Mate choice inside an egg cell.
... his ideas to account for elaborate pre-copulatory sexual displays and preferences, his ideas have since been expanded to include forms of post-copulatory choice, such as sperm competition (Parker 1970) and cryptic female choice (Thornhill 1983). Sperm competition occurs when sperm from multiple male ...
... his ideas to account for elaborate pre-copulatory sexual displays and preferences, his ideas have since been expanded to include forms of post-copulatory choice, such as sperm competition (Parker 1970) and cryptic female choice (Thornhill 1983). Sperm competition occurs when sperm from multiple male ...
Women`s Clinic Ltd. observes 20 years of its in vitro fertilization
... No guarantees- but after four attempts along came Amber and Meghan, now 13-month-old twins who couldn't have made their parents prouder or happier. The family recently joined dozens of other parents and children at a 20th anniversary celebration of the in vitro program at Reading Hospital. "Meghan i ...
... No guarantees- but after four attempts along came Amber and Meghan, now 13-month-old twins who couldn't have made their parents prouder or happier. The family recently joined dozens of other parents and children at a 20th anniversary celebration of the in vitro program at Reading Hospital. "Meghan i ...
The Male Reproductive System
... Obstruction in Vas Deferens or Epididymis -STI’s , varicose veins etc, may cause obstructions in the vas deferens causing sperm to not be released from the male and into the female. No fertilization results. ...
... Obstruction in Vas Deferens or Epididymis -STI’s , varicose veins etc, may cause obstructions in the vas deferens causing sperm to not be released from the male and into the female. No fertilization results. ...
writeup ideals - Pregna International
... Few, if any, fertilized ova actually reach the endometrium. Studies also suggest that medicated IUDs containing copper interfere with sperm motility and integrity. Hormonal IUDs also interfere with sperm motility via thickening cervical mucus. Thus, the weight of current evidence suggests that the m ...
... Few, if any, fertilized ova actually reach the endometrium. Studies also suggest that medicated IUDs containing copper interfere with sperm motility and integrity. Hormonal IUDs also interfere with sperm motility via thickening cervical mucus. Thus, the weight of current evidence suggests that the m ...
The impact of sperm metabolism during in vitro storage: the stallion
... oxidative stress are never going to be beneficial, they may be indicative of an extremely fertile sample while remaining at sub-clinical levels. A major implication of this phenomenon is that semen assessments must be performed as close as possible to the time of collection to avoid ROS-induced arte ...
... oxidative stress are never going to be beneficial, they may be indicative of an extremely fertile sample while remaining at sub-clinical levels. A major implication of this phenomenon is that semen assessments must be performed as close as possible to the time of collection to avoid ROS-induced arte ...
Low Risk Pregnancy 1 Notes - straightanursingstudent.com
... • Center of gravity changes (safety issue). If a woman wears high heels this will make backache worse. Backache is due to attachments of uterus...two of them tie directly into the back. • Separation of rectus abdominus. These muscles hold you upright and are very important! Babies need to spend all ...
... • Center of gravity changes (safety issue). If a woman wears high heels this will make backache worse. Backache is due to attachments of uterus...two of them tie directly into the back. • Separation of rectus abdominus. These muscles hold you upright and are very important! Babies need to spend all ...
PowerPoint_Chapter18
... other treatment to the specific cause for infertility • Ovulation induction: process of using hormones to stimulate ovaries to produce and release multiple ova • Artificial insemination: process that introduces semen containing sperm into a woman’s uterus during ovulation • In vitro fertilization: e ...
... other treatment to the specific cause for infertility • Ovulation induction: process of using hormones to stimulate ovaries to produce and release multiple ova • Artificial insemination: process that introduces semen containing sperm into a woman’s uterus during ovulation • In vitro fertilization: e ...
vasectomy - Urology Team
... examination. The operation will be described completely to the patient's satisfaction. If both the patient and the physician are in agreement, the vasectomy will be scheduled at their mutual convenience. ...
... examination. The operation will be described completely to the patient's satisfaction. If both the patient and the physician are in agreement, the vasectomy will be scheduled at their mutual convenience. ...
Fertility Facts
... they will first be fertilized in the laboratory with your partner’s sperm to create embryos. The embryos are transferred to your uterus. I n Vitro Fertilization (IVF)—If you have a low ovarian reserve (low egg count) you may want to consider undergoing an IVF cycle to remove mature eggs so they can ...
