Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714 South Korea.
J Anim Sci Technol. 2015 Dec 23;57:45. doi: 10.1186/s40781-015-0078-9. eCollection 2015.
Physical and chemical properties of feedstuffs can be changed by feed processing. Moreover, through various mechanisms, feed processing can affect growth performance and feed efficiency of swine, nutrition value of the feed. Weaning-to service-intervals (WSI), subsequent farrowing rates, and total-born litter sizes were determined by feed intake and metabolic state during lactation.
A total of 20 sows (Landrace × Yorkshire) with an average body weight (BW) of 266.1 kg 4 d before farrowing were used to determine the effect of feed processing on the performance of lactating sows and their offspring. The following two dietary treatments were used: 1) Crumble diet (C); and 2) Mash diet (M). Ten replications were used for each treatment. Back fat thickness of sows was measured 6 cm off the midline at the 10th rib using a real-time ultrasound instrument at 4 d before farrowing, 1 d after farrowing, and during weaning. Sow BW were also checked at 4 d before farrowing, 1 d after farrowing, and during weaning. Fecal score of sows were assessed on d 14. Fecal score of piglets were observed on d 7, 15, and 24. Data were analyzed using t-test procedure of SAS (2014) with sow as experimental unit.
No significant (p > 0.05) difference was observed in the reproduction performance of sows between the two treatments. In addition, there was no significant (p > 0.05) difference in the growth performance of piglets between the two treatments. Fecal score of sows or piglets showed no significant (p > 0.05) difference either.
In conclusion, different feed processing (mash or crumble) did not make any significant difference on the performance of lactation sow or their piglets.
饲料的物理和化学性质会在加工过程中发生变化。此外，通过各种机制，饲料加工会影响猪的生长性能和饲料效率、饲料营养价值。哺乳期的采食量和代谢状态决定了断奶至配种间隔（WSI）、随后的产仔率和总产仔数。
共有 20 头体重（长白猪×约克夏猪）为 266.1kg 的母猪在分娩前 4 天用于确定饲料加工对泌乳母猪及其后代性能的影响。使用以下两种日粮处理：1）碎粒日粮（C）；2）湿拌日粮（M）。每个处理使用 10 个重复。在分娩前 4 天、分娩后 1 天和断奶时，使用实时超声仪在第 10 肋中线 6cm 处测量母猪背膘厚。在分娩前 4 天、分娩后 1 天和断奶时还检查母猪的 BW。在第 14 天评估母猪的粪便评分。在第 7、15 和 24 天观察仔猪的粪便评分。使用 SAS（2014）中的 t 检验程序对数据进行分析，以母猪为实验单位。
两种处理方式对母猪的繁殖性能没有显著差异（p>0.05）。此外，两种处理方式对仔猪的生长性能也没有显著差异（p>0.05）。母猪或仔猪的粪便评分也没有显著差异（p>0.05）。
总之，不同的饲料加工（湿拌或碎粒）对泌乳母猪及其仔猪的性能没有显著影响。
