Firstly, this study aimed to evaluate the effects on hatchability and relative weights of yolk, metabolic organ (heart, liver, breast muscle, thigh muscle) total digestive system (GUT) in ovo feeding cinnamon, ginger or anise extract. Secondly, it was investigated determine appropriate dose extract feeding. For purpose, 480 fertilized broiler eggs were randomly distributed into 12 groups with f...

Occludin's role in mammalian tight junction activity was examined by 'labeling' the occludin pool with immunologically detectable chick occludin. This was accomplished by first transfecting MDCK cell with the Lac repressor gene. HygR clones were then transfected with chick occludin cDNA inserted into a Lac operator construct. The resulting HygR/NeoR clones were plated on porous inserts and allo...

ABsT•CT.--Variation in the water, lipid, and nonlipid dry matter of eggs and newly hatched chicks of the Laughing Gull and Japanese Quail was related to variation in the size of the egg. Egg contents of the two species were, on average, very similar. Yolk size varied in direct proportion to egg size, but in the quail large eggs contained disproportionately low levels of lipid and high levels of...

In this study the term 'rates of synthesis' does not refer to rates of transcription but to rates of accumulation of newly synthesized RNA. The rates of synthesis and half-lives of tRNA, 18S and 28S rRNA of 14-day and 17-day embryonic chick muscle were determined by following the accumulation of radioactive AMP in RNA after administration of [3H]8-adenosine to chick embryos and correcting for t...

Simonsen8 demonstrated that the intravenous inoculation of adult fowl spleen cells or peripheral white blood cells into chick embryos gave rise to splenic enlargement and a Coomb's positive hemolytic anemia in the recipient chick. He found that this effect was species specific, required viable cells from donors over 11 days of age for its initiation, and could be passaged from chick to chick at...

The control of gene expression during terminal myogenesis was explored in heterokaryons between differentiated and undifferentiated myogenic cells by analyzing the formation of species specific myosin light chains of chick and rat skeletal muscle. Dividing L6 rat myoblasts served as the biochemically undifferentiated parent. The differentiated parental cells were mononucleated muscle cells (myo...

The total iron content of an egg of average size is about 0.8 to 1.0 mg. of Fe. Both the poultryman and the consumer are interested in the possibility of increasing the amount of iron above this figure. The poultryman is devoting his efforts to the production of eggs which contain the maximum amounts of the essential elements and compounds needed for the development of strong and sturdy chicks....

Histone deacetylases (HDACs) are a family of enzymes which regulate the acetylation state of nucleosomal histones, as well as non-histone proteins. By altering local chromatin architecture, HDACs play important roles in shaping cell differentiation and morphogenesis. Expression of class I HDACs during early chick development has so far not been analyzed. Here, we report the expression profile o...

Effects of venom from black scorpion Androctonus crasicuda (AC) were determined on isolated chick biventer cervices nerve-muscle and mouse hemidiaphragm preparations using twitch tension method. The isolated nerves were stimulated by electrical stimulator and response to each stimulus was recorded. The venom mainly acted prejunctionally to facilitate neuromuscular activity due to an increase in...

The morphogenetic development of the vestibular ganglion cells, nerve fibers and otic vesicle in the chick embryos from 3.5-day-old chick embryos until one day after birth of the chick of White Leghorns was investigated using light microscopy, scanning electron microscopy and lectin's HRP methods. The results were as follows: 1. On the 3.5-day-old chick embryos, the facial-acoustic ganglion mas...