Effects of dietary zearalenone intake on oocyte quality for in vitro embryo production and on serum anti-Müllerian hormone and inflammatory marker levels, following ovum pick-up in Japanese Black donor cows
IF 3.3 2区 农林科学Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
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引用次数: 0
Abstract
In Japanese Black (JB) cattle, the number and percentage of transferable in vitro fertilization (IVF) embryos after oocyte collection are essential for the economic success of embryo production. Anti-Müllerian hormone (AMH) is a useful predictive marker for the number of cumulus-oophorus complexes (COCs) obtained through transvaginal oocyte retrieval. We aimed to examine the relationship of AMH levels, serum amyloid A (SAA) levels, and albumin/globulin (A/G) ratios, which are inflammatory markers, and urinary zearalenone (ZEN) levels, which reflect dietary ZEN intake, with the number and quality of oocytes recovered after ovum pickup (OPU) in JB donor cows as well as the number and rate of transferable IVF embryos. Oocytes obtained after OPU were fertilized in vitro. Additionally, blood and urine samples were collected at the time of OPU to assess serum AMH and SAA levels as well as urinary ZEN levels. The number of recovered oocytes (R = 0.745, P = 0.000) and transferable embryos was positively correlated with AMH levels (R = 0.704, P = 0.000) and negatively correlated with gamma-globulin levels. Furthermore, the percentage of transferable embryos per total number of embryos was positively correlated with urinary ZEN levels (P = 0.027). In conclusion, AMH levels can inform the selection of JB donor cows for OPU. Moreover, substandard ZEN contamination of dietary feed may not affect embryo production following OPU; instead, it may result in an increased number of transferable embryos, and in turn facilitate oocyte nuclear and cytoplasmic maturation during follicle development.
期刊介绍:
Animal Reproduction Science publishes results from studies relating to reproduction and fertility in animals. This includes both fundamental research and applied studies, including management practices that increase our understanding of the biology and manipulation of reproduction. Manuscripts should go into depth in the mechanisms involved in the research reported, rather than a give a mere description of findings. The focus is on animals that are useful to humans including food- and fibre-producing; companion/recreational; captive; and endangered species including zoo animals, but excluding laboratory animals unless the results of the study provide new information that impacts the basic understanding of the biology or manipulation of reproduction.
The journal''s scope includes the study of reproductive physiology and endocrinology, reproductive cycles, natural and artificial control of reproduction, preservation and use of gametes and embryos, pregnancy and parturition, infertility and sterility, diagnostic and therapeutic techniques.
The Editorial Board of Animal Reproduction Science has decided not to publish papers in which there is an exclusive examination of the in vitro development of oocytes and embryos; however, there will be consideration of papers that include in vitro studies where the source of the oocytes and/or development of the embryos beyond the blastocyst stage is part of the experimental design.