... they will first be fertilized in the laboratory with your partner’s sperm to create embryos. The embryos are transferred to your uterus. I n Vitro Fertilization (IVF)—If you have a low ovarian reserve (low egg count) you may want to consider undergoing an IVF cycle to remove mature eggs so they can ...
Policy for Fertility Asse~et Version_July 2012
... Couples with mild male factor fertility problems, unexplained fertility problems or minimal to mild endometriosis should be offered up to three cycles of intrauterine insemination because this increases the chance of pregnancy. ...
... Couples with mild male factor fertility problems, unexplained fertility problems or minimal to mild endometriosis should be offered up to three cycles of intrauterine insemination because this increases the chance of pregnancy. ...
Semex Sires Top SCR Rankings
... In August 2008 a new and more accurate fertility evaluation system called SCR (Sire Conception Rate) was released. SCR rankings are based on artificial insemination data collected from US dairy farms, replacing Estimated Relative Conception Rates or ERCR. The SCR, which includes confirmed pregnancy ...
... In August 2008 a new and more accurate fertility evaluation system called SCR (Sire Conception Rate) was released. SCR rankings are based on artificial insemination data collected from US dairy farms, replacing Estimated Relative Conception Rates or ERCR. The SCR, which includes confirmed pregnancy ...
What is emergency contraception?
... sperm cannot pass through • Changes the environment of the uterus and fallopian tubes to prevent ...
... sperm cannot pass through • Changes the environment of the uterus and fallopian tubes to prevent ...
CAMBRIDGE GUIDE To infertility management and assisted
... implant successfully when it arrives at the uterine cavity as an embryo. Difficulty with conception will be experienced if any factor prevents the successful completion of these events. It is estimated that 80 out of 100 couples are able to achieve pregnancy within one year of having regular sexual in ...
... implant successfully when it arrives at the uterine cavity as an embryo. Difficulty with conception will be experienced if any factor prevents the successful completion of these events. It is estimated that 80 out of 100 couples are able to achieve pregnancy within one year of having regular sexual in ...
stud contract - J Bar T Ranch
... You may board your bitch with us and we will let our males breed her every other day until she is out of heat. We also have the ability to do in house progesterone testing and take her to our vet for quantitative progesterone testing (if wanted) and artificial inseminations. These services have an a ...
... You may board your bitch with us and we will let our males breed her every other day until she is out of heat. We also have the ability to do in house progesterone testing and take her to our vet for quantitative progesterone testing (if wanted) and artificial inseminations. These services have an a ...
Nucleosomal structure of sea urchin and starfish sperm chromatin
... sperm cells have been chosen for such analysis since all the histones they contain, for exeption of histone H2B, seemed to be very similar as judged from their amino acid compositions and electrophoretic behavior in two systems. To verify the above we considered also the data available on the primar ...
... sperm cells have been chosen for such analysis since all the histones they contain, for exeption of histone H2B, seemed to be very similar as judged from their amino acid compositions and electrophoretic behavior in two systems. To verify the above we considered also the data available on the primar ...
Pregnancy and Birth
... not have her period. • This is the beginning of pregnancy. • Pregnancy is the time when a fertilized egg grows and develops into a baby in the woman’s uterus. ...
... not have her period. • This is the beginning of pregnancy. • Pregnancy is the time when a fertilized egg grows and develops into a baby in the woman’s uterus. ...
Fertilization - Formatted
... timing of spawning of eggs by females and shedding of sperms by male parent are very ...
... timing of spawning of eggs by females and shedding of sperms by male parent are very ...
developmental biology 5 fertilization Introduction: Special features of
... Among fresh water animals the timing of spawning of eggs by females and shedding of sperms by male parent are very specific. The sperms are delivered directly to the eggs immediately after laying. In marine forms the time interval between shedding of gametes may be longer by weeks or months. The tas ...
... Among fresh water animals the timing of spawning of eggs by females and shedding of sperms by male parent are very specific. The sperms are delivered directly to the eggs immediately after laying. In marine forms the time interval between shedding of gametes may be longer by weeks or months. The tas ...
DEVELOPMENTAL BIOLOGY 5 FERTILIZATION
... Among fresh water animals the timing of spawning of eggs by females and shedding of sperms by male parent are very specific. The sperms are delivered directly to the eggs immediately after laying. In marine forms the time interval between shedding of gametes may be longer by weeks or months. The tas ...
