Feed restriction of pregnant nulliparous rabbit does: consequences on reproductive performance and maternal behaviour

Manal, A.F.; Tony, Mohamed Ahmed; Ezzo, O. H.

doi:10.1016/j.anireprosci.2010.03.010

Cited by 23 publications

(17 citation statements)

References 20 publications

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“…In addition, mortality rate until weaning was greater in the R group than in C group (P < 0.05). In contrast to results of the present study Manal et al (2010) reported a higher ratio of stillborn kits in ad libitum fed group of does in comparison with does that were feed restricted at 1.32 times maintenance requirements during the first 10, 15 or 20 days of pregnancy. However, they attributed this detrimental effect of feeding to appetite on reduced feed consumption of does of the control group during the last third of pregnancy, which negatively affected kit survival.…”

Section: Resultscontrasting

confidence: 99%

“…In rabbits, feed restriction in late pregnancy may alter mortality rate and birth-to-weaning weights (Nafeaa et al, 2011), although the timing of feed restriction is likely important for reproductive performance (Manal et al, 2010). Simultaneous gestation and lactation alters the development of muscle fibres in the 29-day-old rabbit offspring; however, this effect is transient and no differences in muscle features have been demonstrated at commercial slaughter age of 70 days (Gondret et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

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Influence of gestational maternal feed restriction on growth performance and meat quality of rabbit offsprings

Goliomytis

Skoupa

Konga

et al. 2016

Animal

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The purpose of the present study was to evaluate the effect of feed restriction during pregnancy on reproductive performance of rabbit does and growth performance and meat quality of their offspring. A total of 26 primiparous non lactating does were equally divided into two treatment groups: the control group (C, n = 13) that was fed ad libitum throughout gestation and the feed restricted group (R, n = 13) that was fed to 75% of maintenance energy requirements from the 7 th to the 26 th day of gestation. Rabbit offsprings were weaned at 35 days of age and grown until the 72 days of age when they were slaughtered for meat quality assessment. Meat quality traits measured were pH 24 , colour (L*, a*, b*), percentage of released water, cook loss, shear values and intramuscular fat. At kindling, R does produced smaller litter weights compared with those of does from group C, 447.8 and 591.4 g, respectively, and smaller individual kit birth weights, 56.2 and 71.5 g, respectively (P < 0.05). Ratio of stillborn kits and mortality rate from parturition until weaning was higher (P < 0.05) in the R group, 21.4% and 11.1%, respectively, in comparison with the C group, 8.1% and 3.5%, respectively. Litter size and gestation length were unaffected by maternal undernutrition. Kit birth weight treatment differences were eliminated at weaning because of compensatory growth (P > 0.05). Performance and meat quality characteristics of fattening rabbits at 72 days of age were not influenced by gestational feed restriction of their mothers (P > 0.05). Taking into consideration that, simultaneous gestation and lactation in rabbit does may be simulated by gestational feed restriction, results of the present study suggest that lactating does can support a simultaneous gestation without any adverse effect on the offsprings' quantitative and qualitative performance at the expense of increased mortality rates at parturition and until weaning.

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Section: Resultscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of gestational maternal feed restriction on growth performance and meat quality of rabbit offsprings

Goliomytis

Skoupa

Konga

et al. 2016

Animal

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“…Manal et al (2010) found that restriction of pregnant rabbit does for the first 15 or 20 d of pregnancy increased litter weight at weaning, while Nafeaa et al (2011) did not observe any influence on litter size at birth and maternal body weights. Our results showed no changes in the litter size of R1 group, but lower milk yield, BCS, and fat stores which, taken together, indicate a poor body condition also in does subjected to feed restriction for the first 10 d of pregnancy.…”

Section: Productive Performancementioning

confidence: 80%

“…intake, productive performance (Rommers et al, 2004b;Manal et al, 2010;Nafeaa et al, 2011), organogenesis (Cappon et al, 2005), placental development (Matsuoka et al, 2012) and some blood parameters (Matsuoka et al, 2009). However, evaluation of body condition is needful not only because it is correlated to short-and long-term reproductive efficiency, but also to animal health and welfare (Castellini et al, 2010;Sánchez et al, 2012;Pascual et al, 2013).…”

mentioning

confidence: 99%

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

et al. 2015

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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 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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“…Previous studies on rabbits have evaluated the effects of restricted feeding during pregnancy on productive performance (Manal et al, 2010;Rommers et al, 2004a), as well as on embryo-foetal and placental development (Cappon et al, 2005;Matsuoka et al, 2012), but little is known on hormones and metabolites involved in energy homeostasis.…”

Section: Introductionmentioning

confidence: 99%

Food restriction during pregnancy in rabbits: Effects on hormones and metabolites involved in energy homeostasis and metabolic programming

Menchetti

Brecchia

Canali

et al. 2015

Research in Veterinary Science

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Feed restriction of pregnant nulliparous rabbit does: consequences on reproductive performance and maternal behaviour

Cited by 23 publications

References 20 publications

Influence of gestational maternal feed restriction on growth performance and meat quality of rabbit offsprings

Influence of gestational maternal feed restriction on growth performance and meat quality of rabbit offsprings

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

Food restriction during pregnancy in rabbits: Effects on hormones and metabolites involved in energy homeostasis and metabolic programming

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