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Accurate calculation of the content volume, density and original weight of museum curated eggs.
Sci Rep
December 2024
School of Biosciences, University of Kent, Canterbury, Kent, CT2 7NZ, UK.
Worldwide museums hold collections of eggshells representing material for descriptive studies. However, an obstacle to this is the lack of information about the original contents and weight of the entire egg (W). This study aimed to fill this gap though development of a methodological mechanism for calculating the volume of the egg interior (V), its density (D) and W.
View Article and Find Full Text PDFIn vitro evaluation of frozen thawed kangayam bull semen enriched with antioxidants.
Pol J Vet Sci
September 2024
Department of Clinics, Veterinary College and Research Institute, Tamil Nadu Veterinary and Animal Sciences University, Namakkal-637 001, India.
The aim of this study was to assess the in vitro penetration rate of antioxidant enriched frozen thawed Kangayam bull semen. For the current investigation, 5-7-year-old Kangayam bulls were used. The semen was collected twice per week and two ejaculates were collected each time.
View Article and Find Full Text PDFEffect of dietary supplementation of jujube fruit (Ziziphus jujuba) powder on performance, some biochemical parameters, and egg quality in quails (Coturnix coturnix japonica).
Pol J Vet Sci
June 2024
Elazıg Veterinary Control Institute, Republic of Turkey Ministry of Agriculture and Forestry, 23200, Elazig, Turkey.
This study aimed to evaluate the effects of different dietary supplementation levels with jujube fruit powder on the performance, biochemical parameters, and egg quality characteristics of laying quails. A total of 60 quails (45 days old) were randomly assigned to treatments with different levels of jujube fruit powder: a basal diet (control) and diets supplemented with 5 g/kg (T1), 10 g/kg (T2), with five replicates per treatment (20 quails/treatment and four quails/replicate). The differences between 1-15 and 16-30 days for feed intake (p<0.
View Article and Find Full Text PDFPear-Shaped Eggs Evolved to Maximize the Surface Area-to-Volume Ratio, Increase Metabolism, and Shorten Incubation Time in Birds.
Integr Zool
December 2024
School of Natural Sciences, Canterbury, Kent, UK.
Bird eggs can be spherical, ellipsoid, ovoid, or pear-shaped (pyriform), the latter being the most complex. There is however no unambiguous evolutionary/adaptive explanation for this final, exotic shape. We hypothesized that pyriform eggs have a larger surface area-to-volume ratio (S/V) that may be a criterion for increased embryo metabolism.
View Article and Find Full Text PDFDevelopment and validation of a nomogram for failure to collect oocytes in POSEIDON Groups 3 and 4 undergoing IVF/ICSI treatment.
Sci Rep
December 2024
Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
This study aimed to develop and validate a predictive model for failure to collect oocytes in the Patient-Oriented Strategies Encompassing Individualized Oocyte Number (POSEIDON) Groups 3 and 4 during their first in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycle. A retrospective analysis was conducted on patients in POSEIDON Groups 3 and 4 who underwent their first IVF/ICSI cycle at our center from January 2016 to December 2023. A total of 2,373 patients were randomly assigned to the training or validation cohort at a ratio of 6:4.
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