Sampath Vetriselvi, Park Jae Hong, Pineda Lane, Han Yanming, Cho Sungbo, Kim In Ho
Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea.
Trouw Nutrition, Trouw Nutrition R&D, Amersfoort 3811 MH, The Netherlands.
J Anim Sci Technol. 2022 Mar;64(2):302-311. doi: 10.5187/jast.2022.e11. Epub 2022 Mar 31.
This study investigated the effect of a synergistic blend of free and buffered organic acid (FMP) on the performance of piglets born to sows supplemented with a blend of short- and medium-chain organic acids (SGG) during the late gestation and lactation period. A total of 150 multiparous sows (n = 50/treatment, Landrace × Yorkshire) were blocked (2.4 parity) and assigned to 1 of 3 dietary treatments: CON - corn-soybean meal-based basal diet, SGG-Low - CON+ 1.5 kg/ton SGG, and SGG-High - CON + 3kg/ton SGG. During weaning, 600 piglets (6.72 ± 0.5kg) which weaned from sows supplemented with 3 levels of SGG were allocated to 2 weaner diets (Control and FMP - 3kg/ton) following 3 × 2 factorial arrangement. Supplemental effects on performance were measured at d0-d21 and d 21-42, and the entire period. Pigs fed with FMP and born to sows supplemented with SGG-High gained more weight and ate more ( < 0.05) compared with those in the CON group in both phases, and with SGG-Low in the second phase. Over the entire post-weaning period, piglets born to sows supplemented with SGG-Low and SGG-High had a higher average daily gain (ADG) and body weight (BW) ( < 0.05). Regardless of sow treatment, pigs fed with an FMP diet had higher ADG ( < 0.001), BW ( = 0.045), and a lower feed conversion ratio ( = 0.033). Also, feeding FMP diets reduced the fecal and counts at d42. The current study indicates that sows fed SGG supplement had a positive carry-over effect on the post-weaning growth rate, and FMP supplement enhances the growth performance and reduced the number of and . Thus, the application of 3 kg/ton of SGG in sows' diet and subsequent feeding of piglets with FMP would be an effective strategy to improve growth rate and reduce pathogenic bacteria in post-weaned piglets.
本研究调查了游离和缓冲有机酸协同混合物（FMP）对在妊娠后期和哺乳期补充短链和中链有机酸混合物（SGG）的母猪所产仔猪生产性能的影响。总共150头经产母猪（每组n = 50头，长白×约克夏）按胎次（2.4胎）进行分组，并分配到3种日粮处理中的一种：CON组——基于玉米-豆粕的基础日粮；SGG-Low组——CON组日粮 + 1.5 kg/吨SGG；SGG-High组——CON组日粮 + 3 kg/吨SGG。断奶时，从补充3种水平SGG的母猪所产仔猪中选取600头（体重6.72 ± 0.5千克），按照3×2析因设计分配到2种断奶仔猪日粮（对照日粮和添加3 kg/吨FMP的日粮）中。在第0至21天、第21至42天以及整个试验期测定补充剂对生产性能的影响。在两个阶段，与CON组仔猪相比，采食FMP且其母猪补充SGG-High的仔猪增重更多、采食量更大（P<0.05），在第二阶段与SGG-Low组仔猪相比也是如此。在整个断奶后时期，母猪补充SGG-Low和SGG-High的仔猪平均日增重（ADG）和体重（BW）更高（P<0.05）。无论母猪的处理方式如何，采食FMP日粮的仔猪ADG更高（P<0.001）、BW更高（P = 0.045）且饲料转化率更低（P = 0.033）。此外，采食FMP日粮可降低第42天时粪便中[具体细菌名称未给出]和[具体细菌名称未给出]的数量。当前研究表明，补充SGG的母猪对断奶后生长速度有积极的延续效应，补充FMP可提高生长性能并减少[具体细菌名称未给出]和[具体细菌名称未给出]的数量。因此，在母猪日粮中添加3 kg/吨SGG并随后给仔猪饲喂FMP将是提高断奶后仔猪生长速度和减少病原菌数量的有效策略。
