Expression of ghrelin and the ghrelin receptor in different stages of porcine corpus luteum development and the inhibitory effects of ghrelin on progesterone secretion, 3 beta-hydroxysteroid dehydrogenase (3 beta-honestly significant difference (HSD)) activity and protein ...
A Corpus luteum cyst is a type of ovarian cyst which may rupture about the time of menstruation, and take up to three months to disappear entirely. A corpus luteum cyst rarely occurs at age 50+, because eggs are no longer being released in menopausal women. Corpus luteum cysts may contain blood and other fluids. The physical shape of a corpus luteum cyst may appear as an enlargement of the ovary itself, rather than a distinct mass -like growth on the surface of the ovary. This type of functional cyst occurs after an egg has been released from a follicle. The follicle then becomes a secretory gland that is known as the corpus luteum. The ruptured follicle begins producing large quantities of estrogen and progesterone in preparation for conception. If a pregnancy doesnt occur, the corpus luteum usually breaks down and disappears. It may, however, fill with fluid or blood, causing the corpus luteum to expand into a cyst, and stay in the ovary. Usually, this cyst is on only one side, and does not ...
TY - JOUR. T1 - The function and regulation of the primate corpus luteum during the fertile menstrual cycle.. AU - Stouffer, Richard. AU - Ottobre, J. S.. AU - Molskness, T. A.. AU - Zelinski, Mary. PY - 1989. Y1 - 1989. N2 - Figure 2 summarizes the changes in endocrine function and the factors which regulate the primate corpus luteum during the fertile menstrual cycle. The classical luteotropic role of LH during the menstrual cycle is superceded by CG at or before the time of implantation. The role of local factors in modulating luteal function is an area of continued research, as some factors are deemed less important (i.e., estrogen, at least prior to luteal rescue) and other possibilities (progesterone, prostaglandins, and relaxin) arise. The role of local factors has not yet been studied in the corpus luteum following its rescue in early pregnancy. Finally, it is apparent that a different type of "shift" precedes the recognized luteal-placental shift in early pregnancy, when the corpus ...
OpenPagesTop}} ==Introduction== Corpus Luteum is latin for "yellow body". The corpus luteum is the structure formed during luteinisation of the follicle after ovulation. The corpus luteum is, however, actually only yellow in the cow and in all other domestic species it is red. The yellow colouration of the corpus luteum is due to the pigment, lutein. ==Structure== There are two types of luteal cells present within the corpus luteum: 1. Small luteal cells (,20µm) Small luteal cells are formed from remodelled follicular theca cells. These cells proliferate during luteinisation. Small luteal cells contain many lipid droplets within their cytoplasm, which is an important source of cholesterol esters for [[Ovaries_Endocrine_Function_- Anatomy & Physiology#Progesterone,progesterone]] synthesis. 2. Large luteal cells (20-40µm) Large luteal cells are formed from follicular granulosa cells that have undergone hypertrophy. These large luteal cells are the endocrine cells of ...
Thus, it turns out that the corpus luteum in the ovary is formed in the body of a woman every month, and every month resolved.Its perfectly normal to experience and because of this is meaningless.However, there is a likelihood that in case of pregnancy, the corpus luteum does not resolve, and continue to produce progesterone, or after pregnancy the corpus luteum will continue to grow.In this case we speak of the corpus luteum cyst.. cystic corpus luteum usually has a larger than usual size.In this case, the symptoms are the same as during pregnancy: delayed menstruation, nagging feeling in the stomach, its all a result of the work of the hormone.However, pregnancy test gives a negative result.However, most of this state and is not at risk, even during pregnancy.. However, a cyst could still be a problem, if it is too large.In this case, the cyst may burst as a result of mechanical action.For example, if a large impact or physical exertion.And it is internal bleeding, ie the state, threatening ...
