- to 3-fold higher protein content when grown on glucose medium containing 0.01 g/L of 2-DG than when grown on glucose medium. The radial growth rate and intracellular laccases activity of some strains showed a positive and a negative correlation with the productivity, respectively. These results suggest that the strains with high radial growth rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pleurotus ostreatus; 2-deoxyglucose; Laccases activity; Proteases activity; Mushroom production.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300035