动物营养学报 >

2016 , Vol. 28 >Issue 4: 1050 - 1059

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.04.012

猪营养 Swine Nutrition

母猪妊娠期营养水平对后代仔猪肌肉生长和发育的影响

  • 苏国旗 ,
  • 王军 ,
  • 曹猛 ,
  • 车炼强 ,
  • 方正锋 ,
  • 林燕 ,
  • 徐盛玉 ,
  • 吴德
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  • 四川农业大学动物营养研究所, 成都 611130

收稿日期: 2015-10-15

  网络出版日期: 2016-04-11

基金资助

国家自然科学基金(31072044);公益性行业(农业)科研专项(201203015)

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Effects of Nutrient Levels of Sows During Pregnancy on Muscle Growth and Development of Offspring Piglets

  • SU Guoqi ,
  • WANG Jun ,
  • CAO Meng ,
  • CHE Lianqiang ,
  • FANG Zhengfeng ,
  • LIN Yan ,
  • XU Shengyu ,
  • WU De
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  • Institute of Animal Nutrition of Sichuan Agricultural University, Chengdu 611103, China

Received date: 2015-10-15

  Online published: 2016-04-11

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摘要

本试验旨在研究母猪妊娠期营养水平对后代仔猪肌肉生长和发育的影响。选取体重和日龄相近的长大(LY)杂交后备母猪33头,按体重[(150±9) kg]和日龄[(255±10)日龄]随机分到3个组:低营养水平组(LN组)、适宜营养水平组(AN组)和高营养水平组(HN组)。每组11个重复,每个重复1头母猪。妊娠前期(1~30 d)各组营养摄入量分别是0.75、1.00和1.50倍维持需要,妊娠中期(31~90 d)在前期基础上提高20%,妊娠后期(91~112 d)在中期基础上提高25%。结果表明:1)与LN组相比,AN和HN组仔猪出生体重和断奶体重及初生仔猪肌肉重(除比目鱼肌)显著或极显著提高(P<0.05或P<0.01);AN组仔猪半腱肌和背最长肌相对重极显著高于LN组(P<0.01),AN组新生仔猪肌肉蛋白质浓度显著或极显著高于LN和HN组(P<0.05或P<0.01)。2)AN组新生仔猪背最长肌肌球蛋白重链Ⅱx的mRNA表达量极显著低于LN组(P<0.01)。3)AN组新生仔猪背最长肌生肌调节因子4的mRNA表达量显著高于LN和HN组(P<0.05)。由此可见,母猪妊娠期营养水平能显著影响仔猪出生和断奶体重及肌肉重,但是过高或者过低的营养水平都会降低后代肌肉重和肌肉蛋白质的浓度,这可能与生肌调节因子4基因差异表达有关。

关键词： 母猪; 营养水平; 仔猪; 肌肉

本文引用格式

苏国旗 , 王军 , 曹猛 , 车炼强 , 方正锋 , 林燕 , 徐盛玉 , 吴德 . 母猪妊娠期营养水平对后代仔猪肌肉生长和发育的影响[J]. 动物营养学报, 2016 , 28(4) : 1050 -1059 . DOI: 10.3969/j.issn.1006-267x.2016.04.012

Abstract

This experiment was conducted to investigate the effects of nutrient levels of sows during pregnancy on muscle growth and development of offspring piglets. Thirty-three crossbred Landrace×Yorkshine(LY) gilts with similar age [(255±10) days of age] and body weight [(150±9) kg] were randomly assigned to three groups:low nutrient level(LN) group, appropriate nutrient level(AN) group and high nutrient level(HN) group. Each group contained 6 replicates and 1 sow per replicate. During early pregnancy(1 to 30 d), 0.75, 1.00 and 1.50 maintenance requirements of nutrient was provided to LN, AN and HN groups, respectively. During middle pregnancy(31 to 90 d) and late pregnancy(91 to 112 d), dietary nutrient levels were increased by 20% and 25% compared with early pregnancy, respectively. The results showed as follows:1) compared with LN group, the birth weight, weanling weight and muscle weight(except soleus) of piglets of AN and HN groups were significantly increased(P<0.05 or P<0.01), the semitendinosus/body weight and longissimus dorsi/body weight of piglets of AN group were significantly higher than those of LN group(P<0.01), the muscle protein concentration of newborn piglets of AN group was significantly higher than that of LN and HN groups(P<0.05 or P<0.01). 2) The longissimus dorsi myosin heavy chain Ⅱx mRNA expression of newborn piglets of AN group was significantly lower than that of LN group(P<0.01). 3) The longissimus dorsi myogenic regulatory factor 4 mRNA expression of newborn piglets of AN group was significantly higher than that of LN and HN groups(P<0.05). In conclusion, birth weight weanling weight and muscle weight of piglets is remarkably influenced by nutrient levels of sows during pregnancy. However, the relative muscles weight and protein concentration of offspring is damaged impaired by maternal over and under nutrition, which may be associated with the expression of myogenic regulatory factor 4.

Key words： sows; nutrient levels; piglets; muscle

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