Evidence as to the precise role of the corpus luteum during pregnancy is contradictory, especially when different species are compared. Most observers agree that the presence of the corpus luteum is necessary during the early stages of gestation. During the second half of pregnancy, however, the removal of the corpus luteum in certain animals does not lead to immediate abortion. In the guinea-pig Loeb and Hesselberg (1917), Herrick (1928) and Courrier, Kehl and Raynaud (1929) have found that pregnancy may continue for some weeks after double ovariectomy, and Ash-Upmark (1926) has listed a large number of clinical cases in which ovariectomy in women has not disturbed pregnancy. The evidence for the rabbit (summarised by Hammond, 1925), is slightly contradictory, but tends to show that the corpus luteum is necessary during the whole of pregnancy, although this was not the conclusion of Niskoubina (1909). In the rat it appears that double ovariectomy towards the end of pregnancy does not always ...
Ma, T.; Jiang, H.; Gao, Y.; Zhao, Y.; Dai, L.; Xiong, Q.; Xu, Y.; Zhao, Z.; Zhang, J., 2012: Microarray analysis of differentially expressed microRNAs in non-regressed and regressed bovine corpus luteum tissue; microRNA-378 may suppress luteal cell apoptosis by targeting the interferon gamma receptor 1 gene
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A modified superfusion technique is described with which it was demonstrated that the action of gonadotrophin on progesterone secretion by pig corpus luteum tissue is twofold, in that it first stimulates the rapid release of progesterone (either performed or partially synthesized), which is followed by prolonged synthesis of the steroid de novo from acetate.. ...
When the dominant antral follicle ovulates, slight localised haemorrhage occurs at the site of ovulation and fills the former cavity. The small amount of bloody tissue can be observed by the naked eye. Loss of fluid from the antral cavity causes the follicle to collapse into many folds. As a result, some granulosal and thecal layers are pushed into the apex of the ruptured follicle. The protrusion of tissue and ruptured blood vessels forms a structure known as the corpus haemorrhagicum. Following this, the theca interna and granulosa cells differentiate into large and small luteal cells. Luteal cells contain increased quantities of lipid droplets and the pigment lutein. As the blood is resorbed, a solid corpus luteum is formed by proliferation of granulosa and theca intera cells as well as blood vessels. This remains on the surface of the ovary. In the non-pregnant animal, corpora lutea are transient structures. Cyclic corpora lutea undergo proliferation and vascularisation directly after ...
TY - JOUR. T1 - Characterization of low density and high density lipoprotein receptors in the rat corpus luteum and their regulation by gonadotropin. AU - Hwang, J.. AU - Menon, K. M J. PY - 1982. Y1 - 1982. UR - http://www.scopus.com/inward/record.url?scp=0020046436&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0020046436&partnerID=8YFLogxK. M3 - Article. AN - SCOPUS:0020046436. VL - 41. JO - Federation Proceedings. JF - Federation Proceedings. SN - 0014-9446. IS - 4. ER - ...
Corpus luteum cysts could be agonizing and might set off alterations in menstrual bleeding. Generally this type of cyst will dissolve on its own personalized inside of of various months of forming. At other situations, nonetheless, these are in a position to expand becoming rather substantial and heavy. The fat in the cyst may well trigger the ovary to increase for being twisted. A twisted ovary is incredibly agonizing and may phone for well-being-related consideration. And it actually is this ache that typically leads females to look for out the support of their health care medical doctor ...
The corpus luteum (plural: corpora lutea) is a temporary endocrine structure involved in ovulation and early pregnancy. During ovulation, the primary follicle forms the secondary follicle and subsequently the mature vesicular follicle. At ovula...
TY - JOUR. T1 - Seasonal changes in luteal progesterone concentration and mRNA expressions of progesterone synthesis-related proteins in the Corpus Luteum of Mares. AU - Kozai, Keisuke. AU - Hojo, Takuo. AU - Takahashi, Masashi. AU - Acosta, Tomas J.. AU - Nambo, Yasuo. AU - Okuda, Kiyoshi. PY - 2012. Y1 - 2012. N2 - Although circulating progesterone (P4) levels tend to change with the season, little is known about the seasonal changes of P4 synthesis-related proteins in the corpus luteum (CL) of mares. To examine these changes, seventy-four ovaries containing a CL were collected from Anglo-Norman mares at a local abattoir in Kumamoto, Japan (~N32°), five times during one year. The stages of the CLs were classified as early, mid and regressed by macroscopic observation of the CL and follicles. The mid CL, which had the highest P4 concentration, was used to evaluate the seasonal changes in P4 synthesis. The luteal P4 concentration and mRNA expression of luteinizing hormone receptor (LHCGR) were ...
