Effects of gestational maternal undernutrition on growth, carcass composition and meat quality of rabbit offspring.

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

Data from: Effects of gestational maternal undernutrition on growth, carcass composition and meat quality of rabbit offspring

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

Ingredients and chemical composition of the diets used.

<p>¹ The vitamin and mineral premix provided per kg of diet: 13,000 IU of vitamin A (retinyl acetate), 5,000 IU of cholecalciferol, 80 mg of vitamin E (DL-α-tocopheryl acetate), 4 mg of menadione, 4.2 mg of thiamine, 8 mg of riboflavin, 6 mg of pyridoxin, 20 μg of cobalamin, 75 mg of nicotinic acid, 18 mg of pantothenic acid, 2 mg of folic acid, 240 μg of biotin, 10 mg of vitamin C (ascorbic acid), 500 mg of choline chloride, 0.23 mg of Co, 1.2 mg of I, 0.35 mg of Se, 50 mg of Fe, 140 mg of Mn, 25 mg of Cu, and 115 mg of Zn.</p><p>² Calculated</p><p>Ingredients and chemical composition of the diets used.</p

Effect of dietary supplementation with naringin or hesperidin on broiler body, carcass and internal organ weights at the 42nd d of age (n = 10).

<p>¹ C: no additive, E1 and E2: 0.75 and 1.5 g hesperidin per kg feed, respectively, N1 and N2: 0.75 and 1.5 g naringin per kg feed, respectively, VE: 0.2g a-tocopheryl acetate (vitamin E) per kg feed.</p><p>* P<0.05 compared with C group.</p><p>^§ P<0.05 compared with VE group.</p><p>Effect of dietary supplementation with naringin or hesperidin on broiler body, carcass and internal organ weights at the 42nd d of age (n = 10).</p

Elemental Metabolomics: Modulation of Egg Metallome with Flavonoids, an Exploratory Study

The basic principles of elemental metabolomics were applied to investigate whether alteration of egg metallome could be achieved after two flavonoids addition, namely hesperidin and naringin in diets of laying hens. A total of 72 hens were divided into six groups: Control (C) (basal diet), E1 (750 mg hesperidin/kg diet), E2 (1500 mg hesperidin/kg diet), N1 (750 mg naringin/kg diet), N2 (1500 mg naringin/kg diet), and VE (200 mg vitamin E/kg diet). The same diet was provided to birds of all treatments, with the exception of added supplements. The diets had the same vitamin and mineral premix; thus, all birds received the same number of elements because no differences on feed intake existed. The egg elemental profile consisted of As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, V, Zn, and was determined using ICP-MS. Flavonoid supplementation altered the elemental profile. Most notably, in both albumen and yolk, hesperidin increased Ni, Pb, and Sr concentration while it decreased that of Co and Sb. Naringin increased Cd, Cr, Cu, Ni, and V and lowered the concentration of Co and Sb in both yolk and albumen. Vitamin E supplementation, in comparison to the control, decreased Co in both albumen and yolk and also raised Sb in albumen. Flavonoid presence led to the differences in deposition of certain trace minerals in egg compared to that of hens fed a basal diet or a diet with vitamin E supplementation

Effect of dietary supplementation with naringin or hesperidin on broiler <i>pectoralis major</i> instrumental quality traits (n = 10).

<p>¹ C: no additive, E1 and E2: 0.75 and 1.5 g hesperidin per kg feed, respectively, N1 and N2: 0.75 and 1.5 g naringin per kg feed, respectively, VE: 0.2g a-tocopheryl acetate (vitamin E) per kg feed.</p><p>L* = lightness.</p><p>a* = redness.</p><p>b* = yellowness.</p><p>* P<0.05 compared with C group.</p><p>^§ P<0.05 compared with VE group.</p><p>Effect of dietary supplementation with naringin or hesperidin on broiler <i>pectoralis major</i> instrumental quality traits (n = 10).</p

Effect of dietary supplementation with naringin or hesperidin on broilers’ meat (pectoralis major and biceps femoris) oxidative stability during storage (ng MDA/g meat) (n = 6).

<p>¹ C: no additive, E1 and E2: 0.75 and 1.5 g hesperidin per kg feed, respectively, N1 and N2: 0.75 and 1.5 g naringin per kg feed, respectively, VE: 0.2g a-tocopheryl acetate (vitamin E) per kg feed.</p><p>² stored for 3, 6 and 9 d at 4°C and for 120 d at -20°C.</p><p>* P<0.05 compared with C group.</p><p>^§ P<0.05 compared with VE group.</p><p>MDA, Malondialdehyde.</p><p>Effect of dietary supplementation with naringin or hesperidin on broilers’ meat (pectoralis major and biceps femoris) oxidative stability during storage (ng MDA/g meat) (n = 6).</p

Effect of gestational maternal undernutrition on live weight (g) of rabbit offsprings from 0 to 70 days of age.

<p>C = rabbits born from does fed to 100% of maintenance energy requirements; EU = rabbits born from does fed to 50% of maintenance energy requirements from day 7 to day19 of gestation; LU = rabbits born from does fed to 50% of maintenance energy requirements from day 20 to day27 of gestation (n = 16). (Individual s.e. lines are present but not visible due to scale range).</p

Effect of gestational maternal undernutrition on carcass quality parameters of rabbit offsprings (n = 16).

<p>¹ C = rabbits born from does fed to 100% of maintenance energy requirements;</p><p>EU = rabbits born from does fed to 50% of maintenance energy requirements from day 7 to day 19 of gestation;</p><p>LU = rabbits born from does fed to 50% of maintenance energy requirements from day 20 to day 27 of gestation.</p><p>Effect of gestational maternal undernutrition on carcass quality parameters of rabbit offsprings (n = 16).</p