Results 21 to 30 of about 136,516 (311)
Structures and functions of cilia during vertebrate embryo development
Molecular Reproduction and Development, Volume 89, Issue 12, Page 579-596, December 2022., 2022 Abstract Cilia are hair‐like structures that project from the surface of cells. In vertebrates, most cells have an immotile primary cilium that mediates cell signaling, and some specialized cells assemble one or multiple cilia that are motile and beat synchronously to move fluids in one direction.
Jeffrey D. Amack
wiley +1 more source
Journal of reproduction and fertility. Supplement, 2019 Nutrition is one of the most significant influences on the ovulation rate of sheep. In the extensive systems of husbandry practised in many countries most animals will experience at least one period of nutritional deprivation during their lifetime. Under
Downing Ja, RJ Scaramuzzi
semanticscholar +1 more source
The effects of endocrine‐disrupting chemicals on ovarian‐ and ovulation‐related fertility outcomes
Molecular Reproduction and Development, Volume 89, Issue 12, Page 608-631, December 2022., 2022 Abstract Exposure to endocrine‐disrupting chemicals (EDCs) is unavoidable, which represents a public health concern given the ability of EDCs to target the ovary. However, there is a large gap in the knowledge about the impact of EDCs on ovarian function, including the process of ovulation.
Katie L. Land +3 more
wiley +1 more source
Science Education, Volume 107, Issue 1, Page 124-148, January 2023., 2023 Abstract This paper reports on a case study of undergraduate biology students' drawing‐based modeling and how this process plays out in naturalistic dialogues. Recent research has revealed the importance of drawings, talk, and gestures in students' model‐based reasoning.
Mari Sjøberg +2 more
wiley +1 more source
Synchronization of ovulation in crossbred dairy heifers using gonadotrophin-releasing hormone agonist, prostaglandin F2a and human chorionic gonadotrophin or estradiol benzoate [PDF]
Brazilian Journal of Medical and Biological Research, 2000 Girolando (Gir x Holstein) is a very common dairy breed in Brazil because it combines the rusticity of Gir (Bos indicus) with the high milk yield of Holstein (Bos taurus).
C. Castilho +5 more
doaj +1 more source
Multi-scale modeling of follicular ovulation as a reachability problem [PDF]
Multiscale Modeling & Simulation 6, 3 (2007) 895--912, 2006 During each ovarian cycle, only a definite number of follicles ovulate, while the others undergo a degeneration process called atresia. We have designed a multi-scale mathematical model where ovulation and atresia result from a hormonal controlled selection process.
arxiv +1 more source
Oocyte-derived growth factors and ovulation rate in sheep.
Reproduction (Cambridge, England) Supplement, 2019 The physiological mechanisms controlling ovulation rate in mammals involve a complex exchange of endocrine signals between the pituitary gland and the ovary, and a localized exchange of intraovarian hormones between the oocyte and its adjacent somatic ...
K. McNatty +12 more
semanticscholar +1 more source
Coordination of Ovulation and Oocyte Maturation: A Good Egg at the Right Time.
Endocrinology, 2018 Ovulation is the appropriately timed release of a mature, developmentally competent oocyte from the ovary into the oviduct, where fertilization occurs. Importantly, ovulation is tightly linked with oocyte maturation, demonstrating the interdependency of ...
R. Robker, J. Hennebold, D. Russell
semanticscholar +1 more source
Veterinary Medicine and Science, Volume 9, Issue 1, Page 191-202, January 2023., 2023 In this study, we supplemented the diet of breeding sows either with omega‐6 (control) or omega‐3 (experimental) polyunsaturated fatty acids and examined their effects on the antioxidant system and hormone levels of the animals. In the blood levels of molecules indicating oxidative stress we experienced slight changes, but the feeding of omega‐3 fatty ...
Róbert Roszkos +4 more
wiley +1 more source
Revista Brasileira de Zootecnia, 2020 The objective of this study was to evaluate the effect of replacing ground corn (402 g kg−1 of dry matter) with rehydrated corn grain silage (RCGS; 425 g kg−1 of dry matter) in a flushing diet on follicular development in tropical Santa Inês ewes ...
Lucas Machado Figueira +7 more
doaj +1 more source