There are many references suggesting that donkeys and mules have a greater tendency to bleed after castration. It is believed that the larger testicles result in larger blood vessels supplying the testicles and thus a greater amount of tissue to remove during castration and a subsequent greater chance of blood lose.
Mules can be either male or female, but, because of the odd number of chromosomes, they can't reproduce. However, a male mule should be gelded in order to make him a safe and sociable animal. Except for the long ears, mules look very similar to horses, but their muscle composition is different.
A female horse and a male donkey have a mule. But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs.
A male mule is properly called a "horse mule", though often called a "john mule", which is the correct term for a gelded mule. A young male mule is called a "mule colt", and a young female is called a "mule filly".
Sex: Male is a 'horse mule' (also known as a 'john' or 'jack'). Female is a 'mare mule' (also known as a 'molly'). Young: A 'colt' (male) or 'filly' (female).
The most likely reason that mares lie down after mating is because they are overwhelmed and need to rest to bring their heart rate back down to normal levels. Stallions can be aggressive and hyperactive when courting and mating, and horses are socially sensitive creatures.
Befuddling Birth: The Case of the Mule's Foal Mules — the offspring of female horses and male donkeys — are generally sterile and can't reproduce. But a female mule in Colbran, Colo., has recently become a mother, and her owners are trying to figure out how it happened.
A cryptorchid, also called a ridgling, is a male horse in which one or both testicles do not descend into the scrotum.
Stallions are fully grown male horses that have testicles. They are usually called stallions when they are over 4 years of age, even though younger stallions can be fertile and reproduce.
Once a stallion has been castrated, he can no longer reproduce. A vet removes both testicles and all of the supporting structures.
But while mules have turned out to be extremely valuable work animals, neither mules nor hinnies can mate among themselves to produce their own offspring because of their odd origins. Here's why: Humans have 23 pairs of chromosomes, which enable your genetic information to be passed on to your children.
MULE. A mule is a cross between a male donkey and a female horse. The male mule is called a jack and the female is a jennet or a jenny. A smaller cross, the hinny, is from a male horse and a female donkey.
It is not uncommon for female mules to come into estrus and for male mules to display signs of teasing other female equine when in estrus. Most mule owners will castrate male mules, and some will even spay female mules (remove the ovaries) in hopes of changing behavior associated with estrus or aggression.
The main cause of the sterility of mules and hinnies is probably related to failure of pairing of homologous chromosomes at meiosis during spermatogenesis (Wodsedalek, 1966; Taylor and Short, 1973; Chandley et al., 1974; 1975).
All male mules (johns) and most female mules (mollies) can't reproduce. But why are mules sterile? The key is in the chromosomes.
Molly: The term used to describe a female mule. John: The term used to describe a male mule. Foal: This term is used for a baby equid (<12 months old), including donkeys, horses and mules. Pace: The collective name for a group of donkeys.
Male horses that are not intended for use as breeding stock are usually castrated, also referred to as gelding. Gelding a horse involve the removal of both testicles, the epididymis and part of the spermatic cord that supplies blood and nerves and houses the ductus deferens to the testicles.
Flatten your back by rolling your pelvis under you, then arch your back so that you are sitting on your crotch. Do this several times in succession until you feel what happens to your seat bones when you do this.
It may be that overstimulation of the dopamine pathway is causing the horses to become hyperaroused. Alternatively, spontaneous erections have been cited in the literature as a comfort behaviour, and Franzin has considered that dropping may simply be a sign of relaxation.
Intersexuality is a rare congenital anomaly of horses. Diagnosis of intersexuality is difficult because there are usually no specific changes in the reproductive tract visible.
Male horses – known as stallions, geldings or colts depending on whether their manhood is still intact – far outnumber females – called fillies – on the track.
Castration is a surgical procedure performed by a veterinarian that is defined as the removal of the testicles of a male horse. The procedure can be accomplished through sedation and local anesthesia in a standing position or through general anesthesia and the horse lying on its side (lateral recumbency).
The normal GL reference for mule pregnancies was 316.9-365.3 days. Therefore, GL of equine pregnancies was longer than of mule pregnancies. Gestational length was not different when pregnancies resulted in females or males within each group.
Key Physical Differences Between Mules And Horses
Mules are smaller and stockier than horses, but tend to be much stronger! The most distinctive difference between mules and horses is the mule's status as a genetic hybrid.
Although the average lifespan for mules is between 35 and 40 years, some mules have been known to live until 50, especially if well looked after.