After ovulation we enter the Luteal phase (Day 14-28) where here we observe that the surge of Luteinising Hormone (LH) has come and gone, and we are left with relatively steady levels of FSH and LH. However what you will note on the graph above is that progesterone levels have increased dramatically from around day 15 to 25 and this correlates with the rise in basal body temperature/basal metabolic rate (by-product of increased progesterone levels/ovulation) as well as the transition of the ruptured ovarian follicle that released the oocyte to the corpus luteum. Thus it is the corpus luteum that under the influence of Luteinising Hormone secretes and is responsible for the high progesterone levels. Interesting to note that the corpus luteum also secretes a hormone called inhibin which inhibits the anterior pituitary from further secreting Follicle stimulating hormone. Now the main effects of progesterone as secreted by the corpus luteum, is to increase blood vessel growth (vascularisation) in ...
Recent studies suggest that chemokines may mediate the luteolytic action of PGF2α (PGF). Our objective was to identify chemokines induced by PGF in vivo and to determine the effects of IL8 on specific luteal cell types in vitro. Midcycle cows were injected with saline or PGF, ovaries were removed after 0.5 - 4 h and chemokine expression was analyzed by qPCR. In vitro expression of IL8 was analyzed after PGF administration and with cell signaling inhibitors to determine the mechanism of PGF-induced chemokine expression. Purified neutrophils were analyzed for migration and activation in response to IL8 and PGF. Purified luteal cell types (steroidogenic, endothelial and fibroblast cells) were used to identify which cells respond to chemokines. Neutrophils and peripheral blood mononuclear cells (PBMCs) were co-cultured with steroidogenic cells to determine their effect on progesterone production. IL8, CXCL2, CCL2, and CCL8 transcripts were rapidly increased following PGF treatment in vivo and. The
View Notes - Sexual Structures from BIO BSC1010 at Broward College. a luteal phase (presence of the corpus luteum ). These cyclic phases are interrupted only by pregnancy and continue until
1. What factor do the syncytiotrophoblast cells secrete to support the ongoing pregnancy? Shortly after implantation of the blastocyst within the endometrium, the syncytiotrophoblast cells secrete the hormone human Chorionic Gonadotopin (hCG) which stimulates the corpus luteum. hCG supports the ongoing pregnancy by stimulating the corpus luteum to produce increased levels of the essential progesterone and estrogen hormones, thereby preventing menstruation and proliferation of the endometrium. hCG is continually secreted throughout the pregnancy however only at low levels for the final half of the pregnancy. 2. What does the corpus luteum secrete to prevent continuation of the menstrual cycle? The corpus luteum secretes both progesterone and estrogen, however it is primarily the elevated levels of progesterone that maintain stimulation of the endometrial cells. ...
It is extremely important, subsequently that pregnant patients present as soon as rib pain associated with pregnancy to corpuus emergency room for evaluation should they develop any irregular stomach pain signs. The above device makes it easy to regulate for these types of shift by letting you specify your data. Correct relationship of pregnancy is important, because it is utilized in calculating the outcomes of assorted prenatal assessments(for example, in the triple take a look at ). Hold a few seconds and release. Its possible youll be wondering whether you may be a superb provider, a good comforter, a superb disciplinarian. Corpus luteum cysts early pregnancy lteum your aspect and not in your back. Usually in the third trimester the tiredness, which you might have experienced in the first trimester, starts to kick in again. Pregnant ladies should continue to comply with present Earlyy steering that they take paracetamol at the lowest effective dose for the shortest possible time, according ...
