Transcriptomic analysis of the liver in aged laying hens with different eggshell strength

A Comprehensive Exploration of the Fatty Acids Profile, Cholesterol, and Tocopherols Levels in Liver from Laying Hens Fed Diets Containing Nonindustrial Hemp Seed

“…Plant proteins have been shown to have a cholesterol-lowering effect, which is largely due to the indigestible fraction that decreases intestinal cholesterol absorption, increases fecal sterol excretion, and improves the catabolism of lipoproteins containing the bulk of cholesterol by increasing the number or activity of LDL receptors [ 65 ]. Increasing fiber concentrations in diets reduces hepatic fat concentrations in laying hens by increasing fatty acid oxidation and decreasing fatty acid synthesis in the liver [ 66 ]. The viscosity produced by fiber is considered to be one of the key factors in reducing intestinal cholesterol absorption by binding directly to cholesterol, reducing its diffusion to the apical surface of the intestinal mucosa cells and being involved in the cholesterol emulsification in the intestinal lumen [ 67 ].…”

High albumen height by expression of GALNT9 and thin eggshell by decreased Ca2+ transportation caused high hatchability in Huainan partridge chicken

“…In addition to the formation of HCO 3 − from CO 2 in the blood, a portion of HCO 3 − is transferred to uterine glandular cells via Na/HCO 3 − ( SLC4A4 ), playing a secondary role in HCO 3 − transport ( Xu et al, 2003 ). The HCO 3 − in the uterine glands is transported to the uterine fluid through the HCO 3 − /Cl − ion channel encoded by SLC26A9 ( Han et al, 2023 ). The decrease in eggshell strength induced by heat stress is due to the downregulation of ITPR3, SLC4A4 , and SLC4A9 genes, which reduced Cl − , HCO 3 − , and Na + transport ( Bahadoran et al, 2018 ).…”

Quantitative lipidomics reveals the changes of lipids and antioxidant capacity in egg yolk from laying hens with fatty liver hemorrhagic syndrome

“…In the breeding industry for in caged laying hens, Fatty liver hemorrhagic syndrome significantly impacts the laying rate and egg quality and can even lead to death in severe cases ( Shini et al, 2019 ). Han, et al (2023) have demonstrated FLHS may be a significant factor influencing eggshell strength in laying hens, increasing susceptibility to external environmental influences and reducing egg storage time. To the best of our knowledge, studies on the impact of FLHS on egg yolk lipids are lacking.…”