Feed restriction during pregnancy: effects on body condition and productive performance of primiparous rabbit does


  • Laura Menchetti Università di Perugia
  • Gabriele Brecchia Università di Perugia
  • Raffaella Cardinali Università di Perugia
  • Angela Polisca Università di Perugia
  • Cristiano Boiti Università di Perugia




pregnancy, feed restriction, reproductive performance, body condition, rabbit


This study examined the effects of feed restriction at different stages of rabbit pregnancy on body condition and productive performance. Just after insemination, pregnant primiparous New Zealand White does were assigned to 4 groups (10/group): the control group (C) was fed with 130  g/d of commercial feed while the others received 90 g/d from day 0 to 9 (R1), from day 9 to 18 (R2) or from day 19 to 28 (R3) of pregnancy and 130 g/d the remaining periods. A 3-point scale for loin and rump was used to calculate the aggregate body condition score (BCS), while perirenal fat weight (PFW) was estimated by ultrasound measurement of its thickness. The C does showed a positive balance of the pregnancy (0-26 d) for both body weight (P<0.001) and PFW (P<0.01). In particular, these increases occurred in the first 18 d of pregnancy (BW: P<0.001; PFW: P<0.05). The R1 does showed compensatory body growth after feed restriction (10-18 d: P<0.01), but lower BCS (P<0.05) at 26 d compared to control group. Feed restriction in mid and late pregnancy determined negative PFW balance (0-26  d: P<0.05), lower BCS at 26  d (R2: P<0.05) or lower BW gain compared to control (R3: P<0.05). The effects of feed restriction on productive performance depended on the restriction period: while R1 does did not show any differences compared to C, restriction during the last third of pregnancy increased perinatal (9.9 vs. 16.1%; P<0.05) and pre-weaning mortality (10.6 vs. 36.7%; P<0.01). However, milk production was lower in all restricted groups (C: 156, R1: 132, R2: 133; R3: 124  g/d; P<0.001, respectively). Thus, the energy deficit due to concurrent undernutrition and metabolic demands during pregnancy has short- and long-term consequences on both mother and offspring.


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Author Biographies

Laura Menchetti, Università di Perugia

Dipartimento di Medicina Veterinaria

Gabriele Brecchia, Università di Perugia

Dipartimento di Medicina Veterinaria

Raffaella Cardinali, Università di Perugia

Dipartimento di Scienze Agrarie, Ambientali e Alimentari

Angela Polisca, Università di Perugia

Dipartimento di Medicina Veterinaria

Cristiano Boiti, Università di Perugia

Dipartimento di Medicina Veterinaria


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