Some biological aspects of semen were investigated in the Persian sturgeon, Acipenser persicus, by determination of seminal plasma indices (ionic composition and osmolality), sperm density and their relationships with sperm motility. The osmolality of seminal plasma ranged from 42.00 to 111.00 mOsmol Kg-1. The concentrations of Sodium (Na+), Potassium (K+), Chloride (Cl-), Calcium (Ca2+) and Ma...

an experiment was conducted to investigate the effect of thyroid gland activity modulation (hyper or hypothyroidism) on energy utilization in broiler chickens. two hundred and forty one-day-old cobb broiler chicks were distributed into three dietary metabolizable energy (me) treatment groups (80 chicks each). the control group (e0) was fed basal diet (3150 kcal/kg diet), the second group (e1) w...

the concentrations of serum calcitonin', parathormone (pth), amylase, alkaline phosphatase (alkp), calcium and phosphorus were studied in pre-and post-dialysis patients with chronic renal failure. all patients had extremely elevated serum urea and creatinine concentrations with the mean values of143.8 and 10.5 mg/dl respectively. the plasma amylase activity was higher than normal with a me...

sixty eight holstein cows, 38 primiparous and 30 multiparous, were employed in a randomized complete block design to evaluate the effects of 2 diets of varied rumine fermentable carbohydrate sources (corn grain (cg) and wheat grain (wg)) on blood metabolites and hormones during periparturint period. primiparous and multiparous cows were blocked by parity. the cows were fed diets as total mixed ...

Plasma calcium (ionised and total) and albumin concentrations and pH were measured in preterm infants and in healthy adults and patients dependent on respirators. Plasma ionised calcium and total calcium values fell during the first week after birth and subsequently rose. Plasma ionised calcium concentrations in preterm infants were higher than those found in both healthy and sick adults. This ...

Multiple linear regression analysis showed that total calcium was significantly and positively related to albumin, globulin, anion gap, and bicarbonate in plasma from 556 normal postmenopausal women. The residual constant of 1.21 mmol/L approximated the normal mean for ionized calcium in plasma. The coefficients derived from the multiple regression analysis were used to calculate ionized calciu...

Plasma concentration of immunoreactive parathyroid hormone (IPTH) was measured in 18 patients who had been on a hemodialysis program for longer than 6 months. A negative correlation was found between the predialysis plasma concentration of IPTH and the mean concentration of calcium in the dialysate previously used: plasma concentrations of IPTH were higher in patients dialyzed against a calcium...

Chronic renal failure (CRF) is associated with abnormal lipid metabolism and high prevalence of vascular complications. Calcium salts are commonly used in CRF as phosphate binders. Increased calcium intake may also lower plasma cholesterol and beneficially influence vascular tone. Therefore, we investigated the influence of increasing dietary calcium from 0.3% to 3.0% for 8 wk after 5/6 nephrec...

(1) Of 71 infants fed on reconstituted dried or evaporated cow's milk, 31 showed a fall in plasma calcium between the 1st and 6th days of life, whereas in 35 breast-fed infants this occurred in only 5. (2) Those artificially-fed infants who had shown a rise in plasma calcium over this period had significantly lower plasma creatinine values and significantly higher excretion of creatinine than t...

An experiment was conducted to investigate the effect of thyroid gland activity modulation (Hyper or hypothyroidism) on energy utilization in broiler chickens. Two hundred and forty one-day-old Cobb broiler chicks were distributed into three dietary metabolizable energy (ME) treatment groups (80 chicks each). The control group (E0) was fed basal diet (3150 kcal/kg diet), the second group (E1) w...