Answer: Dear Desiree, A corpus luteum cyst forms after the egg has been released during ovulation. The egg is inside a sac called follicle. At ovulation,
A ecografia com recurso Doppler é uma tecnologia emergente que tem demonstrado ter potencial para melhorar as capacidades de diagnóstico dos veterinários de equinos. Esta tecnologia baseia-se nos príncipios do Doppler, onde as frequências de ultra-som estão dependentes do movimento dos eritrócitos dentro dos vasos sanguíneos. A função do Corpo Lúteo (CL) está dependente do aporte sanguíneo, o qual fornece não só percursores esteroides mas também permite libertação de progesterona (P4) na circulação sistémica. Desta forma uma técnica Doppler mais sensível, o modo Power Doppler, foi utilizada para avaliar uma possível relação entre as características do Corpo lúteo e a concentração da progesterona plasmática. Para este estudo nove éguas (n=9) foram seguidas durante o início da estação reprodutiva. O diâmetro, área e volume do Corpo Lúteo foram então obtidos através do modo B, bem como a sua vascularização através do modo Power Doppler.As análises da ...
Free essay sample about Corpus Luteum, a hormone-secreting structure, one of medical writing topics. Find more free medicine essays and research papers on our site.
TY - JOUR. T1 - Histologische und hormonelle Untersuchungen am Corpus luteum des Rindes.. AU - Okuda, Kiyoshi. PY - 1984. Y1 - 1984. M3 - Article. VL - 19. SP - 169. EP - 181. JO - Zuchthygiene. JF - Zuchthygiene. ER - ...
AM Focus Sessions and Flash Talks:. Session 1: Male Gametes in The Age of Precision Agriculture. Session 2: CHA Health Systems Symposium: Prenatal Programming from Different Perspectives. Session 3: Dr. Milton K.H.Leong Session: Immune Response to Infection in the Male Reproductive Tract. Session 4: The Placenta: Development and Functional Significance Session 5: Anita Payne Session: Corpus Luteum Development ...
According to Moreira and Hansen, cows typically show estrus, or signs of heat, approximately every 21 days. After a cow is inseminated, either naturally or by artificial insemination, the animals corpus luteum will not regress.. The corpus luteum, or yellow body, is a structure that develops from ovarian follicles during ovulation. Moreira and Hanson say that in the event of pregnancy, "The corpus luteum will not regress, progesterone concentrations will remain high, and the cow will not return to estrus.". If the cow is not observed to enter back into estrus approximately 21 days after end of the previous cycle, it is highly possible the cow is pregnant. Visual signs to detect estrus include tail chalking, mucus production from the vagina, swollen vulva and a willingness to be mounted.. ...
8 Following ovulation, during the luteal phase of the ovarian cycle, LH stimulates the transformation of the follicular tissue left behind in the ovary to form the corpus luteum, a glandular structure. (LH is named for this "luteinising" function.) Under continued stimulation by LH during this phase of the ovarian cycle, the corpus luteum secretes progesterone and oestrogen. As the levels of progesterone and estrogen rise, the combination of these hormones exerts negative feedback on the hypothalamus and pituitary, inhibiting the secretion of LH and FSH. Near the end of the luteal phase, the corpus luteum disintegrates, causing concentrations of estrogen and progesterone to decline sharply. The dropping levels of ovarian hormones liberate the hypothalamus and pituitary from the inhibitory effects of these hormones. The pituitary can then begin to secrete enough FSH to stimulate the growth of new follicles in the ovary, initiating the next ovarian cycle. ...
From the start of one period to ovulation (Day 1 to Day 14) egg producing follicles develop in one of the two ovaries. The growing follicles produce estrogens. About the middle of the cycle (Day 14) when the developed follicle is ripe, it bursts and releases it egg. This call ovulation. The released egg then starts its journey down the fallopian tube. If the woman have intercourse and there are sperm in the fallopian tubes, a sperm might fertilize the egg.. After ovulation, the empty follicle turns into a corpus luteum or yellow body, so called because it look like a small yellow mass on the ovary. The corpus luteum produces estrogens and progesterone. About one week after ovulation, if the egg has not been fertilized, the corpus luteum stops producing its hormones and it shrinks in size.. Before ovulation, only estrogens are produced by the follicles in the ovary. The amount of the estrogens increases, reaching a peak just before ovulation. After ovulation, both estrogens and progesterone are ...
