Mortality in swine herds is often associated with lameness, and trace minerals are implicated in maintaining integrity of skeletal tissues. The objectives of this study were to determine if prolifi c sows displayed evidence of trace mineral depletion with age and to determine the prevalence of osteochondrosis (OC) lesions. Reduced mineral concentrations with age would support recommendations fo...

Two feeding trials with Hereford X Angus steers were conducted to evaluate effects of dietary Ca level in high concentrate diets on feedlot performance, carcass traits, blood metabolic profile and Ca status. Dietary treatments of .3, .6, .9 and 1.2% Ca (10 steers treatment-1 X trial-1) were fed for 90 (Trial 1) and 114 d (Trial 2). Ground limestone was the source of supplemental Ca. Blood sampl...

In 2 experiments, a total of 184 pigs (PIC, initial BW of 10.3 and 9.7 kg for Exp. 1 and 2, respectively) were used to develop an available P (aP) release curve for commercially available Escherichia coli-derived phytases. In both experiments, pigs were fed a corn-soybean meal basal diet (0.06% aP) and 2 diets with added inorganic P (iP) from monocalcium phosphate (Exp. 1: 0.075 and 0.15% aP; E...

background: exogenous phytase enhances the utilization of plant phytate phosphorus in poultry. objectives: in the present study the effects of exogenous phytase was investigated on tibia bone characteristics of white quail. methods: in a 2x2 factorial arrangement, eighty, 11-day old unsexed chicks were randomly divided into 4 treatments of 20 replicates. all birds received one of four experimen...

Introduction. Genetic factors are generally acknowledged to contribute to skeletal fragility and osteoporotic fracture risk. However, the functional links that characterize how genotype affects phenotype (fracture risk) are not well understood. Previously we demonstrated that differences in femoral stiffness, strength, and brittleness among inbred mouse strains (e.g, A/J, C57BL/6J, C3H/HeJ) at ...

background: medical plants have been recently used to treat diabetes. osteoporosis is one of diabetes side effects and increases the risk of bone fracture in diabetic patient. objectives: the purpose of the present study was to investigate the potential bone protective effects of o.persica ethanolic extract in streptozotocin-induced diabetic rats. methods: forty male rats were randomly divided ...

An experiment was conducted to compare two common methods of estimating bone ash from growing broiler chicks (A = autoclaving; B = boiling/extracting). Ross x Ross 1-d-old broiler chicks were fed a corn-soy, phosphorus-deficient diet (22.7% CP, 1% calcium, 0.22% non-phytate phosphorus), with 0, 750, 1,500, 3,000, or 6,000 units of phytase (FTU) to produce bones with a range of ash. The methods ...

Abstract Pigs [n = 882; initial body weight (BW) of 33.2±0.31 kg] were used to evaluate the effects different bones and analytical methods on assessment bone mineralization response dietary P, phytase, vitamin D in growing-finishing pigs. Pens pigs (20 pigs/pen) completely randomized 5 treatments with 9 pens/treatment. After feeding diets for 112-d, nine pigs/treatment harvested analysis. Treat...

An experiment was conducted to determine the effects of soybean meal (SBM) particle size on broiler performance, particularly P utilization. This experiment utilized a 2 x 2 x 2 factorial design with the following variables: SBM particle size, P level, and diet type, either corn-SBM or semipurified. SBM was obtained from a processing plant before (geometric mean diameter 1,239 microm) and after...