Animal development
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stages of development
Fetal- birth-puberty-conception, pregnancy, lactation
what day does fetal development start
30 days gestation
primary sprout
during fetal development, the gland cistern, teat cistern, streak canal form
secondary sprouts and tertiary sprouts
fetal development the duct system forms
isometric growth
rate of growth of the mammary gland =overall growth
allometric growth
rate of growth exceeds that of the body
when does the ductal system close over and there is isometric growth
birth to puberty
effect of rising estrogen
allometric growth, and proliferation and expansion of the ductal system
what happens when dairy cattle get excess energy in their diet during birth to puberty?
can impair mammary development and reduce milk production in subsequent lactations in dairy cattle