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首页> 外文期刊>The British Journal of Nutrition >Peripartal feeding strategy with different n-6:n-3 ratios in sows: effects on sows' performance, inflammatory and periparturient metabolic parameters
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Peripartal feeding strategy with different n-6:n-3 ratios in sows: effects on sows' performance, inflammatory and periparturient metabolic parameters

机译：母猪不同n-6：n-3比例的围产期喂养策略：对母猪生产性能，炎症和围产期代谢参数的影响

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摘要

The present study aimed to investigate the effects of two lactation sow feeds, differing in n-6:n-3 ratio, given to sows before parturition on body condition and feed intake, periparturient metabolism (leptin, insulin, triiodothyronine (T-3) and thyroxine (T-4)), inflammatory parameters (TNF alpha, IL-6, serum amyloid A (SAA)) and on piglet performance (birth weight, survivability). The feed contained either a low (supplemented with fish oil; f groups) or high (supplemented with sunflower-seed oil; s groups) n-6:n-3 ratio and was administered from 8d (f8, s8) or 3d (f3, s3) before parturition until weaning. The level of inclusion of the oil sources was 2%. Seventy-two sows were randomly allocated 8d before expected farrowing into four groups: f3, f8, s3, s8. Type of feed had a significant influence on the sows' feed intake during the first 2 d of lactation (s < f), leptin on days 4, 3 and 2 before parturition (f < s), insulin on day 1 after parturition (f < s), T4 on the day before parturition (s < f) and rectal temperature on the day after parturition (f < s). Onset of administration of the feed (3 v. 8 d) had significant effects on leptin on day 2 before parturition (8 < 3), insulin on day 4 before parturition (3 < 8), T3 on day 4 before parturition and on the day after parturition Q < 8), SAA on day 3 after parturition (8 < 3) and piglet weight during the first days postpartum Q < 8). In conclusion, under the A present conditions, a lactation feed low in n-6:n-3 ratio administered from 8d before farrowing ensures improved feed intake during the first days postpartum and was associated with a better metabolic change and inflammatory profile in sows in the periparturient period.
机译：本研究旨在研究分娩前给母猪的两种n-6：n-3比率不同的泌乳母猪饲料对体况和采食量，围产期代谢（瘦素，胰岛素，三碘甲腺氨酸（T-3）的影响和甲状腺素（T-4）），炎性参数（TNFα，IL-6，血清淀粉样蛋白A（SAA））以及对仔猪的生长性能（出生体重，生存能力）。饲料中n-6：n-3的比例较低（补充鱼油; f组）或较高（补充向日葵籽油; s组），喂食时间为8d（f8，s8）或3d（f3） ，s3）分娩前直至断奶。油源的含量为2％。在预期分娩前的第8天，将72只母猪随机分为4组：f3，f8，s3，s8。饲喂类型对母猪泌乳期前2天的采食量（s

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