How long does pregnancy in cats? As it flows?
On the question of how long does pregnancy in cats in the literature is given a precise answer: “the Average length of pregnancy in cats is nine weeks.” However, this is only conditional numbers (and nine months in humans). When a normal pregnancy in a cat is carrying the offspring of fifty-eight to seventy-two days. What determines the different stages of pregnancy and how it occurs? Let’s face it.
Different stages of pregnancy
First, it argued that short-haired and long-haired cats pregnancy different. And although the scientific justification of this fact is not found, it is the place to be. So, for example, it is seen that usually (but not always!) long-haired cats carry their kittens for longer. They have a pregnancy lasts from sixty-three to seventy-two days. Shorthair expect the offspring produced from fifty-eight to sixty eight days. While Siamese and Abyssinian cats (allegedly!) carrying the kittens longer than usual.
The gestation of cats depends on the number of hatched kittens. Large litters often cause more short of pregnancy. And if the cat is carrying more than five kittens, and she gives birth to their early average period. But childbirth even very large litters (eight to twelve kittens), the bottom bracket started early in the pregnancy (less than 58 days) are considered pathological. Such premature kittens often don’t survive.
Cause a prolonged pregnancy and a small number of young in a litter, and stress experienced by a pregnant cat in the last period of gestation of kittens. At the same time, delay in delivery by one week is considered acceptable and on the health of newborns is not affected. However, a longer delay requires human intervention, otherwise things can end in tears. But in any case to control the timing of pregnancy the owner may only if he knows the exact date of mating and, consequently, the conception, which takes place a day or two after mating. This is the “starting point” of the pregnancy.
Pregnancy cats can be divided into three main periods.
After conception the fertilized egg (zygote) is attached (implanted) to the uterus and during the first week, the cell reaches the size of the dust particles with a diameter of three tenths of a millimeter. During this period, future kitty more like an empty vial with a knot. The bubble will then participate in the formation of the placenta, and the “knot” will develop into a fetus.
- Interesting! Biologists have found that the point of attachment for each embryo individually determined in advance and depends on the sex of the kitten.
Each kitten develops in an individual cocoon, called the “chorion”. This cocoon is surrounded by a placenta that provides nutrition to the fetus. The placenta is covered with villi, the number of which is adjusted by the rate of growth of the embryo.
- Interesting! If the villi of a single placenta straighten, the area is five square meters. If in this period intertwined the villi of the placentas of different sexes of kittens, then the light will be about hermaphrodites.
By the fifteenth day of pregnancy the embryo reaches the size of from two to ten millimeters. He becomes the visible head, and there are the beginnings of the brain. The eighteenth day legs begin to form. To the twenty-first day of pregnancy formed the beginnings of the auditory channels, the pigmentation appears future eyes, begin to develop internal organs. It was at this time becoming visible external signs of pregnancy: the cat turn pink and growing nipples.
Over this period, the embryo turns into a fetus and becomes like a very small cat. How does it happen? First, the embryo is formed the upper lip, earlobes and fingers. Continue to develop a skeleton, muscles, and internal sex organs. Is formed spinal cord, jaws, tongue, palate. Begins to develop hormonal system.
By the end of the second trimester formed the face: cheeks, chin, nose and mouth. Bones begin to get enough calcium and are formed teeth (deep jaws). The internal organs are placed at designated places, increases the head, eyelids and triangular ears. The head developed cheeks, chin, nose and mouth. Formed external genitalia, and the fingers of the claws appear.
- Interesting! Cats develop faster seals. And the number of fetuses in this period is difficult to determine.
The last stage of pregnancy cat. At the beginning of this period, the fetus grows to eight inches. The skin becomes thicker and gathers in folds, increase the ears, and longer tail. The forty-fourth day, more silky, and even after four days it becomes color. At this time the fruit gets up to twelve inches.
From the fifty-eighth day the formation of the fetus is considered completed and all the remaining days precede childbirth. Twelve hours (or even days) before the birth rectal temperature of a cat is reduced to thirty seven and a half degrees, and the prenatal period can last up to a day.
A normal healthy cat will give birth without problems precisely within the nature of time. And exactly how many days it will last her pregnancy, dependent on the most pussy. However, safely flowing pregnancy in cats can not last longer than seventy-two days and less than fifty-eight. On average, the cat is carrying the offspring of two months. And that’s interesting!
- Puberty cats reach five months, and the cats only to nine.
- In my life a cat can have more than a hundred kittens.
- The average cat produces two or three litters a year.
- In one litter can be born kittens from different fathers.
- The offspring of a single pair of cats in seven years will reach four hundred twenty thousand individuals.
Truly amazing animals!