Symeon George K, Goliomytis Michael, Bizelis Iosif, Papadomichelakis George, Pagonopoulou Olga, Abas Zafeiris, Deligeorgis Stelios G, Chadio Stella E
Department of Physiology, Medical School, Democritus University of Thrace, Alexandroupoli, Greece.
Department of Animal Breeding & Husbandry, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece.
PLoS One. 2015 Feb 11;10(2):e0118259. doi: 10.1371/journal.pone.0118259. eCollection 2015.
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.
为了评估妊娠母兔营养不足对后代生长、胴体组成和肉质的影响,进行了一项实验。30只初产未哺乳的母兔经人工授精后随机分为三个处理组:对照组(C组;整个妊娠期按维持需要量的100%饲喂,n = 10)、早期营养不足组(EU组;在妊娠第7 - 19天按维持需要量的50%饲喂,n = 10)和晚期营养不足组(LU组;在妊娠第20 - 27天按维持需要量的50%饲喂,n = 10)。在妊娠期第4周,与C组和EU组相比,LU组母兔体重显著下降(P<0.05)。产仔时,C组母兔所产窝仔中死胎比例较高(P<0.05),而各组总产仔数(活仔和死胎)无差异(C组、EU组和LU组分别为10.7只、12.8只和12.7只)。LU组仔兔出生体重有降低趋势。育肥期间,三个实验组后代的体重和采食量无差异。此外,母体营养不足对后代的胴体组成(胴体各部分和内脏器官重量)以及屠宰时(70日龄)腰大肌的肉质(pH24、颜色、持水力和剪切值)没有任何影响。因此,可以得出结论,母兔妊娠期营养不足对后代的生产性能和品质性状没有不利影响。