OBJECTIVES To revise the estimates of maternal age specific live birth prevalence of Down's syndrome in the absence of antenatal screening and selective termination using newly available data. SETTING AND DESIGN Data were used from the National Down Syndrome Cytogenetic Register (NDSCR), which contains information on nearly all antenatally or postnatally diagnosed cases of Down's syndrome in ...

Angiopoietin-like protein 4 (ANGPTL4) is expressed in bovine ruminal epithelium, making it possible that dietary components or commensal microbes may influence gastrointestinal ANGPTL4 production via interactions at the mucosal surface. Therefore, we conducted 3 experiments to evaluate the effects of dietary concentrate level and VFA infusions on ANGPTL4 abundance in ruminal tissue. In Exp. 1, ...

Two experiments were conducted to investigate the relationships between amino acids and DE for pigs weighing 20 to 50 kg. In Exp. 1, there were three dietary lysine levels that were either adjusted (1.50, 2.35 and 3.20 g/Mcal DE) for five DE levels (3.00 to 4.00 Mcal/kg) or unadjusted (.45, .71 and .96% of the diet) for three DE levels (3.50 to 4.00 Mcal/kg). In Exp. 2, diets containing six lys...

A series of 3 experiments were conducted to determine the in vitro and in situ disappearance, preference, and performance of steers consuming increasing concentrations of a novel feedstuff called algae meal (ALG). In Exp. 1 and 2, 3 ruminally cannulated steers (998 ± 103 kg BW) and 4 treatments were utilized: a dry-rolled corn-based diet (CON), or 15% ALG (A15), 30% ALG (A30), or 45% ALG (A45) ...

A new monoclinic polymorph of the title compound, C(8)H(12)N(4), in the space group P2(1)/n (Z = 4) is reported. The previously known form was also monoclinic, P2(1)/c (Z = 4), but the unit-cell parameters and crystal packing were different [Shoja & Saba (1993 ▶). Acta Cryst. C49, 354-355]. The hexa-hydro-pyrimidine ring of the title compound adopts a chair conformation with a diequatorial subs...