Pregnant goats need a diet that shifts significantly as their pregnancy progresses, starting with simple maintenance nutrition and ending with a much higher-calorie, higher-protein ration in the final weeks before kidding. Getting this right prevents serious metabolic diseases and gives kids the best chance at a healthy birth weight. Here’s how to feed your does through each stage of pregnancy.
Early and Mid Gestation: Weeks 1 Through 15
For roughly the first three and a half months of a five-month pregnancy, fetal growth is minimal. Your doe’s nutritional needs during this period are essentially the same as her maintenance requirements: about 7% crude protein and 53% total digestible nutrients (TDN) in the diet. Good-quality grass hay or pasture is typically enough to meet these needs without any grain supplementation.
The main goal during early and mid gestation is keeping your doe at a healthy body condition, not too thin and not too fat. On the standard 1 to 5 scale, you want her at roughly a 3 to 3.5. Does that enter late pregnancy overweight (above a 4) have a 43% higher incidence of metabolic diseases like ketosis and milk fever, and they’re more likely to have difficult deliveries. Does that are too thin heading into the final stretch don’t have enough energy reserves to support rapid fetal growth. If a doe is underweight at breeding, use this early window to gradually bring her condition up with better forage or a small amount of grain.
Late Gestation: The Final 6 Weeks
This is where feeding gets serious. In the last four to six weeks of pregnancy, the kids are growing rapidly and your doe’s energy demands jump dramatically. A doe carrying twins needs about 36% more energy than she did in early pregnancy. Does carrying triplets need roughly 42% more. Even a single kid increases energy requirements by around 23%.
During this period, the total diet should contain 10 to 13% crude protein and 53 to 67% TDN. A 154-pound doe carrying twins needs about 4 pounds of dry matter daily, with nearly half a pound of that being crude protein. Forage alone usually can’t meet these demands, especially since the growing kids are physically compressing the rumen and reducing how much hay the doe can eat at once. This is when grain becomes necessary.
Adding Grain in Late Pregnancy
Grain provides the concentrated carbohydrates that forage can’t deliver in a small enough volume. If you’re feeding grass hay, your concentrate mix should contain 14 to 15% crude protein and at least 70% TDN. If you’re feeding alfalfa-based forage, the concentrate can be slightly lower in protein (10 to 12%) since the hay itself is protein-rich. Start grain slowly, increasing the amount over a couple of weeks so the rumen microbes can adjust. Abrupt diet changes can cause digestive upset, which is the last thing a heavily pregnant doe needs.
The exact amount of grain depends on your doe’s size, body condition, how many kids she’s carrying, and the quality of your hay. A doe in good condition on decent forage carrying a single kid needs less supplementation than a thin doe on mediocre hay carrying triplets. If you can get your hay tested for energy and protein content, that removes a lot of guesswork.
The Hay Switch Before Kidding
If you’ve been feeding alfalfa hay, switch to grass hay about two months before the due date. This is one of the most important and counterintuitive feeding changes in goat management. Alfalfa is high in calcium, and while that sounds like a good thing, it actually sets your doe up for milk fever.
Here’s why: when a doe eats high-calcium feed throughout late pregnancy, her body gets lazy about mobilizing calcium from her own bones. Then, when she suddenly needs a massive amount of calcium to produce colostrum and milk after kidding, her system can’t ramp up fast enough. The result is a dangerous drop in blood calcium called milk fever, which can cause weakness, tremors, and even death.
Feeding grass hay, which is naturally lower in calcium, forces the doe’s calcium-regulation system to stay active. When milk production kicks in, her body is already efficient at pulling calcium from its reserves. After kidding, you can switch back to alfalfa to support the high demands of lactation.
Minerals and Trace Elements
Pregnant does need a calcium-to-phosphorus ratio in their diet between 1.5:1 and 2:1. This balance is important for fetal bone development and for preventing urinary stones, which goats are naturally prone to. A good goat-specific mineral mix is formulated with this ratio in mind.
Selenium and vitamin E deserve special attention. In selenium-deficient areas (which covers a large portion of the United States), does that don’t get enough selenium during pregnancy are at much higher risk of abortion, retained placentas, and weak kids born with white muscle disease. One study found that does supplemented with selenium and vitamin E had a 100% kid survival rate, compared to just 60% in the unsupplemented group. The supplemented group also had zero abortions, while 40% of unsupplemented does aborted. Check whether your region is selenium-deficient and talk to your vet about whether your mineral program covers it or whether an additional supplement is needed.
Loose Minerals vs. Blocks
Loose minerals are generally the better choice for pregnant does. Goats have small tongues and can’t efficiently lick enough mineral from a hard block to meet their needs, especially when demands are elevated. Loose minerals in a covered feeder allow does to consume what they need quickly. If you have a dominant doe guarding the mineral feeder, set up multiple stations so lower-ranking animals can still access them. Pregnant does that are timid or low in the herd hierarchy are often the ones most at risk of mineral deficiency simply because they get pushed away.
Preventing Pregnancy Toxemia
Pregnancy toxemia, sometimes called twin kid disease or ketosis, is the most common and dangerous metabolic problem in late-gestation does. It happens when a doe can’t consume enough calories to keep up with the energy demands of her growing kids. Her body starts breaking down fat for fuel, producing toxic byproducts called ketones that build up in the blood. Does carrying multiples are at highest risk.
Prevention comes down to three things: making sure does aren’t too thin or too fat going into the last six weeks (a body condition score below 2.5 out of 5 is a red flag), providing adequate grain as a carbohydrate source, and ensuring enough feeder space so every doe actually gets to eat. Crowded feeding conditions where dominant does push others away are a classic setup for toxemia in the timid animals. Sorting does by body condition, size, and the number of kids they’re carrying lets you tailor feeding to each group’s needs rather than hoping a one-size-fits-all ration works.
The Two-Week Transition Before Kidding
About two weeks before the expected due date, begin gradually shifting your doe toward the diet she’ll eat during lactation. This means slightly increasing the protein and energy content of her ration. The transition serves two purposes: it prevents the metabolic shock of a sudden diet change right at kidding, and it ensures the rumen is already adapted to the higher-nutrient feeds she’ll need to produce milk. Keep calcium low during this transition (grass hay, not alfalfa) to maintain the milk fever protection described earlier, but bump up the grain and protein content so she enters lactation with her digestive system ready.
Water and Feeding Basics
Clean, fresh water is easy to overlook but critical. A pregnant doe’s water needs increase substantially in late gestation, and dehydration directly reduces feed intake, which spirals into the energy deficit that causes toxemia. In cold weather, warming water to at least lukewarm encourages drinking. Make sure water sources aren’t frozen over or placed where dominant animals block access.
Feed hay at consistent times and keep it off the ground to reduce parasite exposure, which is especially important for pregnant does whose immune systems are naturally suppressed in the weeks around kidding. A hay feeder that minimizes waste while allowing easy access for does with large bellies is worth the investment.