the potential of vis-ir (400–1100 nm) transmittance method to assess the internal quality (freshness) of intact chicken egg during storage at a temperature of 307 oc and 25% 4 relative humidity was investigated. one hundred chicken egg samples were used for measuring its freshness and spectral collection during egg storage times (up to 30 days). two correlation models between haugh unit (hu) an...

In vitro cultivation of digeneans would aid the development of effective treatments and studies of the biology of the parasites. The goal of this study was to optimize culture conditions for the trematode, Gynaecotyla adunca. Metacercariae of the parasite from fiddler crabs, Uca pugnax, excysted in trypsin, were incubated overnight to permit fertilization, and were cultured in different conditi...

Kefelegn Kebede, Ashenafi Getachew and Mengistu Urge Two exotic chicken breeds, namely Fayoumi, Koekoek were used in this study to unfold the interdependence among egg quality traits also predict weight from their orthogonal applying principal component regression.

The female reproductive tract is commonly referred to as oviduct in birds. The oviduct is a highly convoluted muscular duct, concerned with the transport of the ovum away from the ovary, with fertilization of the ovum and by the deposition of albumen, membranes and shell on to the ovum to form the finished egg [1]. Reproductive diseases in poultry causes high morbidity (35%), mortality (15%) an...

Chicken egg yolk immunoglobulins (IgY) from immunized hens have considerable advantages for the production of polyclonal antibodies. It reacts with more epitopes and avoids the interference in immunological assays. Regarding the IgY aptitudes, this study was conducted to produce chicken IgY specific for influenza M2 (M2e) protein. Fusion construct harboring C-terminal of bovine heat shock prote...

Glycosaminoglycans (GAGs) have numerous applications in the fields of pharmaceuticals, cosmetics, nutraceuticals, and foods. GAGs are also critically important in the developmental biology of all multicellular animals. GAGs were isolated from chicken egg components including yolk, thick egg white, thin egg white, membrane, calcified shell matrix supernatant, and shell matrix deposit. Disacchari...

Plant surfaces covered with crystalline epicuticular waxes are known to be anti-adhesive, hardly wettable and preventing insect attachment. But there are insects that are capable of gluing their eggs to these surfaces by means of proteinaceous secretions. In this study, we analysed the bonding region between the eggs of Crioceris asparagi and the plant surface of Asparagus officinalis using lig...

Both chicken meat and egg is excellent foodstuff due to their compositions of amino acids, monoand polyunsaturated fatty acids and vitamins. There is evidence that functional feed ingredients can improve the meat yield and egg quality (Patten and Waldroup, 1988; Izat et al., 1991; Mahfudz et al., 1996). In this study, we examine the effect of feed ingredients such as ethanolic extract of shochu...

Little is known about physiological mechanisms that underlie the cost of reproduction. We tested the hypothesis that stress susceptibility is a cost of reproduction. In one test of our hypothesis, Drosophila melanogaster females were exposed to a juvenile hormone analog (methoprene) to stimulate egg production followed by stress assays. A sterile stock of D. melanogaster was employed as a contr...

The Galβ1-4Gal epitope is rarely found in mammals, and the natural antibody against Galβ1-4Gal is rich in human. In contrast, we have previously demonstrated the presence of Galβ1-4Gal in pigeon and ostrich, and the absence of this epitope in chicken. Here, to further investigate the expression of this glycan among birds, egg white glycoproteins and egg yolk IgG from nine species of birds, name...