Van den Brand H, Soede N M, Kemp B
Adaptation Physiology Group, Wageningen Institute of Animal Sciences, Wageningen University and Research Centre, P.O. Box 338, Wageningen 6700 AH, The Netherlands.
Anim Reprod Sci. 2006 Feb;91(3-4):353-8. doi: 10.1016/j.anireprosci.2005.04.009. Epub 2005 Jun 20.
Effects of supplementation of dextrose to the diet of sows during the weaning-to-estrus interval (WEI) on subsequent litter size and within-litter variation were investigated. After weaning, 223 sows (first to fifth parity) were fed 3.5 kg/d. Half of the sows additionally received 150 g of dextrose per day as topdressing on the feed. WEI and estrus duration were determined as well as subsequent pregnancy rate and litter size. Piglets were weighed individually at birth and at weaning (day 26.4; S.D.: 2.5). Supplementation of dextrose to the diet during the WEI did not affect WEI (106 h), pregnancy rate (88.2%), farrowing rate (84.2%), subsequent litter size (total born: 13.70), or birth weight (1599 g). The within-litter variation in birth weight was lower in sows on the dextrose treatment (CV: 17.5% versus 21.2% for the dextrose and control group, respectively, P=0.03). From this experiment, we concluded that addition of dextrose during the weaning to estrus interval did not increase litter size, but seems to affect the uniformity in birth weight of the litter.
研究了在断奶至发情间隔期（WEI）给母猪日粮补充葡萄糖对后续产仔数和窝内变异的影响。断奶后，223头母猪（第1至第5胎）每天饲喂3.5千克饲料。其中一半母猪每天额外在饲料上添加150克葡萄糖作为追肥。测定了WEI和发情持续时间以及后续妊娠率和产仔数。仔猪在出生时和断奶时（第26.4天；标准差：2.5）进行个体称重。在WEI期间给日粮补充葡萄糖对WEI（106小时）、妊娠率（88.2%）、产仔率（84.2%）、后续产仔数（总出生数：13.70）或出生体重（1599克）没有影响。葡萄糖处理组母猪窝内出生体重的变异较低（葡萄糖组和对照组的变异系数分别为17.5%和21.2%，P = 0.03）。从该实验中，我们得出结论，在断奶至发情间隔期添加葡萄糖不会增加产仔数，但似乎会影响窝内出生体重的均匀性。
