The effbets of galaetooligosaccharides (GOS), a mixture of galactosyl oligosaccharides formed from lactose by the transgalactosyl reaction of fi-D-galactosidase deriyed from Bacitlas circulans, on calcium absorption and preyention of bone loss were examined in oyariectomized (OYX) Wistar rats. Rats fbd on a diet containing GOS abserbed calcium more eMciently than those on the control diet after...

The study was designed to compare the growth performance, digestibility and concentration of phosphorous (P) and calcium (Ca) in blood plasma, tibia bone and excreta in juvenile birds fed different commercially available sources of inorganic P. Day-old Hubbard broiler chickens (180) were randomly assigned to one of 4 dietary treatments (A-D), replicated three times with 15 birds per cage. All d...

There is considerable data on the effect of reducing inorganic Ca and P in broiler finisher diets on carcass quality. However, there is limited information on the effect of reducing dietary Ca and P during the different phases of growout. Two experiments were conducted from 0 to 35 d in floor pens. In both experiments, at least 4 replicates per treatment (50 chicks per replicate) were used. Cor...

The aim of this study was to develop a quantitative radiographic method for assessment of experimentalosteoporosis in Leghorn breed laying hens. Three groups of 24 Leghorn pullets were reared in cage and fed aration containing different calcium levels, including 3.55, 2.075 and 0.6 percent (for groups 1-3, respectively). The hens were fed this diet from 17 weeks of age to the end of the experim...

This study was aimed to determine chemical and physical characteristics of extracted tilapia fish bone gelatin using acid (HCl) alkaline (NaOH) solutions. The research method used comparative experimental with Paired t-test consisting 2 treatments, namely 4% HCl NaOH 3 replications. Analysis parameters consisted yield, gel strength, viscosity, pH, moisture content, ash. Characteristics solution...

Fourteen Angus heifers (210 +/- 6 kg initial BW) were allotted randomly to either a low P (LP: .12% P, DM basis) or an adequate P (AP: .20% P, DM basis) diet fed for 14 to 16 mo under drylot conditions on concrete floors to determine the influence of dietary P on chemical, physical, and mechanical properties of bone. Three weeks postpartum, after 14 to 16 mo on their diets, heifers were slaught...

Onion and its flavonoid component, quercetin, increase bone density in rabbits, rodents, and humans. The purpose of this study was to determine whether there is a similar effect of onion on laying hens. Thirty-two Hy-line W36 White Leghorn hens at 30 weeks of age were randomly divided into 2 groups, i.e., control and treatment (n = 16). The hens were kept at 2-hen cages, each cage providing 658...

Recent studies of mechanical properties of cortical bone in osteoporotic and aged skeletons reveal significant reductions in toughness or energy absorption -a hallmark of post-yield behavior (McCalden et al., 1993). Variations in mineral content (% ash), porosity, or secondary osteon population density (OPD), however, can not explain a large percentage of the variance in these mechanical test d...

I . In two experiments with chicks given diets of different manganese content, the effects of vitamin D on the Mn contents of bone and liver and on the retention of 54Mn in bone, liver and the whole body were determined. 2. Vitamin D slightly increased the Mn content of dry fat-free bone but the proportion of Mn to ash remained unchanged and the Mn content of bone was influenced much more by th...