The objective of this study was to develop a simple and economical protocol for separating ovotransferrin from egg white. Egg white was separated from the yolk and diluted with the same volume of distilled water. To prevent denaturation during the separation process, ovotransferrin in 2x-diluted egg white was converted to its holo-form by adding 20 mM FeCl3.6H2O solution (0.25 to 3 mL/100 mL). ...

Low-density lipoprotein (LDL) extracted from hen egg yolk has recently been considered to be superior to whole egg yolk in sperm cryopreservation of various animal species. Meanwhile, there was a notion that high-density lipoprotein (HDL) in egg yolk may have a negative effect on post-thaw survival. The role of LDL and HDL in sperm cryopreservation of rhesus monkeys has not been explored. The p...

The atrial gland of the marine mollusk Aplysia californica is an exocrine organ that expresses at least three genes belonging to the egg-laying hormone (ELH) family. In order to study the post-translational processing of the ELH-related gene products in the atrial gland and how it compares to the bag cells, peptides were isolated from the atrial gland and chemically characterized. The A- and B-...

the use of immunoglobulin y (igy) instead of polyclonal antibodies prepared in mammals has been reported recently. these antibodies are found to have better properties in terms of specificity and ease of large scale production. in this study, proteins from egg yolk were extracted with acid and chloroform. the result of cellulose acetate electrophoresis at ph 9 showed some extra bands which were...

Appreciated for their versatile nutritive value and functional properties, eggs are considered as an important item in human diet. Eggs are one of the most common foods available worldwide as they play an important role in human diet by providing humans with protein, lipids, minerals and vitamins in an adequate amount. Chicken breeds differ in physical and biochemical contents in terms of eggs ...

This study aimed to assess egg laying and egg quality in quail lines in diallel crosses. We evaluated 16 genetic groups obtained from crosses of four strains of meat quails (L1, L2, L3, and L4) in a complete diallel. We assessed weekly egg number (WEN), egg yield (EY), egg weight (EW), and Haugh unit (HU) for: 51-80, 81-110, 111-140, and 51-140 days (whole period) old. The general combining cap...

The present paper was aimed at assessing the benefit of strategic anthelmintic treatments on milk production in four commercial dairy sheep farms in Southern Italy whose animals were naturally infected by gastrointestinal (GI) strongyles and Dicrocoelium dendriticum. The scheme was based on two treatments timed in relationship to parturition, i.e. the first with moxidectin in the periparturient...

A plasticity model with yield surface distortion for non proportional loading. ABSTRACT In order to enhance the modeling of metallic materials behavior in non proportional loadings, a modification of the classical elastic-plastic models including distortion of the yield surface is proposed. The new yield criterion uses the same norm as in the classical von Mises based criteria, and a "distorted...