Ren Z Z, Jiang S Z, Zeng Q F, Ding X M, Bai S P, Wang J P, Luo Y H, Su Z W, Xuan Y, Zhang K Y
Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China.
J Anim Physiol Anim Nutr (Berl). 2017 Apr;101(2):359-368. doi: 10.1111/jpn.12453. Epub 2016 Apr 14.
This study investigated the effects of maternal canthaxanthin (CX, 6 mg/kg) and 25-hydroxycholecalciferol (25-OH-D , 0.069 mg/kg) supplementation on the performance of Cherry Valley ducklings under two different vitamin regimens. A total of 780 duck breeder females and 156 males were randomly allotted to two diets with or without the addition of the mixture of CX and 25-OH-D (CX+25-OH-D ) for 32 weeks. Ducklings (males and females separately) hatched from eggs laid at 24 weeks of the duck breeder trial were fed with a NRC vitamin regimen, and ducklings (males and females separately) hatched from eggs laid at 32 weeks of the duck breeder trial were fed with a HIGH vitamin regimen (had higher levels of all vitamins except biotin than NRC vitamin regimen), for 14 days. The results showed that, maternal CX+25-OH-D supplementation increased the shank pigmentation for 7-days post hatch in ducklings under a NRC vitamin regimen, and for 14-days post hatch in ducklings under a HIGH vitamin regimen. Growth performance, antioxidant status and serum phosphorus of ducklings under a NRC vitamin regimen were increased by maternal CX+25-OH-D supplementation; however, these positive effects were not observed in ducklings under a HIGH vitamin regimen. Males revealed increased growth performance in ducklings under both NRC and HIGH vitamin regimens. Sexual differences in shank pigmentation, antioxidant status, tibia strength and serum phosphorus were not consistent as they were dependent on maternal CX+25-OH-D status or dietary vitamin regimens. Data suggest that maternal CX+25-OH-D supplementation is important for starter ducklings under a NRC vitamin regimen, but not HIGH vitamin regimen.
本研究调查了母体补充角黄素（CX，6毫克/千克）和25-羟基胆钙化醇（25-OH-D，0.069毫克/千克）对两种不同维生素方案下樱桃谷鸭雏鸭生长性能的影响。总共780只母鸭和156只公鸭被随机分配到两种日粮中，一种添加CX和25-OH-D的混合物（CX+25-OH-D），另一种不添加，持续32周。在种鸭试验24周产的蛋孵化出的雏鸭（公母分开）采用NRC维生素方案喂养，在种鸭试验32周产的蛋孵化出的雏鸭（公母分开）采用高维生素方案（除生物素外，所有维生素水平均高于NRC维生素方案）喂养，持续14天。结果表明，母体补充CX+25-OH-D可增加NRC维生素方案下雏鸭出壳后7天的胫部色素沉着，以及高维生素方案下雏鸭出壳后14天的胫部色素沉着。母体补充CX+25-OH-D可提高NRC维生素方案下雏鸭的生长性能、抗氧化状态和血清磷水平；然而，在高维生素方案下的雏鸭中未观察到这些积极影响。在NRC和高维生素方案下，公雏鸭的生长性能均有所提高。胫部色素沉着、抗氧化状态、胫骨强度和血清磷的性别差异并不一致，因为它们取决于母体CX+25-OH-D状态或日粮维生素方案。数据表明，母体补充CX+25-OH-D对NRC维生素方案下的雏鸭很重要，但对高维生素方案下的雏鸭不重要。
