The objective of this observational field study was to investigate the effect of an alternative intermittent lighting program (13L: 5D: 1L: 5D – Trt) vs. standard lighting program (16L: 8D – Ctrl) on production performance of laying-hen parent flocks. Two houses of 15,000 Hy-Line brown parent-stock hens each were used for the comparative study. Hen-day egg production (HDEP), eggs per hen ho...

Microbial food safety of eggs has not been thoroughly investigated in Egypt. Pseudomonas species are among the most ubiquitous bacteria in the environment that may also contaminate eggs. To investigate the microbial burden of Pseudomonas species in eggs, one hundred composite samples (6 eggs in each) of table hen and duck eggs were prepares after they were collected from different shops and sup...

chicken anemia virus was detected by pcr in tissue samples collected from poultry flocks in gujarat,india. the vp1, vp2 and vp3 gene sequences of cav from anand, gujarat were obtained after cloning thepcr products in pdrive cloning vector. nucleotide sequence alignment with other cav sequencesdemonstrated overall identity of 95-98.8%, 98.8-99.8% and 98.8-100% for vp1, vp2 and vp3 regions,respec...

s of papers 67 283 Physiology and behavior of the hen during an induced molt. A. B. Webster*, The University of Georgia, Athens, Georgia. Feed deprivation is used commercially to induce molt because it is the easiest method to apply and produces the best results. Animal welfare concerns have made it important to evaluate the experience of hens undergoing feed deprivation. Birds of diverse speci...

Kurzfassung In diesem Artikel werden zwei Simulationen für Fußgängerverkehr vorgestellt. Beide beru-hen auf einem Zellularautomaten–Modell. Das erste Modell beschreibt die grundsätzliche Bewegung von Fußgängern zwei entgegengesetzter Laufrichtung in einem langen Gang. Das zweite Modell stellt eine Evakuierungssimulation dar, die für verschiedene Problem-stellungen angewandt wird.

Expression of Bcl-x protein was evaluated in hen ovarian follicles, relative to stage of development, and in cultured granulosa cells after treatment with various apoptosis-suppressing or -inducing agents. Using Western blot analysis, Bcl-X(LONG) was most frequently observed migrating as a doublet with a molecular mass of approximately 28 kDa; the apparent higher molecular mass band of this dou...

to determine the effect of graded levels of low glucosinolate CM, up to complete replacement of soybean meal, on the performance of laying hens. Wheat-based diets were formulated on a digestible amino acid basis with 4 levels of CM (0 to 16.7%) and fed to 3 commercial laying hen strains, Lohmann Brown (LOH), ISA Brown (ISA), and Lohmann LSL (LSL). Rations were fed from 19 to 59 wks of age, with...

Nowadays optimal feed formulation for poultry is sought available content, which takes into account how the nutrients are digested and metabolized by animal. The digestibility coefficients of usually obtained in vivo trials that require feeding birds with different diets well-known composition analyzing a large number excreta samples. Nutrient found wet analytical methods. This work presents vi...

The purpose of the study is to features macro- and microscopic structure avian uterus in hen Haysex white cross. objects were 10 carcasses adult hens, cross-hysex white, aged 160-180 days. To oviduct, method conventional fine dissection was used. For histological examination, material fixed a 10% aqueous solution neutral formalin, followed by pouring into paraffin. As result our research, we no...