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Removal exam reviewer in genetics > Livestock Breeding And Selection > Flashcards

Livestock Breeding And Selection Flashcards

1
Q

produce the male gametes, the spermatozoans

A

Male reproduction organs

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2
Q

Male reproductive system ( bull)

A

Testes
Epididymis
Sperm ducts
Accessory gland
Penis

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3
Q

Testes?

A

Produce spermatozoa

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4
Q

Epididymis

A

Storage of spermatozoa

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5
Q

Sperm ducts?

A

Conveys sperm from the testis and urine through the penis

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6
Q

Seminal vesicles?

A

Produce fluid called semen

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7
Q

Prostate gland

A

Produce fluid that neutralize the acidic effects of urine in the urethra to preventing death of sperms.

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8
Q

Accessory gland

A

Include seminal vesicles cowpers gland and prostate gland

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9
Q

Urethra?

A

Conveys urine and semen

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10
Q

Penis

A

Sorrounded but the sheath which is an extension of skin.

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11
Q

Female reproductive system

A

Ovaries
Fallopian Tube
Vagina
Vulva
Uterus

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12
Q

Fallopian tube

A

Fertilization take place here

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13
Q

Uterus?

A

Implantation take place here and also embryo develops here

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14
Q

Ceervix of uterus

A

Close the uterus

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15
Q

Vulva?

A

External opening of female reproductive system

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16
Q

Pregnancy

A

Also called gestation period

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17
Q

Animal length days
Cow

A

270-285 days

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18
Q

Sow

A

113- 117days

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19
Q

Ewe/Goat

A

150 days

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20
Q

Rabbit

A

28-32 days

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21
Q

The reproductive system has the following parts: ( poultry)

A
  1. Ovary
  2. Funnel
  3. Magnum
  4. Isthmus
  5. Uterus/ shell gland
  6. Vaginal
  7. Cloaca
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22
Q

Ovary?

A

Produce ova/ eggs and hormones which control sexual cycle

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23
Q

Funnel

A

Fertilization occurs here

24
Q

Magnum?

A

Thick albumen is added ang stays for 3 hrs

25
Q

Isthmus

A

Shell membranes added and determines shape of egg.

26
Q

Uterus

A

Calcium deposit shell added around the egg.

27
Q

Vaginal

A

Temporal storage of the egg before laying

28
Q

Cloaca

A

Egg moves out of cloaca

29
Q

Important characteristic: when Scoring cows

A

Frame 15%
Dairy character 20%
Body Capacity 10%
Feet and Legs 15%
Udder 40%

30
Q

Skeletal structure of the cow

A

Frame

31
Q

Priority: Rump, stature..

A

Frame

32
Q

Rump highest priority….

A

Frame

33
Q

Indication of milking ability
Efficient in converting feed to milk

A

Dairy character

34
Q

Factors To Consider When Selecting A Breeding Stock.

A

Age
Level of performance
Physical fitness
Health
Body conformation
Temperament or Behavior
Quality of products
Mothering Ability
Adaptability
Prolificacy

35
Q

Breeds of beef cattle

A
  1. Boss Indicus
  2. Angus
  3. Droughtmaster
  4. Nelore or Nellore
  5. Hereford
  6. Charolais
    7.Limousin
  7. Simmental
  8. Shorthorn
  9. Brangus
    11.Santa Gertrudis
36
Q

Originally brought from India

A

Boss Indicus

37
Q

Naturally polled and solid black or red, though the udder maybe white.

A

Angus

38
Q

Is a tropical breed of beef cattle developed in North Queensland..

A

Droughtmaster

39
Q

-Cattle originated from Ongole Cattle
- has a large humo over the top of the shoulder and neck

A

Nelore or Nellore

40
Q

Bristh breed of beef cattle

A

Hereford

41
Q

Is a French breei of taurine beef cattle

A

Charolais

42
Q

Are a breed of highly muscled beef cattle originating from the Limousin and Marche regions of France.

A

Limousin cattle

43
Q

It is reddish in color with white markings..

A

Simmental cattle

44
Q

The breed was developed as dual purpose, suitable for both dairy and beef production.

A

Sorthorn

45
Q

Are black or red, polled with a sleek coat and pigmented skin

A

Brangus

46
Q

are tropical beef of cattle developed in southern Texas

A

Santa Gertrudis

47
Q

Dairy cattle breeds:

A
  1. Holstein Friesian
  2. Jersey
  3. Ayrshire
  4. Guernsey
  5. Brown swiss
  6. Milking Sorthorn
  7. American milking Devon
  8. Norwegian Red
  9. Red and white Holstein
48
Q

Originated in Holland.
The breed considered to be the best milk producer of the world

A

Holstein Friesian

49
Q

Is very hardy and adapts well to nearly all kinds of climatic condition

A

Jersey

50
Q

Is one of the best dairy cattle breeds of the world

A

Ayrshire

51
Q

Is another one of the popular dairy cattle breeds

A

Guernsey

52
Q

Is one of the oldest dairy cattle

A

Brown swiss

53
Q

Originated in Great Britain

A

Milking Sorthorn

54
Q

Is triple purpose

A

American Milking Devon

55
Q

Originated in Norway; the popular dual purpose

A

Norwegian Red

56
Q

Originated in US and Canada

A

Red and white Holstein

Removal exam reviewer in genetics (5 decks)

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