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首页> 外文学位 >The effects of carnitine and/or chromium on blood hormones and metabolites of gestating swine.
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The effects of carnitine and/or chromium on blood hormones and metabolites of gestating swine.

机译：肉碱和/或铬对妊娠猪血激素和代谢产物的影响。

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摘要

A total of 44 gestating sows (parity = 2.0; BW = 208 kg) were used to determine the effects of dietary L-carnitine and/or chromium picolinate (CrP) on daily bolld hormone and metabolite profiles. Diets were formulated as a 2 x 2 factorial with L-carnitine (0 or 50 ppm) and CrP (0 or 200 ppb) and were fed from breeding, through gestation, lactation, and 30 d into the following gestation when blood collection occurred. Sows were fed one meal per day during gestation (2.1 kg) and ad libitum during lactation. Blood (plasma) was collected at feeding, then every 15 min for the first 3 h after feeding, and at 6, 9, 15, 20, and 24 h after feeding. The effects of chromium picolinate were most evident immediately after feeding (0–3 h) with sows having decreased (P 0.05) insulin and c-peptide, whereas sows fed diets containing L-carnitine had decreased (P 0.05) NEFA and urea N (PUN) in the fasting state (6–24 h post-feeding). Sows fed both L-carnitine and CrP exhibited intermediate responses. Sows fed the diet containing L-carnitine had greater (P 0.05) leptin concentrations and numerically greater (P = 0.11) IGF-1 and IGFBP-3 (P = 0.06) compared to other sows. No treatment differences were observed for glucagon or triglycerides (P > 0.10). In summary, the changes in metabolites and metabolic hormones indicate that both L-carnitine and CrP influence energy metabolism of gestating sows; however, their effects are different. Thus, the improvement in energy status from adding both L-carnitine and CrP may have an additive effect on reproductive performance of sows.
机译：总共使用44头妊娠母猪（胎次= 2.0；体重= 208千克）来确定日粮左旋肉碱和/或吡啶甲酸铬（CrP）对每日bollt激素和代谢产物的影响。日粮配制为2 x 2分解因子，含左旋肉碱（0或50 ppm）和CrP（0或200 ppb），并在繁殖，妊娠，哺乳和第30 d采血后进行采血。妊娠期间每天给母猪喂一顿饭（2.1千克），泌乳期自由喂。进食时收集血液（血浆），然后在进食后的头3小时，进食后的6、9、15、20和24小时每15分钟收集一次血液。饲喂（0–3 h）后母猪的胰岛素和c-肽含量降低（ P <0.05），而吡啶甲酸铬的影响最为明显，而饲喂含L-肉碱的饲料的母猪则降低了（ P <0.05）。 P <0.05）禁食状态（喂食后6-24小时）的NEFA和尿素N（PUN）。饲喂左旋肉碱和CrP的母猪表现出中间反应。饲喂含左旋肉碱的母猪的瘦素浓度较高（ P <0.05），其IGF-1和IGFBP-3含量较高（ P = 0.11）（ P = 0.06）。胰高血糖素或甘油三酸酯未见治疗差异（ P

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  • 作者

    Woodworth, Jason Clark.;

  • 作者单位

    Kansas State University.;

  • 授予单位 Kansas State University.;
  • 学科 Agriculture Animal Culture and Nutrition.
  • 学位 Ph.D.
  • 年度 2002
  • 页码 165 p.
  • 总页数 165
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 饲料;
  • 关键词

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