title: Effects of 25-hydroxycholecalciferol supplementation in maternal diets on milk quality and serum bone status markers of sows and bone quality of piglets.
abstract: Twenty primiparous sows were allocated to two treatments to evaluate the effects of maternal 25-hydroxycholecalciferol (25OHD3) supplementation during gestation and lactation on milk quality and serum bone status markers of sows and bone quality of piglets. Immediately after mating, sows were randomly allotted to one of two diets supplemented with 50 µg/kg 25OHD3or basal diets without 25OHD3. Blood and milk samples were obtained. At birth and weaning, 10 piglets from each treatment were killed for bone quality analysis. 25OHD3-fed sows provided one more piglet at farrowing and 1.17 more piglets at weaning than sows fed basal diets. The contents of solids not-fat, protein, fat or lactose were increased in milk from days 7 and 14 of lactation in 25OHD3-supplemented sows and 25OHD3concentrations in milk were increased by dietary 25OHD3supplementation. Dietary 25OHD3supplementation increased serum alkaline phosphatase activity but had no effect on serum tartrate-resistant acid phosphatase activity of sows. Maternal 25OHD3supplementation improved bone strength, density and ash content of newborn piglets rather than those of weaning piglets. In conclusion, 25OHD3supplementation in maternal diets improved reproductive performance, milk quality and bone status of sows as well as bone quality of newborn piglets.
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Yuling
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhuo
authors.affiliation: Tongwei Co. LTD, Chengdu, Sichuan, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Lv
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Lin
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Feng
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Zhengfeng
authors.initials: Z
authors.lastname: Fang
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Lianqiang
authors.initials: L
authors.lastname: Che
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: Shengyu
authors.initials: S
authors.lastname: Xu
authors.affiliation: Animal Nutrition Institute of Sichuan Agricultural University, Ya'an, Sichuan, China.
authors.forename: De
authors.lastname: Wu
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D000818:Animals; D000831:Animals, Newborn; D015519:Bone Density / Q000187:drug effects*; D001842:Bone and Bones / Q000378:metabolism*; D002112:Calcifediol / Q000008:administration & dosage* / Q000378:metabolism / Q000494:pharmacology; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D005260:Female; D007774:Lactation / Q000187:drug effects*; D008431:Maternal-Fetal Exchange / Q000502:physiology*; D008892:Milk / Q000378:metabolism*; D011247:Pregnancy / Q000378:metabolism*; D012098:Reproduction / Q000187:drug effects; D013552:Swine / Q000378:metabolism* / Q000502:physiology*
chemical_list: D000469:Alkaline Phosphatase; D002112:Calcifediol
keywords: 25-hydroxycholecalciferol; bone quality; milk quality; piglet; sow