Yun Won, Song Minho, Lee Jihwan, Oh Hanjin, An Jiseon, Kim Gokmi, Lee Sungdae, Lee Suhyup, Kim Hyeun Bum, Cho Jinho
Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea.
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
J Anim Sci Technol. 2020 Jul;62(4):460-467. doi: 10.5187/jast.2020.62.4.460. Epub 2020 Jul 31.
The effects of arginine (Arg) and methionine (Met) supplementation on nutrient use in pigs were determined under hot season conditions. A total of five experimental diets including basal diet (CON) were supplemented with two types of amino acids (Arg and Met) and two different amounts of amino acids (0.2% and 0.4%). Under hot season condition, pigs fed with additional Arg were significantly higher in average daily gain (ADG) than the CON group and the ADG increased linearly ( < 0.05) with increasing Arg supplementation. But there was no significant difference with Met supplementation ( > 0.05). The apparent ileal digestibility (AID) of amino acids had no significant difference among treatments ( > 0.05), while d-reactive oxygen metabolites (d-ROMs) concentration in treatments with Arg supplementation, were significantly higher ( < 0.05) than other treatments. In conclusion, exposure of pigs to heat stress does not affect the AID of amino acid, whereas pig fed with additional Arg improved ADG and feed efficiency under heat stress condition.
在炎热季节条件下，测定了补充精氨酸（Arg）和蛋氨酸（Met）对猪营养利用的影响。总共五种实验日粮，包括基础日粮（CON），分别补充了两种氨基酸（Arg和Met）以及两种不同剂量的氨基酸（0.2%和0.4%）。在炎热季节条件下，额外补充Arg的猪的平均日增重（ADG）显著高于CON组，且随着Arg补充量的增加，ADG呈线性增加（P<0.05）。但补充Met组无显著差异（P>0.05）。各处理间氨基酸的表观回肠消化率（AID）无显著差异（P>0.05），而补充Arg的处理组中d-活性氧代谢产物（d-ROMs）浓度显著高于其他处理组（P<0.05）。总之，猪暴露于热应激下不影响氨基酸的AID，而在热应激条件下额外补充Arg的猪提高了ADG和饲料效率。
