The allocation of important but environmentally limited nutrients, such as carotenoids, often represents a trade-off between homeostasis and reproduction. However, key questions remain about how diet and species traits influence carotenoid allocation. We studied yolk carotenoid profiles and yolk color in relation to trophic level (based on delta(15)N values) in five species of seabirds belongin...

The objective of this study was to evaluate whether probiotic supplementation laying hens can improve the quality eggs during storage. trial developed in a commercial farm, which light-weight (36 weeks old) housed cages were randomly selected for one two different treatments: control group fed non-supplemented diets, or birds with diets supplemented 50 g/ton probiotics. lasted 84 days, comprisi...

Mayonnaise is an oil in water (O/W) emulsion despite containing 70–80% fat and egg yolk. The addition of extract ginger var. Rubrum serves as ingredient that able to cover the characteristic mayonnaise red palm taste aroma also contains high antioxidants. aim was find best with according SNI. experimental arranged a completely randomized design (CRD) 3 treatments replicated times then continued...

This study was conducted to examine the effect of feeding genetically modified organisms (GMO) compared with non - GMO diet on performance layers in terms egg production, broken rate and quality laying hen. One hundred ninety-two Hy-line brown hens were used for four weeks. All birds randomly assigned into two dietary treatments groups, each eight replicates (12 hens/ replicate). Significant di...

This study aimed at evaluating the effect of dietary calcium levels and the replacement of calcium sources with different particle size compositions on the performance and egg quality of brown layers in their second egg production cycle. A randomized block experimental design was applied with 12 treatments in a 3x4 factorial arrangement: three calcium levels (2.6, 3.2, 3.8 %) and four combinati...

This study was conducted to determine the effects of dietary supplementation olive leaf extract (OLE), eggshell with membrane (ESM), and ESM that absorbed OLE (OLE+ESM) on performance, egg quality, biochemical, bone parameters in laying Japanese quail. A total 112 quail, being 45-day-old, were divided into 4 groups replicates. The quail fed four diets: i) basal diet ii) supplemented 400 ppm iii...

This paper describes morphological characteristics of the ovarian germinative cells of the Scinax fuscovarius (Lutz, 1925). The ovary is organized in primordial germinative cells (oogonia) and follicular structures (ovarian follicle) – oocytes surrounded by follicular cells. Oogonia: their nests are peripherically localized, containing cells with large and oval nucleus. Oocytes I: basophilic cy...

Embryonic development and morphological characteristics of Japanese devil stinger Inimicus japonicus during early life stage were investigated. Larvae were hatched out 50 h after fertilization at temperature 21°C. Total length of the newly hatched larva was 4.03 mm, the mouth of the larva opened at 3 days after hatching (DAH), and the yolk sac of the larva disappeared at 5 DAH. After hatching, ...