在妊娠日粮中添加菜籽粕对母猪繁殖性能、血液指标和乳汁成分的影响。
Effect of rapeseed meal supplementation to gestation diet on reproductive performance, blood profiles and milk composition of sows.
作者信息
Choi H B, Hong J S, Jin S S, Jung S W, Jang J C, Jeong J H, Kim Y Y
机构信息
Department of Agricultural Biotechnology, College of Agricultural Life Science, Seoul National University, Seoul 08826, Korea.
CJ Cheiljedang, CJ blossom park, Suwon 16495, Korea.
出版信息
Asian-Australas J Anim Sci. 2018 Mar;31(3):386-394. doi: 10.5713/ajas.17.0015. Epub 2017 Jul 17.
OBJECTIVE
This experiment evaluated the effect of dietary supplementation levels of rapeseed meal (RSM) in gestation diets on reproductive performance, blood profiles, milk composition of sows, and growth of their progeny.
METHODS
A total of 55 mixed-parity sows (Yorkshire×Landrace; average parity = 3.82) with an initial body weight (BW) of 193.0 kg were used in this experiment. Sows were allotted to one of 5 treatments at breeding based on BW and backfat thickness in a completely randomized design. Treatments consisted of dietary RSM supplementation levels (0%, 3%, 6%, 9%, and 12%) in gestation diets. During lactation all sows were fed a common lactation diet with no RSM supplementation.
RESULTS
Body weight, backfat thickness, litter size, lactation feed intake, and milk composition of sows, and growth of their progeny were not different among dietary treatments. In blood profiles, a quadratic increase (Quadratic, p<0.05) in serum triiodothyronine (T3) concentration and a linear increase (Linear, p<0.01) in serum thyroxine (T4) concentration were observed at d 110 of gestation as dietary RSM supplementation levels increased. However, serum T3 and T4 concentrations in lactating sows and their piglets were not affected by RSM supplementation of gestation diets. Concentrations of serum total cholesterol and low density lipoprotein cholesterol in sows were not influenced by dietary treatments, whereas serum glucose level in sows decreased linearly at d 110 of gestation (Linear, p<0.05) by increasing dietary RSM supplementation in gestation diets.
CONCLUSION
The RSM could be supplemented to gestation diets up to 12% with no detrimental effects on reproductive performance and growth of their progeny. However, increasing supplementation levels of RSM in gestation diets may increase serum T3 and T4 concentrations and decrease serum glucose concentration of sows in late gestation.
目的
本试验评估妊娠日粮中添加不同水平菜籽粕（RSM）对母猪繁殖性能、血液指标、乳汁成分及其后代生长的影响。
方法
本试验选用55头初产体重（BW）为193.0 kg的经产母猪（约克夏×长白；平均胎次 = 3.82）。根据体重和背膘厚度，采用完全随机设计，将母猪在配种时分为5个处理组之一。处理组包括妊娠日粮中不同水平的RSM添加量（0%、3%、6%、9%和12%）。在哺乳期，所有母猪均饲喂不含RSM的普通泌乳日粮。
结果
不同日粮处理组间母猪的体重、背膘厚度、产仔数、泌乳期采食量、乳汁成分及其后代生长情况均无差异。在血液指标方面，随着妊娠日粮中RSM添加水平的增加，妊娠第110天时血清三碘甲状腺原氨酸（T3）浓度呈二次方增加（二次方，p<0.05），血清甲状腺素（T4）浓度呈线性增加（线性，p<0.01）。然而，妊娠日粮中添加RSM对泌乳期母猪及其仔猪的血清T3和T4浓度没有影响。日粮处理对母猪血清总胆固醇和低密度脂蛋白胆固醇浓度没有影响，而随着妊娠日粮中RSM添加量的增加，妊娠第110天时母猪血清葡萄糖水平呈线性下降（线性，p<0.05）。
结论
妊娠日粮中RSM添加量可达12%，对母猪繁殖性能及其后代生长无不良影响。然而，妊娠日粮中RSM添加水平的增加可能会提高妊娠后期母猪的血清T3和T4浓度，并降低血清葡萄糖浓度。
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