Influence of the number of suckling young and the feed level on foetal survival and growth in rabbit does

Fortun, Laurence; Lebas, François

doi:10.1051/animres:19940206

Cited by 13 publications

(7 citation statements)

References 15 publications

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“…The present results showing lower-weight adipose tissues in does that fed litters of ten compared to those that fed litters of four demonstrated that the extent of lipid mobilisation increases with the size of the suckled litter. This is in agreement with previous results obtained in primiparous does [6]. We can mention that the abrupt reduction of litter at the moment of the lactation peak did not involve pathological problems such as mastitis.…”

Section: Performances Of Femalessupporting

confidence: 93%

“…These results suggest that neither a sudden modification of litter size after fertilisation nor the greater mobilisation of body reserves that occurred when does nursed large litters had a negative influence on the first half of pregnancy. The effects of the suckled litter size, modified in such conditions, on reproductive performance at second kindling, remain to be studied since Fortun and Lebas [6] previously showed that foetal growth and survival are linearly affected with the size of the suckled litter.…”

Section: Performance and Health Status Of Young After Weaningmentioning

confidence: 99%

“…the number of suckling young, on reproductive performance was poorly studied. Additionally, Fortun and Lebas [6] showed that mobilisation of body reserves during lactation is correlated to the number of kits nursed. A large depletion of body stores could be detrimental to subsequent reproductive life.…”

Section: Introductionmentioning

confidence: 99%

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The effects of size of suckled litter on intake behaviour, performance and health status of young and reproducing rabbits

Fortun-Lamothe¹,

Gidenne²

2000

Ann. Zootech.

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-We compared feed intake, performance and health status of females and their young reared in litters of 4 (group L4; n = 18) or 10 kits (group L10; n = 20) between 16 and 32 days of age. Between days 16 and 25, the individual milk intake was lower (-15.7%; P = 0.08) and the solid feed intake per kit was higher (+117%; P < 0.01) for the L10 than for the L4 litters. Between days 26 and 32 (weaning), milk and solid feed intake were similar among groups. Live weight of the young was 10% lower in the L10 than in the L4 group at weaning (P < 0.05) but was similar in both groups at 70 days of age. Mortality rate around weaning (16-42 days) was higher in the L10 than in the L4 group (29% vs. 17%; P < 0.05). Thirty-five days after parturition (day of slaughter), females showed a body condition and reproductive performance (conception rate, ovulation rate and litter size) which were similar in both groups, except for the weight of adipose tissues which was 35.8% lower in the L10 females (P < 0.01). These results suggest that the growth and survival of young rabbits are weaker if the rabbits are reared in large-sized litters in spite of an earlier and higher solid food ingestion which only partially compensates for the low milk availability.

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Section: Performances Of Femalessupporting

confidence: 93%

Section: Performance and Health Status Of Young After Weaningmentioning

confidence: 99%

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The effects of size of suckled litter on intake behaviour, performance and health status of young and reproducing rabbits

Fortun-Lamothe¹,

Gidenne²

2000

Ann. Zootech.

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“…This result has been previously reported for rabbits [ 28 , 29 ] and more recently, it has been shown that ad libitum gestational feeding programmes of rabbit does have led to a higher toxaemia of females, increasing thus mortality of both females and new-born rabbit kits at peripartum [ 30 ]. Regarding the litter size at birth, it has been found that reduced gestational feeding levels do not affect the litter size at birth [ 16 , 17 , 31 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of Gestational Maternal Undernutrition on Growth, Carcass Composition and Meat Quality of Rabbit Offspring

et al. 2015

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An experiment was conducted in order to evaluate the effects of gestational undernutrition of rabbit does on growth, carcass composition and meat quality of the offsprings. Thirty primiparous non lactating rabbit does were artificially inseminated and randomly divided in three treatment groups: Control (C; fed to 100% of maintenance requirements throughout gestation, n = 10), early undernourished (EU; fed to 50% of maintenance requirements during days 7–19 of gestation, n = 10) and late undernourished (LU; fed to 50% of maintenance requirements during days 20-27 of gestation, n = 10). During the 4th week of the gestation period, LU does significantly lost weight compared to C and EU groups (P<0.05). At kindling, C does produced litters with higher proportions of stillborn kits (P<0.05) while the total litter size (alive and stillborn kits) was not different among groups (10.7, 12.8 and 12.7 kits in C, EU and LU groups, respectively). Kit birth weight tended to be lower in the LU group. During fattening, body weight and feed intake were not different among offsprings of the three experimental groups. Moreover, the maternal undernutrition did not have any impact on carcass composition of the offsprings in terms of carcass parts and internal organs weights as well as meat quality of L. lumborum muscle (pH24, colour, water holding capacity and shear values) at slaughter (70 days of age). Therefore, it can be concluded that the gestational undernutrition of the mother does not have detrimental effects on the productive and quality traits of the offsprings.

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“…Negative energy balance of females impaired foetal growth (Fortun and Lebas, 1994). Theau-Clément and Fortun-Lamothe (2005) did not find a direct connection between the nutritional status of does at AI and the number of segmented ova.…”

Section: Doe Body Weight and Relationship Between Doe Weight-change mentioning

confidence: 96%

Effect of controlled nursing with one-day fasting on rabbit doe performance

acute˜cs¹,

Bonanno

Gódor-Surmann³

et al. 2008

Livestock Science

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Influence of the number of suckling young and the feed level on foetal survival and growth in rabbit does

Cited by 13 publications

References 15 publications

The effects of size of suckled litter on intake behaviour, performance and health status of young and reproducing rabbits

The effects of size of suckled litter on intake behaviour, performance and health status of young and reproducing rabbits

Effects of Gestational Maternal Undernutrition on Growth, Carcass Composition and Meat Quality of Rabbit Offspring

Effect of controlled nursing with one-day fasting on rabbit doe performance

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