During development, the chick embryo mobilizes the calcium it needs from two extraembryonic sources, first the yolk and then the eggshell. Since previous studies have strongly suggested that vitamins D and K may regulate chick embryonic calcium metabolism, we have examined here how these vitamins might be involved in regulating the calcium mobilization processes. We used as our experimental sys...

This experiment studied the effect of four calcium (3.0, 3.5, 4.0, and 4.5%) and four available phosphorus levels (0.25, 0.30, 0.35, and 0.40%) in the diet of semi-heavy commercial layers after molting. Hisex Brown layers between 90 and 108 weeks of age were distributed in a completely randomized experimental design with a 4x4 factorial arrangement with 16 treatments of five replicates of eight...

The use of high-quality thermal insulation materials to improve the energy efficiency buildings is strongly increasing. Foam glass, a durable and porous material that resistant almost all substance effects, one best materials. Glass foaming complicated process affected by types agents used in initial composition mixture mode foaming. influence components - glass matrix agent discussed this pape...

Methylene blue staining method was used to distinguish O. viverrini eggs from Haplorchis taichui and Prosthodendrium molenkampi eggs. All eggs were obtained from dissected adult worms, fixed in 10% formalin, and stained with methylene blue prior to light microscopy observation. The distinct musk-melon-like texture of the O. viverini eggshell surface and the thread-like texture of H. taichui egg...

This work describes the hydroxyapatite nanoparticle (HAP) preparation from eggshell waste and their application as an adsorbent for Cephalexin (Ceph) antibiotic removal aqueous solutions. Chemical precipitation with phosphoric acid was used to evaluate feasibility of calcium oxide HAP preparation. The structural properties were characterized by X-ray diffraction, which revealed formation crysta...

Eggshell membrane (ESM) is considered food waste or a by-product of the egg processing industry. It has huge application potential in engineering, nutraceutical, pharmaceutical, and cosmeceutical sectors. Recently, researchers have shown an increased interest ESM hydrolysate (ESMH) from enzymatic hydrolysis biomaterial applications. Nonetheless, there lacking information on characteristics ESMH...

A comparative study of eggshell proteins in lepidoptera. Title A comparative study of eggshell proteins in lepidoptera. Publication Type Journal Article Year of Publication 1972 Authors Paul, M, Kafatos, FC, Regier, JC Journal J Supramol Struct Volume 1 Issue 1 Pagination 60-5 Date Published 1972 ISSN 0091-7419

M. Çabuk, M. Bozkurt, F. Kırkpınar and H. Özkul Department of Poultry Science, Akhisar Vocational School of Celal Bayar University, 45210, Manisa-Turkey Poultry Research Institute, Erbeyli 09600, Aydın-Turkey Department of Animal Science, Agricultural Faculty of Ege University, Bornova 35100, Izmir-Turkey __________________________________________________________________________________________...

Oviparous animals have evolved multiple defenses to prevent microbes from penetrating their eggs and causing embryo mortality. In birds, egg constituents such as lysozyme and antibodies defend against microbial infestation, but eggshell pigments might also impact survival of bacteria. If so, microbes could exert an important selective pressure on the evolution of eggshell coloration. In a previ...