نتایج جستجو برای: yolk percentage

تعداد نتایج: 143021  

Journal: :Scientific American 1892

2014
Nagendra Nath Barman Anjan Jyoti Nath

Aim: The aim was to study the seroconversion and development of egg yolk immunoglobulins in adult laying White Leghorn hens immunized against an isolate of enterotoxigenic Escherichia coli (ETEC) bearing K91 and K88ac antigens, obtained from diarrheic piglet. Materials and Methods: Adult laying White Leghorn hens were immunized with inactivated enterotoxic E. coli strain isolated originally fro...

Journal: :Blood 1997
M C Yoder K Hiatt

Yolk sac hematopoiesis is characterized by restricted hematopoietic cell differentiation. Although multipotent hematopoietic progenitor cells have been identified in the early yolk sac, long-term multilineage repopulating (LTMR) hematopoietic stem cell (HSC) activity has not been demonstrable before day 11 postcoitus (PC) using standard transplantation assays. In the present study, day-10 PC yo...

Journal: :Developmental biology 2003
Jacqueline M Brooks Gary M Wessel

The major yolk protein of sea urchins is an iron-binding, transferrin-like molecule that is made in the adult gut. Its final destination though is the developing oocytes that are embedded in somatic accessory cells and encompassed by two epithelial layers of the ovary. In this study, we address the dynamics of yolk transport, endocytosis, and packaging during the vitellogenic phase of oogenesis...

This experiment was conducted to evaluate the effect of graded dietary levels of pure curcuminoid on productive performance, egg quality traits, some biochemical blood parameters, immune response and its digestibility in the late phase of production of laying hens. A total of 160 sixty-weeks-old Hy-Line (W-36) laying hens were used in a completely randomized design, including 4 treatments in fo...

Journal: :The Lancet 1922

Journal: :Journal of embryology and experimental morphology 1984
J D West T Bücher I M Linke M Dünnwald

Mouse aggregation chimaeras were produced by aggregating C3H/HeH and C3H/HeHa-Pgk-1a/Ws embryos. At mid-term the proportions of the two cell populations in these conceptuses and the X-inactivation mosaic female progeny of C3H/HeH female X C3H/HeHa-Pgk-1a/Ws male matings were estimated using quantitative electrophoresis of phosphoglycerate kinase (PGK-1) allozymes. The percentage of PGK-1B was m...

Journal: :Journal of animal science 1982
J Arriola R H Foote

Because microfloral content of stallion semen tends to be high, and strains may be resistant to commonly used antibiotics, amikacin was tested with stallion semen and compared with bull semen. Nine ejaculates to stallion semen were incubated at 37 C in egg yolk-tris extender for 0, 2, 4, 6, 8 and 10 h in the presence of amikacin concentrations of 0, 50, 100, 250, 500, 1,000 and 10,000 microgram...

Journal: :Poultry science 1999
D U Ahn J L Sell C Jo M Chamruspollert M Jeffrey

Twenty-four, 79-wk-old White Leghorn hens were assigned randomly to three diets containing 0, 2.5, or 5.0% conjugated linoleic acid (CLA). The diets were fed for 4 wk to determine the effect of dietary CLA on quality characteristics of eggs. Eggs were collected daily and stored at 4 C for 1, 7, 21, or 49 d. At the designated times, the eggs were processed to evaluate water content, fatty acid c...

Journal: :The Journal of experimental biology 2009
James R Stewart Tom W Ecay Benoit Heulin

Embryos of oviparous squamate reptiles typically obtain calcium from both yolk and eggshell but differ from other oviparous amniotes (turtles, birds and crocodilians) because they are heavily dependent on calcium-rich yolk. Eggs of viviparous squamates lack calcareous eggshells, and embryos receive calcium solely from yolk or from both yolk and placenta. The pattern of calcium mobilization by a...

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