posted 11 years ago
I wonder if it has to do with how they were fed as goslings. I read that for cows the rumen in the calf develops differently if fed exclusively grass vs. grains, so that a calf fed some grain in the diet would never be able to produce much milk/grow well on just grass as an adult.
We had some African geese a few years ago that we bought as adults (I don't remember exactly how old, perhaps less than a year, but already quite big). They survived on pasture, though also getting to what chickens were fed who were often with them. Several of them died though-- one day they looked fine, the next day dead, and weighing next to nothing, somehow wasting away, but the big mean male thrived until slaughter. Where we bought them from there was no indication that they had had access to pasture, so in retrospect I wonder if some of them just couldn't adapt to a diet that wasn't mostly grains.
The main goose I see on the market here is Landes goose.
Anyway, this time, I'm going to be quite a bit more selective in what breed I purchase and from whom.