Progesterone Levels and Egg Quality. Most of you might be aware that progesterone is playing a significant role when it comes to infertility treatments today. Its also known to play an important role in pregnancy and miscarriage. But, several people ask us what progesterone does with the egg quality. Is there any relationship between these two entities? Lets try to understand this here now…. Understanding about Progesterone Synthesis:. Now, lets try to understand about the progesterone synthesis here. There is a common misconception that progesterone is being produced by the ovary. But, its not so. The primary producer of this hormone is the corpus luteum, which is formed after the fertilization of your egg. The hormone will be released from the dominant follicle of the corpus luteum for the first 6 to 8 weeks of pregnancy.. The Relationship between Egg Quality and Progesterone Synthesis:. Now, understand that the ovary will produce a dominant follicle every month, which will be carrying ...
In ruminants, uterine pulses of prostaglandin (PG) F 2α characterize luteolysis, while increased PGE 2 /PGE 1 distinguish early pregnancy. This study evaluated intrauterine (IU) infusions of PGF 2α and PGE 1 pulses on corpus luteum (CL) function and gene expression. Cows on day 10 of estrous cycle received 4 IU infusions (every 6 h; n = 5/treatment) of saline, PGE 1 (2 mg PGE 1), PGF 2α (0.25 mg PGF 2α), or PGE 1 + PGF 2α. A luteal biopsy was collected at 30 min after third infusion for determination of gene expression by RNA-Seq. As expected, IU pulses of PGF 2α decreased (P , 0.01) P4 luteal volume. However, there were no differences in circulating P4 or luteal volume between saline, PGE 1, and PGE 1 + PGF 2α, indicating inhibition of PGF 2α -induced luteolysis by IU pulses of PGE 1. After third pulse of PGF 2α, luteal expression of 955 genes were altered (false discovery rate [FDR] , 0.01), representing both typical and novel luteolytic transcriptomic changes. Surprisingly, after ...
During the follicular phase of the cycle, progesterone levels remain low.[7-9] Following the LH surge and ovulation, luteal cells in the ruptured follicle produce progesterone in response to LH. During this, the luteal phase, progesterone rises rapidly to a maximum of 10-20 ng/mL at day following ovulation. During the luteal phase, progesterone transforms the estrogen-primed endometrium from a proliferative to a secretory state.[8] If pregnancy does not occur, progesterone levels decrease during the last four days of the cycle due to the regression of the corpus luteum.[7,8-13] If conception occurs, the levels of progesterone are maintained at mid-luteal levels by the corpus luteum until about week six. At that time the placenta becomes the main source of progesterone and levels rise from approximately 10-50 ng/mL in the first trimester to approximately 50-280 ng/mL in the third trimester.[7,14,15] ...
Fertility is a complex biological process that requires exquisite timing. At birth, the female has produced her lifetime supply of eggs. During each menstrual or estrus cycle, a few eggs will complete meiosis and undergo the final maturation process. The mature egg(s) must be fertilized by spermatozoa within a small window, usually 2-3 days, for the zygote to successfully implant within the uterus. A successful pregnancy requires the exact timing of many hormones and processes. For example, the corpus luteum on the ovary must produce progesterone to establish and maintain the pregnancy. During this time, the zygote continues development to form a blastocyst, producing chorionic gonadotrophin and developing the placenta, which will continue progesterone production. The dysregulation of fertility and pregnancy itself are highly studied processes, especially in the developed world where couples often choose to produce offspring during their later, less fertile years. These biological processes are ...
Fertility is a complex biological process that requires exquisite timing. At birth, the female has produced her lifetime supply of eggs. During each menstrual or estrus cycle, a few eggs will complete meiosis and undergo the final maturation process. The mature egg(s) must be fertilized by spermatozoa within a small window, usually 2-3 days, for the zygote to successfully implant within the uterus. A successful pregnancy requires the exact timing of many hormones and processes. For example, the corpus luteum on the ovary must produce progesterone to establish and maintain the pregnancy. During this time, the zygote continues development to form a blastocyst, producing chorionic gonadotrophin and developing the placenta, which will continue progesterone production. The dysregulation of fertility and pregnancy itself are highly studied processes, especially in the developed world where couples often choose to produce offspring during their later, less fertile years. These biological processes are ...
