A double layer of chicken wire may or may not keep the kits in ... if any of the holes are 1" square or larger, they can get out ... chill, get sick & die ... get stepped on ... or killed by a family pet.
A scale that
weighs in 1 or 2 graham increments is best. If it weighs in 5 gram increments or in ounces, it will
not do for kits. They are so tiny, by the time they loose 5 grahams or 1 ounce, they are already to far gone.
Weigh them daily the first couple of weeks. Twice a day, about the same time of the day each time.
The weight may vary if the kit has just nursed or just urinated.
BE AWARE:
1. If a kit looses a gram or two from one weigh-in to the next, then evens out or gains it back the next weigh-in, it's OK. If it drops weight two days in a row, it's in trouble and needs supplementing. I use goat's milk ... liquid, not powder. DO NOT heat in microwave, use a glass eye dropper, unused portions may be frozen, then scraped out and warmed to room temperature as needed.
2. If a mom seems to be rejecting a little one ... trouble is lurking. Get in touch with someone who know what they are doing. Chinchilla Moms tend to know if a kit will make it or not and, as mother nature will have it, she may reject that kit, knowing that if she keeps feeding it, it may also put the other kit in danger, due to lack of milk.
3. I keep a calendar by the chin cage to keep track of the daily readings ... this helps when you need help ... the record will help the other person know what has been going on and for how long.
4. Should you have to supplement, supplement the larger kit ... keep it's tummy full. The smaller, weaker kit is the one that needs mom's chinchilla milk the most. Remove the larger kit several times a day to allow the smaller one to have one-on-one time with mom, if needed.
Hope this helps!
Jo Ann