Superovulation and Embryo Transfer

Question 1

Embryo means (fertile/infertile)

Answer 1

Fertile!

Question 2

What hormone is used to induce super ovulation?

Answer 2

FSH

Question 3

Which type of cattle (Bos) requires the largest FSH dosage?

Answer 3

Bos Taurus > Bos Indicus > Heifers

Question 4

What are the 5 steps of embryo transfer in cows

Answer 4

1. synchronization
2. superovulation
3. inseminate donor
4. recovery and identification of viable embryos
5. transfer of viable embryos into synchronized recipients

Question 5

What are the 3 criteria for classifying embryos?

Answer 5

1. even number of cells
2. uniform division
3. healthy zona pellucida

Question 6

(T/F) When placing a viable embryo in the uterine horn of a recipient, we place it ipsilateral to the CL

Answer 6

True!

Question 7

What day are embryos transferred?
What stage is the embryo in?
Why is this significant?

Answer 7

Day 7
Early blastocyst
They still have a zona pellucida, which is needed to attach to the uterine wall