The objective was to characterize effects of Escherichia coli LPS (given iv) on corpus luteum (CL) and embryonic viability in early pregnant cattle. Eight non-lactating German Holstein cows were given 0.5 µg/kg LPS on 35 ± 3 d (mean ± SEM) of pregnancy, whereas seven heifers, 41 ± 6 d pregnant, were given 10 ml saline (Control group). Transrectal B-mode examinations of the CL were done at -1, 3, 6, 12, 24, 48, 72, and 96 h relative to treatment. Blood samples were collected at -1, 0.5, 1, 2, 3, 4, 6, 9, 12, 24, 48, 72, and 96 h. At 12 and 48 h, the CL was biopsied. None of the cows still in the experiment 10 d after LPS (n=7) had embryonic loss. In LPS-treated cows, luteal area decreased (from 4.1 to 3.1 cm2; P≤0.05) within 6 h and until 48 h. Luteal blood flow decreased by 39% (P≤0.05) within the first 6 h after LPS, but returned to pre-treatment values by 48 h. Plasma P4 decreased by 62% (P≤0.05), reached a nadir (2.7±0.6 ng/mL) at 12 h after LPS and was not restored to ...
If youre trying to have a baby- this is when you want to have sex! During ovulation, our libido increases, and men find us more attractive- research proves this! One study has went as far as to have men sniff "dirty t-shirts" and determined that they still find ovulating women more attractive! We want that released egg to meet up with sperm so that it can implant on the uterine wall. Not to fear- if you DONT want to get pregnant, avoid sex at this time.. After the peak in LH stimulating ovulation, there is a drop in estrogen levels. The next phase- the luteal phase, is dominated by progesterone. The luteal phase is typically 14 days long. Following ovulation, the remaining cells that are not released at ovulation become enlarged. This eventually forms the corpus luteum. The corpus luteum is a transient (short lived) endocrine organ that primarily secretes progesterone. This is why the second half of the cycle is dominated by progesterone! The purpose of this is to prepare the previously ...
கருத்தரிக்காவிட்டால் உதிரும் மாதவிலக்குக் கட்டம் (The Menstrual Phase): இந்நிலையில் முட்டை வேளியேறியதும் விடுபட்ட கருமுட்டைப் பை நீர்க்கட்டி (corpus luteum, இதுவே கருப்பை இயக்க நீரைச் சுரந்து கொண்டிருக்கிறது)கொஞ்சம் கொஞ்சமாகச் சுருங்கிக் கொண்டிருக்கிறது. கருப்பையை நோக்கிப் பயணித்திக் கொண்டிருக்கும் முட்டை கருக்கட்டப்பட்டால், கரு இன்னொரு இயக்க நீரான chorionic gonadotropin ஜச் சுரக்க, இவ்வியக்கநீர் corpus ...
Principal Investigator:OKUDA Kiyoshi, Project Period (FY):2013-04-01 - 2015-03-31, Research Category:Grant-in-Aid for Challenging Exploratory Research, Research Field:Animal production science
The aromatase enzyme (CYP19A1) is required for the biosynthesis of estradiol, a steroid needed for normal follicular and luteal cell function and essential for...
oestrogen stimulates LH production. LH produced by pituitary gland. LH stimulates ovulation LH stimulates formation of corpus luteum LH stimulates production of progesterone (by corpus luteum). progesterone maintains / thickens uterine lining LH inhibits FSH production without ovulation there is no egg release / no egg to fertilise. ...
