Astaxanthin, a natural antioxidant, is a carotenoid widely used in aquaculture, in the production of trout and shellfish to provide the pink color of meat. Although this application has been used for over thirty years since the nineties, it is one of the most important pigments for food colouring industry today. Additionally, astaxanthin plays an important role in improving egg and sperm quality in fish reproductive processes. The world market is dominated by the use of synthetic astaxanthin, besides, interest in natural sources of the pigment has grown considerably recently. The most common sources of natural astaxanthin are the green algae Haematococcus pluvialis, the red yeast Phaffia rhodozyma, as well as crustacean byproducts. Astaxanthin is an antioxidant that has increased demand in the nutraceutical market as an encapsulated product. In addition, the consumption of astaxanthin has many health benefits, such as the prevention of cardiovascular diseases, strengthening the immune system, bioactivity against Helycobacter pylori, and prevention of cataracts. This article reviews the available evidence on astaxanthin chemistry and its potential beneficial effects on living things
Calf death is the most important problem of cattle breeding in the world and in our country. Calf losses are most intense in the perinatal and neonatal period. Premature birth remains an important and common cause of calf mortality in the world and Turkey. The most important cause of premature calf losses is lung development failure. In the case of surfactant deficiency that occurs as a result of lung development failure in premature calves, lung surface tension is not reduced, air filling in the lung cannot be achieved sufficiently, and thus respiratory distress syndrome (RDS) develops. RDS is the most important cause of death in premature calves. Premature calves are almost left to die due to reasons such as the fact that treatment and care of premature calves are difficult and the prognosis is poor. Due to the understanding that treatment and care of premature calves are difficult and their prognosis is poor, premature calves are almost left to die. However, it should be kept in mind that the survival rate of premature calves with correct treatment and good care can be quite high. In this review, our current and experiential knowledge about the correct treatment and good care of premature calves was shared with scientists and clinicians.
Primary Language | Turkish |
---|---|
Subjects | Veterinary Sciences |
Journal Section | Erratum |
Authors | |
Publication Date | December 31, 2021 |
Submission Date | June 29, 2021 |
Acceptance Date | November 23, 2021 |
Published in Issue | Year 2021 |