sheep

Question 1

1) How do we name the adult female?

Answer 1

ewe

Question 2

2) How do we name the adult intact male?

Answer 2

rom or tup

Question 3

3) How do we name the adult neutered male?

Answer 3

wether

Question 4

4) How do we name the young sheep?

Answer 4

lamb

Question 5

5) Age of puberty

Answer 5

ewe- 6-8 months

ram - 4-6 months

Question 6

6) Females are polyestrous or monoestrous?

Answer 6

polyestrus

Question 7

7) Females are seasonal or non seasonal?

Answer 7

seasonal

Question 8

8) When is the breeding season, if any?

Answer 8

short day breeders, fall-winter

Question 9

9) Length of estrous cycle

Answer 9

17 days

Question 10

10) Length of estrus period:

Answer 10

24 to 36 hours

Question 11

11) What is the best time to do mating?

Answer 11

9 to 12 hours after onset of estrus

Question 12

12) How do we detect the estrus period?

Answer 12

not easily detected, seek out ram, stand to be mounted by ram and other ewes

Question 13

13) Is artificial insemination done? If yes, explain the method.

Answer 13

yes, vaginal insemination and intrauterine laparoscope insemination

Question 14

14) What is a pessary? Give one reason for using this item in female sheep.

Answer 14

small solid block inserted into vagina to treat infection or as a way of contraceptive sponge = progesterone to induce estrus

Question 15

15) Pregnancy length:

Answer 15

150 days av

Question 16

16) Describe the type of placenta

Answer 16

cotyledonary

Question 17

17) How do we detect pregnancy? Give 2 different methods.

Answer 17

ultrasound, rectal palpation

Question 18

18) How do we name the parturition?

Answer 18

lambing

Question 19

19) How long lasts the parturition

Answer 19

5 hours

Question 20

litter size

Answer 20

1-3

Question 21

what is the ram effect

Answer 21

ewes in anestrus are stimulated by the suddenly intro of a ram. they produce pheromones to stimulate estrus.

Question 22

22) Give one species characteristic concerning the anatomy of the penis.

Answer 22

sigmoid flexure, glands penis, urethral process

Question 23

23) Describe 2 conditions that could cause infertility in the male.

Answer 23

poor nutrition, heat stress

Question 24

24) Discuss about the different breed types (breed categories).

Answer 24

wool
meat
dairy