title: Effects of Dietary Supplementation of Oregano Essential Oil to Sows on Oxidative Stress Status, Lactation Feed Intake of Sows, and Piglet Performance.
abstract: Fifty-four multiparous large white sows were used to determine the effects of supplementing oregano essential oil (OEO) to the gestation and lactation diets on oxidative stress status, lactation feed intake, and their piglet performance. Two groups were fed diets with (OEO; n = 28) or without (Control; n = 26) supplemental 15 mg/kg OEO during gestation and lactation. The serum levels of reactive oxygen species (ROS) (P < 0.05), 8-hydroxy-deoxyguanosine (8-OHdG) (P < 0.05), and thiobarbituric acid reactive substances (TBARS) (P < 0.05) were higher during gestation (days 90 and 109) and lactation (days 1 and 3) than in early gestation (day 10). Compared with the control group, the OEO diet significantly reduced sows' serum concentrations of 8-OHdG (P < 0.05) and TBARS (P < 0.01) on day 1 of lactation. The OEO diet increased the sows' counts of faecal lactobacillus (P < 0.001) while reducing Escherichia coli (P < 0.001) and Enterococcus (P < 0.001). In the third week of lactation the treatment tended to increase sow's feed intake (P = 0.07), which resulted in higher average daily gain (P < 0.01) of piglets. Our results demonstrated that there is an increased systemic oxidative stress during late gestation and early lactation of sows. The OEO supplementation to sows' diet improved performance of their piglets, which may be attributed to the reduced oxidative stress.
authors.affiliation: Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Chengquan
authors.initials: C
authors.lastname: Tan
authors.affiliation: Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Hongkui
authors.initials: H
authors.lastname: Wei
authors.affiliation: YangXiang Joint Stock Company, Guigang 53700, China.
authors.forename: Haiqing
authors.initials: H
authors.lastname: Sun
authors.affiliation: Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Ao
authors.affiliation: Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Guang
authors.initials: G
authors.lastname: Long
authors.affiliation: Key Laboratory of Swine Breeding and Genetics of the Agricultural Ministry, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Siwen
authors.initials: S
authors.lastname: Jiang
authors.affiliation: Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Peng
mesh_terms: D000821:Animal Feed; D000818:Animals; D001942:Breast Feeding; D019587:Dietary Supplements; D007774:Lactation / Q000187:drug effects / Q000502:physiology; D009822:Oils, Volatile / Q000008:administration & dosage* / Q000737:chemistry; D031341:Origanum / Q000737:chemistry; D018384:Oxidative Stress / Q000187:drug effects*; D012098:Reproduction / Q000187:drug effects; D013552:Swine / Q000254:growth & development* / Q000378:metabolism
chemical_list: D009822:Oils, Volatile