I still cant imagine how we have now been this blessed, I thank my fortunate stars each evening. Then again some ladies really feel no signs at all. And finding and studying women stabes are trying to get pregnant is challenging, as theres such a narrow window between when they start trying and when some will succeed. For those who continue to obtain an error message, please call customer support at 1-800-620-5474. Most miscarriages happen during this period, the placenta will takes over hormone manufacturing round week 12 from the corpus luteum Sometimes, the failure earrly the corpus luteum to adequately support the earlu with progesterone can result in an early pregnancy loss. Or, second, you can collect your urine in a sterile cup and then hold the test into the urine for up to twenty seconds. Endometriosis affects women during their reproductive years and my contribute to infertility. Infertility information is your best resource for helping to pinpoint the cause of your infertility ...
Luteinizing Hormone-Regulated Genes and the Corticotropin Releasing Hormone/Urocortin-Receptor- Binding Protein System in the Primate Corpus Luteum during the Menstrual Cycle ...
Gecaj, Rreze M.; Schanzenbach, Corina I.; Kirchner, Benedikt; Pfaffl, Michael W.; Riedmaier, Irmgard; Tweedie-Cullen, Ry Y.; Berisha, Bajram (2017): The Dynamics of microRNA Transcriptome in Bovine Corpus Luteum during Its Formation, Function, and Regression. In: Frontiers in Genetics, Vol. 8, 213 [PDF, 2MB] ...
Sotiris, A. and Prokopiou, S. A. and Byrne, H. M. and Jeffrey, M. R. and Robinson, R. S. and Mann, G. E. and Owen, M. R. (2013) Mathematical analysis of a model for the growth of the bovine corpus luteum. Journal of Mathematical Biology . (Submitted) ...
Build: Wed Jun 21 18:33:50 EDT 2017 (commit: 4a3b2dc). National Center for Advancing Translational Sciences (NCATS), 6701 Democracy Boulevard, Bethesda MD 20892-4874 • 301-435-0888. ...
Fraenkel, Dieses Archiv. Bd. 68, 91. Zeitschr. f. Geburtsh. und Gynäk. Bd. 64. Zentralbl. f. Gyn. 1911. Nr. 46.Google Scholar ...
Marsh, Karen; Sliney, Kyle; La Barbera, Andrew R. (University of Cincinnati. College of Medicine; University of Cincinnati, 2007-02-06) ...
Dalam usaha perkembangbiakan ternak sapi, berbagai masalah dan hambatan sering ditemukan. Dalam kelompok ternak sapi, kadang - kadang diketemukan sapi yang tidak mampu bereproduksi sama sekali (steril) dans api yang kesuburannya menurun sehingga sulit bereproduksi kembali (infertil). Kegagalan reproduksi ini sering kurang mendapat perhatian, karena pengaruhnya tidak langsung dan tidak jelas meskipun apabial diperhitungkan maka kerugian yang ditimbulkannya cukup besar ...
Sboros V, Averkiou M, Lampaskis M, et al. Imaging of the Ovine Corpus Luteum Microcirculation with Contrast Ultrasound. Ultrasound in Medicine & Biology. 2011;37:59-68. doi:10.1016/j.ultrasmedbio.2010.10.013 ...
Corpus Albicans Definition - A corpus albicans is a mass of white scar tissue in the ovary that is formed after the degeneration of the corpus luteum...
Regumate is simply synthetic progesterone. It is typically ONLY needed for the first 90 days or so when the progesterone to maintain the pregnancy is being secreted by the corpus luteum (some mares just dont have sufficient progesterone at this point). Once the placenta takes over, Regumate just making expensive urine. The only way to KNOW is to run blood in the first couple of weeks after conception to see what the mares progesterone level is. You only "definitely" need it for a mare whose progesterone level, at about 25 days or so, is not sufficient to maintain the pregnancy ...
Regumate is simply synthetic progesterone. It is typically ONLY needed for the first 90 days or so when the progesterone to maintain the pregnancy is being secreted by the corpus luteum (some mares just dont have sufficient progesterone at this point). Once the placenta takes over, Regumate just making expensive urine. The only way to KNOW is to run blood in the first couple of weeks after conception to see what the mares progesterone level is. You only "definitely" need it for a mare whose progesterone level, at about 25 days or so, is not sufficient to maintain the pregnancy ...