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Exotic Animal Formulary5

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Table 9-13

Reproductive Data for Rodents. 13,31,41,74

Estrus

Age

Separate

Species

Cycle

Length

(days)

Gestation

(days)

Litter

Size

Birth

Weight

(g)

Eyes

Open

(days)

Weaning

Age

(days)

Breeding

Life

Chinchilla 30-50 105-115 1-4 30-50 birth 36-48 — —

Degu 18-21 87-93 1-10 10-20 2-3 35-42 — —

Gerbil 4-6 24-26 1-12 2.5-3.5 16-20 21-28 15-20

months

No (mate

Guinea

pig

15-19 59-72 2-5 60-100 birth 21-28 3-4 years No

Hamster 4-5 15-22 4-12 2 14-16 20-28 11-18

months

Mouse 4-5 19-21 10-12 0.5-1.5 10-14 21-28 12-18

months

Yes

No

Prairie

dog

14-21 33-38 1-10 15 14 37-51 — —

Rat 4-5 19-23 6-12 5-6 12-17 17-21 14 months No

693

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