The study was carryout to show the effects of layer age at (30, 34 and 38 weeks), egg storage period (2, 4, 6 days) their interactions on quality traits hy-line eggs. experiment included measurements characteristics in laboratory. Results from this were summarizing as: layers had significant effect (p ≤ 0.05) some eggs such weight, albumin yolk Haugh unit height; Also, unit, height.

  Six different diets including two rainbow trout starters, Gammarus dry powder, shrimp dry powder, egg yolk dry powder and newly hatched Artemia were used in feeding of Caspian Kutum larvae. During a 4-week trial, larvae with a mean weight of 17.5 ± 4.7 mg were fed with three replicates and growth parameters were measured at the end of the experiment. Thirty fish in each experimental unit with...

the study was conducted to evaluate the effects of different dietary oil sources supplementation on laying hens’ performance and fatty acids profile of egg yolks. seventy-two 23-week-old laying hens (tetra-sl) divided into six experimental diets (four replicates and three birds per replication) in a completely randomized design for nine weeks. experimental diets were included: 1) control (no oi...

OBJECTIVE The aim of this study was to investigate the effects of simultaneous supplementation of laying hens with alpha-linolenic acid (ALA) resources (flax, perilla, and Eucommia ulmoides [E. ulmoides] seeds) and eicosapentaenoic acid/docosahexaenoic acid (EPA/DHA) resources (Schizochytrium sp.) on egg quality and n-3 polyunsaturated fatty acids (PUFA) profile. METHODS Dietary treatments we...

This study aimed to determine the effect of african leaf juice (Vernonia amygdalina) supplementation in drinking water on performance and fatty acid profile quail egg yolk. A total 120 eight-week-old Japanese was used this reared for 6 weeks colony cage. Completely randomized design with three treatments five replications were study. The control treatment (without supplementation), 3 ml bird-1 ...

Different animal models have been used to study the effects of prenatal protein undernutrition and the mechanisms by which these occur. In mammals, the maternal diet is manipulated, exerting both direct nutritional and indirect hormonal effects. Chicken embryos develop independent from the hen in the egg. Therefore, in the chicken, the direct effects of protein deficiency by albumen removal ear...

The social environment can have profound effects on an individual's physiology and behaviour and on the transfer of resources to the next generation, with potential consequences for fecundity and reproduction. However, few studies investigate all of these aspects at once. The present study housed female Japanese quail (Coturnix japonica) in pairs or groups to examine the effects on hormone conc...

Biotin-binding protein has been purified 2000-fold from chicken egg yolk with a 1 to 2% yield. The puriflcation includes l-butanol extraction of yolk lipids, phosphocellulose chromatography of water-soluble proteins, affinity binding and elution from biotinylSepharose, and gel filtration chromatography. Since the protein biotin-binding sites are saturated with very tightly bound biotin, a novel...