Should you ration a pregnant doe's food? What a Spanish study tested
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
Caught between the fear of letting a breeding doe put on too much weight and the fear of under-feeding her, many owners aren't sure whether to adjust a pregnant doe's ration at all. A recent Spanish study offers concrete data on moderate feed restriction during pregnancy. Our feeding guidance is gathered in the rabbit food section.
Contents · 5 sections
Three restriction windows compared with free access
Carlota Fernández-Pacheco, Pilar Millán, María Rodríguez, Nora Formoso-Rafferty, Ana Sánchez-Rodríguez, Pedro Lorenzo, María Arias-Álvarez, Rosa García-García and Pilar Rebollar published a study in 2021, in the journal Animals, on primiparous does split into four groups: a ration restricted to 105 grams a day from day 0 to 7 after insemination, from day 7 to 21, from day 0 to 21, or free access throughout pregnancy for the control group. The researchers tracked energy homeostasis, reproductive performance and welfare indicators according to the restriction window and duration applied.
A slightly altered metabolism, but welfare preserved
Moderate restriction did leave a measurable mark on energy homeostasis and certain metabolic markers, particularly when it covered the whole day-0-to-21 window. The authors nonetheless conclude that, whichever window was tested, the does' overall metabolic condition, productive performance and welfare were not compromised by these moderate restriction regimes. In other words, tighter ration management in the early-to-mid stage of pregnancy didn't harm the mothers' overall health in this study.
What this means for a companion doe
This study was carried out on primiparous does in a commercial rabbit-farming setting, with a ration precisely measured in grams, not on companion does fed hay ad libitum. It doesn't therefore justify bluntly rationing a pregnant companion doe: free-choice hay remains the recommended baseline, adjusted as covered in our guide on calculating food portions by age and weight. It does, however, reassure owners worried about a slight adjustment to pellet quantity early in pregnancy to prevent excess weight gain: this work suggests a moderate, well-monitored restriction doesn't put the mother's welfare at risk. Preparing the nest, meanwhile, is its own separate task, covered in our article on the nesting box for a pregnant doe.
The study's limits
The trial involved primiparous does from a farmed strain, with a production goal and a precisely calculated gram ration, a setting quite different from a companion doe fed mainly on hay. The authors themselves are measured in their conclusions, describing a "discreet" metabolic effect rather than a total absence of impact, and this mother-focused work does not report data on kit birth weight or health.
Frequently asked questions
Should you cut back a pregnant companion doe's food?
Not by default: free-choice hay remains the reference for a companion doe. This study only covers precisely measured farm rations, not a restriction left to an owner's judgement.
Is a pregnant doe gaining a lot of weight in danger?
Excess weight is worth a vet's opinion, but this study provides no threshold that applies to a companion doe; it only documents the absence of harm from moderate restriction on a farm. Find all our guides on the rabbit hub.
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This guide is part of Planète Pets’s Rabbits universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.
