The objectives of this study were to investigate the effects of different dietary sources of unsaturated fatty acids (fish oil (FO) and/or linseed oil (LO)) on laying performance, egg yolk fatty acid composition, ovarian follicular development, antioxidative properties, immune response and tibial bone characteristics in aged laying hens. A total of 100 Hisex Brown hens at 56 weeks of age were h...

BACKGROUND Enhancement of enzymatic digestibility by some supplementations could reduce enzyme loading and cost, which is still too high to realize economical production of lignocellulosic biofuels. A recent study indicates that yeast hydrolysates (YH) have improved the efficiency of cellulases on digestibility of furfural residues (FR). In the current work, the components of YH were separated ...

The aim of this study was to investigate the genetic and phenotypic correlations of egg quality traits in Khazak chicken. Albumen height (AH), albumen weight (AW), eggshell color (ESC), yolk color (YC), eggshell index, long length of egg (ELL), short length of egg (ESL), eggshell weight (ESW), egg weight (EW), Haugh units, and yolk weight (YW) were measured in 201 eggs collected 6 d sequentiall...

1. The effect of biotin supplementation of low-biotin practical diets during rearing and laying stages on performance was studied in White Leghorn-type laying hens. 2. Biotin supplementation during rearing did not have any apparent effect on the condition of the bird at point-of-lay or on subsequent laying performance. 3. Biotin supplementation during lay did not have any beneficial effect upon...

The objective of this paper is to improve the efficiency in predicting the fertility of chicken eggs using digitalised techniques. The traditional technique finds incongruence in predicting the fertility by manual method. By using this system the digital images obtained as the result of candling process is used for fertility prediction. The obtained image is converted to RGB components as the c...

The emission spectra of YH and YD molecules have been investigated in the 3600-12,000 cm(-1) region using a Fourier transform spectrometer. Molecules were formed in an yttrium hollow cathode lamp operated with a continuous flow of a mixture of Ne and Ar gases, and YH and YD were observed together in the same spectra. A group of bands observed near 1 μm have been identified as 0-0 and 1-1 bands ...

Thin films of rare-earth metal oxyhydrides, such as yttrium oxyhydrides (${\mathrm{YH}}_{3\ensuremath{-}2x}{\mathrm{O}}_{x}$), show a photochromic effect where the transparency decreases reversibly upon exposure to UV light. However, exact mechanism behind this is unknown. In paper, we describe behavior ${\mathrm{YH}}_{3\ensuremath{-}2x}{\mathrm{O}}_{x}$ thin films, with different ${\mathrm{O}}...

The purpose of this study was to determine the effect watermelon seed flour supplementation in feed on interior quality native chicken eggs. This research is a biological using Completely Randomized Design (CRD) with 4 treatments and 5 replications. Each treatment used chickens. results statistical analysis showed that had very significant (p<0.01) egg yolk index white height an insignifican...

Egg has valuable nutrients however; these may be affected by many factors. In this study, it was aimed to determine the effects of cage type, oviposition time and egg storage period on quality characteristics laying hens. A total 410 eggs were collected from unenriched enriched cages in morning afternoon. After weighed, they stored at 21oC 20% relative humidity until 30th day storage. It determ...

It has been suggested that a random tree puzzle (RTP) process leads to a Yule-Harding (YH) distribution, when the number of taxa becomes large. In this study, we formalize this conjecture, and we prove that the two tree distributions converge for two particular properties, which suggests that the conjecture may be true. However, we present statistical evidence that, while the two distributions ...