Results 51 to 60 of about 2,724,277 (202)
The Bursa of Fabricius and Antibody Production
Poultry Science, 1956 Abstract The bursa of Fabricius is a structure peculiar to Aves. It is a blind sac connected by a small duct to the dorsal part of the cloaca. Often nicknamed “the cloacal thymus,” the function of the bursa is believed to be similar to that of the thymus (Riddle, 1928; Taibel, 1938).
Timothy S. Chang +2 more
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Effect of Feeding Oak Acorn on Expression of IL-2, IL-13 and IFN-γ Genes in Bursa Fabricius Tissue of Broiler Chickens (Short Communication) [PDF]
Poultry Science Journal, 2019 Today, the use of oak as a replacement feed in poultry diets is well documented. However, oak contains polyphenol compounds (tannins) as antinutrient factors resulted in limited usage in the poultry rations.
Nobakht E, Muhaghegh Dolatabady M
doaj +1 more source
New Q matrices and their functional equations for the eight vertex model at elliptic roots of unity [PDF]
, 2008 The Q matrix invented by Baxter in 1972 to solve the eight vertex model at roots of unity exists for all values of N, the number of sites in the chain, but only for a subset of roots of unity. We show in this paper that a new Q matrix, which has recently been introduced and is non zero only for N even, exists for all roots of unity.
arxiv +1 more source
Dynamical properties of the compounds CuGeO_3 and α'--NaV_2O_5 at temperatures $T\neq 0$ [PDF]
, 1997 The dynamical structure factor of the frustrated spin 1/2 Heisenberg model for a series of frustration parameters at finite temperatures is presented. A sharp upper boundary of the spinon continuum is found. A simple method to extract the nearest neighbour coupling J from the spectral width is suggested.
arxiv +1 more source
Global oscillations of a fluid torus as a modulation mechanism for black-hole high-frequency QPOs [PDF]
Astron.Nachr. 326 (2005) 849-855, 2005 We study strong-gravity effects on modulation of radiation emerging from accreting compact objects as a possible mechanism for flux modulation in QPOs. We construct a toy model of an oscillating torus in the slender approximation assuming thermal bremsstrahlung for the intrinsic emissivity of the medium and we compute observed (predicted) radiation ...
arxiv +1 more source
Beni-Suef University Journal of Basic and Applied Sciences, 2023 Background Sunset yellow (E110) has largely been used as food coloring agent. Complaints accumulated on E110 for possible detrimental effects on the immune functions such as allergenicity in the children.
Elif Berktay +2 more
doaj +1 more source
The Determination of the Bursa-Wolf Parameters [PDF]
arXiv, 2011 The paper presents the determination of the seven parameters of the Bursa-Wolf Transformation between the geodetic ...
arxiv
Media Peternakan, 2009 The objective of the research was to determine the influences of heat stress and temperature-exposed time on liver malonaldehyde (MDA), relative weight of bursa fabricius and heterophil/lymfocite ratio of broilers.
E. Kusnadi
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Development of the Bursa of Fabricius in the Partridge and Pheasant
Poultry Science, 1987 Development and regression of the bursa of Fabricius was measured in chukar partridge (Alectoris chukar) and ring-necked pheasant (Phasianus colchicus) from hatch to 40 and 34 weeks of age, respectively. Testes weights were recorded for 8 to 34-week-old pheasants and 12 to 30-week-old chukars.
Allen E. Woodard, S. L. Mercer-Oltjen
openaire +3 more sources
Effect of Marek's vaccine on some lymphoid organs in layers [PDF]
Iraqi Journal of Veterinary Sciences, 2011 The aim of the study was to examine experimentally the gross and histological changes in layers (ISA Brown) inoculated with bivalent vaccine (CVI 988 and HVT) intramuscularly at one day of age.
H. A. Hassan, T. S. Qubih
doaj