... Among fresh water animals the timing of spawning of eggs by females and shedding of sperms by male parent are very specific. The sperms are delivered directly to the eggs immediately after laying. In marine forms the time interval between shedding of gametes may be longer by weeks or months. The tas ...
Human Growth & Reproduction
... Identify what occurs during the first, second and third trimester's of pregnancy for the woman. What are the early signs of pregnancy? Differentiate between false positives and false-negative pregnancy tests (Are Braxton-Hicks contractions not part of the labor pains?). Describe and calculate gestat ...
... Identify what occurs during the first, second and third trimester's of pregnancy for the woman. What are the early signs of pregnancy? Differentiate between false positives and false-negative pregnancy tests (Are Braxton-Hicks contractions not part of the labor pains?). Describe and calculate gestat ...
Capacitation-associated Changes in Protein
... markers (Fermentas, #SM441) were run in parallel. For Western blot analysis, proteins were electroblotted and transferred onto PVDF (Sunshine, Cat#:66543-1) at 70 V at 4°C for 2.5 h. To block non-specific binding sites, the membrane was first blocked with 2% dry skimmed milk in PBS-T (PBS containing ...
... markers (Fermentas, #SM441) were run in parallel. For Western blot analysis, proteins were electroblotted and transferred onto PVDF (Sunshine, Cat#:66543-1) at 70 V at 4°C for 2.5 h. To block non-specific binding sites, the membrane was first blocked with 2% dry skimmed milk in PBS-T (PBS containing ...
Document
... • However, their ability to fertilize the ovum probably lasts no longer than 24 to 48 hours. • Pregnancy is unlikely to occur if a couple abstains from intercourse for 4 days before and for 3 or 4 days after ovulation (fertile period). • Work only in woman with regular menstrual periods • Depends of ...
... • However, their ability to fertilize the ovum probably lasts no longer than 24 to 48 hours. • Pregnancy is unlikely to occur if a couple abstains from intercourse for 4 days before and for 3 or 4 days after ovulation (fertile period). • Work only in woman with regular menstrual periods • Depends of ...
Why do sperm carry RNA? Relatedness, conflict
... relatedness. Clearly, this need not be only MHCs (which are vertebrate specific), but merely needs to involve factors that are variable across males, and we note that approximately half of the sperm RNAs appear to be variable across sperm samples [37]. Even if RNAs are not directly detectable extern ...
... relatedness. Clearly, this need not be only MHCs (which are vertebrate specific), but merely needs to involve factors that are variable across males, and we note that approximately half of the sperm RNAs appear to be variable across sperm samples [37]. Even if RNAs are not directly detectable extern ...
the print version
... 1. Why this brochure? Couples consult us because they are having problems conceiving. They have hope and expectations. This brochure can offer them guidance, give them something to hold on to. It provides accurate information about fertility, fertility problems, the various tests, examinations and ...
... 1. Why this brochure? Couples consult us because they are having problems conceiving. They have hope and expectations. This brochure can offer them guidance, give them something to hold on to. It provides accurate information about fertility, fertility problems, the various tests, examinations and ...
Artificial insemination
Artificial insemination (AI) is the deliberate introduction of sperm into a female's uterus or cervix for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment for humans, and is a common practice in animal breeding, including dairy cattle (see Frozen bovine semen) and pigs.Artificial insemination may employ assisted reproductive technology, sperm donation and animal husbandry techniques. Artificial insemination techniques available include intracervical insemination and intrauterine insemination. The primary beneficiaries of artificial insemination are heterosexual couples suffering from male infertility, lesbian couples and single women. Intracervical insemination (ICI) is the easiest and most common insemination technique and can be used in the home for self-insemination without medical practitioner assistance. Compared to natural insemination (i.e., insemination by sexual intercourse), artificial insemination can be more expensive and more invasive, and may require professional assistance.There are laws in some countries which restrict and regulate who can donate sperms and who is able to receive artificial insemination, and the consequences of such insemination. Subject to any regulations restricting who can obtain donor sperms, donor sperms are available to all women who, for whatever reason, want or need them. Some women living in a jurisdiction which does not permit artificial insemination in the circumstance in which she finds herself may travel to another jurisdiction which permits it. (See Sperm donation laws by country and fertility tourism.)