The mechanical behavior of eggshell was determined in terms of average rupture force and corresponding deformation. For the experiment, we selected goose eggs (Anser anser f. domestica). Samples of eggs were compressed along their x-axis and z-axis. The effect of the loading orientation can be described in terms of the eggshell contour curvature. Two different experimental methods were used: compression between two plates (loading rates up to 5 mm/s) and the Hopkinson split pressure bar technique. This second method enables achieving loading rates up to about 17 m/s. The response of goose eggs to this high loading rate was characterized also by simultaneous measurement of the eggshell surface displacements using a laser vibrometer and by the measurement of both circumferential and meridian strains.
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http://dx.doi.org/10.1007/s10867-016-9420-9 | DOI Listing |
J Anim Physiol Anim Nutr (Berl)
January 2025
Department of Animal Science, Faculty of Agriculture, Tekirdağ Namık Kemal University, Tekirdağ, Turkey.
This study aimed to determine the effects of the dietary Spirulina platensis supplementation and egg storage period on egg quality traits, blastoderm characteristics and hatching results of Mast geese. For this purpose, the control group was fed the standard enterprise diet, while the experimental group received the same diet supplemented with 0.5% S.
View Article and Find Full Text PDFMorphologie
December 2024
Laboratoire d'anatomie, biomécanique et organogenèse, faculté de médecine, université libre de Bruxelles, route de Lennik, 808, CP, 619, 1070 Bruxelles, Belgium.
Objective: To use immunohistochemistry to analyse the expression of MSX1 and β-catenin proteins during parrot pseudoteeth development and goose denticulations and giant filiform papillae ontogeny.
Material And Methods: Eggs were purchased from stockbreeders. Embryos from selected stages were removed and sliced.
Int J Mol Sci
August 2024
Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Giza 12618, Egypt.
The hemagglutination inhibition (HI) assay is a traditional laboratory procedure for detection and quantitation of serum antibodies of hemagglutinating viruses containing the hemagglutinin (HA) gene. The current study aimed to investigate the novel use of virus like particles (VLP) as an antigen for the HI assay. VLPs were prepared from a strain of H5N1 using a baculovirus expression system.
View Article and Find Full Text PDFPoult Sci
September 2024
College of Coastal Agricultural Sciences, Guangdong Ocean University, 524088 Zhanjiang, Guangdong, PR China. Electronic address:
Low hatchability has been a persistent challenge in the goose industry. Establishing standard atlases and comprehending embryonic development patterns are essential to improving the hatching rates of goose eggs. However, comprehensive descriptions of normal atlases, embryonic development, and energy requirements in geese are lacking.
View Article and Find Full Text PDFPoult Sci
October 2024
Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China; National Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing Agricultural University, Nanjing 210095, P. R. China. Electronic address:
Betaine has been shown to enhance growth performance and increase breast muscle yield in ducks and broilers through various mechanisms, including the modification of DNA methylation. However, the impact of in ovo betaine injection on muscle growth in newly hatched goslings remains unclear. In this study, fifty eggs were injected with saline or betaine at 7.
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