# Goat Reproduction: Breeding Season, Signs of Heat, Ovulation & Gestation

> Reproductive physiology of the doe: puberty 5–7 months, seasonally polyestrous, 21-day cycle (MSD; 18–22 days per N.C. Extension), estrus 24–48 h, ovulation 12–36 h after standing heat begins, gestation 150 days — cited.

- Source page: https://wevet.in/reproduction/goat/
- Type: Reproduction
- Publisher: WeVet
- Updated: 2026-11-01
- Audience: veterinarians and veterinary students

Key reproductive figures for goats from the MSD Veterinary Manual [1][2] and from N.C. Cooperative Extension [3].

## Key figures

| Feature | Goat | Source |
|---|---|---|
| Age at puberty | 5–7 months | [1] |
| Cycle | Seasonally polyestrous, early autumn to late winter; 21 days | [1] |
| Duration of estrus | 24–48 h | [1] |
| Best time to breed | Daily during estrus | [1] |
| First estrus after kidding | Next autumn | [1] |
| Gestation | 150 days | [2] |

The MSD table also notes that many intersexes are born in hornless strains [1].

## Signs of heat and breeding

- Does in heat become vocal, and some bleat very loudly [3].
- Ovulation usually occurs 12 to 36 hours from the onset of standing heat [3].
- Does should not be bred until they reach 60 to 75% of their expected mature weight [3].
- In the region the extension source describes, the breeding season generally extends from September to February [3].

## How the sources compare

| Feature | MSD Veterinary Manual [1] | N.C. Cooperative Extension [3] |
|---|---|---|
| Age at puberty | 5–7 months | 7 to 10 months |
| Estrous cycle | 21 days | Approximately every 18 to 22 days during the breeding season |
| Duration of estrus | 24–48 h | 12 to as long as 48 h |

## Frequently asked questions

### How long is the heat cycle of a goat?

21 days in the MSD Veterinary Manual [1]; N.C. Cooperative Extension says goats come into heat approximately every 18 to 22 days during the breeding season [3].

### How long is a goat in heat?

24–48 hours in the MSD Veterinary Manual [1]; 12 to as long as 48 hours in N.C. Cooperative Extension [3].

### How long is a goat pregnant?

About 150 days [2].

## References

[1] Features of the Reproductive Cycle (table) — MSD Veterinary Manual. https://www.msdvetmanual.com/multimedia/table/features-of-the-reproductive-cycle
[2] Approximate Gestation Periods (table) — MSD Veterinary Manual. https://www.msdvetmanual.com/multimedia/table/approximate-gestation-periods
[3] Heat Detection and Breeding in Goats — N.C. Cooperative Extension (2015). https://content.ces.ncsu.edu/heat-detection-and-breeding-in-meat-goats

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Numbers in [brackets] cite the references above. For veterinary professionals. Information supports — never replaces — clinical judgement; always check the current product label and local regulations.
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