genetic parameters and trends for milk and fat yields as well as for fat percentage were estimated from 35,438 milk production records (305d, 2x) of 17,971 holstein dairy cattle in 133 herds during the period of 1990-2003 in khorasan province. variance components were estimated using restricted maximum likelihood statistical method applying univariate and repeatability animal models. for the un...

AIMS The aim was to develop a theory-based population pharmacokinetic model of tacrolimus in adult kidney transplant recipients and to externally evaluate this model and two previous empirical models. METHODS Data were obtained from 242 patients with 3100 tacrolimus whole blood concentrations. External evaluation was performed by examining model predictive performance using Bayesian forecasti...

Using an analytical mathematical model, we studied and contrasted the effects of variations in geometry and volume conductor properties of the torso on epicardial and body surface potentials. The model consists of a spherical heart (blood cavity bounded by a spherical muscle shell that includes a double layer source, and pericardium) eccentrically placed in a spherical torso flung region bounde...

To assess regression models for lipid and lean body mass in small birds, we recorded live body mass 90.1 g, total body electrical conductivity (TOBEC; from ‘‘third generation’’ TOBEC machine EM-SCAN† SA-3000) or E-Value, visual fat score (VisFat), and seven body measurements for 52 migratory passerine birds of 13 species (5 40 g). We determined lipid and lean mass of each bird after petroleum-e...

Carcasses from 59 steers produced from the mating of Braford, Simbrah, Senepol, and Simmental bulls to Brahman- and Romana Red-sired cows and Brahman bulls mated to Angus cows were used in this study. Effects of sire breed and feeding calves vs yearlings on fat depots in the chuck, when steers were fed to 1.0 cm external fat, were determined. Breed of sire and feeding calves vs yearlings had no...

Epicardial adipose tissue is a visceral fat originated from splanchnophrenic mesothelial cells and has same origin with mesenteric and omental fat. It is located between the parietal and visceral pericardium. Although paracardial fat on external surface of the parietal pericardium is located very close to the epicardial fat, it’s origin-the primitive thoracic mesenchyme, is different from epica...

In the present study, the effect of tail fat on recovery times in intact sheep and sheep with a ligated median sacral artery following similar anesthetic exposure with isoflurane was investigated. This study was performed using seven healthy fat-tailed Iranian Lori-Bakhtiyari ewe lambs. The lambs were anesthetized twice at two week intervals (the experiment was performed in two stages). After m...