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Canine sperm can live for 10 to 11 days [22] in the oviducts (fallopian tubes) so if a female is bred 10 days before the oocytes (eggs) can be fertilized, she will appear to have a gestation length of 70 days. If she is bred on the day the oocytes can be fertilized, her gestation length will appear to be 60 days long.
Hematospermia (also known as haematospermia, hemospermia, or haemospermia) is the presence of blood in the ejaculate. It is most often a benign symptom. [1] Among men age 40 or older, hematospermia is a slight predictor of cancer, typically prostate cancer. [2] No specific cause is found in up to 70% of cases. [3]
Dog sperm collection. In order to collect semen from a male dog, an artificial vagina is prepared, [15] [16] which is a conical thin latex sleeve ending in a sterile collection tube. The inside of the latex sleeve is lightly lubricated. [17] The male is allowed to sniff a female in estrus. Experienced studs cooperate readily in the process.
Some of the blood products are from dogs like Augustus, a 55-pound Belgian Malinois whose owner signed him up to donate blood at a canine community blood bank, which is modeled after the human ...
Ovulation occurs 24–48 hours after the luteinizing hormone peak, which occurs around the fourth day of estrus; therefore, this is the best time to begin breeding. Proestrus bleeding in dogs is common and is believed to be caused by diapedesis of red blood cells from the blood vessels due to the increase of the estradiol-17β hormone. [20]
A urine specimen may be collected, and is likely to demonstrate blood within the urine. [9] Laboratory examination of seminal vesicle fluid requires a semen sample, e.g. for semen culture or semen analysis. Fructose levels provide a measure of seminal vesicle function and, if absent, bilateral agenesis or obstruction is suspected. [13]
The force and amount of semen that is ejected during ejaculation varies widely among men, containing between 0.1 and 10 milliliters [16] (for comparison, a teaspoon holds 5 ml and a tablespoon, 15 ml). Adult semen volume is affected by the time that has passed since his previous ejaculation; larger semen volumes develop with longer abstinence.
[20] [21] [22] GonaCon has been studied in male and female dogs and cats but does not provide long-acting suppression of fertility in these species. In dogs in particular, injection site reactions preclude use of the EPA approved formulation. [23] [24] Zona pellucida vaccines are targeted at females and do not suppress fertility in dogs or cats ...