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Reproductive Cycle of Domestic Animals |
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Species |
Age of |
Nature of heat |
Duration of |
Time of |
Period of |
Gastation
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Sperm survival |
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Puberty |
cycle recurrence |
oestrous |
ovulation |
maximum |
period |
in uterus |
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fertility |
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1. COW |
2-21/2 yrs |
Polyestrous |
8-24 hrs |
14 hrs after |
Last 8 hrs of |
282 days |
20 hours |
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Recurrence |
Average |
the end of |
oestrous. |
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(21 days) |
19 hrs |
oestrous. |
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2.MARE |
2 yrs |
Seasonally |
3-40 days |
24 hrs |
Penultimate |
336 days |
2-3 days |
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polyoestrous |
Average |
before the |
day of oestrous. |
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(21 days) |
7 days |
end of |
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oestrous. |
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3.EWE |
6-12 months |
Seasonal |
36 hrs |
Later part of |
2nd half of |
150 days |
22-42 hours |
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oestrous. |
oestrous. |
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4. SOW |
5 months |
Polyestrous |
2-3 days |
36 hrs after |
12-36 hrs |
120 days |
24 hours |
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onset of |
after the onset |
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oestrous & |
of oestrous. |
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continues upto |
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next 12 hrs |
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5. BITCH |
9-12 months |
Monoestrous |
8 days |
1-3 days |
Next 3 days |
62 days |
4 days |
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(Proper |
after onset |
after the |
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oestrous) |
of oestrous |
onset of |
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proper. |
oestrous. |
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6.BUFFALO 2.6 yrs |
Polyestrous |
8 hrs-3 days |
10-20 hrs |
Last 8 hours |
307 days |
Less than |
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Bull 2 yrs |
Recurrence |
Average. |
upto the end |
of oestrous |
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24 hours |
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(21 days) |
32 hrs |
of estrous |
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7. GOAT |
4-8 months |
Polyestrous |
1-2 days |
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150 days |
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Recurance |
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(18-27 days) |
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8.CAMEL |
3-4 yrs |
Polyestrous |
1-7 days |
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406 days |
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Recurrence |
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(10-20 days) |
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Dog and Cats | Poultry | Horses | Cattle