Goat gestation calculator

About 150 days, or five months. Normal runs roughly 145 to 155 days.

There is a number circulating for Nigerian Dwarf — usually 145 days — and it does not trace back to any study. Nor do the numbers published for Nubian, Saanen, LaMancha or Pygmy. They come from other calculator sites quoting each other.

Breeds that have been measured: Boer at 148, Granadina at 149, Alpine at 151, Toggenburg at 152. For everything else, 150 days is the honest answer, and the Miniature Dairy Goat Association's own calculator uses the same 145 to 155 range for every goat.

No, and this is the most commonly repeated wrong fact about goats. A study of 1,468 pregnancies found the number of kids was not a significant source of variation in gestation length, and a separate study of Boer does found the same.

What is significant is the combined weight of the litter, which you have no way of knowing until they are on the ground. Plan on 150 days whether she is scanned for one or for four.

Earlier, slightly, which is the opposite of what a lot of extension pages say. Across those same 1,468 pregnancies it ran 151.3 days at her first kidding, 150.6 through her middle years, and 149.9 by her seventh. It is about a day and a half in total, so it changes nothing you would actually do.

The udder fills over the last couple of weeks and tightens hard in the last day or two. The ligaments either side of her tailhead soften and go, which you can feel with your fingers — when they disappear entirely she is usually inside twelve hours.

She will also go off on her own and start pawing at bedding. That is your cue to stop checking hourly and stay put.

Ultrasound picks it up from about 25 to 30 days and can count kids reasonably well from around 45 to 60 days, which is genuinely useful for sorting feed groups. Blood tests work from about 30 days.