Unit 9-Estrous Sync and Heat Detection in Cattle

Question 1

MGA is fed for ____ days

Answer 1

14

Question 2

Estrous _____ is a managment tool

Answer 2

Synchronization

Question 3

Discharge indicating the end of standing heat

Answer 3

Bloody

Question 4

Surgically altered bull incapable of breeding

Answer 4

Gomer

Question 5

Implant NOT approved for lactating dairy cows

Answer 5

Ear

Question 6

Prostagladins implants can be give _____ days apart

Answer 6

11

Question 7

Average # of hours for standing heat

Answer 7

8

Question 8

Turns color when a cow is mounted

Answer 8

patch

Question 9

Short for corpus luteum

Answer 9

CL

Question 10

Cattle begin ____ 30-50 days after calving

Answer 10

cycling

Question 11

suppresses cycling activity

Answer 11

Progestertone

Question 12

Low milk progesterone levels indicate a cow in _____

Answer 12

Heat

Question 13

Trade name for oral compound to suppress heat

Answer 13

MGA

Question 14

______ causes the CL to rupture

Answer 14

Protagladins

Question 15

______ residues must be avoided in milk for human consumption

Answer 15

Drug

Question 16

Cycling stops when the cow is….

Answer 16

pregnant

Question 17

Beef producers use estrous synchronization to reduce _____

Answer 17

labor

Question 18

The primary methods of estrous sync. are what 4 things…

Answer 18

prostagladins injections; ear implants; oral administration; progestergen combined with prostagladins injections

Question 19

When an ear implant is removed after 9 days, cycling females are expected to be in heat w/i ____ days

Answer 19

3

Question 20

Heifers usually begin cycling at about ______ months of age and exhibit standing behavior every ____ days

Answer 20

12, 21

Question 21

The simplest way to detect if a cow is in heat is to make a ______ mark on the rump or tailhead

Answer 21

chalk

Question 22

Cattle showing a bloody discharge from the vulva are entering standing heat? t or f

Answer 22

False

Question 23

What behavior is the single best indicator of standing heat

Answer 23

Standing to be mounted by other animals