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Electro-ejaculator
Electroejaculation is a procedure used to obtain semen samples from sexually mature male mammals. The procedure is used for breeding programs and research purposes in various species, as well as in the treatment of ejaculatory dysfunction in human males. This procedure is used frequently with large mammals, particularly bulls and some domestic animals, as well as humans who have certain types of anejaculation. Electroejaculation has also been used for the cryoconservation of animal genetic resources, where semen is stored in low temperatures with the intent of conserving genetic material and future revival. In the practice of veterinary medicine and animal science, it is common to collect semen from domestic ruminants using electro-ejaculation without sedation or anesthesia. Only in goats is mild sedation sometimes used. Because of the significant skeletal muscle contractions it causes, electroejaculation is not used in stallions — except in rare cases, under general anesthesi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frozen Bovine Semen
Frozen bovine semen is a method of preserving bovine semen for future artificial insemination, even after the death of the donor. History The early artificial insemination organizations were largely farmer-owned cooperatives. The first such cooperative in America was organized at Clinton, New Jersey, through efforts of Enos J. Perry, Extension Dairyman, New Brunswick, and began operations May 17, 1938. It began operations with 102 members and 1,050 cows enrolled. Using frozen semen for dairy cattle has been done since the 1950s. The oldest semen believed to be in existence was from a sire named Cottonade Emmet, who was a member of the American Breeders Service sire battery in 1952. Semen was collected on Emmet in November 1952 and has been used several times to produce offspring. However, the last time any such offspring was born was in the mid-1980s. Osborndale Ivanhoe, who was probably the most famous Holstein bull of the early semen era, died in November 1963. From time t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semen Collection
Semen collection refers to the process of obtaining semen from human males or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in fertility clinics). Semen can be collected via masturbation (e. g., from stallions and canids), prostate massage, artificial vagina, penile vibratory stimulation (vibroejaculation) and electroejaculation. Semen can be collected from endangered species for cryopreservation of genetic resources. By species Humans Methods of semen collection from humans include: * Masturbation, directing the sample into a clean cup. This is the most common way to collect a semen sample. * Sexual intercourse using a special type of condom known as a collection condom. Collection condoms are made from silicone or polyurethane, as latex is somewhat harmful to sperm. Many men prefer collection condoms to masturbation, and some religions prohibit masturbation entirely. Adherents of religions that prohibit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blogger (service)
Blogger is an American online content management system founded in 1999 which enables multi-user blogs with time-stamped entries. Pyra Labs developed it before being acquired by Google in 2003. Google hosts the blogs, which can be accessed through a subdomain of blogspot.com. Blogs can also be accessed from a user-owned Domain name, custom domain (such as www.example.com) by using Domain Name System, DNS facilities to direct a domain to Google's servers. A user can have up to 100 blogs or websites per account. Google Blogger also enabled users to publish blogs and websites to their own web hosting server via File Transfer Protocol, FTP until May 1, 2010. All such blogs and websites had to be redirected to a blogspot.com subdomain or point their own domain to Google's servers via Domain Name System, DNS. Google Blogger has a wide international user base and is available in more than 60 languages, despite its decline in popularity in the United States. History Pyra Labs launched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejaculation
Ejaculation is the discharge of semen (the ''ejaculate''; normally containing sperm) from the male reproductory tract as a result of an orgasm. It is the final stage and natural objective of male sexual stimulation, and an essential component of natural conception. In rare cases, ejaculation occurs because of prostatic disease. Ejaculation may also occur spontaneously during sleep (a nocturnal emission or "wet dream"). ''Anejaculation'' is the condition of being unable to ejaculate. Ejaculation is usually very pleasurable for men; '' dysejaculation'' is an ejaculation that is painful or uncomfortable. Retrograde ejaculation is the condition where semen travels backwards into the bladder rather than out the urethra. Phases Stimulation A usual precursor to ejaculation is the sexual arousal of the male, leading to the erection of the penis, though not every arousal nor erection leads to ejaculation. Penile sexual stimulation during masturbation or vaginal, anal, oral, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Breeding
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of livestock. Selecting for breeding animals with superior EBV in growth rate, egg, meat, milk, or wool production, or with other desirable traits has revolutionized livestock production throughout the entire world. The scientific theory of animal breeding incorporates population genetics, quantitative genetics, statistics, and recently molecular genetics and is based on the pioneering work of Sewall Wright, Jay Lush, and Charles Roy Henderson, Charles Henderson. Breeding stock Breeding stock is a group of animals used for the purpose of planned breeding. When individuals are looking to breed animals, they look for certain valuable traits in purebred animals, or may intend to use some type of crossbreeding to produce a new type of stock with different, and presumably super abilities in a given area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproduction In Mammals
