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Some species, such as cats, cows and domestic pigs, are polyestrous, meaning that they can go into heat several times per year. Seasonally polyestrous animals or seasonal breeders have more than one estrous cycle during a specific time of the year and can be divided into short-day and long-day breeders:
List of mammalian gestation durations. This is a collection of lists of mammal gestation period estimated by experts in their fields. The mammals included are only viviparous (marsupials and placentals) as some mammals, which are monotremes (including platypuses and echidnas) lay their eggs. A marsupial has a short gestation period, typically ...
F1 generation Savannahs are very difficult to produce, due to the significant difference in gestation periods between the serval and a domestic cat (75 days for a serval and 65 days for a domestic cat) and incompatibilities between the two species' sex chromosomes. Pregnancies are often absorbed or aborted, or kittens are born prematurely.
Domestic cat (Felis catus) The Ragdoll is a breed of cat with a distinct colorpoint coat and blue eyes. Its morphology is large and weighty, and it has a semi-long and silky soft coat. American breeder Ann Baker developed Ragdolls in the 1960s. They are best known for their docile, placid temperament and affectionate nature.
A cat registry or cat breed registry, also known as a cat fancier organization, cattery federation, or cat breeders' association, is an organization that registers domestic cats (usually purebred) of many breeds, for exhibition and for breeding lineage tracking purposes. A cat registry stores the pedigrees (genealogies) of cats, cattery names ...
By 1948, she was one of three breeders independently crossing the Persian and Siamese to create the Himalayan cat. [3] Separate US-based breeding efforts had begun around 1950, [2] and a breeder known to sources simply as Mrs. Goforth received breed recognition from the Cat Fanciers' Association (CFA) near the end of 1957 for the Himalayan. [2]
The estimated date of delivery (EDD), also known as expected date of confinement, [1] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [2] Normal pregnancies last between 38 and 42 weeks. [3] Children are delivered on their expected due date about 4% of the time.
The Manx cat (/ ˈmæŋks /, in earlier times often spelled Manks) is a breed of domestic cat (Felis catus) originating on the Isle of Man, with a mutation that shortens the tail. Many Manx have a small stub of a tail, but Manx cats are best known as being entirely tailless; this is the most distinguishing characteristic of the breed, along ...