Ma Shouqing, Ma Meilei, Mu Chunlong, Yu Kaifan, Zhu Weiyun
Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science, Nanjing Agricultural University, Nanjing 210095, China.
Anim Nutr. 2015 Dec;1(4):289-292. doi: 10.1016/j.aninu.2015.12.002. Epub 2015 Dec 12.
This study was conducted to compare physiological characteristics between Meishan and Yorkshire piglets in their early lives. Six healthy purebred Meishan sows and Yorkshire sows with close farrowing dates were used in this research. The piglets sucked their respective sow's milk for 14 days, then they were slaughtered to collect samples of blood, pancreas, contents of stomach, jejunum, cecum, colon as well as feces for analysis of blood biochemical parameters, digestive enzymes, and volatile fatty acid (VFA). The results showed that Yorkshire piglets had higher concentrations of high-density lipoprotein cholesterol (HDL-C) and total cholesterol (TC) ( < 0.05). Gastric lipase activity was higher in Meishan piglets but Yorkshire piglets had higher lactase activity ( < 0.05). The total VFA together with acetate and propionate in cecum and colon were higher in Meishan piglets than in Yorkshire piglets ( < 0.05), but acetate in jejunum and ratio of acetate to propionate in colon were lower in Meishan piglets than in Yorkshire piglets ( < 0.05). In conclusion, in early suckling period, significant differences exist in host metabolism and intestinal microbial metabolism between Meishan and Yorkshire piglets.
本研究旨在比较梅山猪和约克夏仔猪早期的生理特征。本研究使用了6头健康的纯种梅山母猪和分娩日期相近的约克夏母猪。仔猪吸食各自母猪的乳汁14天，然后宰杀以采集血液、胰腺、胃内容物、空肠、盲肠、结肠以及粪便样本，用于分析血液生化参数、消化酶和挥发性脂肪酸（VFA）。结果表明，约克夏仔猪的高密度脂蛋白胆固醇（HDL-C）和总胆固醇（TC）浓度较高（P<0.05）。梅山仔猪的胃脂肪酶活性较高，但约克夏仔猪的乳糖酶活性较高（P<0.05）。梅山仔猪盲肠和结肠中的总挥发性脂肪酸以及乙酸和丙酸含量高于约克夏仔猪（P<0.05），但梅山仔猪空肠中的乙酸含量和结肠中乙酸与丙酸的比例低于约克夏仔猪（P<0.05）。总之，在早期哺乳阶段，梅山仔猪和约克夏仔猪在宿主代谢和肠道微生物代谢方面存在显著差异。
