AIM The aim was to study the effect of supplementation of lysine producing microbes (LPM) as an in vivo source of lysine on performance and egg quality characters of post-peak layers. MATERIALS AND METHODS BIS (1992) specified diets (except crude protein [CP] and lysine) were prepared using either soybean meal (SBM) or groundnut extractions (GNE) or sunflower extractions (SFE) with 16 and 15%...

This study was conducted to assess the physical and morphological characteristics of fresh, pre-freeze and post-thaw black Bengal buck (Capra hircus) semen processed in Tris-egg yolk-citrate-fructose-glycerol (TEYCFG) extender containing 4 different concentrations (2.5, 5, 7.5 and 10%) of egg-yolk. Ejaculates were collected once a week for eight weeks from six mature bucks (48 ejaculates) using...

This study was conducted to estimate the genetic parameters influencing egg quality in Khorasan Razavi native fowl. (Co)Variance components were estimated by the Bayesian statistical method via Gibbs sampling in GIBBS3F90 software. 1000 eggs (28-29 weeks old) were collected from 775 hens of the ninth generation of Khorasan-Razavi Province native fowl breeding center. External (egg weight,specif...

It is generally accepted that the high buoyancy of pelagic marine eggs is due to substantial influx of water across the cell membrane just before ovulation. Here we further develop the theoretical basis by applying laboratory observations of the various components of the fertilized egg in first-principle equations for egg specific gravity (ρ(egg)) followed by statistical validation. We selected...

H•3⁄4w•No, B. W. 1940. The effect of cold drinking water on chick growth and yolk absorption. Poultry Sci., 19: 201-204. Jm.L, M. A., •ND H•yw•NO, B. W. 1930. Yolk assimilation during the embryonic development of the chick. Poultry Sci., 9: 393-404. ILJ•N, M.D. 1917. Investigations on the development of the hen's egg (in Russian): 1-15. (Petrograd.) P•a•x•R, S. 1929. Effects of early handicaps ...

the present research was designed to examine the genetic analysis of egg weight, egg yolk weight and egg albumen weight of bovan neva black laying hens at 25, 51 and 72 weeks. for this purpose, thirty birds were selected from the layer flock in the babcock university teaching and research farm. they were individually housed in separate labeled battery cage. a total of thirty eggs were collected...

Chicken antibodies have been reported to be an excellent alternative to the mammalian antibodies, especially if the antigen is from mammalians. Because chicken immunoglobulin Y (IgY) does not bind to protein G, in this study a indirect method for the purification of murine immunoglobulin G (IgG) subclass specific egg yolk antibodies is described. After preincubation of the chicken egg antibodie...

an experiment was conducted to evaluate the effect of dietary crude protein and methionine levels on quality and quantity of egg production. fifteen diets formulated with 3 levels of protein (13, 14 and 15%) and 5 levels of methionine (0.25, 0.28, 0.31, 0.34 and 0.37%) and fed to 420 birds in a 3×5 factorial arrangement. each diet was randomly fed to 4 replicates of 7 birds each and fed for 3 p...

The heat resistance and growth possibilities of various members of the Micrococcaceae in egg yolk and egg yolk with added salt were determined. Egg yolk alone protected members of the Micrococcaceae considerably against heat. Whereas in water Staphylococcus aureus S6 had a decimal reduction time (D) value of 66 s at 55 degrees C, its D value in egg yolk at the same temperature was 246 s. In sal...

In recent years, attention has been focussed on the acceptor function of the serine hydroxyl in various enzymes. Acyl or phosphoryl residues appear to link to it in group transfer, and also in the initial phase of ester or peptide hydrolysis (l-4). This has led to a revival of interest in the classical phosphoproteins, vitellic acid and casein, which carry phosphate on the hydroxyl group of ser...