The city of Leeds is located in north-central Alabama largely in Jefferson County; in recent years, it has expanded into both Shelby and St. Clair counties. A suburb of Birmingham in the Cahaba Valley, the city has a mayor/council form of government and was incorporated in 1887.
How long is a guinea pig pregnancy? The guinea pig pregnancy duration is long-approximately 59- 72 days (the average is 65 days) - the duration decreases with litter size (i.e. the smaller the litter, the longer the pregnancy).The mean length of pregnancy for a litter of 1 guinea pig is 70 days; for a litter of 6 guinea pigs its 67 days.First litters tend to be smaller than subsequent litters.ow long is a guinea pig pregnancy? The guinea pig pregnancy duration is long-approximately 59- 72 days (the average is 65 days) - the duration decreases with litter size (i.e. the smaller the litter, the longer the pregnancy).
Growth. Guinea pigs grow very rapidly, and will double in size to around 15-20 cm (6-8 inches) after just 8 weeks. After this point their growth will slow somewhat, but they will still get significantly larger in a fairly short period of time, reaching around 20-25 cm (8-10 inches) after 16 weeks.t birth, a guinea pig will generally measure around 8-10 cm (3-4 inches). You should expect some natural variation in size between the animals in a litter, with some bigger than others. The number of pups in the litter also has an effect on how big each baby is-a larger litter will tend to produce smaller offspring.