Expression Systems and Species Used for Transgenic Animal Bioreactors

Table 4

Comparison of transgenic milk expression systems in different species.

Species	Gestation (months)	Maturation (months)	Milk yield per lactation (L)	Elapsed months from microinjection to milk
Mouse	0.75	1	0.0015	3–6
Rabbit	1	5-6	1–1.5	7-8
Pig	4	7-8	200–400	15-16
Sheep	5	6–8	200–400	16–18
Goat	5	6–8	600–800	16–18
Cow	9	15	6000–8000	30–33