Animal development Flashcards

(9 cards)

1
Q

stages of development

A

Fetal- birth-puberty-conception, pregnancy, lactation

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2
Q

what day does fetal development start

A

30 days gestation

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3
Q

primary sprout

A

during fetal development, the gland cistern, teat cistern, streak canal form

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4
Q

secondary sprouts and tertiary sprouts

A

fetal development the duct system forms

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5
Q

isometric growth

A

rate of growth of the mammary gland =overall growth

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6
Q

allometric growth

A

rate of growth exceeds that of the body

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7
Q

when does the ductal system close over and there is isometric growth

A

birth to puberty

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8
Q

effect of rising estrogen

A

allometric growth, and proliferation and expansion of the ductal system

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9
Q

what happens when dairy cattle get excess energy in their diet during birth to puberty?

A

can impair mammary development and reduce milk production in subsequent lactations in dairy cattle

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