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism. Asexual reproduction is not limited to single-celled organisms. The cloning of an organism is a form of asexual reproduction. By asexual reproduction, an organism creates a genetically similar or identical copy of itself. The evolution of sexual reproduction is a major puzzle for biologists. The two-fold cost of sexual reproduction is that only 50% of organisms reproduce and organisms only pass on 50% of their genes.John Maynard Smith ''The Evolution of Sex'' 1978. Sexual reproduction typically requires the sexual interaction of two speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrology
Andrology (from grc, ἀνήρ, ''anēr'', genitive , ''andros'', "man"; and , ''-logia'') is a name for the medical specialty that deals with male health, particularly relating to the problems of the male reproductive system and urological problems that are unique to men. It is the counterpart to gynaecology, which deals with medical issues which are specific to female health, especially reproductive and urologic health. Process Andrology covers anomalies in the connective tissues pertaining to the genitalia, as well as changes in the volume of cells, such as in genital hypertrophy or macrogenitosomia. From reproductive and urologic viewpoints, male-specific medical and surgical procedures include vasectomy, vasovasostomy (one of the vasectomy reversal procedures), orchidopexy and circumcision as well as intervention to deal with male genitourinary disorders such as the following: History Unlike gynaecology, which has a plethora of medical board certification programs worldw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JoGayle Howard
JoGayle Dillon Howard (1951–2011) was an American zoologist and theriogenologist specializing in the captive breeding of endangered species such as pandas, clouded leopards, and black-footed ferrets. Biography Howard was born on May 20, 1951, in Dallas, Texas. She graduated with a doctorate in veterinary medicine from Texas A&M in 1980. She earned a PhD in reproductive physiology from University of Maryland in 1989. Dr. Howard received her D.V.M. from Texas A&M University in 1980, and Ph.D. from the University of Maryland in 1989. Originally a veterinarian, Howard later became an expert in animal breeding, receiving the nickname "Sperm Queen".” She used common human infertility treatments, like artificial insemination and In vitro fertilisation, and was a pioneer in electroejaculation techniques. In 1980, she began working at the Smithsonian Conservation Biology Institute in Washington, D.C. She oversaw the black-footed ferret breeding program at The National Zoo. With h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vibroejaculation
Vibroejaculation (or penile vibratory stimulation) is a means of inducing ejaculation through vibration. It is used for semen collection, and in humans, the management of anejaculation. One method of penile vibratory stimulation is the use of specialised devices that are placed around the glans penis to stimulate it by vibration. Alternatively, a powerful wand vibrator of the type used as sex toy A sex toy is an object or device that is primarily used to facilitate human sexual pleasure, such as a dildo, artificial vagina or vibrator. Many popular sex toys are designed to resemble human genitals, and may be vibrating or non-vibrating ...s can be used. See also * Electroejaculation References Ejaculation inducing devices {{med-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semen Collection
Semen collection refers to the process of obtaining semen from human males or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in fertility clinics). Semen can be collected via masturbation (e. g., from stallions and canids), prostate massage, artificial vagina, penile vibratory stimulation (vibroejaculation) and electroejaculation. Semen can be collected from endangered species for cryopreservation of genetic resources. By species Humans Methods of semen collection from humans include: * Masturbation, directing the sample into a clean cup. This is the most common way to collect a semen sample. * Sexual intercourse using a special type of condom known as a collection condom. Collection condoms are made from silicone or polyurethane, as latex is somewhat harmful to sperm. Many men prefer collection condoms to masturbation, and some religions prohibit masturbation entirely. Adherents of religions that prohibit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horse Breeding
Horse breeding is reproduction in horses, and particularly the human-directed process of selective breeding of animals, particularly purebred horses of a given breed. Planned matings can be used to produce specifically desired characteristics in domesticated horses. Furthermore, modern breeding management and technologies can increase the rate of conception, a healthy pregnancy, and successful foaling. Terminology The male parent of a horse, a stallion, is commonly known as the ''sire'' and the female parent, the mare, is called the ''dam''. Both are genetically important, as each parent genes can be existent with a 50% probability in the foal. Contrary to popular misuse, "colt" refers to a young male horse only; "filly" is a young female. Though many horse owners may simply breed a family mare to a local stallion in order to produce a companion animal, most professional breeders use selective breeding to produce individuals of a given phenotype, or breed. Alternatively, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erotic Electrostimulation
Erotic electrostimulation (abbreviated erotic e-stim and also known as electrosex) is a sexual practice involving the application of electrical stimulation to the nerves of the body, with particular emphasis on the genitals, using a power source (such as a TENS, EMS, violet wands, or made-for-play units) for purposes of sexual stimulation. Electrostimulation has been associated with BDSM activities, and erotic electrostimulation is an evolution of that practice. Safety Electrostimulation, in general, can cause tissue damage or even death if misused. The most common problems arising from electrostimulation tend to be burns from lack of sufficiently wide surface contact, i.e. bad contact, between the electrode and the skin's surface. Even at relatively low current and voltage, there is also risk of interference with normal heart function (potentially including cardiac arrest), and this risk is higher for those who use an artificial pacemaker or similar device or who have heart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
