Embryonic Mortality in Cattle- A Review
نویسندگان
چکیده
منابع مشابه
Embryonic mortality in cattle from the embryo’s perspective
For the embryo to successfully complete development it must be capable of executing its developmental program within a microenvironment largely established by the mother. Mortality results either because of intrinsic defects within the embryo, an inadequate maternal environment, asynchrony between embryo and mother, or failure of the mother to respond appropriately to embryonic signals. To some...
متن کاملCauses of Maternal Mortality in Iran: A Systematic Review
Background Maternal death is a key qualitative reliable index of a nation’s economic development. The present research aims to investigate causes of maternal mortality in Iran. Materials and Methods A systematic review of the following databases led us to find the target articles: Medline (via PubMed), Science Direct, CINAHL, CINAHL (EBSCO), Scopus, Web of Science, SID, ISC, Magiran, and Goog...
متن کاملMethods of Embryo Sexing in Cattle Breeding: A Review
Different livestock sectors as beef industries get benefit from the production of male animals while dairy industries get benefit from the milk production by the female animals. Therefore, it is obvious need to produce the animals of desired sex which can be achieved by predetermining the sex of conceptus at the time of conception i.e. pre determination of sex may be of great economic importanc...
متن کاملsecuritization of mortality risks in life annuities
insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...
15 صفحه اولFertilization failure and embryonic mortality in parous and nonparous beef cattle.
One hundred and two nonparous females, 18 to 24 mo old, and 55 parous or multiparous beef females, 3 to 12 yr old, were mated naturally (d 0) and slaughtered on d 2 to 5, 6 to 8 or 14 to 16 of gestation. Each reproductive tract was flushed with phosphate-buffered saline, and the flushings were searched for an oocyte or embryo. Parous females had a higher (P less than .05) fertilization rate tha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Current Microbiology and Applied Sciences
سال: 2018
ISSN: 2319-7692,2319-7706
DOI: 10.20546/ijcmas.2018.707.177