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Therio Key-Points Table Flashcards

1
Q

cow age of puberty (months)

A

8-12 (breed differences)

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2
Q

mare age of puberty (months)

A

15-24 (seasonal effects)

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3
Q

ewe age of puberty (months)

A

5-7

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4
Q

sow age of puberty (months)

A

5-8

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5
Q

bitch age of puberty (months)

A

6-24

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6
Q

queen age of puberty (months)

A

5-12

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7
Q

mare type of placenta

A

diffuse/microcotyledonary

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8
Q

sow type of placenta

A

diffuse

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9
Q

carnivore placental attachment style vs herbivore

A

herbivores: epithelio-chorial
carnivores: endothelial-chorial

ie. of domestic species only cat and dog have endothelio-chorial

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10
Q

cow breeding season?

A

all year

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11
Q

mare breeding season?

A

april-sept (long day), earlier with lighting

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12
Q

ewe breeding season?

A

short-day breeders (fall)

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13
Q

sow breeding season?

A

all year, slight seasonal influence

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14
Q

bitch breeding season?

A

all year

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15
Q

queen breeding season?

A

jan-oct

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16
Q

cow type of estrus cycle?

A

polyestrus

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17
Q

mare type of estrus cycle?

A

seasonally polyestrus

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18
Q

ewe type of estrus cycle?

A

seasonally polyestrus

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19
Q

sow type of estrus cycle?

A

polyestrus

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20
Q

bitch type of estrus cycle?

A

monoestrus

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21
Q

queen type of estrus cycle?

A

polyestrus

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22
Q

cow length of estrus cycle?

A

21d

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23
Q

mare length of estrus cycle?

A

21d

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24
Q

ewe length of estrus cycle?

A

17d (range 14-19)

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25
sow length of estrus cycle?
21d
26
bitch length of estrus cycle?
16-56 weeks
27
queen length of estrus cycle?
1-3 weeks (if not mated)
28
cow duration of estrus
12-18 hours
29
mare duration of estrus
4-7 days
30
ewe duration of estrus
36 hours
31
sow duration of estrus
48-72 hours
32
bitch duration of estrus
5-10 d
33
queen duration of estrus
3-6 d
34
which domestic species is an induced ovulator (rather than spontaneous)?
queen
35
cow time of ovulation
4-16h after estrus
36
mare time of ovulation
24-48h before end of estrus
37
ewe time of ovulation
24h after onset of estrus
38
sow time of ovulation
24-42h after onset of estrus
39
bitch time of ovulation
6d before diestrus
40
queen time of ovulation
25-50h after coitus
41
cow ovulation rate (# of ova)
1
42
mare ovulation rate (# of ova)
1-3
43
ewe ovulation rate (# of ova)
1-5
44
sow ovulation rate (# of ova)
10-20
45
bitch ovulation rate (# of ova)
3-20
46
queen ovulation rate (# of ova)
1-12
47
cow transit time of ovum in oviduct (days)
5
48
mare transit time of ovum in oviduct
5-6
49
ewe transit time of ovum in oviduct
4
50
sow transit time of ovum in oviduct
2
51
bitch transit time of ovum in oviduct
8
52
queen transit time of ovum in oviduct
4-8
53
cow attachment (days)
20
54
mare attachment (days)
25-56
55
ewe attachment (days)
16
56
sow attachment (days)
16
57
bitch attachment (days)
16-18
58
queen attachment (days)
11-14
59
which domestic animals experience pseudopregnancy? how often?
mare: occasionally sow: rare bitch: always (60-90d) queen: frequent (6wks avg)
60
cow gestation length
278-293
61
mare gestation length
330-345 (341 avg)
62
ewe gestation length
144-151
63
sow gestation length
112-115
64
bitch gestation length
63d from ovulation
65
queen gestation length
58-68
66
sow birth numbers
6-12
67
bitch litter size
1-20
68
queen litter size
1-8
69
doe length of estrus cycle
21d
70
doe duration of estrus
30-40h
71
doe time of ovulation
12-36 h after onset of estrus
72
doe time for attachment
10-11d
73
doe pseudopregnancy
frequent
74
doe gestatiomn length
147-155

Therio (13 decks)

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