Thanks!Definitely sounds pregnant to me. Pulling more fur and trying again to make a nest. Put a nest box in her cage.
Do you have a nest box? Preferable made of wood or metal due to her chewing up a cardboard box. For that size doe and litter the box should be minimum 18 cm by 24 cm approximately with sides about 8-10 cm tall. No top necessary. If you don't have one, try to construct one and put the bedding materials in it. Even some sort of metal or crockery baking pan with a 5-8 cm rim will work as long as it is heavy enough so it can't tip over. Too large is better than too small. With a short lip you will have to watch to return any kits that fall out back into the nest. If the doe is disturbed at night she can sometimes jump out of the box with a kit still nursing and it will fall on the cage floor. Just put it back if it is still alive.
The reason for a nest box is to mimic what the doe builds in the wild. In the wild the rabbit will dig a hole or depression in the ground and fill it with her fur. When the kits are born they have no fur and are blind. If they are in a nest, they can't crawl away, they keep each other warm, and the mother jumps into the nest to feed them. She doesn't lay down to nurse them but crouches over them. She only feeds them at night. During the day she will not stay in the nest but will sit in the cage and go about her activities. If startled she may jump into the nest. She will not gather up any kit that falls out of the nest and put it back like cats and dogs. In the wild this sort of behavior is a safety factor for the kits. If a predator comes near the nest the mother will run hoping to lead predators away from the nest of babies. In the wild, does breed as soon as they kindle (give birth). They will have another litter 30 days after the current litter. Do not put your buck with your doe anymore unless you want another litter. Rabbits don't play together like cats or dogs do. They are normally solitary animals, only coming together to breed.
Not sure how much 900 grams is in ounces, but f he has large balls he was probably a sexually mature buck. When sexing baby bunnies at 8 weeks they don't usually have testicles yet. We use the donut or tube and paper clip method.
Enjoy your baby bunnies!
Actually, that's the maximum showable weight; pedigreed Hollands can weigh a lot more than that, if they don't happen to have inherited the dwarfing gene. We who breed dwarf breeds refer to rabbits that inherited the dwarfing gene as "true dwarfs," those who missed it as "false dwarfs." During my earliest years with Holland Lops, I often had false dwarfs that matured at nearly 6 pounds (we all had to really work on getting the size down without losing type in those days). Looking at the length of the buck's ears relative to the size of his head, he looks like a false dwarf (possibly a good thing from certain points of view, since a false dwarf cannot throw peanuts, a peanut being a bunny that inherited the dwarfing gene from both parents).Since the maximum weight for Holland Lops is 4 lbs. or 1800 grams,