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Information on properly meeting your rat's nutritional needs
Nutrition for Baby Rats
The first and most important source of nutrition for rat babies is, naturally,
their mother's milk. Baby rats should not be weaned before 4 weeks of age. I
leave male babies in with their mother until they are 5 weeks of age if their
new homes are not ready, and girls until 6 weeks. I have been told that if one
must substitute something for the milk of a mother rat, soy baby formula is
best, but I am no expert on hand-rearing litters so I'll leave those instructions
to those who know more about the subject.
Starting about the time a litter of rat babies opens its eyes, I will start
deliberately putting food for them in the nest--things like kitten kibble (I
prefer Science Diet, Iams, Eukanuba, etc.), whole-wheat bread, soft fruits such
as overripe bananas, and so on. Soon enough the babies begin to leave the nest
and explore, soon getting into Mom rat's food. More surprises await there, with
one of the favorites being kitten kibbles in goat's milk (which is easy to find
here in the midwestern US). Make sure the milk isn't too high in the bowl to
prevent the babies from possibly drowning--below the level of the kibbles is
best. It'll soak right in and makes a good supplement.
As the babies grow, I gradually introduce lab block along with a wide variety
of other foods. I try to keep the protien level somewhat boosted, and I really
don't totally take away the kitten or puppy food until the ratties are 3 months
old or so because I feel they grow better on it. I discontinue it for older
rats because there's too much fat and protien for the nutritional requirements
of older rats.
If you just got a baby rat (or better yet a pair), I think the feeding regimen
below is best.
You will need lab block (I like Harlan Teklad best, but as far as I know they
are all basically adequate). Lab block is a special food made to exactly meet
the nutritional requirements of rats.
I would feed 2 or so lab blocks per baby per day if the babies are 4-8 weeks
old, 3 if they are older but not adult. Adjust this daily to meet the demand.
Also add a little bit of good-quality dry kitten or puppy food--maybe a teaspoon
to a tablespoon per baby. In addition, add variety by giving little bits of
fruits and veggies every day. Don't go too heavy on the people food or greasy,
salty, or sugary treats, no matter how much the little boogers beg.
Nutrition for Adult Rats
In general, adult rats need lower levels of protien and fat than do baby rats.
This is because they are finished growing. Of course this is not true for the
pregnant or nursing doe (female). Further adjustments have to be made for the
elderly rat. I will give details of how I handle nutritional needs of each population
below.
Adult males:
75-80% lab block (I prefer Harlan Teklad)
15-20% fresh fruits and veggies
5% or less treats (yoghurt drops, seeds, nuts)
Grain mix for rodents can be substituted for some of the lab block allotment.
Rats like most fresh or frozen fruits or veggies. Here are some of my rats'
favorites:
cantaloupe
bananas
grapes
peas
carrots
melon of any kind
avacodo (WATCH OUT! HIGH IN FAT)
small chunks of citrus fruits
green beans
Fruits and veggies they are less enthused about:
apples (not the best nutritionally)
lettuce (same as above)
celery (mine dislike it strongly)
This is by no means a complete list.
Adult Females:
70-75% lab block/grain mix
15-20% fresh fruit/veggie (or frozen)
5-10% protein food (kitten or puppy kibble, or high-protien table scraps)
up to 5% treats
Female rats seem less prone to obesity and protein-related skin and coat problems.
I feel they need a bit more protein in their diets, but most of my females have
an occasional litter and so I like to make extra sure their protein needs are
met. Also I give my girls wheels to run on, which they are much more likely
to use than the boys ever would be, and the runners seem to need the extra richness
in their diet to keep their weight at a healthy level.
Pregnant or Nursing Females:
The big needs of pregnant and nursing females are adequate levels of protein
and fat. These can be supplied using kitten or puppy chow, a good brand (such
as Science Diet, Iams, Eukanuba, or any of a number of other good brands). Also
table scraps can be useful, being palatable, as long as you avoid heavily spiced
or salted or sugared items which are hard on the rat's system.
If a doe (female) appears to be expecting a good-sized to huge litter (based
on the size of her abdomen), I will take away the lab blocks entirely in favor
of the richer foods so that she has the best possible chance of providing adequate
nutrition for the growing rat kittens inside of her. I will continue with this
(with fruits and veggies, too, and sometimes a little grain mix or whole wheat
bread) after the babies are born, but then I will add goat's milk for the extra
protein, calcium, fat, and palatability. This is good for putting weight on
a thin mother or helping boost up the runts. Sometimes a large litter will nurse
the flesh off of a mother--she just doesn't eat enough to make up for what they
are taking from her body by nursing. This is, in my opinion, VERY BAD for the
female and should not be allowed. If necessary take the babies away for several
hours a day and let her rest and eat--feed her lots of tasty food, rich food,
eggs scrambled in butter, oatmeal with whole milk or goat's milk, canned kitten
or puppy food, whatever she'll eat that's nutritionally rich. Meanwhile offer
the babies the same foods separately. Hopefully this will let her catch up and
quit losing condition.
Elderly Rats
As rats get older, they also need special nutritional support. You don't want
to go overboard on the protein or fat for this group as they are hard to digest.
Instead, things like soaking the lab blocks or breaking them up, adding a little
more soft food such as oatmeal, and watching the teeth and condition carefully
will go a long way towards helping your ratties enjoy their golden months. If
an aging rattie loses too much weight too fast, it's time to add more tasty
scraps and so on to the diet. Still try to keep a balance and keep the overal
protein and fat levels reasonable.
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