College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China.
Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Jiangsu Province 225009, PR China.
Poult Sci. 2019 Dec 1;98(12):6849-6856. doi: 10.3382/ps/pez432.
This study investigated the effect of dietary VA supplementation on maternal and its offspring in terms of the early growth performance, antioxidant index, and tissue VA content of the goslings. Yangzhou geese aged 180 D were selected and randomly distributed into 5 experimental groups with 15 female geese and 3 male geese in each group. The geese were fed a basal diet supplemented with 0, 4,000, 8,000, 12,000, or 16,000 IU/kg VA. Eggs were collected from each group starting at 300 D. After hatching, 96 goslings were selected from each maternal group and randomly distributed into 2 experimental groups with factorial arrangement (6 replicates × 8 geese), including 2 levels of VA supplementations, 0 and 9,000 IU/kg. The results are as follows: (1) Different levels of maternal VA supplementation significantly affected the BW and weight gain of 7-day-old offspring (P < 0.05). The weight gain of offspring administered 9,000 IU/kg VA was significantly higher than that of offspring administered the basal diet (P < 0.05). (2) Maternal VA levels significantly affected the T3, T4, and insulin levels of the offspring (P < 0.05). (3) The GSH-PX, SOD, T-AOC, CAT, and tissue VA content of the offspring were significantly higher and MDA was significantly lower in the 9,000 IU/kg VA group than in the no VA group (P < 0.05). (4) Maternal VA levels had a significant effect on offspring GSH, GSH-PX, SOD, MDA, T-AOC, and CAT (P < 0.05). Maternal and offspring VA supplementation interact with the weight gain, tissue VA content, GSH, GSH-PX, SOD, MDA, and CAT of goslings (P < 0.05). Maternal supplementation with 12,000 IU/kg VA and offspring supplementation with 9,000 IU/kg VA was conducive to gosling growth.
本研究从早期生长性能、抗氧化指标和组织 VA 含量等方面探讨了饲粮 VA 补充对母鹅及其后代的影响。选用 180 日龄扬州鹅，随机分为 5 个试验组，每组 15 只母鹅和 3 只公鹅，分别饲喂基础饲粮和添加 0、4000、8000、12000、16000 IU/kg VA 的试验饲粮。从 300 日龄开始收集每组的蛋，孵化后从每个母鹅组选择 96 只雏鹅，采用两因子完全随机设计（6 个重复×8 只鹅）分为 2 个试验组，分别添加 0 和 9000 IU/kg VA。结果表明：（1）母鹅饲粮 VA 水平显著影响 7 日龄雏鹅 BW 和增重（P＜0.05），添加 9000 IU/kg VA 的雏鹅增重显著高于基础饲粮组（P＜0.05）。（2）母鹅 VA 水平显著影响雏鹅血清 T3、T4 和胰岛素水平（P＜0.05）。（3）雏鹅血清 GSH-PX、SOD、T-AOC、CAT 活性和组织 VA 含量均显著升高，MDA 含量显著降低，且添加 9000 IU/kg VA 的显著高于不添加 VA 的（P＜0.05）。（4）母鹅饲粮 VA 水平对雏鹅血清 GSH、GSH-PX、SOD、MDA、T-AOC 和 CAT 活性均有显著影响（P＜0.05），母鹅和雏鹅 VA 补充互作显著影响雏鹅体重、组织 VA 含量、GSH、GSH-PX、SOD、MDA 和 CAT 活性（P＜0.05），母鹅饲粮添加 12000 IU/kg VA、雏鹅饲粮添加 9000 IU/kg VA 有利于雏鹅生长。
