Abstract
Enzymes are known to play the significant role in gene expression during ontogenesis, in maintenance of homeostasis and regulation of growth and development, and in productive traits. To estimate the physiological conditions and egg productivity in hens, the alanine and aspartate aminotrasferases (AlAT and AsAT) activity is considered as the most adequate. Nevertheless, the investigations of fermentative status in tissues and organs of hens are limited, and particularly, the information on specific effects of the age, the stage of the oviposition period, and the egg productivity to AlAT and AsAT activity in hen blood and tissues was not found in the accessible literature. We studied the dynamics of AlAT and AsAT activity in blood, liver, heart and kidneys during egg laying (26, 52 and 80 weeks) in Lohmann White hens from commercial farm. It was shown the changes of activities and the ratio of AlAT and AsAT, even if the physiological variability is not exceeded, occur due to metabolic changes. There is the relationship between the catalytic activity of AlAT, AsAT, AlAT/AsAT ratio in blood serum and in liver, heart and kidneys cells. The functional parameters of AlAT and AsAT reflect both the intensiveness and specificity of amino acids metabolism in cells, and the rate of enzymes output from cells to blood, and also correlate with egg productivity. Thus, the amount of AlAT and AsAT in hepatocytes and the rate of aminotransferases output to blood during the physiological regeneration the mostly affect the AlAT and AsAT concentrations, ratio and activity in blood, which, in turn, determine the character of biochemical changes of amino acids in hens and, as a result, affect the egg production.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
