In the present study, some population characteristics of Rapa Sea snail (Rapana venosa) samples collected from coastal zone Eastern Black were investigated. For this purpose, whelk by snorkeling depths ∼7-13 m in Çamburnu Bay (Trabzon) year 2020. Morphometric measurements such as shell size (shell length and width) operculum (aperture well total body weight measured using a caliper with an accu...

The surface area of the avian egg through which the developing embryo must exchange heat, metabolic gases, and water vapor is a variable of prime importance for quantitation of the permeability of the egg shell to these substances. Surface-area measurements are necessary if one is to compare the permeability properties of shells ranging in size from less than 0.5 g in hummingbirds, to 1.5 kg in...

A total of 300 Mytella strigata were collected at three sampling points in the mussel coastal demonstration farm Sasmuan, Pampanga, and subjected to morphometric gravimetric measurements for evaluation its growth pattern condition index. Designated sites based on distances river mouth (200 m, 400 600 m) with varying water quality parameters (temperature, salinity, pH, velocity, chlorophyll-a). ...

the aim of this study was to develop a diet suitable for obtaining quail eggs enriched with omega-3 fatty acids with minimum disadvantages on egg quality. this 12 weeks study was performed to investigate the effects of fish oil (fo) and savory (satureja khuzestanica) essential oil (eo) supplementation in diets of laying quails at different ages, on their performance, egg quality, fatty acid com...

An optimal design of internal pressurized stiffened conical shell is investigated using the genetic algorithm (GA) to minimize the structural weight and to prevent various types of stress and buckling failures. Axial compressive load is applied to the shell. Five stress and buckling failures as constraints are taken into account. Using the discrete elements method as well as the energy method, ...

The present study was conducted to determine egg production traits and egg quality characteristics in black and brown lines of Japanese quail. A total of 500 quails comprising 400 females and 100 males obtained from two breeding centers were raised according to the standard procedure for Japanese quail. They were grouped in according to their plumage colours. Age at first egg-laying has been re...

The times of oviposition are affected little by the use of a night lighting program. Egg shell weight is not changed by the time of oviposition. Egg weight, shell percentage and it's color vary according to the time of oviposition. The egg characteristics have not been affected by the use of night lighting. Night lighting reduces the percentage of eggs downgraded, in particular reducing by 37 %...

In this study, we investigated whether the mathematical formulas, which generally reveal external quality characteristics of living organisms, yield correct results in goose eggs. For purpose, three genotypes and 555 eggs were studied that grouped into Native (n = 356), Chinese 163) Linda 36), raised Aksaray province. The averages Native, geese 5.43, 5.38 5.7 cm, respectively, breadth; 8.12, 8....

Background & Aims of the Study: Natural organic matters (NOMs) are a mixture of chemically complex polyelectrolytes produced mainly from the decomposition of plant and animal residues that are present in all surface and groundwater resources. This paper evaluates the aqueous NOMs adsorption efficiency on walnut shell modified with Zinc Oxide (ZnO). Materials & Methods: This stud...

Conventional steam activation pyrolysis of waste materials such as oil palm kernel shell for production of biochar was investigated using central composite design. Conventional steam activation was carried out via an initial carbonization of oil palm kernel shell to obtain biochar and thereafter steam activation of the biochar using the conventional heating to produce activated carbon. Addition...